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High Range Type

1. 2 5 ry SV1 SV2 3 SV3 Item Part No Qty Description Item Part No Qty Description 1 1 Converter see page 2 SV3 1 Motor Valve 2 1 Detector see page 3 K9411DP for 100 110 V AC Manufactured before Feb 2009 3 K9411UA 1 Zero Filter see page 4 K9411DT for 100 110 V AC Manufactured after Feb 2009 4 k9411GC Head Tank without Pinch Valve K9411DQ for 200 220 V AC Manufactured before Feb 2009 5 1 Tank Assembly with Pintch Valve K9411DU for 200 220 V AC Manufactured after Feb 2009 100 110V AC SV4 1 Solenoid Valve 1 Tank Assembly with Pinch Valve A1113MV for 100 V AC 200 220V AC A1114MV for 200 V AC 6 K9411JC 1 Head Tank A1115MV for 110 V AC sv1 1 Valve A1116MV for 220 V AC K9411JG for 100 110 V AC K9411JH for 200 220 V AC SV2 1 Solenoid Valve A1113MV for 100 V AC A1114MV for 200 V AC A1115MV for 110 V AC A1116MV for 220 V AC All Rights Reserved Copyright 1999 Yokogawa Electric Corporation CIMPL 12E04A03 02E YOKOGAWA Subject to change without notice 1st Edition Dec 1999 YK Yokogawa Electric Corporation 4th Edition Aug 2009 YK K9412EL CONVERTER GO
2. Item Part No Qty Description Item Part No Qty Description 1 1 Mounting hardware 3 A1109EF 1 Fuse 1A K9411ZG Option Code in case of P 4 A1113EF 1 Fuse 3A K9411ZH Option Code in case of R 2 1 Converter CMPL 12E04A03 02E for TB450G L 4 1 and 3 for TB450G L 5 1 and 3 for TB450G L 4 6 and 7 for TB450G L 5 6 and 7 for TB450G H 4 1 and 3 for TB450G H 5 1 and 3 for TB450G H 4 6 and 7 for TB450G H 5 6 and 7 All Rights Reserved Copyright 1999 Yokogawa Electric Corporation 4th Edition Aug 2009 YK K9412AA DETECTOR 4th Edition Aug 2009 YK All Rights Reserved Copyright 1999 Yokogawa Electric Corporation Item Part No Qty Description 1 1 Mounting hardware K9410DC Option Code in case of P Option Code in case of R 2 L9813WE 1 Clamp 3 K9412AK 1 Lamp Assembly 4 K9412BY 1 Holder 5 L9811CV 1 Cable Gland 6 1 Cable Assembly CMPL 12E04A03 02E K9411UA ZERO FILTER 1 micron filter Item Part No 1 K9008ZD 2 K9411UB 3 K9008ZE 4 k9411UD Qty 1 Description Filter Element 1 micron Case Plate O Ring CMPL 12E04A03 02E All Rights
3. 288 F27301 EPS IM 12E04A03 02E 2 9 2 7 4 Head Tank With Pinch Valve K9411JA K9411JB 0171 1 Unit mm Tube size 033X925 Tube size 022X015 F27401 EPS 2 7 5 Mounting Bracket for Head Tank Part No K9411BB 40 90 100 6 06 2hole Unit mm a 5 Eene e I E gt ot 1 oO A O fee O af fe l i 300 a a 2 M5 Surface 2 6 2hole 2 6 2hole 7 PA pere Surface Back 96 2hole Both side 2 foe le f 25 F27501 EPS 2 10 IM 12E04A03 02E 2 SPECIFICATIONS 2 8 Example Piping Diagram Recommended systems shown below 2 8 1 Without Automatic Cleaning and Automatic Zero Calibration CELL Detector HT Head Tank Defoaming Tank F1 F2 Zero Filter V1 to V5 Manual Operaled Valve Sampling Water VP16 gt q Tap Water VP16 DI V2 V3 F1 1 micron filter V4 Drain Water VP40 F28101 EPS Figure 2 5 2 8 2 With Automatic Cleaning without Automatic Zero Calibration CELL Detector HT Head Tank Defoaming Tank Fi F2 Zero Filter svi Pinch Valve sv2 Solenoid Valve V1 to V4 Manual Operaled Valve Sampling Water VP16 Tap Water VP
4. 2 and 3 The analog output is sent out by being selected for one of the output ranges 1 2 or 3 There are three output range selections as shown below e Auto range selection e Remote range selection e Local range selection For details on selection see 14 15 and 16 in Section 6 6 In this item the setting of upper and lower limit values in output ranges 1 2 and 3 is described taking output range 1 as an example Example of display 1 Select FUNCTION 1 in the lt PROGRAM1 L00 00 NTU gt mode If the lower limit is not to be changed start operation from step 6 2 Press the gt key L0000 NTU The display is now ready for determination of the decimal point position 3 Determine the decimal point position with the L0 000 NTU gt key Every time the gt key is pressed the decimal point moves to the right one digit and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key L0 000 NTU The most significant digit flashes and waits for the numerical value entry 5 Select a digit with the gt key and set the desired L0 500 NTU lower limit using the A or v key Every time the gt key is pressed the flashing digit moves to the right one digit and when the least signifi cant digit is reached it returns to the most significant digit 6 When press ENT key current upper limit is H10 00 NTU indic
5. 13 Lamp life 1 14 Failure in automatic zero calibration 2 Detected if the lamp voltage reaches the upper control limit The upper limit is approx 5 4 V across terminals P1 and P2 Detected if the zero input value in automatic zero calibration is out of the permissible range The permissible range is 100 mV MEAS PROGRAM2 PROGRAM2 15 Upper and lower limit alarm 3 Detected if the turbidity signal exceeds the upper or lower limit setpoint When shipped from the factory these are set at 10 lower and 2200 upper NTU MEAS PROGRAM2 flashes 16 CPU failure CPU failure Normally this does not occur All modes Only the FAIL lamp is lit and no operations are accepted T51002 EPS In the FAIL lamp column O means the lamp lights and X the lamp goes out The items for detected failures for which both the mode and function are described can be selected for execution stop of detection see Section 6 7 Errors detected other than in calibration are automatically reset at the time when the cause of a failure is removed If the FAIL lamp is lit error numbers can be confirmed with FUNCTION A in the lt MAINT gt mode while the error can be reset with FUNCTION B in the lt MAINT gt mode If the FAIL lamp is lit analog output mode selection non hold hold or preset is possible with FUNCTION
6. Press the calibration plate to the edge of the measuring cell Screw A F41901 EPS Figure 4 4 Calibration Plate Setting 4 1 10 Feeding Measured Water and Adjusting Measured Water Flow Rate 1 Press the MODE key to change the mode to lt MEAS gt 2 Set up the hand operated valves to the measurement positions see Table 4 1 in Section 4 2 Note 1 SV1 to SV4 are automatically set up to the measurement positions when the mode is set to lt MEAS gt 3 Open V1 and feed the measured water to the head tank deaeration tank Adjust the opening level of V1 so that the measured water is fed to the head tank at 2 L min or greater Note 2 For how to check the flow rate of feed to the head tank see note 3 in Section 4 1 4 4 Check whether the flow rate of feed to the detector is within 1 5 to 2 L min If the flow rate exceeds this range adjust it according to the procedure described in Section 4 1 5 Note 3 See note 4 in Section 4 1 4 for how to check the flow rate of feed to the detector 4 6 IM 12E04A03 02E 4 OPERATION 4 2 Operation This section describes measurement in the lt MEAS gt mode the on off operation of each valve in automatic cleaning and automatic zero calibration and the settings related to operation Refer to 2 8 Example Piping System Diagrams for each valve s operation The actions of the valves are described in reference with piping diagrams shown in Section 2 8 4 2 1 Star
7. Error code indication Error reset E CHEC Calibration of lamp control reference value 0 6000 to 2 3000V The lamp voltage is set at 4 9 V and the reference signal is stored as the reference value Version number indication Password setting for changing the adjustment mode Not to be selected 1 Set the sensitivity after the reference sensitivity calibration performed upon shipment from the factory to 100 and check the slope in normal span calibration taking this value as a reference Note 1 The values in the column for the initial value are those shown when the memory storing the data is initialized These are partially different from the values set upon shipment from the factory Note 2 If a function code which is not used is selected is displayed T060203 EPS IM 12E04A03 02E 6 5 6 2 3 gt nmoO0OwWw Poon Functions in lt PROGRAMI1 gt Mode Table 6 5 gives details on the functions in the lt PROGRAM1 gt mode Table 6 5 Functions in lt PROGRAMI1 gt Mode Operation Output range 1 setting Output range 2 setting Output range 3 setting Average coefrircient setting time constant setting Setting of output value in a failed condition Output setting of line segment approximation Auto range changeover point setting Upper limit alarm setting Lower limit alarm setting Setting of turbidity value by calibration plate Setting of zero corr
8. 6 45 6 7 Operation in lt PROGRAM2 gt Mode In this mode the time setting operations for automatic cleaning and automatic zero calibration the operation settings for contact output and the selection operations for part of execution stop of the failure detection function are carried out e FUNCTION 1 to FUNCTION F Time settings contact output operation settings e FUNCTION 1 to FUNCTION F Selection for part of execution stop of the failure detection functions Key operations made by specifying a function in the lt PROGRAM2 gt mode and the displays following those key operations are described in the following order 1 Time setting for automatic cleaning and automatic zero calibration 2 Selection of contact output operation open close 3 Selection of execution stop of the failure detection functions 1 Time Setting for Automatic Cleaning and Automatic Zero Calibration FUNCTION 1 to FUNCTION A Table 6 12 shows a list of setting times and operation functions For details on automatic cleaning and automatic zero calibration operations see subsections 4 2 2 and 4 2 3 For specification without automatic cleaning or automatic zero calibration this setting is non operative Table 6 12 Time settings for Automatic Cleaning and Automatic zero Calibration Value upon shipment Setting FUNCTION Range of setting from factory 0 1 to 24 0 hours 1 to 10 times 1 to
9. 5 in the lt PROGRAM I gt mode If the FAIL lamp is lit FAIL contact output is also obtained If an Errl1 to 15 Err18 Err25 or Err26 failure is detected error numbers are output by virtue of digital output see Section 2 1 digital communication specifications If Errl6 or Err17 is detected other operations cannot be accepted with the error number displayed 1 The TB450G controls the lamp voltage so that a constant light quantity is obtained If the amount of lamplight diminishes the lamp voltage increases Thus the lamp voltage may be an index for the life of the lamp 2 Err26 is detected only if the specifications are for automatic zero calibration IM 12E04A03 02E 5 FUNCTIONS 3 15 upper and lower limit alarm setpoints can be set using FUNCTION 8 and 9 in the lt PROGRAM 1 gt mode IM 12E04A03 02E 5 3 5 2 Functions Related to Analog Output 5 2 1 Output Range Selection The output range can be selected among three ranges auto range remote range and local range The relationship between these is as shown in Figure 5 1 Table 5 2 shows the setting modes and function numbers related to the output range selection Operation Auto range T Execution Auto range Stop Remote range Execution Remote range Stop Local range Note The turbidimeter is shipped with the output range set to 1 for the local range eEsins he Figure 5 1 Outpu
10. CPU S AD Output E Amp lifier Lamp lt 1 Power sappl a pey Amp lifier Turbidity Reference element element Lens Refelected lighr Drain Measuring water F1201 EPS IM 12E04A03 02E a 1 3 Turbidity Standard Calibrations of the zero point and span of a turbidity meter should be performed in reference to the following section on standard liquids 1 3 1 Standard Water for Zero Calibration 1 Standard Water for Zero Calibration Tap water filtrated by a micro filter is used as the standard water for zero calibrations referred to as zero calibration water Tap water should be filtrated with a 1 micron micro filter before using it for zero calibrations However if the measuring range is greater than 200 NTU tap water filter can be used Note The zero point of the TB450G has been calibrated with tap water filtrated with a 0 1 mm micro filter at the factory before shipment 2 Micro Filters for Zero Calibration Water The following shows the recommended specifications of micro filters 1 micron micro filter Piping connections Rc1 2 Withstanding pressure 780 kPa 8 kgf cm at 40degC Cartridge Material Polypropylene Minimum particle size that can be filtrated 1 micron Others With vent plug 1 3 2 Standard Water for Span Calibration 1 Standard Water for Span Calibration The TB450G uses a formazine solution as the standard liquid Note The span calibration for the TB450G ha
11. 1 Contacts C1 and C2 can be used in two ways for upper and lower limit alarms and for automatic cleaning and calibration These can be selected with FUNCTION E in the lt PROGRAM1 gt mode When shipped from the factory this is set for the upper and lower alarms 2 Either open or closed can be selected when the contact operates Set them with FUNCTIONs C to F in the lt PROGRAM2 gt mode T33802 EPS 3 13 4 4 OPERATION OPERATION 4 1 4 1 1 4 1 2 4 1 3 Preparation for Operation For preparation proceed with the work in turn according to the items in subsections 4 1 1 to 4 1 10 Since the types and number of valves vary with the specifications for sampling see the piping diagrams in Section 2 8 For meaning of the codes see Section 2 3 A CAUTION When the detector is opened for preparation take extreme care not to get the lenses in the detector in two places dirty If they get dirty clean the lenses see Section 7 8 Checking Piping and Wiring Conditions Examine that the piping and wiring have been done properly Supplying Power First confirm that the power supply is of the voltage andfrequency that meet the specifi cations Also check that the cap of the fuse holder in the converter is securely tightened Turn on thepower switch in the converter Then press the MODE key on the converter to go to the lt MAINT gt mode Setting Sampling Specification To enable the au
12. 3 3 5 Analog Output Wiring This is the wiring for transmitting a 1 to 5 V DC or 4 to 20 mA DC output signal corresponding to the output range to a receiving instrument such as a recorder For wiring use a 2 conductor shielded cable of finished OD 6 to 12 mm The cable end treatment procedure and connection procedures on the connecting side to the converter are shown below 1 Strip off about 40 mm of the insulation covering and shield from the cable end and solder a leadwire to the root of the exposed shield Protect the soldered part with wound insulation tape 2 Make the soldered leadwire length almost the same as other conductor lengths and attach crimp terminal lugs conforming to an M4 4 mm screw to the tips of each conductor and this leadwire 3 Connect the cable to the converter terminals and Connect the plus pole conduc tor to the OUTPUT terminal and the minus pole conductor to the OUTPUT terminal Also connect the leadwire of the shield to terminal G Do not ground the shield on the receiving side 3 3 6 Digital Output Wiring This is the wiring for outputting turbidity signals and generated failure details as digital signals through RS232 C For details of specifications and transmission see Section 2 1 Standard Specifications For wiring use a 3 conductor shielded cable of finished OD 6 to 12 mm Limit the cable length up 10 m The cable end treatment procedure and connection
13. 110V AC Motor Operated Valve for Sampling water K9411VE 200 220V AC Motor Operated Valve for Sampling water K9411VF Head Tank With Manual Valve K9411GC Head Tank With Pinch Valve 100 110V AC K9411JA Head Tank With Pinch Valve 200 220V AC K9411JB Mounting Bracket for Head Tank K9411BB IM 12E04A03 02E T26001 EPS 2 SPECIFICATIONS 2 7 2 7 External Dimensions 2 7 1 TB450G NN NN Converter Unit mm 2B pipe 060 5 Pipe mounting bracket optional Wiring inlet port Waterproof glands for OD 6 to 12mm Rack mounting bracket optional 4 6holes Detector 2B pipe 660 5 Inlet for Cleaning water 310 Water sample Inlet 25 i d hose joint Water sample outlet 145 25 i d hose joint material optional 30 Rack mounting material optional 10 3 06 holes F27101 EPS Figure 2 1 External Dimensions of the TB450G L Scattered light Turbidimeter 2 8 IM 12E04A03 02E 2 SPECIFICATIONS 2 7 2 1 micron filter with case Part No K9411UA Unit mm Entrance Re1 2 Cartridge F27201 EPS 2 7 3 Head Tank With Manual operated Valve K9411GC 9171 1 f 9165 zy 207 5 352 5
14. 3 or span calibration sensitivity correction in 5 is displayed IM 12E04A03 02E 6 13 6 14 3 Zero shift Calibration FUNCTION 3 At any turbidity value this is an operation to zero shift a turbidity reading within the permissible range 9 NTU For details on the function see Section 5 3 3 The zero correction factor obtained in this calibration can be displayed and directly changed in FUNCTION B in the lt PROGRAM gt mode The operation procedures are as follows Example of display Select FUNCTION 3 in the lt MAINT gt 000 13 NTU mode p 2 Wait until the display becomes stable and then 000 13 NTU press the ENT key The CAL lamp flashes 3 Press the gt key 00000 NTU The display is now ready for determination of the decimal point position 4 Press the gt key to determine the position of 000 00 NTU decimal point Every time the key is pressed the decimal point moves to the right and when the least significant digit is reached the decimal point then moves to the second digit from the left 5 Press the ENT key 000 00 NTU The second digit from the left flashes and waits for the turbidity setting 6 Select a digit with the gt key and set the 000 22 NTU turbidity value using the A or v key Every timethe gt key is pressed the flashing digit moves to the right and when the least significant digit is reached it moves to th
15. 4 1 4 Feeding Zero Calibration Water essseeeseseeesseeseeeerrsreserrsseerrerenrerenreses 4 2 4 1 5 Adjusting Flow Rate of Feed to Detector sssssesseesresesreeerersesreersrseeress 4 4 4 1 6 Feeding Cleaning Water nirestieneicisiiieisisteis sssri kreisie esrin es 4 5 4 1 7 Setting Output Range oe o orere e ENa E e aE SNESE eS 4 5 41S RUNA esses e ree eene nre Ee EE r EE nE e Epo EEE 4 5 4 1 9 Zero and Span Calibrations ssseeseseeeesseeessseesrsreerrrtsrrrsseersseeresresesrenreees 4 5 4 1 10 Feeding Measured Water and Adjusting Measured Water Flow Rate 4 6 4 2 Opera oee e n E E E R A E A E E EO ES 4 7 4 2 1 Starting Measurements cesireieneisereinieer i E E AEIEeaE ea e ES Y 4 7 4 2 2 Automatic Cleaning Operation eee ce eeeeeeeeeeeeseeseecseeaecaecaeenees 4 8 4 2 3 Automatic Zero calibration Operation eee ee eeceeeeeeeeeeeeeeeneeeee 4 12 5 1 Functions Related to Failure Detection 0 eee eee eeeeseeeeecneenseceeeneenees 5 1 5 2 Functions Related to Analog Output 00 eee ee eeeeeeeeeceeeeeecaeeeeeeesaeenees 5 4 5 2 1 Output Range Selection 2 0 0 0 ce ssesssesesenessesconseeseeeseesnesseessees sensor ssees 5 4 5 2 2 Other Functions Related to Output 00 ce ceeeseceeeeceeeeseeneeeeees 5 6 5 3 Manual Cleaning and Calibration Functions eee eee eeeeeecseeeseeneeeneenees 5 8 5 4 Functions Related to Display weenie a n 5 10 5 5 Functions Related to Contact Output cece ce eeeeceeeeeeeeeeeeeeeneeseeees
16. 7 5 7 6 11 12 Note 13 14 Press the ENT key The converter shows the reference signal voltage and the lamp voltage is fixed at approximately 4 9 V Slowly move the lamp up and down along the holder while measuring the reference signal voltage on the display panel Fix the clamp in the position where the maximum reading of the voltage is displayed within 0 6 to 2 3 V DC Normally the maximum lies somewhere between 70 mV and 140 mV though it does vary more or less depending on the lot in which the plate is manufactured The output level becomes higher as the turbidity setpoint of the calibration plate increases Fasten the clamp at a tightening torque of 0 7 Nem using a screw driver if necessary If the torque is less than that value the lamp may move when the cover is opened or closed It does not matter if the clamp is fastened more tightly using a regular flat blade screwdriver As a general procedure to adjust lamp position bring the pinhole for emitting light into the reference device close to the middle of the light beam This increases the amount of light and thereby raises the voltage Check again that the clamp is securely fastened Attach the cover and tighten the four screws marked C Allow the turbidimeter to warm up for at least one hour Then press the ENT key when the reading stabilizes to update the reference setpoint for lamp control If you change the mode during this procedure by pressing
17. Excute bubble retardant function d No change in analog output Check the range setting and range operation mode Auto range setting on off Remote range setting on off Local range setting 1 2 3 Upper and lower range limit setpoints e Turbidity value drift 2 3 Contamination of the measuring cell If automatic calibration is excuted a dirty zero filter Dim light receiving lens Clean the measuring cell For the model with automatic cleaning shorten the cleaning interval Clean the filter element or for use over a prolonged period replace it with a new one Adjust the temperature so that the difference between the measuring water temperature and the ambient temperature is within the predetermined value 30 C If the lens is dirty clean it f No converter display 1 Blown converter fuse Replace it with the attached fuse required g The MEAS lamp flashes 8 6 1 An upper or lower limit alarm is detected Select FUNCTION 8 and or FUNCTION 9 in the lt PROGRAM1 gt mode and change the setpoint s or select FUNCTION 9 in the lt PROGRAM2 gt mode and reset the function The lamp stops flashing T080201 EPS IM 12E04A03 02E 9 Spare Parts 9 Spare Parts IM 12E04A03 02E Life limited parts are used in this system Recommended period to replace the part is shown in the list The replacing period shown in the list indicate
18. Head Tank With Pinch Valve 200 220V AC K9411JB Mounting Bracket for Head Tank K9411BB IM 12E04A03 02E T26001 EPS 2 SPECIFICATIONS 2 7 9 Spare Parts 9 Spare Parts IM 12E04A03 02E Life limited parts are used in this system Recommended period to replace the part is shown in the list The replacing period shown in the list indicate a recommended period to perform preventive maintenance This does not mean that the part is assured for an accidental failure during the period The recommended period to replace the part is only for reference purposes and it depends on the operating conditions The recommended period to replace the part may be revised according to the actual information from operating sites Spare Parts 33 X25 Black Name Part No Recommend 1 Lamp K9412AK 1 time Half a year 2 1 micron Filter K9008ZD 1 time year Fuse 1A A1109EF 1 time year Fuse 3A A1113EF 1 time year Soft PVC Tube 2m K9411ZF 1 time year T0901 EPS 1 Recommended replace period depends on application condition 2 Please change soon when lamp disconnection Err12 or lamp life error Err25 is appeared 9 1 mer Model TB450G H TER aa ce NTU compliant Surface Scattered Type Turbidity Meter i High Range T Parts List d i
19. It is strongly recommended that a formazine solution ranging from 10 to 100 NTU be used as the standard solution for the span calibration 9 Converter Check Operation FUNCTION 9 This operation checks the operation of the converter by switching the converter input signal from a measured signal to a simulated signal The following is the procedure for this function Example of display 1 Select FUNCTION 9 in the lt MAINT gt gt C CHEC is displayed mode 2 Press the ENT key gt 0050 0 NTU The converter is normal if the turbidity reading and analog output satisfy the follow ing conditions Turbidity reading 50 0 0 5 NTU put 12 00 0 16 mA or 4 to 20 mA output 3 00 0 05 V for 1 to 5V output If the analog output in the maintenance mode is set to hold the analog output is held at 12 mA or 3 V in this operation When the mode or function is switched to another mode or function using the MODE or FUNC key the converter input returns to a measured signal from the simulated input In this case a little time is needed until the reading becomes stable If the lt MEAS gt mode is required wait for one minute or more and then change the mode Note The time required for the reading to stabilize in returning to a measured signal from the simulated input depends on the averaging coefficient preset in FUNCTION 4 in the lt PROGRAM 1 gt mode If the data 30 set on s
20. Power supply voltage V5 V6 0V V4 V6 0 V When shutting SV3 V5 V6 Power supply voltage Check the specification of the motor valve and perform correct wiring 3 3 4 Power and Grounding Wiring Power Wiring This is the wiring to supply power conforming to the frequency and voltage specifica tions to the converter Connect converter terminals L1 and L2 with the power supply Use a two conductor cable having a finished OD of 6 to 12 mm for the power wiring The cable end treatment procedure for the end to be connected to the converter is described in the following 1 Strip off about 80 mm of the cable insulation covering from the end 2 Attach clamp terminal lugs fitted to M4 4 mm screws to the tips of the conductors Grounding Wiring Do the grounding wiring using the grounding terminal at the bottom of the converter case As the grounding terminal is for an M5 5 mm screw connect a grounding conductor whose end is end treated obtaining sufficient continuity and do the ground ing JIS class 3 grounding resistance of 100 OHMS or less Note If grounding cannot be done using the ground terminal of the converter case connect the grounding conductor to terminal G M4 4 mm screw within the converter and ground the conductor on the power supply side In this case use 3 conductor or 2 conductor shielded cables for the power and grounding wiring 3 10 IM 12E04A03 02E 3 INSTALLATION PIPING AND WIRING
21. Select the lt MAINT gt mode Open valve V4 and wash for about 30 seconds for the statuses of each valve during washing see Table 6 15 In order to prevent cleaning water from splash ing wash by passing measuring water or zero water through the valve Close valve V4 and open valve V5 for about 10 seconds to drain water Repeat steps 2 and 3 several times depending on the degree of contamination 5 Finished Close valve V5 This function is available when a cleaning water pipe is connected to the side of measuring cell Cleaning of measuring cell is necessary see Section 7 3 for the details IM 12E04A03 02E 7 MAINTENANCE 7 3 Cleaning of Measuring Cell IM 12E04A03 02E Clean the inside of the detector directly with a brush or the like 1 2 Measuring cell Screw A Select the lt MAINT gt mode Select the draining status for the statuses of each valve during draining see Table 6 15 Loosen screw A under the detector cover and open the cover see Figure 7 1 After the water in the detector is drained off wipe the inside of the detector with a soft brush sponge or the like Be careful not to mar or scratch the inside and not to splash the lenses in the light source and light receiving part with water Open valves V4 and SV2 to supply cleaning water and discharge the dirt with the water Also in this case gradually open valve V4 so as not to splash the lenses in the light sour
22. agree with the desired value Manual start of automatic cleaning 2 Cleaning operation can be started in the lt MAINT gt mode Manual start of automatic calibration 2 Calibration operation can be started in the lt MAINT gt mode Reference sensitivity calibration Reference span calibration carried out with standard solution upon shipment from the factory This sensitivity becomes the reference of the slope display and slope failure assessment Normally this is not used except upon shipment from the factory 9 Lamp control reference value 10 Setting of calibration plate turbidity value The converter lamp voltage is fixed at 4 9 V and the reference signal voltage at that time is stored as the reference The lamp voltage is controlled by this reference value The calibration plate turbidity value is set marked at the rear of the calibration plate PROGRAM1 11 Setting of zero correction factors The zero correction factor obtained in item 3 can be displayed and changed PROGRAM1 12 Setting of sensitivity correction factor The sensitivity correction factor obtained in item 5 can be displayed and changed PROGRAM1 13 Selection of calibration plate standard solution Which span reference is used either the calibration plate or the standard solution for span calibration in item 4 is selected PROGRAM1 T53001 EPS 1
23. formazine solution according to the procedure below 1 Precautions Use clean glass apparatuses and perform accurate measurements For the dilution liquid use distillated water or water filtrated by a 1 micron micro filter Thoroughly mix the 4000 NTU standard formazine solution before sampling it for dilution 2 Procedure for Preparing 20 Liters of Standard Formazine Solution for Calibration 100 NTU standard solution Measure 500 mL of 4000 NTU standard formazine solution and add dilution liquid to make the total quantity to 20 L 50 NTU standard solution Measure 250 mL of 4000 NTU standard formazine solution and add dilution liquid to make the total quantity to 20 L 20 NTU standard solution Measure 100 mL of 4000 NTU standard formazine solution and add dilution liquid to make the total quantity to 20 L 10 NTU standard solution Measure 50 mL of 4000 NTU standard formazine solution and add dilution liquid to make the total quantity to 20 L 7 18 IM 12E04A03 02E 7 MAINTENANCE IM 12E04A03 02E 7 19 8 TROUBLESHOOTING 8 TROUBLESHOOTING If a failure occurs in the converter or the detector the self diagnostic function detects the failure and lights up FAIL lamp to notify of the occurrence of the failure Details on the failure can be known by the error number checking operation When the FAIL lamp is lit first check the error number and then do the checks according to each item descri
24. in Table 3 1 In doing wiring confirm that a contact meeting these conditions is used Table 3 1 On off Identification of Contact Input for Switching Remote Range Po On status identification Off status identification Resistance value contact 200 Q or less 100 kQ or more T33401 EPS The cable end treatment procedure and connection procedures on the converter connec tion side are shown below 1 Strip off about 40 mm of the cable insulation covering from the end and attach suitable terminal lugs fitted to M4 4 mm screws to the tip of each conductor 2 Connect the cable conductors to remote range selection terminals R1 R2 and R3 and range contact output terminals Al A2 A3 and A4 Remote range switching on off contact input is performed between terminals R1 and R2 and between terminals R1 and R3 See figure 3 9 The relationship between the on off contact input and the output range is as shown in Table 3 2 Table 3 2 Contact Input and Output Range R1 Output range R2 RANGE 1 RANGE 2 R3 RANGE 3 T33402 EPS F33401 EPS Figure 3 8 contact output range The range contacts can be output as in Figure 3 9 gt COM RANGE 1 RANGE 2 RANGE 3 F33402 EPS Figure 3 9 Range Contact Output 3 12 IM 12E04A03 02E 3 INSTALLATION PIPING AND WIRING 3 3 8 Contact Output During maintenance failure upper or lower limit alarm during automatic cleaning
25. lt MAINT gt mode 9 Turbidity value is displayed 10 Wait until the reading becomes stable and then press the ENT gt and ENT keys in this order to calibrate the meter 11 Finished IM 12E04A03 02E 7 7 7 6 2 Zero Calibration by Turning Off Light Source If the turbidity to be measured is 200NTU or more zero calibration can be performed by turning OFF the light source The zero point difference between this method and the zero water method is about 1 NTU or less 1 Select FUNCTION 2 in the lt MAINT gt mode gt Turbidity value is displayed 2 The lamp goes out when the ENT key is pressed once 3 Wait one minute or more until the reading becomes stable and then press the gt and ENT keys in this order Now calibration is over 4 Finished 7 8 IM 12E04A03 02E 7 MAINTENANCE 7 7 Span Calibration 7 7 1 Span Calibration Using Calibration Plate In normal maintenance carry out span calibration using the attached calibration plate The calibration plate is calibrated by the standard solution 1 10 Select FUNCTION D in the lt PROGRAMI gt mode and confirm that ON is displayed ON means calibration using the calibration plate ON is set up upon shipment from the factory Select FUNCTION 4 in the lt MAINT gt mode gt Turbidity value is displayed Drain the measuring water in the detector
26. perform the key operations in the following procedure Example of display 1 Select FUNCTION D in the lt PROGRAM 1 gt ON calibration plate gt mode The current set status is displayed 2 Press the gt key to select on off gt OFF standard solution i ON OFF F060601 EPS 3 Press the ENT key to enter the setting OFF The display flashes once 27 Selecting AUX C1 C2 Contact Output FUNCTION E The operating conditions for AUX contact output C1 C2 are selected from the following two e Upper and lower limit alarm contact output setting on e Contact output during automatic cleaning and automatic zero calibration operations setting off The following shows the setting key operations Example of display 1 Select FUNCTION E in the lt PROGRAM gt ON gt mode The current set status is displayed 2 Press the gt key to select on off OFF Z ON OFF E F060601 EPS 3 Press the ENT key to enter the setting OFF The display flashes once IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 28 Setting for Execution of Bubble Retardant Option 1 Select FUNCTION F in the PROGRAMI1 OFF mode The display shows the current setting 2 Press the gt key to select between gt ON Co FO60601 EPS gt ON The indication blinks once 3 Press the ENT key to confirm your selection
27. the span is 20 or more of the ranges upper setpoint limit or 10 NTU whichever is greater Analog Output Signal 4 to 20 mA DC load resistance of up to 550 ohms or 1 to 5 V DC output resistance of 100 ohms or less Digital Output Signal conforms to RS 232C interface Communication Specifications Data Format ASCII Data Length 8 bits Baud Rate 1200 bps Parity No Start Bit 1 bit Stop Bit 2 bits Communication Scheme mono directional transmission only asynchronous Communication Data Measured Turbidity Value converter display data turbidity displayed value are transmitted Data part comprises 6 characters including the sign and decimal point Ex 1 0050 0 Cale Ex 2 001 00 Cal Ex 3 00 50 CRLF Ex 4 _O L_ _ Celp Fora _ _ blank a space code is transmitted IM 12E04A03 02E 2 1 Upper and Lower Limit Alarm Signal continuously transmitted when an upper or lower limit alarm is detected ALARM Cpls Range Output Signal transmitted once when the range is switched Range 1 RANGEI1 CRLF Range 2 RANGE2 Cel Range 3 RANGE3 Cel p Automatic Cleaning Calibration Signal transmitted once at the start and again at the end of automatic cleaning or calibration Note Not transmitted if these are executed manually in the lt MAINT gt mode start CLEANING_START Celp end CLEANING_END Cpls Maintenance Measurement Signal transmitted once when mode i
28. 1 Select FUNCTION 7 in the lt PROGRAM gt 00080 mode 2 Press the gt key 00080 The most significant digit flashes 3 Select a digit with the gt key and set it to the 00090 desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set value 00090 The entire display flashes once In step 4 if the set value is beyond the permissible range 70 to 100 not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 IM 12E04A03 02E 6 29 6 Setting Upper Limit Alarm Value FUNCTION 8 If the upper and lower limit alarm detection function is set to execution FUNC TION 9 in lt PROGRAM2 gt mode when a measured value exceeds this setpoint the MEAS lamp flashes and if AUX C1 C2 contacts are set for upper and lower limit alarms FUNCTION E in lt PROGRAM gt mode the contact output is actuated Alarm hysteresis is 2 of the setpoint The following shows the setting key operations Example of display 1 Select FUNCTION 8 in the lt PROGRAM gt gt 2200 0 NTU mode 2 Press the gt key 2200 0 NTU The most significant digit flashes 3 Select a digit with the gt key and set it to the 1000 0NTU desired value using the A or v ke
29. 12 6 6 Operation in lt PROGRAM gt Mode 000 eee ceeeeceenseceeceeceeeeneeeeeeseees 6 23 6 7 Operation in lt PROGRAM gt Mode eee ee ceeeecseeeeecneceseceeenseeeseeseees 6 46 6 8 Valve Operation seino a a e a EE a e EAEI CIRE 6 49 7 1 Items of Inspection and Maintenance and Their Periods eee eee 7 1 7 2 Washing With Cleaning Water eee ceeeesceeeeeceeeeeeeeneeeeecaeesaeceeaeenees 7 2 7 3 Cleaning of Measuring Cell oo e e a e E E REN 7 3 7 4 Cleaning of Deforming Tank 00 eee cee cee ceeeeeeeeseeeeeeseeeneeseeenecnaeeaeenaes 7 4 7 5 Lamp Replacement 2cc5 s s5cf3 seh scsi sees ses sedsvasienastasnes sopsecdsch estistietuscipsbdsentsens 7 5 7 6 Zero Calibration 2 4 3 5 Gk aah Eg Eo oria e hing biden beeps 7 7 7 6 1 Zero Calibration with Zero Water oe cee ceeeseceeeeeceeceseceeeeeees 7 7 7 6 2 Zero Calibration by Turning Off Light Source oo eee eeeeeeeee 7 8 al Span Calibrations snot Moke h ial aaa in ah a Bia 7 9 7 7 1 Span Calibration Using Calibration Plate eee ceeeeeeeeeeeeeees 7 9 7 1 2 Span Calibration Using Standard Solution eee ete eseereeeees 7 11 78 Cleaning of Lenses wins as chek iin edi EE p EE E E the holes 7 12 7 9 Replacement of Filter for zero Water cceeceeesseesceceeceeeceeeeeeteceseeceees 7 13 7 10 Replacement of FUSES sisuncs bp Sek ots i a s aeeai ess 7 14 FAY Cleaning of Pipp e ei nea di cheese E EE TEE A E E E E 7 14 7 12 Checking Flowrate Water L
30. 20 times 10 to 120 seconds 10 to 120 seconds 10 to 120 seconds 10 to 120 seconds 10 to 120 seconds 10 to 120 seconds 30 to 600 seconds Automatic cleaning period Cleaning calibration ratio 3 Repeated cleanings Cleaning time 1 1 Cleaning time 2 2 Draining time 1 1 1 Draining time 2 2 1 Filling time 2 2 Filling time 1 o ony nor OO N gt Relaxation time 1 For models without automatic zero calibration use this time setting 2 For the models with automatic zero calibration and automatic cleaning use this time setting 3 The time is set for the automatic cleaning period while for the automatic zero calibration period the cleaning calibration ratio which means the number of times automatic cleaning is performed for one automatic zero calibration is set T060701 EPS 6 46 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION The following shows an example of the setting operations for the automatic cleaning period Similar operations apply to the other settings Example of display 1 Select FUNCTION 1 in the lt PROGRAM2 gt gt 0002 0 time mode The current setpoint is displayed 2 Press the gt key 0002 0 time The most significant digit flashes 3 Select a digit with the gt key and set the digit 0004 0 time The flashing digit moves to the desired value The right and when the least using the A or v key significant dig
31. 3 2 Function Switching Pressing the FUNC key switches the function codes The switched function code is displayed in the function code display area In addition the function code contents are different in each mode see Section 6 2 The selectable number of function codes also changes 1 2 one s 9 eee Fr 1 e 9 A eo F For lt MEAS gt For lt MAINT gt For lt PROGRAM 1 gt or lt PROGRAM 2 gt Note If the MODE key is pressed with the function code set to a code other 1 the function code returns to 1 F060302 EPS Figure 6 3 shows the switching sequence of function codes by the FUNC key operation 6 8 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 6 3 3 Numerical Input Numerical input is made with the data set keys Operation of the data set keys becomes effective in the modes other than the lt MEAS gt mode The data set keys include the following four keys a gt Key Digit selection key This is used to select the digits of a value of displayed data in the data display that are to be changed Digits are selected in such a manner that a digit to be changed moves one place to the right from the most significant digit on the left every time this key is pressed and returns to the left end from the right end When the display is on or off in each mode pressing the gt key indicates them alternately Also when t
32. 5 11 3 6 Other FUNCHONS 25 25 205s hoes ies senha teet EEEE EEES EK EEKE EEEE EE OaS ESERE EE E 5 11 5 6 1 Overview of the Option Bubble Retardant oo eee 5 11 5 6 2 Settings for Executing the Bubble Retardant Option 00 000 5 13 PROCEDURES FOR CONVERTER OPERATION ccccsssssssssseseeee O 1 6 1 Components of Operation Panel and Their Functions and Actions 6 1 6 2 Operation Modes and Functions 0 ccc cceesseeeescsscneseeesecsecseesesesseseseseegs 6 3 6 2 1 Functions in lt MEAS gt Mode eee eeeseecee cece cee cnaeeseceseeeeneeeerees 6 4 6 2 2 Functions in lt MAINT gt Mode oun cece cseeeeceseesecneenseeneeeseeeeees 6 5 6 2 3 Functions in lt PROGRAM gt Mode 0 eee ceeeete cee ceseeeeeeteeeeeneeees 6 6 6 2 4 Functions in lt PROGRAM gt Mode uu eect cete cee ceseeeeceseeeeeeeeees 6 7 IM 12E04A03 02E 6 3 Key Operation 2 i025 ssceesesesesecdscsaecsibeessessebsfessessseavtavsedsapsctenssaousshesgeuscdssieseesvaes 6 8 6 3 Mode Switching seisean seneese aiii aie io eE seS 6 8 6 3 2 Function Swithin Se oree e E E SA A ERSS 6 8 6 3 3 Numerical Input ssis sase erae ea aE a aE 6 9 6 3 4 Opening Closing Valves sseesssesseseeeesseeseseesrsessesresrrrrsreerssrsresrerrsreee 6 9 6 4 Operation in lt MEAS gt Mode o oo eee eee eeeeeceseeeseeseeceeceeecaecaeeeseseeeeees 6 10 6 5 Operation in lt MAINT gt Mode oe eee ce ceseeeeceseeeeceeeeeeeeeeeeeeeeeeeeeeas 6
33. 7 14 Remove the piping between the detector and the deforming tank and clean it 1 Select the lt MAINT gt mode 2 Set the meter to drain for the valve statuses in draining see Table 6 15 3 After confirming that the water in the deforming tank is drained off remove the piping between the detector and the deforming tank remove the dirt on the inside wall of the piping with a slender brush or the like and last wash out the inside of the piping with tap water 4 Attach the piping again in the reverse order of removal 5 Finished IM 12E04A03 02E 7 MAINTENANCE 7 12 Checking Flowrate Water Level Check the water level of the measuring cell by letting measuring water or zero water flows 1 Select the lt MAINT gt mode Remove screw A under the detector cover to open the detector see Figure 7 1 Let each valve be set in the measuring status or the zero calibration status see Table 6 15 Confirm that the measuring surface is like a mirror finish and if the surface is rippled adjust the flowrate of the measuring water or zero water Check the situation for dirt inside the detector and if is dirty clean it If cleaning is performed be sure to calibrate zero and span Checking is finished by closing the detector Finish The measuring surface is like a mirror finish F071201 EPS Figure 7 7 Measuring Water Surface 7 13 Operation If Water Supply is Suspended If
34. IM 12E04A03 02E The lamp s service life is more than half a year However it is recommended that it be replaced with a new one after a period of half a year as preventive maintenance Some lamp s life may be within half a year This section describes replacement of the lamp 1 2 Clamp Turn off the power switch Remove the four C screws in the upper part of the detector and remove the cover see Figure 7 2 Disconnect terminals P1 and P2 by removing them from the terminal board and remove the two B screws then remove the lamp holder Loosen the clamp that locks the lamp Replace the lamp In doing this confirm that the boss of the new lamp is placed in the position shown in Figure 7 2 Cover wa screws Terminal P1 and P2 Two B screws Lamp holder Z view of detector Lamp boss SS F070501 EPS Figure 7 2 Lamp Replacement Temporarily fix the clamp by tightening it slightly to allow for later adjustment Clean the lens from above i e the lamp side using an alcohol soaked applica tor Securely fix terminals P1 and P2 on the terminal board and firmly tighten the two screws marked B Turn on the power and wait at least five minutes for the lamp brightness to stabilize 10 Carry out calibration for the setting of a reference voltage for lamp control Select FUNCTION C in the MAINT mode
35. It is therefore not practical to set too large an averaging factor and we needed to find a means of detecting the change in readings solely due to air bubbles or dust particles that would not produce a change on the display or in the output signal 5 11 Notes on Use Notes on Use 5 12 The Bubble Retardant option is effective for regular processes where the change in turbidity is comparatively small it may not be suitable for processes where turbidity changes drastically Even though there is no drastic change in turbidity the turbidity indication may sometimes change like a step pulse If this is the case this option may cause a delay in the turbidity indication or output response When using the option give full consideration to your process conditions and adjust the option s setpoint little by little so that it befits the operating conditions Explanation of operation The Bubble Retardant is used by following procedure 1 Checks the input turbidity signal before averaging 2 Calculates the difference between the current input signal level and the preced ing input signal level 3 Compares the difference to the detection level 4 Performs the normal averaging calculation and updates the turbidity indication and output if the difference is smaller than the detection level 5 Holds the turbidity indication and output for the holding time if the differ ence is greater than the
36. Replace the lamp with the spare lamp T080105 EPS Note If the lamp life alarm occurs turbidity measurement does not immediately become impossible If the lamp life alarm occurs since the lamp voltage is fixed at about 5 4 V turbidity measurement can be continued in this state However since the lamp voltage is not controlled measurement error gradually increases Thus replace the lamp as soon as possible A CAUTION After replacing the lamp perform running in for an hour or more and then carry out lamp control reference value calibration and turbidity span calibration 10 Err26 automatic calibration failure Occurrence Operation and checking procedure 1 Select the lt MAINT gt mode and check the open shut operations by turning valves SV 1 and SV3 on and off Failure section and disposition If the valve s does do not operate properly turn off the power to the converter one time and remove the motor operated valve wiring from the converter connection terminal board Table 8 1 Turn on the power again and check whether the valve driving voltage power voltage appears across the terminals by doing an onloff operation using the SV key Table 8 1 a If the normal driving voltage is not output a failure of the valve driving circuit on the converter analog board is assumed Request checking and or repair of the analog board b If the normal driving voltage is output a failure
37. Reserved Copyright 1999 Yokogawa Electric Corporation 4th Edition Aug 2009 YK
38. aria ai ERE s 2 6 E E A E E A T 2 6 29 VS Pave Parts ESES EEEE E EE EE E E E 2 7 2 0 Sampling Parine e E E ETN pe E AE ERER 2 7 27 External Dimensions oeaiei eE ect EE EE EEE S R S E E 2 8 ZTF TB4S0G H HHNN NN ierre erene a 2 8 2 7 2 1 micron filter with case Part No K9411UA ooo ececteeestreeeeees 2 9 2 7 3 Head Tank With Manual operated Valve K9411GC wee 2 9 2 7 4 Head Tank With Pinch Valve K9411JA K9411JB oe 2 10 2 7 5 Mounting Bracket for Head Tank Part No K9411 BB 2 10 2 8 Example Piping Diagram Recommended systems shown below 2 11 2 8 1 Without Automatic Cleaning and Automatic Zero Calibration 2 11 2 8 2 With Automatic Cleaning without Automatic Zero Calibration 2 11 2 8 3 With Aotomatic Cleaning and Automatic Zero Calibration 2 12 2 9 Internal Wiring Di gr M isisisi tessere istardi sisis nesei tesso T spessi 2 13 3 INSTALLATION PIPING AND WIRING esessessesessossesossossesoososseesossese J L Ji o Msala a eee ee i ta et er Bae 3 1 SASL D nise AE AE tetas essing ope Sees ele inane 3 1 3 1 2 Installation Location as sis c s 5sccectvcssssssssapscsnonestinssescdesiesensssenseavesdipavessnesens 3 1 3 1 3 Installation innnan dich ees e EE Bias NEE SEESE 3 1 32 PIPN e e r E E E A E A A EER 3 4 3 2 1 When Using TB450G Converter and Detector Alone 3 4 3 2 2 When Using TB450G with Sampling System 0 eee eneereeeee 3 6 IM 12E04A03 023E 3 3 1 Wiring bet
39. but this function can reset the error even if the causes are not removed However if the causes of the error still remain when the mode is changed after resetting and moved to each error detection mode that error is again detected The following is the procedure for this function Example of display 1 Select FUNCTION B in the lt MAINT gt gt CL_Er is displayed mode 2 Press the ENT key CL_Er display flashes once and the error is reset For troubleshooting when errors occur see Chapter 8 6 21 12 Reference Lamp Control Value Calibration FUNCTION C This function determines the reference signal of the reference light receiving element when the amount of light from the lamp is controlled Be sure to carry out this calibration after replacing the lamp and then do a span calibration calibration plate For the lamp replacement procedure see Section 7 5 The following is the procedure for this function Example of display 1 Select FUNCTION C in the lt MAINT gt L_CAL is displayed mode 2 Press the ENT key The lamp voltage is fixed at gt 1 4203 V 4 9 V The reference signal is displayed 3 Wait for about 5 minutes or more until the gt 1 4203 V display becomes stable and then press the ENT The entire display flashes key once and the reference value is stored 4 Terminated When step 3 is operated if the displayed reference signal exc
40. changing the hold time 4 Ifthe turbidity reading seems to be abnormal temporarily turn off the option and wait for a while to see how the state changes This is because the primary trends of turbidity readings are often masked if the option is active IM 12E04A03 02E 5 6 2 a Detection Level b Hold Time c Sampling Time IM 12E04A03 02E 5 FUNCTIONS Settings for Executing the Bubble Retardant Option To actuate this option set necessary data in the PROGRAM mode by following the procedure given below Select from the two options i e Enable ON FUNCTION F Set the detection level FUNCTION D Set the hold time FUNCTION E Set the sampling time FUNCTION F The detection level is a reference value used to check whether the difference between the level of a pre averaging turbidity signal and the last acquired signal level is larger or smaller than the value previously set in the converter The detection level is defined as the percent of the upper limit of the analog output range that is cur rently selected The percent setpoint is then converted by the computer to a value equivalent to the turbidity signal level The ratio of the sensitivity correction factor is also calculated automatically The regular indication and output of turbidity are post averaging values Conse quently the general rule for setting a value for this data item the dete
41. during automatic zero calibration Wiring If necessary IM 12E04A03 02E The converter outputs contact signals for failure maintenance and upper and lower limit alarm or automatic cleaning in calibration Use a finished OD 6 to 12 mm cable for this wiring select a 2 3 or 6 conductor cable depending on the number of contact outputs used The contact rating for contact output relays is as shown in Table 3 3 For the instrument to be connected select that which satisfies the conditions in Table 3 3 Table 3 3 Contact Rating for Contact Output Relay DC relay AC relay Maximum permissible contact voltage Maximum permissible contact current Maximum permissible contact power T33801 EPS Connect each conductor of the cable to terminals F1 F2 M1 M2 Cl and C2 respec tively Before connection end treat the cable conductors Strip off the cable insulation covering by about 40 mm and attach crimp terminal lugs conforming to M4 4 mm screws to each conductor Table 3 4 shows the operation of each contact output Table 3 4 Contact Output Operation Contact Operation Closed setting upon shipment from the factory for maintenance other than the lt MEAS gt mode 2 Open when a failure occurs setting upon shipment from the factory 2 Open when the upper or lower alarm is generated at shipment from the factory 2 or Closed during automatic calibration or automatic cleaning 2
42. for the valve statuses when draining see Table 6 15 Loosen screw A under the detector cover and open the detector see Figure 7 3 Set the calibration plate housed in the upper inside part of the converter as shown in Figure 7 3 If the calibration plate is dirty wipe the part of its surface used for light scattering the glossy part in the center of the plate with the attached silicone cloth In doing this take care not to scratch the surface Also do not clean it with a solvent such as alcohol but clean it with a detergent Shut the detector and tighten screw A Wait until the reading becomes stable and press the ENT gt and ENT keys in this order Now calibration is over Open the detector again and remove the calibration plate and then shut the detector and tighten screw A Take care not to let the calibration plate get dirty house it in the converter Finished Put the plate on the measuring cell and slide it to the right until it stops F070701 EPS Figure 7 3 Setting Calibration Plate IM 12E04A03 02E 7 9 lt Cleaning Procedure for the Calibration Plate gt Dust and dirt on the surface of the calibration plate should be cleaned in the following procedure 1 Wiping with the attached cloth or cleaning by washing If there is dust on the surface remove it in a manner of lightly wiping with the attached cloth Do not in this case rub hard on the surface If dust or dirt is
43. is fixed PROGRAM1 8 automatic cleaning or zero calibration 3 Selection of The unit of turbidity indication NTU mg l and degree can PROGRAM1 C turbidity unit be selected indication T54002 EPS 1 Owing to item 3 in Table 5 6 the unit indication can be changed 2 Even if this function is on a negative value is displayed in other than the lt MEAS gt mode 5 10 IM 12E04A03 02E 5 FUNCTIONS 5 5 Functions Related to Contact Output Selection of maintenance contact Open or closed set upon PROGRAM2 output open or close An on or off operation can be selected for every contact output The output AUX Cl C2 is used for either upper and lower limit alarm output or automatic cleaning and calibration output Table 5 7 Functions Related to Contact Output Function Description Contact FUNCTION shipment from the factory Selection of FAIL contact output Open set upon shipment from PROGRAM2 open or close the factory or closed Selection of upper and lower limit Open set upon shipment from PROGRAM2 alarm output open or close the factory or closed Selection of automatic cleaning or Open or closed upon shipment PROGRAM2 zero Calibration output open or close from the factory Selection of C1 and C2 outputs Selection of upper and lower PROGRAM1 limit alarm output or automatic cleaning or calibration output 755001 EPS 5 6 Other Functions Table 5 8 shows other func
44. less FUNCTION 6 By setting on execution in this function the analog output does not fall below 4 mA or 1 V The following describes the setting key operations Example of display 1 Select FUNCTION 6 in the lt PROGRAM gt OFF stop mode The current set status is displayed 2 Press the gt key to select on or off gt ON execution Z ON OFF E F060601 EPS 3 Press the ENT key to enter the setting ON The display flashes once 20 Setting Negative Turbidity Display Hold FUNCTION 7 When on execution is set in this function the turbidity indication does not fall below 0 000 NTU even if the turbidity value becomes negative in the computation However this setting is effective only in the lt MEAS gt mode The following describes the setting key operations Example of display 1 Select FUNCTION 7 in the lt PROGRAMI gt OFF stop mode The current set status is displayed 2 Press the gt key to select on or off gt ON execution Z ON OFF a F060601 EPS 3 Press the ENT key to enter the setting gt ON The display flashes once IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 21 Setting Display hold in Automatic Cleaning and Calibration FUNCTION 8 When ON execution is selected in this function a turbidity value immediately before the operation holds and displays during automatic cleaning a
45. not removed merely by wiping wash the surface letting tap water flow on the surface After cleaning drain off the water and wipe up the remaining water with the attached cloth or tissue In doing this do not rub the surface 2 Cleaning with detergent If dirt is stuck on the surface through contact with your hand or dirt cannot be removed even with wiping as described in 1 clean the plate with a detergent Cleaning should be done in the following procedure 1 Dissolve a suitable quantity of detergent in a certain amount of tap water and immerse the calibration plate in the solution 2 Swirl the calibration plate around in the solution to remove the dirt from the surface 3 If the dirt cannot be removed only by swirling the plate around wipe the surface lightly with tissue that has been dampened in the solution to remove dirt 4 After dirt has been removed thoroughly rinse off the solution using tap water and drain off well the water droplets remaining on the surface 5 Wipe up the remaining water with the attached cloth or tissue In doing this do not rub the surface A CAUTION e Avoid rubbing the surface with any material e For cleaning do not use agents other than a detergent e g a solvent such as ethanol acetone etc e For cleaning also avoid touching the surface with your fingers e If the surface gets scratched a correct turbidity reading cannot be obtained Be sure to exercise care in handling 7 1
46. of solenoid valves based on the sampling specifications basic code Table 6 7 Sampling Specifications MS Code and Use of Solenoid Valves with sampling system with sampling system x Not used and automatic cleaning O Used with sampling system and automatic cleaning and automatic zero c alibration Note SV1 and SV3 denote motor operated valves and SV2 and SV4 solenoid valves T060301 EPS IM 12E04A03 02E 6 9 6 4 Operation in lt MEAS gt Mode Each data item in Table 6 3 is displayed by FUNC key operation In this section the functions are described in the following order 1 Turbidity 2 Lamp voltage 3 Turbidity element detection current 4 Reference element detection voltage 5 Analog output in 6 Analog output in mA 7 Zero point error 8 Slope 1 Turbidity FUNCTION 1 Turbidity is displayed in the range of 10 00 to 2200 NTU The unit that is dis played can be selected from NTU mg l or degree in the lt PROGRAM gt mode and with FUNCTION C 2 Lamp voltage indication FUNCTION 2 The output voltage of the converter to the lamp across terminals P1 and P2 is displayed 3 Turbidity element detection current FUNCTION 3 The signal detected by the turbidity detecting light receiving element in the detector is displayed as the current value converted value 4 Reference element detection voltag
47. output and the operation modes and function numbers for setting Table 5 3 Other Functions Related to Output Function Description FUNCTION 1 Line segment Setting of break points when an analog signal is output approximation with line segment approximation PROGRAM1 output 2 Output hold When maintained other than the lt MEAS gt mode the during function to hold the analog output PROGRAM1 maintenance 3 Output mode Analog output mode non hold hold or preset selection when a failure is when the FAIL lamp is lit PROGRAM1 detected 4 Holding an If a turbidity value becomes smaller than the output range output of 4 mA lower limit the output is held at 4 mA 1 V PROGRAM1 or less 5 Setting of output If preset is selected in function 3 the value set value if a failure here is output PROGRAM1 is detected T52201 EPS 1 Line segment Approximation Output The point where a setpoint of the output range span NTU corresponds to 50 of the output signal 4 to 20 mA or 1 to 5 V span is the break point The setting range is O to 100 Figure 5 2 shows an example of a setting 20 Break point Example of setting Output 42 Output range 0 to 50 NTU signal Output 4 to 20 mA Break point setting 40 20 NTU mA 4 0 10 20 30 40 50 Output range NTU 40 setting F52201 EPS Figure 5 2 Example of Line segment Approximation Output 5 6 IM 12E04A03 02E 5 FUNCTIONS If the
48. output range setpoint is determined to be 50 the output is linear at 0 or 100 the output is as shown in Figure 5 3 respectively 20 20 12 12 Output Output signal signal mA mA 7 L U 4 Li U ower pper ower pper limit Output range NTU limit limit Output range NTU limit In the case of setting at 0 In the case of setting at 100 F52202 EPS Figure 5 3 Output When the Break Point is set at 0 and 100 of the Output Range IM 12E04A03 02E 5 7 Manual Cleaning and Calibration Functions Table 5 4 shows a list of manual cleaning and calibration functions For operation and setting procedures see the procedures for each mode and the functions in Chapter 6 Table 5 4 Manual Cleaning and Calibration Functions Function Zero calibration zero water Description Zero point calibration using zero water Mode FUNCTION Zero calibration lamp OFF 1 Zero shift calibration 3 Zero point calibration with the lamp turned off When the measurement is over 200 NTU turbidity zero calibration can be made at Ramp off A function to make the zero point agree with the desired value Span calibration calibration plate standard solution Span calibration using the calibration plate and standard solution The calibration plate and standard solution should be selected according to function Span calibration sensitivity correction 3 A function to make the point at the upper end of the span
49. piping diagram shown in Section 2 8 when designing and manufacturing the sampling system Be sure to at least provide the head tank filters for zero calibra tion water and valves V1 V2 V3 V4 and V5 shown in this diagram When using the automatic cleaning function and automatic zero calibration function of the TB450G refer to Sections 2 8 2 and 2 8 3 and in addition provide the pinch motor and solenoid operated valves shown as SV1 SV2 SV3 and SV4 The following describes the precautions for each pipe 1 Piping for Measured Water Piping for measured water denotes piping for feeding the measured water to the detector Provide a head tank that also works as a deaeration tank constant level tank and connect the measured water supply to the head tank For installation and piping see Item 1 in Section 3 2 1 For the pipe leading the measured water to the head tank a hard PVC pipe VP16 or higher or soft PVC tube I D 15 mm or larger is recom mended For cleaning of the detector and head tank refer to Section 2 8 1 and provide drain piping with the hand operated valve V5 for the head tank A hard PVC pipe VP25 or higher or soft PVC tube I D 25 mm or larger is recommended for the drain pipe and a ball valve is recommended for the hand operated valve V5 in the diagram When using the automatic cleaning function of the TB450G refer to Sections 2 8 2 and 2 8 3 and provide the pinch valve SV1 for the drain pipe below the
50. right to the value LSD and then returns to the MSD 4 Press the ENT key to confirm your setting 00050 The whole indication blinks once 13 Setting of Sampling Time for Bubble Retardant FUNCTION F 1 Select FUNCTION F in the PROGRAM 00030 mode example of reading 2 Press the gt key 00030 3 Using the gt key select a digit and then press 00030 the A and v keys to set the digit to the desired Blinking shifts right to the value LSD and then returns to the MSD 4 Press the ENT key to confirm your setting 00030 The whole indication blinks once IM 12E04A03 02E 6 35 14 Auto range Selection FUNCTION 1 This function selects execution stop of the auto range switching function The auto range function automatically selects either output range 1 output range 2 or output range 3 depending on the measured values For details on the function see Subsection 5 2 1 In addition the contact outputs Al A2 A3 and A4 operate corresponding to the selected output range Note Confirm that the range 1 2 or 3 setting satisfies the conditions in Section 6 6 1 If the conditions are not satisfied auto range switching does not take place The following describes the setting key operations Example of display 1 Select FUNCTION 1 in the lt PROGRAM1 gt OFF stop mode The current set status is displayed 2 Press the gt key to select on off
51. shift calibration zero correction in 3 or span calibration sensitivity correction in 5 is displayed IM 12E04A03 02E 6 15 6 16 b Span calibration with standard solution Example of display Select FUNCTION 4 in the lt MAINT gt gt 0020 5 NTU mode e 2 Wait until the display becomes stable and then 0020 5 NTU press the ENT key The CAL lamp flashes 3 Press the gt key 00000 NTU The display is now ready for determination of the decimal point position 4 Press the gt key to determine the position of the 0000 0 NTU decimal point Every time the key is pressed the decimal point moves to the right and when the least significant digit is reached it moves to the second digit from the left 5 Press the ENT key gt 0000 0 NTU The second digit from the left flashes and waits for the turbidity setting 6 Select a digit with the gt key and set the turbid 0020 0 NTU ity value of the standard solution using the A or v key Every time the gt key is pressed the flashing digit moves to the right and when the least significant digit is reached it moves to the second digit from the left 7 Press the ENT key to terminate calibration 0020 0 NTU The entire display flashes once and the CAL lamp goes out If the turbidity value set in operation 7 exceeds the permissible setting range 0 to 2200 NTU not is displayed In this case the FAIL l
52. the FUNC key for example the updating will not come to a normal end If the mode needs to be changed press the ENT key prior to the change When you have finished updating the reference setpoint for lamp control follow steps 11 and 12 discussed earlier Next wait at least 30 minutes to allow the turbidimeter to stabilize and then press the ENT key Lamp replacement is now complete Wait at least 10 minutes to allow the lamp voltage to stabilize to approximately 4 9 V and then carry out zero calibration described in Section 7 6 Zero Calibra tion and span calibration using the calibration plate described in 7 7 Span Calibration IM 12E04A03 02E 7 MAINTENANCE 7 6 Zero Calibration 7 6 1 Zero Calibration with Zero Water Zero calibration using zero water is described in this subsection 1 For specification with automatic cleaning and automatic zero calibration See 2 8 3 Carry out zero calibration using the manual start functions of automatic zero calibration 1 Select FUNCTION 7 in the lt MAINT gt mode gt A CAL is displayed 2 Press the ENT key Automatic zero calibration starts and the CAL lamp flashes 3 Predetermined calibration operations are performed and terminated 2 For specification with automatic cleaning but without automatic zero calibration See 2 8 2 Carry out zero calibration by allowing zero water to flow for about 30 minutes after perf
53. the internal timer when the sampling system is added If off stop is selected in the automatic cleaning function the manual start operation in FUNCTION 6 in the lt MAINT gt mode can be executed As this function is set to on execution upon shipment from the factory if it becomes necessary to select off stop perform the key operations in the following procedure Example of display 1 Select FUNCTION A in the lt PROGRAMI1 ON execution gt mode The current set status is displayed 2 Press the gt key to select on or off OFF stop zx ON OFF j F060601 EPS 3 Press the ENT key to enter the setting gt OFF The display flashes once 24 Selecting Execution Stop of Automatic Calibration Function FUNCTION B 9 This function selects execution stop of the automatic calibration function started with the internal timer when the _ _ 3 sampling system is tuned If off stop is selected in the automatic calibration function the manual start operation in FUNC TION 7 in the lt MAINT gt mode can be executed As this function is set to on execution upon shipment from the factory if it becomes necessary to select off stop perform the key operations in the following procedure Example of display 1 Select FUNCTION B in the lt PROGRAMI ON execution gt mode The current set status is displayed 2 Press the gt key to select on or off OF
54. the supply of measuring water and tap water cleaning water and zero water is suspended normal measurements cannot be carried out The instrument cannot detect a suspension of measuring water and tap water cleaning water and zero water Thus check the water supply status regularly An automatic calibration failure Err26 or an upper or lower limit alarm may be detected during an interruption in the supply of measuring water and tap water cleaning water and zero water If such a failure is detected check the supply of measuring water and or tap water IM 12E04A03 02E 7 15 7 14 Operation During Power Failure and at Power Recov 7 16 ery Setting data are stored in the EEPROM non volatile memory Accordingly data are not lost in a power failure In addition the current operation mode and function number are saved in the RAM and backed up for about 30 to 60 minutes Hence if the power supply to the converter is temporarily suspended the operation mode and function number status immediately before the power is turned off are retained unchanged as long as the re supply of current is performed within the backup period However operations in the way of execution cannot be recovered and the initial status is restored in that function number If the backup time elapses the status of FUNCTION 1 turbidity display in the lt MEAS gt mode is set when the power is recovered If the power fa
55. the turbid 0100 0 NTU ity value of the standard solution using the A or v key Every time the gt key is pressed the flashing digit moves to the right and when the least significant digit is reached it moves to the second digit from the left 7 Press the ENT key to terminate calibration gt 0100 0 NTU The entire display flashes once and the CAL lamp goes out If the turbidity value set in step 7 exceeds the permissible setting range 0 to 2200 NTU not is displayed In this case the FAIL lamp is not lit and a FAIL contact is not output Reset the error message by pressing the ENT key and continue operation from step 2 Also in reference sensitivity calibration the permissible sensitivity range is not specifically determined in calibration If calibration of this function is performed the slope display in the lt MEAS gt mode becomes 100 0 In any stage of reference sensitivity calibration operation pressing the MODE key or FUNC key allows switching to another mode or function The calibration computation is not performed unless operation 7 is carried out Note1 At this calibration the turbidity not multiplied by the correction factor from the zero shift calibration zero correction in 3 or span calibration sensitiv ity correction in 5 is displayed 6 19 6 20 Note 2 Conduct the reference sensitivity calibration of this meter in a complete range of linearity from 0 to 200 NTU
56. time 1 1 10 to 120 seconds 00030 Setting of cleaning time 2 2 10 to 120 seconds 00030 Setting of drain time 1 1 10 to 120 seconds 00010 Setting of drain time 2 2 10 to 120 seconds 00010 Setting of filling time 1 1 10 to 120 seconds 00100 Setting of filling time 2 2 10 to 120 seconds 00100 Setting of relaxation time 30 to 600 seconds 00150 QOWDPFrFOANDA OA AOON etting of maintenance contact output _1 __2 _ _2 Closed E Open in operation operation Closed in operation Setting of FAIL contact output operation 1 __1 Open Open in operation Closed in operation Setting of upper and lower limit alarm 1 __1 Open contact output operation Setting of operation of contact output A __2 Closed during automatic cleaning and zero calibration Open in operation Closed in operation Open in operation Closed in operation N N N N Selection of execution stopping of ON OFF Execution turbidity range over detection function Stop Selection of execution stopping of ON OFF Execution disconnected lamp detection function Stop Selection of execution stopping of lamp ON OFF Execution voltage failure detection function Stop Selection of execution stopping of A D ON OFF Execution circuit failure detection function Stop Selection of execution stopping of ON OFF Execution failure in memory comparison detection Stop function Selection of execution stopping of ON OFF Execution reference vo
57. to the pinch valve SV 1 drain valve and solenoid operated valve SV2 cleaning water valve must be performed Remove the drip proof cap plugs capped to the cable glands of the con verter and perform the wiring For the wiring to the pinch valve SV1 use a 2 core cable of O D 6 to 12 mm For the wiring to the solenoid operated valve SV2 use a 2 core cable of O D 6 5 to 7 mm Note Do not remove the drip proof plugs from cable glands that are not used IM 12E04A03 02E 3 9 3 3 3 Wiring between Converter and Valves SV1 2 3 4 when Using Automatic Clean ing Function and Automatic Zero Calibration Function When using the automatic cleaning function the wiring from the converter to the following valves must be performed with the respective cables Pinch valve SV1 drain valve with a 2 core cable of O D 6 to 12 mm Solenoid operated valve SV2 cleaning water valve with a 2 core cable of O D 6 5 to 7 mm Motor operated valve SV3 measured water valve with a 3 core cable of O D 6 5 to 7 mm Solenoid operated valve SV4 zero calibration water valve with a 2 core cable of O D 6 5 to 7 mm Remove the drip proof cap plugs capped to the cable glands of the converter and perform the wiring For the wiring to motor valve SV3 be careful with the connections to the converter terminals V4 open V5 shut and V6 common The voltages output from these terminals are as follows When opening SV3 V4 V6
58. 0 IM 12E04A03 02E 7 MAINTENANCE 7 7 2 Span Calibration Using Standard Solution IM 12E04A03 02E Span calibration is carried out normally with the calibration plate However if the standard solution is to be used do it in the following procedure 1 2 Prepare 10 liters or more of the standard solutions see Subsection 7 15 Select FUNCTION D in the lt PROGRAM1 gt mode and change the setting to OFF OFF means calibration with the standard solution ON is set upon shipment from the factory Select FUNCTION 4 in the lt MAINT gt mode gt Turbidity value is displayed Stop supplying the measuring water and once drain the measuring water into the detector see Table 6 15 Drain several times using zero water and remove the dirt on the detector and deforming tank Finally stop the zero water and drain off the detector and the deforming tank so that no water remains in them Connect the standard solution tank to the measuring water feed inlet and supply the standard solution at 2 l min using a pump Supply the standard solution agitating it with a magnetic stirrer When the standard solution begins to overflow the measuring cell stop supplying the standard solution by turning off the pump and drain it off by opening the drain valve Then close the drain valve and again supply the standard solution Allow the standard solution to
59. 1 The difference in the zero point between the procedures using zero water and the lamp being off is approximately 1 NTU or less 2 For the automatic cleaning operation in the lt MEAS gt mode see subsection 4 2 2 For the automatic calibration operation in the lt MEAS gt mode see subsection 4 2 3 IM 12E04A03 02E 5 FUNCTIONS 3 Normal zero and span calibration is carried out using items 1 or 2 and 4 of Table 5 4 taking the standard solution as the reference equation 5 1 However if the indications are to agree with the arbitrary values using a solution other than the standard solution as the reference calibration with item 3 and 5 of Table 5 4 is carried out In this case the zero correction factor and sensitivity correction factor is used separately from the zero and spans calibration coefficients for calibration referencing to the standard solution see equation 5 2 TL S V A eis Eq 5 1 T2 K T1 B Eq 5 2 where T1 Turbidity value using standard solution as the reference S Span calibration coefficient referencing to standard solution This is calculated when calibrating item 4 in Table 5 4 and the ratio of the span calibration coefficient S0 calculated by reference sensitivity calibration in item 8 in Table 5 4 normally implemented upon shipment from the factory to this coefficient SO S is displayed as the slope in item 8 The permissible range for item 4 in Ta
60. 16 1 micron filter V4 Drain Water VP40 F28201 EPS Figure 2 6 IM 12E04A03 02E 2 8 3 With Aotomatic Cleaning and Automatic Zero Calibration aL CELL CELL Detector HT Defoaming Tank F Zero turbidity filter SV1 SV3 Motor operated valves SV2 SV4_ Solenoid valves V1 to V4 Hand Operaled Valve SV3 Measuring Water VP16 gt lt Svi sv2 V1 lt Tap Water VP16 gt q DI SV4 1 micron filter A o Drain VP40 Figure 2 7 F28301 EPS 2 12 IM 12E04A03 02E 2 SPECIFICATIONS 2 9 Internal Wiring Diagram Figure 2 8 shows the internal wiring diagram of the turbidimeter with a sampling system For external wiring see Section 3 3 A dedicated cable is shipped connected to the detector Detector Dedicated cable Converter Valves 1 Ost O O vt svi Drain S2 e 9 Pinch valve vt V3 C C v3 eae Seen 7 Measuring water O AG V5 L S Motor operated Reference ve PLN idi OPi ni es C P2 V8 Q Cleaning Water 2 Tap Water G L1 L2 V10 O 2 E O O Solenoid valve Solenoid valve 1 Valve connections vary with the specifications as shown below F29001 EPS Diagram of Configuration NE Recommended Piping Valves Used Only converter and detector None With sampling system See Section 2 8 1 None With sampling system and automatic cleanin
61. 2E 2 SPECIFICATIONS Automatic Cleaning Function Water jet cleaning system cleaning time and cleaning period can be freely set for the model with automatic cleaning Automatic Zero Calibration Function Zero point calibration using the zero calibration water for the system with auto matic cleaning zero calibration Failure Detection Function Turbidity overrange lamp disconnection abnormal lamp voltage AD circuit failure Memory failure and CPU failure Check Functions Manual Calibration Zero Calibration Span Calibration Other Functions Materials Detector Piping Mounting Frame Converter Coating Finish Converter Mounting Frame Converter operation check Using zero calibration water or light source off zeroing op tional Calibration plate Line segment approximation output upper and lower limit alarm and output average coefficient setting Black modified polyphenylene ether PPE wetted part Rigid polyvinyl chloride PVC polyethylene and polypropylene all used for wetted parts Carbon steel plates or stainless steel to be specified Aluminum alloys casting Polyurethane resin baked coating finish Color Munsell 0 6GY3 1 2 0 and Munsell 2 5Y8 4 1 2 Polyurethane resin baked coating finish Color Munsell 0 6GY3 1 2 0 Ambient Temperature 5 to 50 degC However if this is the possibility of the measur Ambient Humidity Storage Temperature M
62. 2E 6 11 6 5 Operation in lt MAINT gt Mode This section describes key operations by specifying the functions in the lt MAINT gt mode and describes the key operations in the following order 6 12 1 2 3 4 5 6 7 8 9 Zero calibration with zero water Zero calibration with lamp turned off Zero shift calibration Zero point correction Span calibration with standard solution or calibration plate Span calibration sensitivity correction Manual start of automatic cleaning Manual start of automatic calibration Reference sensitivity calibration Converter check operation 10 Error code display 11 Error resetting 12 Reference lamp control value calibration 13 Version number display 14 Password entry to switch to the adjustment mode 1 Zero Calibration with zero water FUNCTION 1 The zero calibration operation using zero water For the valve operating proce dures see Section 7 6 The following is a description of the key operations Example of display Select FUNCTION 1 in the lt MAINT gt 000 04 NTU mode 2 Press the ENT key after the display becomes gt The CAL lamp begins to stable flash 3 Press the gt key 000 00 NTU is displayed 4 Press the ENT key to terminate calibration 000 00 NTU The entire display flashes once and the CAL lamp goes out In addition at operation
63. 4 the measured signal at the zero point is checked and if the permissible range 10 to 10 mV is exceeded Err21 zero calibration overrange is displayed see Section 5 3 3 In this case the FAIL lamp is not lit and a FAIL contact is not output An error message can be reset by pressing the ENT key and the display returns to the turbidity indication Wait until the display becomes stable and then begin from step 2 again At any stage of zero calibration operation pressing the MODE key or FUNC key allows switching to another mode or function Calibration computation is not performed unless the operation of 4 is carried out Note At this calibration the turbidity not multiplied by the correction factor from the zero shift calibration zero correction in 3 or span calibration sensitivity correction in 5 is displayed IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 2 Zero Calibration with lamp turned off FUNCTION 2 The zero calibration operation is done by automatically turning off the lamp Only in a measured turbidity exceeding 200 NTU can zero calibration be performed simply in the following operations A turbidity reading with the lamp turned off reads a value 1 NTU smaller than a reading using zero water Example of display 1 Select FUNCTION 2 in the lt MAINT gt 002 00 NTU mode At this time the lamp is still lit 2 Press the ENT key gt 000 50 N
64. 5 5 can be selectively displayed In addi tion Table 5 6 shows the functions related to turbidity display Table 5 5 Functions Related to Display 1 Turbidity display 4 Description Turbidity is displayed FUNCTION 2 Lamp voltage display The lamp voltage in the converter is displayed 1 3 Measured signal current display The measured value by the receiving element that measures scattered light is displayed in the current value 4 Reference signal voltage display The signal of the receiving element that controls the lamp light quantity is displayed in the voltage value 5 Analog output display The analog output is displayed after being converted into FS 6 Analog outputmA display The analog output is displayed after being converted into 4 to 20 mA 7 Zero error display i The measured signal in zero calibration does not become 0 mV exactly This error mV is displayed after being converted to turbidity 8 Slope display Sensitivity at the latest span calibration to the sensitivity at reference sensitivity calibration is displayed in T54001 EPS Table 5 6 Functions Related to Turbidity Display Function Description Mode FUNCTION 1 Negative If the value of the turbidity is negative the turbidity is fixed PROGRAM1 7 turbidity display at 0 00 NTU hold 2 2 Display hold in The display in the automatic cleaning or zero calibration
65. Bracket for Pipe mounting AE Eegen Mounting Bracket for Rack mounting SOT Skies With Stainless Steel Tag plate Note 1 Provide head tank defoaming tank so that the flow rate of the water sample reaches the specified flow 1 5 to 2 l min T23001 EPS 2 4 Accessories Name Q ty Remark Calibration Disk 1 In converter Silicon Cloth 1 Lamp 2 Spare Fuse 4each 1A 3A Spare Soft PVC Tube 1 set For detector piping 933 X 25 Black 1m X 2 Clamp 2 For detector piping 724001 EPS 2 6 IM 12E04A03 02E 2 5 Spare Parts 33 Xo25 Black Name Part No Recommend 1 Change Lamp K9412AK 1 time half a year 2 1 micron Filter K9008ZD 1 time year Fuse 1A A1109EF 1 time year Fuse 3A A1094EF 1 time year Soft PVC Tube 2m K9411ZF 1 time year 1 Recommended replace period depends on application condition 2 Please change soon when lamp disconnection Err12 or lamp life error Err25 is appeared 2 6 Sampling Parts T25001 EPS Name Part No Pinch Valve for Drain water 100 110V AC K9411JG Pinch Valve for Drain water 200 220V AC K9411JH Zero water 220V AC Solenoid Valve for Cleaning water or A1113MV Zero water 100V AC Solenoid Valve for Cleaning water or A1115MV Zero water 110V AC Solenoid Valve for Cleaning water or A1114MV Zero water 200V AC Solenoid Valve for Cleaning water or A1116MV 100
66. E This system is configured by assembling an automatic cleaning and zero calibration systems to the configuration in Section 1 1 2 above The recommended piping is shown in the diagram in Section 2 8 3 For automatic cleaning the solenoid operated valve SV2 is installed in the cleaning water pipe as a cleaning water valve and the pinch valve SV1 below the head tank as a drain valve For automatic zero calibration the solenoid operated valve SV4 is installed in the zero calibration water pipe as a zero calibration water valve and the motor valve SV3 in the measured water pipe as a measured water valve These valves can be controlled by the automatic cleaning sequence and automatic calibration sequence set in the converter to perform cleaning of the detector s measuring cell and zero calibrations automatically 1 3 1 2 Operating Principle 1 4 The operating principle of the Model TB450G NTU comliant surface scattered Type turbidimeter employs a method of measuring the amount of scattering light on the surface of water The measuring system comprises a detector and a converter This section describes the meter configuration and operating principle The detector is composed of a measuring cell and a detecting section Measuring water that flows into the measuring cell from the bottom of the cell overflows at the top of the cell Meanwhile a tungsten lamp closed inside the detector emits light onto the surface of the measuring water thro
67. F stop C ON OFF E F060601 EPS 3 Press the ENT key to enter the setting OFF The display flashes once 6 42 IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 25 Selecting Designation of Units FUNCTION C This function can set the unit of turbidity to be displayed on the converter at either NTU degree or FTU If the unit designation is to be changed perform it using the following key opera tions Example of display 1 Select FUNCTION C in the lt PROGRAMI gt _ NTU gt mode The current set code is displayed 2 Press the gt key to select the setting code gt __ 2 mg l em eee s2 tae a NTU mg 2 degree F060605 EPS 3 Press the ENT key to enter the setting gt 2 The display flashes once The unit selected in step 3 is lit in the unit display area on the right of the data display when the turbidity is displayed Figure 6 4 Turbidity reading MEAS MAINT PROGRAM 1 PROGRAM 2 FO60606 EPS Figure 6 4 Unit Designation 6 43 6 44 26 Selecting Calibration Plate Standard Solution FUNCTION D In the span calibration operation for FUNCTION 4 in the lt MAINT gt mode this function sets either the calibration plate or the standard solution for span calibration Upon shipment from the factory on calibration plate is set If off standard solution is to be selected
68. FUNCTION 9 These functions can select execution stop of part of the failure detection functions Table 6 14 shows the detected failures and their operation functions Table 6 14 Detected Failures and Their Operation Functions Setting upon Detected failure FUNCTION Error code shipment from the factory Err11 Err12 Err13 Err14 Err15 Err18 Err25 Err26 MEAS lamp flashes Turbidity overrange Lamp disconnection Lamp voltage failure A D circuit failure Memory comparison failure Reference voltage failure Lamp service life Automatic calibration failure oOMAnonr YOY NY Upper or lower limit alarm T060703 EPS For details on each failure detection function see Section 5 1 The following are the setting key operations for an example of turbidity overranging The same procedure applies to the other settings Example of display 1 Select FUNCTION 1 to FUNCTION 9 in ON execution the lt PROGRAM2 gt mode 2 Press the gt key to select on off OFF stop Z ON OFF a F060601 EPS 3 Press the ENT key to enter the setting gt ON The display flashes once Note Normally it is not necessary to operate these IM 12E04A03 02E 6 8 Valve Operation 6 PROCEDURES FOR CONVERTER OPERATION Table 6 15 shows the valve on off statuses in measurement draining or zero calibration for each sampling specification However for operations in automatic cleaning
69. Instruction EXA TB Manual Model TB450G H NTU compliant Surface Scattered Type Turbidity Meter High Range Type IM 12E04A03 02E vigilant YOKOGAWA IM 12E04A03 02E Yokogawa Electric Corporation 1st Edition Introduction This instruction manual describes on the specifications principle of measurement and maintenance for Model TB450G H High range type NTU compliant Surface Scattered Type Turbidity Meter For the Model TB450G H high range type refer to other instruction manual IM 12E04A03 01E Notation Symbol Marks In this manual the following symbols are used to represent the following contents J Warning Description of precautions to take against dangers such as electric shock that can cause fatal or serious injury to the operator Important Description of precautions to take against damaging software or hardware that could cause a failure in the system Note vv Description of items to be noted in order to understand the operation and features of the equipment raidan Additional information S e gt p An item or a page to be referred to IM 12E04A03 02E 1ST Edition Apr 2000 YK All Rights Reserved Copyright 2000 Yokogawa Electric Corporation IM 12E04A03 023E NOTATION Notice about this manual book e Pass this book to the final user e Read this book thoroughly to understand the contents before operating the equipment e This book is to describe the functi
70. ON execution m ON OFF a F060601 EPS 3 Press the ENT key to enter the setting gt ON The display flashes once 6 36 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 15 Remote Range Selection FUNCTION 2 This function sets execution stop of the remote range switching function However if the auto range switching function item 11 above is selected execution this setting is invalid If execution of this function is set either output range 1 output range 2 or output range 3 is selected by a contact input R1 R2 or R3 Contact outputs A1 A2 A3 and A4 operate by the selected output range Table 6 10 shows the remote range switching operation The following is the procedure for this function Table 6 10 Remote Range Switching Operation Contact input Pitre mor md tange ange contaor owtpu Output range 1 A1 to A2 Closed Output range 2 A1 to A3 Closed Closed Output range 3 A1 to A4 Closed T060602 EPS The following is the setting key operations Example of display 1 Select FUNCTION 2 in the lt PROGRAMI1 gt gt OFF stop mode The current set status is displayed 2 Press the gt key to select on off ON execution Z ON OFF E F060601 EPS 3 Press the ENT key to enter the setting ON The display flashes once IM 12E04A03 02E 6 37 16 Local Range Setting FUNCTION 3 If automatic range switching and remote range s
71. Pinch Valve A1113MV for 100 V AC 5 K9411JA 1 Tank Assembly with Pintch Valve A1114MV for 200 V AC AC100 110V A1115MV for 110 V AC K9411JB Tank Assembly with Pinch Valve A1116MV for 220 V AC AC 200 220V 6 K9411JC 1 Head Tank sv1 1 Valve K9411JG for 100 110 V AC K9411JH for 200 220 V AC Sv2 1 Solenoid Valve A1113MV for 100 V AC A1114MV for 200 V AC A1115MV for 110 V AC A1116MV for 220 V AC YOKOGAWA All Rights Reserved Copyright 2000 Yokogawa Electric Corporation CMPL 12E04A03 02E 1st Edition Apr 2000 YK Yokogawa Electric Corporation Item Part No 1 E K9411ZG K9411ZH K9412EA K9412EB K9412EC K9412ED K9412GA K9412GB K9412GC K9412GD CMPL 12E04A03 02E Qty 1 K9412EL CONVERTER GO Description Item Part No Qty Mounting hardware 3 A1109EF 1 Option Code in case of P 4 A1094EF 1 Option Code in case of R Converter for TB450G L 4 1 and 3 for TB450G L 5 1 and 3 for TB450G L 4 6 and 7 for TB450G L 5 6 and 7 for TB450G H 4 1 and 3 for TB450G H 5 1 and 3 for TB450G H 4 6 and 7 for TB450G H 5 6 and 7 Description All Rights Reserved Copyright 2000 Yokogawa Electr
72. Press the gt key 1 0000 The most significant digit flashes 3 Select a digit with the gt key and set it to the 1 2000 desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set value 1 2000 The entire display flashes once In step 4 if the set value is beyond the permissible range 0 25 to 4 not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 6 34 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 11 Setting Detection Level for Bubble Retardant FUNCTION D 1 Select FUNCTION D in the PROGRAM1 00010 mode example of reading 2 Press the gt key 00010 The MSD blinks 3 Using the gt key select a digit and then press the 00020 A and v keys to set the digit to the desired Blinking shifts right to the value LSD and then returns to the MSD 4 Press the ENT key to confirm your setting 00020 The whole indication blinks once 12 Setting of Hold Time for Bubble Retardant FUNCTION E 1 Select FUNCTION E in the PROGRAM1 00030 mode example of reading 2 Press the gt key 00030 The MSD blinks 3 Using the gt key select a digit and then press 00050 the A and v keys to set the digit to the desired Blinking shifts
73. Response Time Averaging coefficient Standard for 90 response time Approx 8 sec Approx 15 sec Approx 22 sec Approx 30 sec Approx 38 sec Approx 75 sec TO60601 EPS The following is the procedure for the setting operation Example of display 1 Select FUNCTION 4 in the lt PROGRAM gt gt 00030 mode 2 Press the gt key 00030 The most significant digit flashes 3 Select a digit using the gt key and set it to the 00040 desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the value 00040 The entire display flashes once In addition in step 4 if the set value is beyond the permissible range 1 to 255 not is displayed Reset the message by pressing the gt key and repeat operations from step 2 Note If calibration is performed using the calibration plate in FUNCTION 4 in the lt MAINT gt mode the averaging coefficient automatically changes to 10 regardless of this setting IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 3 Setting Output Value If an Error Occurs If preset _ _ 3 is selected in the output mode setting FUNCTION 5 in the lt PROGRAM 1 gt mode when an error occurs the analog output when the error occurs is fixed a
74. TU The lamp goes out and the displayed value The CAL lamp becomes smaller flashes 3 Wait one minute or more and after the display 000 00 NTU is becomes stable and press the gt key displayed 4 Press the ENT key to calibrate 000 00 NTU The entire display flashes once and then the CAL lamp goes out In addition at operation 4 the zero calibration range is checked and if the permis sible range 10 to 10 mV is exceeded Err 21 zero calibration overrange is displayed see Section 5 3 3 In this case the FAIL lamp is not lit and a FAIL contact is not output The error message can be reset by pressing the ENT key and the display returns to the turbidity indication Wait until the display becomes stable and then begin from step 2 again In any stage of zero calibration operation pressing the MODE key or FUNC key allows switching to another mode or function Calibration computation is not performed unless operation of 4 is carried out Also since the lamp voltage returns to the control voltage when the turbidimeter resets from the function for calibration with the lamp turned off a little time is necessary until the turbidity reading becomes stable When the mode is to be changed to the lt MEAS gt mode change the mode after waiting for five minutes or more Note At this calibration the turbidity not multiplied by the correction factor from the zero shift calibration zero correction in
75. U standard formazine solution The following shows how to prepare the 4000 NTU standard formazine solution and reference formazine solution for span calibrations 7 15 1 Preparing 400 NTU Standard Formazine Solution 1 Reagents Used Hydrazinesulfate NH H SO Hexamethylenetetramine CH N 2 Apparatuses Used Two 1 L measuring beakers One 2 L measuring flask One balance 3 Preparation Procedure Measure 1 000 0 01 g of hydrazinesulfate using the balance and pour in approxi mately 700 ml of distilled water to dissolve it to make liquid A Measure 100 00 0 01 g of hexamethylenetetramine using the balance and pour in approximately 700 ml of distilled water to dissolve it to make liquid B Confirm that the substances in liquids A and B are completely dissolved After that mix them together in a two liter measuring flask and add distilled water to make the total solution equal to 2 liters Leave this solution untouched for 48 hours at 25degC 3degC By diluting this 4000 NTU standard formazine solution with distilled water you can obtain a standard formazine solution with the required turbidity Note that a standard 4000 NTU formazine solution is valid for use for one month You need to record the date of its preparation IM 12E04A03 02E 7 17 7 15 2 Preparing Standard Formazine Solution for Calibration To prepare a standard formazine solution for calibration dilute the 4000 NTU standard
76. a recommended period to perform preventive maintenance This does not mean that the part is assured for an accidental failure during the period The recommended period to replace the part is only for reference purposes and it depends on the operating conditions The recommended period to replace the part may be revised according to the actual information from operating sites Spare Parts 33 Xo25 Black Name Part No Recommend 1 Change Lamp K9412AK 1 time Halfayear 2 1 micron Filter K9008ZD 1 time year Fuse 1A A1109EF 1 time year Fuse 3A A1094EF 1 time year Soft PVC Tube 2m K9411ZF 1 time year T0901 EPS 1 Recommended replace period depends on application condition 2 Please change soon when lamp disconnection Err12 or lamp life error Err25 is appeared 9 1 Customer TB450G A Maintenance Surface Scattered Type Turbidity Meter Parts List 5 6 SVi 7 8 N SV2 SV4 SV3 b ltem Part No Qty Description ltem Part No Qty Description 1 1 Converter see page 2 SV3 1 Motor Valve 2 K9412AA 1 Detector see page 3 K9411VE for 100 110 V AC 3 K9411UA 1 Zero Filter see page 4 K9411VF for 200 220 V AC K9725LW Zero Filter SV4 1 Solenoid Valve 4 K9411GC Head Tank without
77. amp is not lit and a FAIL contact is not output Reset the error message by pressing the ENT key and continue operation from step 2 Also check the ratio of the current sensitivity slope to the reference sensitivity If it exceeds the permissible range 50 to 400 Err22 is displayed see Section 5 3 3 The error message is reset by pressing the ENT key Perform operation from step 2 again At any stage of zero shift calibration operation pressing the MODE key or FUNC key allows switching to another mode or function Calibration computation is not performed unless operation 7 is carried out Note1 At this calibration the turbidity not multiplied by the correction factor from the zero shift calibration zero correction in 3 or span calibration sensitiv ity correction in 5 is displayed Note 2 Conduct the span calibration of this meter using a standard solution in the complete range of linearity from 0 to 200 NTU It is strongly recommended that a formazine solution ranging from 10 0 to 100 NTU be used as the standard solution for the span calibration IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 5 Span Calibration sensitivity correction FUNCTION 5 Apart from the sensitivity based on the calibration plate or standard solution another corrective sensitivity can be provided For details on this function see Section 5 3 3 The sensitivity correction factor can be displayed and di
78. ance mode lt MAINT gt mode 3 Setting modes e Data setting operation setting mode lt PROGRAM1 gt mode e Automatic cleaning and zero calibration setting failure detection function selection mode lt PROGRAM2 gt mode Display or setting items for data and command items such as for calibration are determined by functions in each mode Accordingly various operations require designa tion of a mode and a function code Table 6 2 outlines the modes and the function codes in each mode For detail on function codes see subsections 6 2 1 to 6 2 4 Table 6 2 Outline of Modes and Function Codes Function code FUNCTION Description This is the mode for steady operation in which turbidity is measured If execution of automatic cleaning and zero calibration is selected a sequence operation is carried out This is the mode for performing maintenance in which calibration can be done implemented items are selected using the FUNC key The data set key and valve operation keys can be operated PROGRAM 1 Data can be set such as output range setting The setting items are selected using the FUNC key The data set key and valve operation keys can be operated Operating functions such as range switching automatic remote local and execution stopping of automatic cleaning can be selected setting items are selected using the FUNC key The data set key and valve setting keys
79. ass Detector body Converter body External Dimensions Detector Converter ing water or tap water freezing countermeasures against freezing are necessary 5 to 95 RH no condensing 30 to 70 degC Approx 3 5 kg Approx 9 5 kg 316 W X 285 H X 200 D mm 260 W X 340 H X 150 D mm Entire system with mounting frame 530 W X 1450 H X 550 D mm 2 5 2 2 Characteristics Linearity When the upper limit value of span is 1000 NTU or less 2 of the range upper limit When the upper limit value of span is 2000 NTU or less 5 of the range upper limit Repeatability 2 of the range upper limit Warm up Time Approx 30 minutes 2 3 Model and Suffix Codes Style S1 Model Suffix Codes Option Codes Description TB450G _ eve einn tae Peale egies overt saree eee ee NTU compliant Surface Scattered Type Turbidity Meter Measuring Range L testr eter ttre eset te tas pesia tata Low range 0 to 0 1 to 0 to 100 NTU ed Ate i Sean ns ie eh Seni ei Shas 8 Yo sch ck tena High range 0 to 10 to 0 to 2000 NTU Output eee cee 4 to 20 mA DC E sitoaigeteiieetas eed eee eee 1to5VDC Power Supply os cs ccc 100V AC 50 60Hz Ae ndtiardvayemr eayatedenies vous 110V AC 50 60Hz E E E E EE E 200V AC 50 60Hz Zi Tsien dg E E A ET 220V AC 50 60Hz Sampling System NN EERE None sampling system Note 1 aNN eccita Always NN Optional Specification P Peters Mounting
80. ated 7 Press the gt key H0000 NTU The display is now ready for determination of the decimal point position 8 Determine the position of the decimal point H00 00 NTU using the gt key Every time the gt key is pressed the decimal point moves to the right one digit and when it reaches the least significant digit it returns to the most significant digit 9 Press the ENT key H00 00 NTU The most significant digit flashes and waits for the numerical value entry IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 10 Select a digit and set the desired upper limit H020 0 NTU using the A or v key Every time the gt key is pressed the decimal point moves to the right one digit and when it reaches the least signifi cant digit it returns to the most significant digit 11 By pressing the ENT key the upper and lower limits are entered The entire display flashes H020 0 NTU once The entire display flashes 12 When the ENT key is pressed the procedure mee returns to 1 L05 00 NTU In operation of step 6 or 11 if the upper and lower limits are beyond the permis sible range 0 to 2000 NTU not is displayed In this case reset the message by pressing the gt key and repeat the operations from step 2 Also in step 11 if the span between the upper and lower limits does not meet the following conditions when checked not is displayed Reset the message
81. bed in Section 8 1 Improper indications that cannot be checked by the self diagnostic function may also be considered If an indication failure occurs but the FAIL lamp is not lit do the checks referring to each item in Section 8 2 For checking prepare a multimeter or the like that can measure DC AC voltages DC currents and resistances As a result if component replacement or repair is required or if the location of the failure cannot be determined contact Yokogawa Electric 8 1 Events in Which FAIL Lamp Is Lit If the FAIL lamp is lit during measurement check the error number in the following procedure and carry out making checks corresponding to each number lt Error Number Confirmation Procedure gt IM 12E04A03 02E 1 Select FUNCTION A in the lt MAINT gt mode and press the ENT key 2 A display appears such as Errl1 Check the failure parts according to the checking procedure for each error number Note 1 When a failure occurs the FAIL contact operates If the FAIL status presents an inconvenience perform an error reset operation FUNCTION B in the lt MAINT gt mode to reset the failure If resetting be sure to first check the details by the error number checking operation before resetting 8 1 1 Err11 turbidity overrange Occurrence Carry out checking in the following order Operation and checking procedure Failure section and disposition 1 Measur
82. ber of cleaning repeats Note 2 One automatic cleaning cycle N cleaning draining water filling relaxation F42202 EPS Figure 4 6 Automatic cleaning Operation Time Chart Table 4 2 Cleaning Operation Setpoints Setting when Range that shipped from canbe set the factory Mode Setting mode FUNCTION Item Cleaning period 0 1 to 24 0 2 0 PROGRAM2 Cleaning time 1 10 to 120 30 PROGRAM2 Draining time 1 10 to 120 10 PROGRAM2 Waiter filling time 1 10 to 120 100 PROGRAM2 Relaxation time 30 to 600 150 PROGRAM2 Number of cleaning repetitions See Section 6 7 for the setting procedures for each setpoint 1 to 20 5 PROGRAM2 T42201 EPS 4 9 b With Automatic Cleaning and Automatic Zero Calibration refer to 2 8 3 Piping Diagrams Automatic cleaning can be started in the following two ways Startup with the internal timer Startup with FUNCTION 6 in the lt MAINT gt mode see Section 6 5 Note Startup with the internal timer can be selected for execution on stop off using FUNCTION A in the lt PROGRAM 1 gt mode It has been set to execution on when shipped from the factory The internal timer operation is shown in Figure 4 7 As shown in the figure the automatic cleaning operation is repeated at every set time of the cleaning period A and automatic zero calibration is implemented once in eve
83. ble 5 4 is 50 S0 S S 400 A Zero calibration coefficient referencing to standard solution This is calculated in calibration for items 1 and 2 in Table 5 4 and the turbidity converted value of this coefficient S X A is displayed as a zero point error because of item 7 in Table 5 5 100mV A 100 mV is the permissible range of items 1 and 2 in Table 5 4 V Measuring signal a voltage signal from the detector T2 Turbidity value after correction K Sensitivity correction factor This is calculated in the calibration of item 5 in Table 5 4 and can be displayed and changed using item 12 in Table 5 4 The permissible range in items 5 and 12 in Table 5 4 is 0 25 S K S 4 00 B Zero correction coefficient This is calculated in item 3 in Table 5 4 and can be displayed and changed using item 11 in Table 5 4 9 NTU S B 9 NTU is the permissible range for items 3 and 11 in Table 5 4 Note 1 Turbidity in the lt MEAS gt mode is displayed in T2 turbidity after correc tion However when the turbidimeter is shipped from the factory the zero and sensitivity correction factors are 0 0 NTU and 1 respectively Thus T1 T2 Note 2 For zero and span calibration of 1 2 4 and 8 referencing the standard solution T1 turbidity before correction is always displayed as turbidity IM 12E04A03 02E 5 9 5 4 Functions Related to Display In the lt MEAS gt mode each item in Table
84. brackets are only supplied when the user has specified them 3 1 3 2 50 mm dia pipe Pipe mounting braket 50 mm dia pipe Figure 3 1 Pipe Mounting Conberter fo Ne Detector J wu z fj To Pipe mounting braket F31301 EPS IM 12E04A03 02E 3 INSTALLATION PIPING AND WIRING Unit mm Galle Conberter ees A Pa o Mounting dimensions 4 M5 N Rack mounting braket M5 mounting screw 5mm 4 places Detector Rack mounting braket J p i g ope 10s l Mounting dimensions 3 M5 U I M5 moumting screw 5 mm 8places F31302 EPS Figure 3 2 Rack Mounting IM 12E04A03 02E 3 2 Piping 3 2 1 When Using TB450G Converter and Detector Alone 1 Piping for Measured Water To meet the requirement of the flow rate 1 5 to 2 0 L min provide a head tank that also works as a deaeration tank constant level tank and connect the measured water supply to the head tank The head tank needs to be installed at an adequate height so as to regulate the flow rate between 1 5 and 2 0 L min Refer to figures 3 3 and 3 4 which show the structure of a head tank and the relationship between the positions of the head tank and detector For the piping between the head tank and detector use the black s
85. brations After the indication is stable zero calibration and span calibration is made in use of zero water and calibration plate respectively First carry out zero calibration 1 Set FUNCTION 1 in the lt MAINT gt mode gt Turbidity value is dis played 2 Wait for the indication to stabilize and then press ENT gt gt ENT keys in this order to carry out zero calibration Next carry out span calibration 1 Set FUNCTION D in the lt PROGRAMI gt mode and confirm that on is displayed on means the calibration using the calibration plate on is set when shipped from the factory 2 Set FUNCTION 4 in the lt MAINT gt mode Turbidity value is dis played 3 Set to the drain status Close V2 and open V5 for with sampling system shown in section 2 8 1 Close V2 and open SV1 with sampling system and auto cleaning shown in section 2 8 2 Close SV4 and open SV1 with sampling system and auto cleaning auto zero calihration shown in section 2 8 3 IM 12E04A03 02E 4 5 4 Loosen screw A at the lower part of the detector to open the detector see Figure 4 1 5 Set the attached calibration plate as shown in Figure 4 4 6 Close the detector and tighten screw A 7 Wait for the indication to stabilize and press ENT gt gt ENT to calibrate 8 Open the detector and remove the calibration plate and then tighten screw A
86. by pressing the gt key in a similar manner and repeat the operations from step 2 Note The accuracy of the meter described in this manual is warranted for more than 10 NTU of upper limit setpoint Range span Upper limit lower limit 20 of the upper limit 2 00 NTU If the upper and lower limits are only to be confirmed pressing the ENT key alternately displays L and H If the auto range switching function is to be used set the ranges as shown below e Set 0 000 NTU for all lower limits L e Set the upper limits H in the following manner Range 1 Range 2 Range 3 e If two range operation is required set Range 2 Range 3 6 25 6 26 e If one range operation is required set Range 1 Range 2 Range 3 2 Setting Averaging Coefficient time constant FUNCTION 4 The converter display and analog output are computed for averaging by the program In this setting the extent of averaging signal time constant can be changed Table 6 9 shows an approximate correspondence between the averaging coefficient and a 90 response time The 90 response time is about the averaging coefficient X 0 75 seconds This coefficient is set at 30 about 22 seconds for a 90 response time upon shipment from the factory If the fluctuation of measured readings is large e g due to sus pended matter in the measurement object change the averaging coefficient as necessary Table 6 9 Averaging Coefficient and 90
87. can be operated PROGRAM 2 IM 12E04A03 02E The cleaning and calibration sequence time can be set setting items are selected using the FUNC key The data set key and valve operation keys can be operated Execution stopping of failure detection can be selected setting items are selected using the FUNC key The data set key and valve operation keys can be operated T060201 EPS 6 2 1 Functions in lt MEAS gt Mode Table 6 3 gives details on the functions in the lt MEAS gt mode Table 6 3 Functions in lt MEAS gt Mode Initial defaul Indication Display range Example of Initial default sims Remarks indication value Turbidity 10 00 to 2200 5 Degree mg is also possible Lamp voltage 0 100 to 6 000 Turbidity element detection 50 0 to 200 current Reference element detection current 0 2000 to 24000 Analog output in 10 0 to 110 0 Analog output in mA 2 40 to 21 60 p i Degree mg l is Zero point error 30 00 to 30 00 also possible Slope 50 0 to 400 0 Not to be selected Note 1 The values in the column for the initial value are those shown when the memory storing the data is initialized These are partially different from the values set upon shipment from the factory 1 2 These are indicated by reversing the sign or for the voltage values obtained by placing the AG terminal of th
88. ce and light receiving part with water Tighten screw A after cleaning is completed and execute zero and span calibra tions Finished Light source Light receiving part F070301 EPS Figure 7 1 Detector 7 3 7 4 Cleaning of Deforming Tank 7 4 This section describes the cleaning of the deforming tank 1 Select the lt MAINT gt mode 2 Open the valves so they are set to drain the tank For the statuses of each valve in draining see Table 6 15 3 After the water in the deforming tank is drained off open the uppers cover and wipe the inside of the tank with a soft brush sponge or the like 4 After cleaning is completed discharge any remaining dirt by supplying tap water or repeat filling the tank two or three times with zero water and then draining it until all of the dirt in the deforming tank is discharged with the water 5 Finished Good No good 7 Deforming tank o h A Sample outlet Always install the deforming tank so that the sample outlet is placed ii in the down position Water supply F70401 EPS Note After cleaning the deforming tank be sure to restore the deforming tank so that the sample outlet is placed in the down position Otherwise bubbles are easy to generate IM 12E04A03 02E 7 MAINTENANCE 7 5 Lamp Replacement
89. clined position TS Measurement cell Adjustment screw vi al Lock nut First loosen the lock nut and then turn the adjustment screw When adjustment is completed lock the screw by tightening the lock nut F41501 EPS Figure 4 3 Adjustment Screws 4 4 IM 12E04A03 02E 4 OPERATION 4 1 6 Feeding Cleaning Water Check whether the cleaning water flow rate is adequate while zero calibration water is being fed This procedure is unnecessary when the cleaning water is not connected to the detector 1 Using the SV2 key of the converter open cleaning water valve SV2 Note 1 If the automatic cleaning function is not used SV2 does not exist 2 Gradually open V4 and feed the cleaning water at a rate that does not allow water to splash out of the detector s measuring cell 3 Shut SV2 Note 2 If the automatic cleaning function is not used leave V4 shut 4 Shut the detector and tighten screw A see Figure 4 1 to fix the upper part Note 3 If the automatic cleaning function is not used manually open and shut V4 whenever performing cleaning 4 1 7 Setting Output Range Set the analog output range selection local remote and the range When shipped from the factory this is set to local range selection and to RANGE1 0 to 10 NTU For output range setting see Section 5 2 4 1 8 Running in Carry out running in for an hour or more while allowing zero water to flow 4 1 9 Zero and Span Cali
90. ction level is to consider the dispersion among the levels of the detector s pre averaging turbidity signal and set a value greater than that dispersion To find out the dispersion before averaging set the averaging factor FUNCTION 4 in the PROGRAM1 mode to 1 The turbidimeter directly outputs a non averaged value for the present turbidity reading and output Set a hold time greater than the length of time that air bubbles or dust remain on the light scattering surface Normally air bubbles and dust are carried away or disap pear in a relatively short time as short as a few seconds In practice however set a shorter time initially and then increase it a slightly if the option does not function satisfactorily In most cases air bubbles or dust contaminants do not occur in rapid succession Accordingly you may not necessarily have to set a short period of sampling time Setting too short a sampling time may result in a response delay if a drastic change actually occurs in the turbidity of water under measurement First set a relatively long sampling time and then make it shorter if there is anything wrong with the behavior of the option For details on setting in the PROGRAMI mode see 6 6 Notes on Use 5 14 Be careful when using this option as the following restrictions apply 1 2 3 4 5 6 The option is designed to work in the MEAS mode only Upon a change to the MAINT mode the turbidimeter resets the
91. detection level 6 Does not perform the detection level check during the holding period 7 Does not perform the detection level check but performs the averaging calculation and updates the turbidity indication and output for the sample time after the holding time has passed 8 Starts performing detection level check again after the sample time has passed The Bubble Retardant option is effective for regular processes where the change in turbidity is comparatively small it may not be suitable for processes where turbidity changes drastically Even though there is no drastic change in turbidity the turbidity indication may sometimes change like a step pulse If this is the case this option may cause a delay in the turbidity indication or output response When using the option give full consideration to your process conditions and adjust the option s setpoint little by little so that it befits the operating conditions In conclusion take note of the following when using the option 1 Adjust the detection level according to the degree of change in the reading due to air bubbles or dust 2 Do not set the hold time at too large a value as the turbidimeter may fail to measure the change in turbidity indication which is its primary purpose 3 If the option is responsible for the delay in the response of the turbidity indication try setting a relatively longer sampling time without
92. e Contact outputs C1 and C2 can be used as contacts for the period during cleaning and calibration This is set using FUNCTION E in the lt PROGRAM1 gt mode Note 1 N Number of cleaning repetitions Note 2 One automatic cleaning cycle N draining filling cleaning draining filling relaxation F42204 EPS Figure 4 8 Automatic cleaning Operation Time Chart Table 4 3 Setpoints for Automatic Cleaning and Automatic Zero Calibration Item be ae om e Unit pene moce the factory Mode FUNCTION Cleaning period 0 1 to 24 0 2 0 Hours PROGRAM 2 il Cleaning calibration ratio 1 to 10 1 times PROGRAM 2 2 Cleaning time 2 10 to120 30 second PROGRAM 2 5 Draining time 2 10 to 120 10 second PROGRAM 2 T Water filling time 2 10 to120 100 second PROGRAM 2 9 Relaxation time 30 to600 150 second PROGRAM 2 A Number of cleaning repetitions 1 to 20 5 times PROGRAM 2 3 T42202 EPS For the setting procedures for each setpoint see Section 6 7 4 2 3 Automatic Zero calibration Operation If the automatic zero calibration is added zero calibration is automatically performed The automatic zero calibration computation is implemented by passing zero water and at a stabilized indication after performing the same cleaning operation as automatic cleaning in subsection 4 2 2 b In addition at the start and end of automatic zero calibration all starting and completing digital information is output se
93. e FUNCTION 4 The signal detected by the light receiving element for the amount of light from the lamp is displayed as the voltage 5 Analog output in FUNCTION 5 The current output signal is displayed in a of the selected output range span Example In the case of output range 0 to 10 NTU and Turbidity indication 6 00 NTU 00 7929 100 60 0 Indication F060401 EPS The analog output is sent out in the range of 10 to 110 of the output range span 6 Analog output in mA FUNCTION 6 The current analog output value is displayed in a value converted to mA The value is directly displayed for a 4 to 20 mA output but for a 1 to 5 V output it is dis played by converting it into a 4 to 20 mA output 7 Zero point error FUNCTION 7 The measuring voltage signal for zero water or with the light source turned off at zero calibration is displayed in a value converted to turbidity If the measuring signal at zero calibration exceeds the range of 10 to 10 mV Err21 is displayed 6 10 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 8 Slope FUNCTION 8 When the sensitivity at the reference sensitivity calibration is taken as 100 this indication displays the ratio as a percentage of the sensitivity obtained at usual span calibration to 100 If the sensitivity exceeds the range of 50 to 400 at span calibration Err22 is displayed IM 12E04A03 0
94. e detector to the negative side T060202 EPS IM 12E04A03 02E Functions in lt MAINT gt Mode Table 6 4 gives details on the functions in the lt MAINT gt mode Table 6 4 Functions in lt MAINT gt Mode Operation Zero calibration zero water Permissible calibration range 10 to 10mV 6 PROCEDURES FOR CONVERTER OPERATION Initial indication Measured turbidity value Remarks Uses zero water Zero calibration lamp is off 10 to 10mV Measured turbidity value Automatic turning off of light source Zero shift calibration zero point correction 9 000 to 9 000 NTU Measured turbidity value Zero shift calibration zero correction Span calibration standard solution or calibration plate 50 to 400 Measured turbidity value Selection of calibration plate standard solution Span calibration sensitivity correction 0 25 to 4 Measured turbidity value Sensitivity correction for the standard solution calibration plate reference Manual start of automatic cleaning JEt Effective for the model wit automatic cleaning Manual start of automatic calibration A CAL Effective for the model with automatic zero calibration Reference sensitivity calibration 1 Measured turbidity value Criteria for slope failure Converter check operation C CHEC Checked by switching to dummy input Display 50 0 NTU Output 12mA
95. e digital communication specifications in Section 2 1 Automatic zero calibration can be started in the following two ways Startup with the internal timer see Figure 4 7 Startup with FUNCTION 7 in the lt MAINT gt mode see Section 6 5 Note Startup with the internal timer can be selected for execution on stop off using FUNCTION B in the lt PROGRAM 1 gt mode It has been set to execution on when shipped from the factory Figure 4 9 shows the automatic zero calibration operation time chart For the setting see Table 4 3 lt Valves used gt SV1 Drain valve SV2 Cleaning water valve SV3 Measuring water valve SV4 Zero water valve Note This function is available when parameters of sampling function on the converter is specified for the system with automatic cleaning function or automatic zero calibration 4 12 IM 12E04A03 02E 4 OPERATION lt Time chart gt N number of cleaning repetitions 4 Example Calibration start I I ee ee 1 Draining time 2 E Draining time Water filling time 2 Relaxation time Cleaning Water filling l i ime 2 id time 2 time RES Water filling time 2 i z m i l ON l i l l l l i I l sv1 i it Drain N 1 Il 12 13 14 en a M I I ON i i i i i TEIE a l I l l i I T Cleaning on i i I I I I I I I I I I I I I I sv3 OFF Pt o l i l l l i ON I ol I I l
96. e inside wall of the case with a brush or the like if it is dirty Replace the filter element with a new one In this case be sure that the O ring for preventing water leakage is not bitten Reassemble the filter in the reverse order of disassembly Open valves V2 and V3 let zero water flow and check whether or not any water leaks out Loosen the knob of the air vent at the top of the filter and vent the air until tap water begins to leak out After the air venting is completed tighten the knob Allow water to flow for 20 minutes or more to run in the filter 10 Finished Note If the zero filters is not to be used for a prolonged time remove the filter and dry Knob of the air vent and store it in a dry place O ring Turn to remove F070901 EPS Figure 7 5 Replacement of Zero Filter IM 12E04A03 02E 7 13 7 10 Replacement of Fuses For preventive maintenance it is recommended that the fuses be replaced each with a new one after a period of one year As there are both 1 A and 3 A fuses do not mix them up 1 Turn off the power switch 2 Remove the caps of the fuse holders on the front panel of the converter turn counterclockwise see Figure 7 6 3 Replace the fuses 4 Close the caps now the procedure is completed JOI EJ RATION JEJE Fuse 1A Fuse 3A F071001 EPS Figure 7 6 Replacement of Fuses 7 11 Cleaning of Piping
97. e second digit from the left 7 Press the ENT key to terminate calibration 000 22 NTU The entire display flashes once and the CAL lamp goes out In addition if the turbidity value set in operation 7 exceeds the permissible setting range 0 to 2200 NTU not is displayed As this setpoint is out of range reset the error message by pressing the gt key and continue the operation from step 2 Also check the zero correction factor if it exceeds the permissible range 9 NTU Err23 is displayed In this case the FAIL lamp is not lit and a FAIL contact is not output Reset the error message by pressing the ENT key and continue opera tions from step 2 At any stage of zero shift calibration operation pressing the MODE key or FUNC key allows switching to another mode or function Calibra tion computation is not performed unless operation 7 is carried out IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 4 Span Calibration by standard solution or calibration plate FUNCTION 4 This is the operation for normal span calibration by the calibration plate or standard solution For details on valve operation and others see Sections 7 6 and 7 7 Select whether the calibration plate or standard solution is used in span calibration in FUNCTION D in the lt PROGRAM 1 gt mode The following is the key operation procedure a Span calibration with calibration plate Example o
98. e the DC voltage across the converter connection terminals S1 and AG to make sure of it and confirm that it is smaller than 2 45 V or larger than 0 5V Check whether or not the turbidity of measuring water a Erri1 is detected when the exceeds the measurable range 2200 NTU turbidity of the measuring water increases and the detector signal exceeds 2 45 V Measure the DC voltage across the converter connection b If the measured voltage is out of terminals V and AG and confirm that it is 5 the range a failure of the 5 V 60 5 V power circuit on the converter analog board is assumed Request inspection and or repair of the analog board Measure the DC voltage across the converter connection c If the measured voltage is out of terminals V and AG and confirm that it is 5 the range a failure of the 5 V 0 5 V power circuit on the converter analog board is assulned Request inspection and or repair of the analog board Introduce the external light onto the scattered light d If the measured voltage does not receiving element by opening the detector and check change a failure of the detector whether the DC voltage across the converter connection preamplifier is assumed terminals S1 and AG changes Request inspection and or repair of the measuring preamplifier T080101 EPS 2 Err12 lamp disconnection Occurrence Carry out checking in
99. ecify each function in the lt PROGRAMI1 gt mode and the displays accompanying those key operations in the following order 1 Setting output ranges 1 2 and 3 2 Setting averaging coefficient time constant 3 Setting output value if an error occurs 4 Setting line segment function output 5 Setting change over point in auto ranging 6 Setting upper limit alarm value 7 Setting lower limit alarm value 8 Setting turbidity value of calibration plate 9 Setting zero correction factor 10 Setting sensitivity correction factor 11 Setting detection level for bubble vetardant 12 Setting hold time for bubble retardant 13 Setting sampling time for bubble refardant 14 Auto range selection 15 Remote range selection 16 Local range setting 17 Setting output hold in maintenance 18 Setting output mode if a failure occurs 19 Setting output holds for 4 mA or less 20 Setting negative turbidity display hold 21 Setting display hold in automatic cleaning and calibration 22 Selecting MS codes sampling specifications 23 Selecting execution stop of automatic cleaning function 24 Selecting execution stop of automatic calibration function 25 Selecting designation of unit 26 Selecting calibration plate or standard solution 27 Selecting AUX C1 C2 contact outputs 28 Selecting excution stop of bubble refardant function 6 23 6 24 1 Setting Output Ranges 1 2 and 3 Functions 1
100. ection factor Setting of sensitivity correction factor Detection level setting Hold time setting Sampling time setting Auto range selection 1 Remote range selection 1 Local range selection 1 Output holds setting in the lt MAINT gt lt PROGRAM1 gt or lt PROGRAM 2 gt mode Output mode setting in failure occurrence Setting to output holds for 4 mA or less Setting to hold negative turbidity display Automatic cleaning or automatic calibration added Basic code sampling specifications setting Automatic cleaning function execution stop Automatic calibration function execution stop Selection of unit to indicate Selection of calibration plate standard solution Selection of AUX contact output Bubble retardant Setting range details 0 00 to 2000NTU 0 00 to 2000NTU 0 00 to 2000NTU 1 to 255 10 to 110 0 to 100 70 to 100 10 0 to 2200 0NTU 10 0 to 2200 0NTU 00 000 to 0120 0NTU 9 000 to 09 000NTU 0 2500 to 4 000 1 to 100 1 to 600sec 1 to 600sec ON OFF ON OFF __1 __2 _ 3 ON OFF __1 __2 _ 3 ON OFF ON OFF ON OFF __1 __2 _ 3 ON OFF ON OFF __1 __2 3 ON OFF ON OFF ON OFF 1 The priorities of these items are as follows see subsection 5 2 1 Auto range gt Remote range gt Local range Note 1 The values in the initial value column are those given when the memory storing the data is initialized These may be partially different from t
101. eeds the permissible range 0 6 to 2 3 V Error is displayed The error message can be reset by pressing the ENT key Repeat the procedure from the adjustment of the lamp s position If the mode is switched to another mode using the MODE or FUNC key after step 2 or after calibration is terminated by operating step 3 lamp voltage control restarts As it takes a little time until the lamp voltage stabilizes allow 30 minutes or more before starting measurement Since the lamp voltage does not change unless step 2 is operated a waiting time is not necessary 13 Version Number Display FUNCTION E This function displays the converter program version number Example of display 1 Select FUNCTION E in the lt MAINT gt gt 1 00 mode 14 Password Entry to Switch to the Adjustment Mode FUNCTION F This function is for only utilization of the service mode by service personnel of Yokogawa Electric Thus this function is not usually operated 6 22 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 6 6 Operation in lt PROGRAMI gt Mode IM 12E04A03 02E In the lt PROGRAM I gt mode data setting operations such as output range and operating status setting operations such as auto range selection are carried out Functions 1 to F Data settings Functions 1 to F Operating status settings Section 6 6 describes key operations which sp
102. elief Indicates the operation mode The lamp relevant to the current operation mode is lit Indicates the unit of the data The unit of the data item currently displayed in the data display lt FAIL gt indication in red characters in relief Turns on when the processor fails or other failures are detected Operation indication area 1 in green characters in relief Turns on or off in response to the lamp turning on or off or the selected range of the analog output Operation indication area 2 in green characters in relief Turns on or off in response to the solenoid valve being on or off Status indication area in green characters in relief Lights up goes out or flashes corresponding to the output hold calibration and cleaning statuses Mode key Used when selecting an operation mode Function key Used when selecting the function code Data set keys Used when changing data settings or implementing calibration Valve operation keys Used when turning solenoid valves on or off Every time a key is pressed the solenoid valve relevant to the key is turned on or off T060101 EPS IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 6 2 Operation Modes and Functions Operation of the turbidimeter is divided principally into three operation modes modes are classified into four types 1 Measurement mode lt MEAS gt mode 2 Mainten
103. eration of solenoid valves etc or entries of operation parameters etc are to be executed This chapter describes key operation procedures details of indications on the display etc 6 1 Components of Operation Panel and Their Functions and Actions The converter is operated completely with keys on the operation panel The panel includes display areas for data modes function codes etc in which measured values and operating statuses are displayed Figure 6 1 and Table 6 1 shows the operation panel components and their functions 5 lt FAIL gt indication 1 Data display 3 Mode indication 6 ri indication 7 Operation area indication area 2 NN a LAMP RNO1 RNO2 RNO3S SV2 SV3 SV4 Cc MEAS NTU mg l Cc MAINT C PROGRAM 1 8 Status lt gt PROGRAM 2 indication area FUNC NOLD CAL WASH DATA SET te MANUAL OPERATION A EJee 12 Valve operation keys Figure 6 1 Operation Panel IM 12E04A03 02E 4 Unit indication area 2 Function code display area 10 Function key F060101 EPS 6 1 Number in figure Table 6 1 Operation Keys Display Indications and Functions Data display displays in red LED figures Function Displays measured values set data messages etc Function code display area in red Displays the function code selected Mode indication area indicates by lighting up a green lamp Unit indication area in green characters in r
104. etector and converter see Section 1 2 1 1 1 Configuration with Only TB450G Converter and Detector A system comprising only a converter and detector is the simplest possible system however the following must be observed to ensure that there is no loss in the perfor mance of the TB450G The flow rate of the measured water needs to be 1 5 to 2 0 L min at the detector Provide a head tank to satisfy this condition as well as to deaerate the measured water When measuring low turbidities not greater than 200 NTU provide the specified micro filters on the feed line of zero calibration water 1 1 2 Configuration with Sampling System This system is composed of a converter a detector and a sampling system that feeds the measured water zero calibration water and cleaning water manually This system requires the user to manipulate hand operated valves to feed the measured water perform cleaning and perform a zero calibration A diagram showing the recommended piping is shown in Section 2 8 1 The measured water is introduced to the head tank deaeration tank via hand operated valve V1 The measured water deaerated in the tank is fed to the measuring cell of the detector at a constant flow rate of 1 5 to 2 0 L min due to the difference in the water head between the head tank and detector s measuring cell The overflow is discharged through a drain hole Tap water filtrated by micro filters is used as the zero calibration water Tap
105. evel ssseeeseessesseeseeresrssreesessrseressesersesesesseseses 7 15 7 13 Operation If Water Supply is Suspended o0 eect ceeceseceeeeseeeeeeeees 7 15 7 14 Operation During Power Failure and at Power Recovery eee 7 16 7 15 Standard Formazine Solution eee ceseceeceseeseceseeeeceeeeeeeeeeeeeseneeeeeens 7 17 7 15 1 Preparing 400 NTU Standard Formazine Solution eee 7 17 7 15 2 Preparing Standard Formazine Solution for Calibration 0 0 7 18 8 TROUBLESHOOTING essesesessesesereesesosorseseroeoesosoesesesocoesororseseeoesesoroeseseseeee S L 8 1 Events in Which FAIL Lamp Is Lit ooo ceceseeeceseeeceeeeeeneeneees 8 1 8 2 FAIL Lamp Not Cit pie neni heiietnn Ria a a AN 8 6 9 SSM AIG E 1 A EE A vis oyu Geis E A EAEE S R E l Customer Maintenance Parts List c ccccccssssssssssssssssssssseeees CMPL 12E04A03 02E Revision Record IM 12E04A03 023E 1 OVERVIEW 1 OVERVIEW The range of applications for turbidity meters originally used only for operation and management of water purification plants has recently been expanded to include such applications as turbidity detection in chemical processes and measurements of concentra tion of suspended solids in a variety of industrial wastewater The TB450G NTU compliant surface scattering type turbidity meter is an industrial turbidity meter employing the Right angled Surface Scattering light measuring method and has the following features Incorporates a micro
106. ews Note 1 If a level is not available visual adjustment is acceptable In this case it should be adjusted so that water spills out from the drain outlet uniformly when feeding the zero calibration water or measured water 3 Shut valve V5 or SV1 below the head tank and feed the zero calibration water or measured water to the head tank at 2 to 3 L min For how to check the flow rate see note 3 in Section 4 1 4 4 Check whether the flow rate of feed to the detector is within 1 5 to 2 L min For how to check the flow rate see note 4 in Section 4 1 4 If the flow rate exceed this range follow the steps below to adjust the flow rate wm 5 wm Open valve V5 or SV1 below the head tank and discharge water from the head tank and detector 6 If the flow rate of feed to the detector s measuring cell is below 1 5 L min lower the detector s measuring cell by turning the 4 adjustment screws while ensuring the detector remains level 7 If the flow rate of feed to the detector s measuring cell is beyond 2 0 L min raise the detector s measuring cell by turning the 4 adjustment screws while ensuring the detector remains level 8 wm Repeat steps 3 to 6 above until the flow rate of feed to the detector falls within 1 5 to 2 L min 9 After flow rate adjustment is finished turn the 2 screws B left screws in Figure 4 1 by 2 rotations to lower that side and then tighten their lock nuts when the measuring cell is in an in
107. f Fuze 3A for spare parts Page 9 1 P N change of Fuze 3A for spare parts CMPL 12E04A03 02E has been revised to 4th edition some of P N changed All Rights Reserved Copyright 1999 4th Edition Sep 2011 YK IM 1 2E04A03 02E YOKOGAWA amp Subject to change without notice Fi 1st Edition Yokogawa Electric Corporation 2 5 Spare Parts 33 Xeb25 Black Name Part No Recommend 1 Lamp K9412AK 1 time half a year 2 1 micron Filter K9008ZD 1 time year Fuse 1A A1109EF 1 time year Fuse 3A A1113EF 1 time year Soft PVC Tube 2m K9411ZF 1 time year 1 Recommended replace period depends on application condition 2 Please change soon when lamp disconnection Err12 or lamp life error Err25 is appeared 2 6 Sampling Parts T25001 EPS Name Part No Pinch Valve for Drain water 100 110V AC K9411JG Pinch Valve for Drain water 200 220V AC K9411JH Solenoid Valve for Cleaning water or A1113MV Zero water 100V AC Solenoid Valve for Cleaning water or A1115MV Zero water 110V AC Solenoid Valve for Cleaning water or A1114MV Zero water 200V AC Solenoid Valve for Cleaning water or A1116MV Zero water 220V AC Motor Operated Valve for Sampling water K9411VE 100 110V AC Motor Operated Valve for Sampling water K9411VF 200 220V AC Head Tank With Manual Valve K9411GC Head Tank With Pinch Valve 100 110V AC K9411JA
108. f display 1 Select FUNCTION 4 in the lt MAINT gt gt 0012 5 NTU mode 2 Wait until the display becomes stable and then 0012 5 NTU press the ENT key The CAL lamp flashes 3 Press the gt key 0012 5 NTU The preset turbidity value of the calibra tion plate is displayed 4 Press the ENT key to terminate calibration gt 0012 5 NTU The display flashes once and the CAL lamp goes out In operation 4 check the difference between the current turbidity value and the calibration plate turbidity value If it exceeds the permissible range 50 of the preset calibration plate turbidity value Err24 is displayed In this case the FAIL lamp is not lit and a FAIL contact is not output Reset the error message by pressing the ENT key check that the calibration plate is set in place and continue operation from step 2 Also check the ratio of the current sensitivity slope to the reference sensitivity If it exceeds the permissible range 50 to 400 Err22 is displayed see Section 5 3 3 The error message is reset by pressing the ENT key Perform operation from step 2 again At any stage of zero shift calibration operation pressing the MODE key or FUNC key allows switching to another mode or function Calibration computation is not performed unless operation 4 is carried out Note At this calibration the turbidity not multiplied by the correction factor from the zero
109. flow for 4 minutes or more and after the reading stabilizes carry out span calibration For the operating procedure see Section 6 5 4 After calibration is completed stop supplying the standard solution and drain it Reconnect the measuring water piping and restart the supply of measuring water It takes a certain time until the detector deforming tank and piping are completely filled with new measuring water 10 Select FUNCTION D in the lt PROGRAM I gt mode and return the setting to ON 11 Finished 7 11 7 8 Cleaning of Lenses 1 Cleaning of Lenses Select the lt MAINT gt mode and turn off the power switch 2 Loosen screw A under the detector cover and open the detector see Figure 7 4 3 Check whether or not the lenses in the detector see Figure 7 4 are dirty If they are wipe them using e g an applicator In this case it is better to soak the applica tor in alcohol 4 After cleaning the lenses carry out zero and span calibrations 5 Finished Lenses SI Screw A F070801 EPS Figure 7 4 Lens Positions 7 12 IM 12E04A03 02E 7 MAINTENANCE 7 9 Replacement of Filter for zero water If the filter employs an element for zero water replace it periodically 1 2 3 9 Select the lt MAINT gt mode Shut valves V2 and V3 Turn the filter case to remove it Exercise care because water inside the case may spill out Wipe th
110. for the setting operations Example of display 1 Select FUNCTION 6 in the lt PROGRAMI gt 00050 mode 2 Press the gt key 00050 The most significant digit flashes 3 Select a digit with the gt key and set it to the 00060 desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set value 00060 The entire display flashes once In step 4 if the set value is beyond the permissible range 0 to 100 not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 5 Setting Change over Point in Auto ranging FUNCTION 7 If auto range is used the range is changed over at the point set here The changeover point is displayed and set at a ratio to the upper limit setpoint of the range The following shows the operating manner e The time to change over from the lower range to the higher range is the point where measured values become larger than the change over point in the lower range e The timing to change over from the higher range to the lower range is a point where measured values become 10 smaller than the change over point in the lower range The following describes the setting key operations Example of display
111. g system See Section 2 8 2 SV1 SV2 With sampling system automatic cleaning See Section 2 8 3 SV1 SV2 system and automatic zero calibration system SV3 SV4 T29001 EPS Figure 2 8 System configuration and Connections IM 12E04A03 02E 2 13 3 INSTALLATION PIPING AND WIRING 3 INSTALLATION PIPING AND WIRING 3 1 Installation 3 1 1 Unpacking The NTU compliant surface scattered type turbidimeter is shipped after being suffi ciently packed so as not to be damaged during transportation When the turbidimeter is delivered unpack the meter carefully If the turbidimeter with a sampling system is delivered unpack them near the location where they are to be installed 3 1 2 Installation Location 3 1 3 Installation IM 12E04A03 02E The NTU compliant surface scattered type turbidimeter should be installed in a location where 1 rainwater cannot get inside such as in a building or a cubicle 2 there is little vibration 3 there are few corrosive gases 4 there is not much humidity 5 there is little temperature change and the temperature is maintained around normal 6 there is enough clearance for maintenance and maintenance work can be easily done 7 drain off can be well provided Installation of the NTU compliant surface scattered type turbidimeter need to mount the detector and converter onto pipes nominal diameter of 50 mm or racks with the special mounting bracket Note that these
112. he display comprises __1 _ _2 and _ _3 pressing the gt key indicates one of them in this order b A Key Numeral up key Every time this key is pressed the numeric value of the selected digit increases in turn when it reaches 9 it returns to 0 In the most significant digit a minus sign is inserted next to 9 However if the displayed data do not include negative values the negative sign is not inserted c v Key Numeral down key Every time this key is pressed the numeric value in the selected digit decreases in turn when it reaches 0 it returns to 9 In the most significant digit a minus sign is inserted next to 0 However if the displayed data do not include negative values the negative sign is not inserted d ENT Key Entry key This key is used to enter displayed data When data are entered the entire displayed data flash only once 6 3 4 Opening Closing Valves The opening or closing of a solenoid valve is performed with the valve operation key in the maintenance mode When a solenoid valve operates the relevant lamp is lit Regard less of a solenoid valve s open close status in the maintenance mode if the mode is changed to the lt MEAS gt mode e g for the specification with automatic cleaning and automatic calibration the predetermined sequential operation is performed and the solenoid valves automatically open or close Table 6 7 shows the use
113. he values set upon shipment from the factory Initial value Remarks The 90 response time is about 22 seconds This varies with the calibration plates Execution Stop Execution Stop Output range 1 Output range 2 Output range 3 Hold No hold No hold Hold Preset Execution Stop Execution Stop Execution Stop Without automatic cleaning and automatic zero calibration Autmatic cleaning added Autmatic cleaning and zero calibration added Execution Stop Execution Stop NTU gt mg Degree Calibration late Standard solution Upper and lower limit alarm In automatic cleaning or automatic calibration Execution Stop Note 2 If an unused function code is selected _____ is displayed Note 3 If a value out of the set range is entered not is displayed Pressing the gt key restores this indication to the data display T060204 EPS 6 6 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 6 2 4 Functions in lt PROGRAM2 gt Mode Table 6 6 gives details on the functions in the lt PROGRAM gt mode Table 6 6 Functions in lt PROGRAM2 gt Mode Operation Setting range details Initial value Remarks Setting of time range for automatic 0 1 to 24 0 hours 0002 0 cleaning Setting of cleaning calibration ratio 1 to 10 times 00001 Setting of number of cleanings 1 to 20 times 00005 Setting of cleaning
114. head tank instead of the hand operated valve V5 For the drain pipe use a tube that meets the specifications of the pinch valve When using the automatic calibration function of the TB450G refer to Section 2 8 3 and provide the pinch valve SV1 as well as the motor valve SV3 for switching over the feed to the head tank between the measured water and zero calibra tion water The following shows the recommended specifications of the pinch valve SV1 and motor operated valve SV3 Pinch valve SV1 Working pressure Connection tubes O D 23 I D 19 mm silicon tube Power supply As specified for TB450G Maximum power consumption 60 W Cable inlet port Applicable to an O D 6 to 12 mm cable Protection class Waterproof 100 M ohms or greater 1000 V AC for 1 minute 0to 10 kPa Insulation resistance Withstanding voltage Motor operated valve SV3 3 6 Type Ball valve with motor actuator Working pressure 0 to 1 MPa Fluid temperature 0 degC to 50 degC Nominal size 1 2 inch 15 mm Cv 12 Process connections TS sockets Rated torque Open close time Motor type Motor protection 3 Nm 30 kg cm 4 5 to 5 4 seconds Inductor synchronous motor With built in thermal protector IM 12E04A03 02E 3 INSTALLATION PIPING AND WIRING Power supply As specified for TB450G Maximum power consumption 14 VA or 8 W Cable inlet port Applicable to an O D 6 5 to 7 mm cable Protection class Rainp
115. hipment from the factory are changed the extra time is needed IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 10 Error Code Display FUNCTION A If the FAIL lamp is lit an error code is not displayed at the time of an error occurrence This function is used to confirm an error code Table 6 8 shows error codes displayed with this function and their contents Table 6 8 Error Codes and Their Contents Error code Contents Mode for detection Turbidity overrange MEAS Lamp disconnection MEAS Lamp voltage error MEAS A D circuit error Any mode Memory comparison error Any mode Reference signal voltage error MEAS Service life of lamp MEAS Automatic zero calibration error MEAS T060501 EPS The following is the procedure for this function Example of display 1 Select FUNCTION A in the lt MAINT gt gt E CHEC is displayed mode 2 Press the ENT key gt Errll Errll flashes If there is more than one error they appear in turn 3 Press the ENT key gt E CHEC is displayed If this function is operated when there is no error Good is displayed For troubleshooting when errors occur see Chapter 8 11 Error Resetting FUNCTION B This function can reset error statuses FAIL lamp and FAIL contact output An error status is automatically reset at an instance when the causes of an error are removed
116. hold time timer or sampling time timer and the option stops working Further the option will not work if in the MAINT mode the data item Hold Analog Output is set to Disable The option does not work during automatic zero calibration or automatic cleaning If automatic zero calibration or automatic cleaning begins when the option is active i e during the hold time or sampling time the option stops working at that moment and the timer is reset Both the turbidity reading including the value of the communication data and the analog output are kept in the hold state The option does not function during an interval of approximately five seconds right after the turbidimeter is turned on If the turbidimeter is turned off and then back on when the option is active the timer is reset Since the reference clock runs at a period of approximately 1 07 seconds the actual intervals of both the sampling time and hold time are slightly greater than their respective setpoints For example a setpoint of 10 seconds equals an actual time interval of approxi mately 11 seconds i e 10 X 1 07 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION PROCEDURES FOR CONVERTER OPERATION The converter incorporates a microprocessor and has automatic cleaning automatic zero calibration and self diagnostic functions as well as turbidity measuring functions The converter is operated when display of various data manual op
117. ic Corporation Fuse 1A Fuse 3A 1st Edition Apr 2000 1st Edition Apr 2000 K9412AA DETECTOR All Rights Reserved Copyright 2000 Yokogawa Electric Corporation Item Part No Qty Description 1 1 Mounting hardware K9410DC Option Code in case of P K9410DE Option Code in case of R 2 L9813WE 1 Clamp 3 K9412AJ 1 Lamp Assembly 4 K9412BY 1 Holder 5 L9811CV 1 Cable Grand 6 K9410CQ 1 Cable Assembly CMPL 12E04A03 02E K9411UA ZERO FILTER 1 micron filter Item Part No Qty Description 1 K9008ZD 1 Filter Element 1 micron 2 K9411UB 1 Case 3 K9008ZE 1 Plate 4 K9411UD 1 O Ring CMPL 12E04A03 02E All Rights Reserved Copyright 2000 Yokogawa Electric Corporation 1st Edition Apr 2000 Revision Record Manual Title Model 450G H NTU compliant Surface Scattered Type Turbidity Meter High Renge Type Manual Number IM 12E04A03 02E Edition Date Remark s Ist Apr 2000 Newly published se o User s Model TB450G H Supplement Manual NTU compliant Surface Scattered Type Turbidity Meter High Range Type Thank you for selecting Model TB450G H NTU compliant Surface Scattered Type Turbidity Meter High Range Type The Instruction Manual IM 12E04A03 02E 1st edition supplied with this product has been amended as follows please make a note in your copy Page 2 7 P N change o
118. ic cleaning operation is repeated at every preset time of the cleaning period A Figure 4 5 Measurement start 1 Cleaning Cleaning Cleaning Cleaning Cleaning Cleaning Y E T T i ts 1 Measurenent start is define to be the point specifid in the following Other mode lt MEAS gt mode powee off Power on lt MEAS gt mode F42201 EPS 1 Measurement start is defined to be the point specified in the following Figure 4 5 Cleaning Period 4 8 IM 12E04A03 02E IM 12E04A03 02E 4 OPERATION Figure 4 6 shows the automatic cleaning operation time chart and Table 4 2 the list of settings for automatic cleaning lt Valves used gt SV1 Drain valve SV2 Cleaning water valve lt Time chart gt Ex N number of cleaning repetitions 4 Measurement start Draining time 1 1 2 3 4 Power on i Cleanig time 1 Water filling time1 l ly Relaxation time I Cleaning period R ki Ja l i l r ttt ON a i l I I I sa tor 1 LEE ULL 1 I I I N I 4 l ON I Li i I SV2 jee O cleanig One cleaning cycle gt I lt HOLD 1 HOLD I Output hold OFF L 4 1 During cleaning the output is always in the hold state The display is also set to be held using FUNCTION 8 in the lt PROGRAM1 gt mode Contact outputs C1 and C2 can be used as contacts for the period during cleaning and calibration This is set using FUNCTION E in the lt PROGRAM1 gt mode Note 1 N Num
119. if off no hold is selected FUNCTION 5 setting has priority provided that __ 2 hold or _ _ 3 preset is selected in the operation of FUNCTION 5 the next item 6 38 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 18 Setting Output Mode If a Failure Occurs FUNCTION 5 This function sets the analog output mode no hold hold or preset if a failure occurs the FAIL lamp is lit The operation details are as follows e No hold Even if a failure occurs the analog output does not hold e Hold When a failure occurs the analog output immediately before the occur rence holds until the failure returns to normal e Preset When a failure occurs the analog output is held at a preset output value The preset value is set with FUNCTION 5 described in this section 3 The following describes the setting key operations Example of display 1 Select FUNCTION 5 in the lt PROGRAM 1 gt gt _ _1 Non hold mode The current set code is displayed 2 Press the gt key to select the setting code _ _2 Hold __1 Z o 2 Tha __3 No hold Hold Preset FO60603 EPS 3 Press the ENT key to enter the set code gt _2 The display flashes once In this function if __ 2 hold or _ _ 3 preset is selected this setting has priority over the setting in FUNCTION 4 IM 12E04A03 02E 6 39 6 40 19 Setting Output Hold for 4 mA or
120. ils in the lt MEAS gt mode the internal timer is reset upon power recovery Thus automatic cleaning and automatic zero calibration operations start to operate at the measurement start point in Figure 7 8 Measurement 1 Cleaning Cleaning Calibration Cleaning Cleaning Calibration D w I I I I I I gt 1 I I I I i i i i I 1 i lt B gt lt lt B gt B gt l l l p I I l 1 ot w mee ane 5 w oo oe A agers Sea 4 gt oe Sere 4 Calibration period A and 1 Measurement start means the time point when cleaning period B other modes lt MEAS gt mode or power off power on MEAS gt mode F071401 EPS Figure 7 8 Automatic Cleaning and Automatic Zero Calibration Periods If the power fails valves SV1 and SV3 monitor valves retain the status before the power was turned off open or closed Note that even if the power fails they may not necessarily be closed Valves SV2 and SV4 solenoid valves are shut The contact statuses are as shown in Table 7 2 Table 7 2 Contact Operation in Power Failure Contact output Terminals Operation Maintenance output Closed FALI output Open AUX output Closed Range output Closed Open Open T071401 EPS IM 12E04A03 02E 7 MAINTENANCE 7 15 Standard Formazine Solution The formazine solution used for calibrations must be prepared by diluting the 4000 NT
121. ilure If the reference signal from the detector is out of the permissible range this item is detected The permissible range is approximately 0 5 V to 2 45 V across terminals S2 and AG PROGRAM2 Zero calibration range exceeded IM 12E04A03 02E Detected when the input value in zero calibration is out of the permissible range The permissible range is 100 mV When calibration is carried out T51001 EPS 5 1 5 2 Detected item Table 5 1 Failure Detection Function second page of 2 pages Details Generation mode Detection on off setting Mode FUNCTION 10 Span calibration range exceeded Detected if the input value in span calibration is out of the permissible range For span calibration standard solution reference the permissible range is 50 to 400 For span calibration sensitivity correction the permissible range is 0 25 to 4 00 For details see section 5 3 3 When calibration is carried out 11 Zero shift calibration range exceeded Detected if the zero correction coefficient in zero shift calibration is out of the permissible range The permissible range is 9 NTU When calibration is carried out 12 Calibration plate failure Detected if the input value in span calibration is out of the permissible range The permissible range is 50 of the calibration plate setpoint When calibration is carried out
122. ing RI REMOTE ANALOG O Remote range OUTPUT selection R2 contact input Maintenance contact output Failure contact A2 Range contact ANSWER output output To power supply Upper and lower limit alarm or automatic cleaning and zero calibration contact DIGITAL output Digital output RS 232 C Ground To power supply F33001 EPS Figure 3 5 Wiring Diagram 3 8 IM 12E04A03 02E 3 INSTALLATION PIPING AND WIRING Wiring terminal block T External wiring cable connection 5 places F33002 EPS Figure 3 6 Converter External Wiring Terminal Block and Cable Connections For each cable wiring refer to figure 3 5 and 3 6 wiring diagrams in the section 2 9 Note Be sure to insert cable glands with blind plugs into the unused cable connections 3 3 1 Wiring between Converter and Detector Connect the converter to the detector with the dedicated cable that was already con nected to the detector when it was delivered Remove the drip proof cap plug capped in a cable gland of the converter and connect the other side of the cable to the converter 3 3 2 Wiring between Converter and Valves SV1 2 when Using Automatic Cleaning Function When using the automatic cleaning function wiring from converter
123. ion Installation location Indoors for outdoor installation separate rain proofing measures are required Mounting Separate Detector and Converter Units pipe or rack mounting Piping Connections for Detector Measuring water ID 25 mm hose connecter Drain ID 25 mm hose connecter Cable Inlet Port 8 cable glands bottom of the converter Conforming Cable OD 6 to 12mm dia without SV2 SV3 SV4 6 5 to 7mm dia for SV2 SV3 SV4 Type of Wiring power analog output digital output contact output contact input output for solenoid valves SV1 to SV4 ground use the converter connecting terminal ground or ground terminal located outside the case Measuring Water With Sampling System Flowrate 1 5 to 2 l min Temperature 0 to 50 degC but with ambient temperature at 30 degC or less Zero calibration water Water Qality 1 micron filtering water Flowrate 1 5 to 2 0 l min Temperature 0 to 50 degC but with ambient temperature at 30 degC or less Cleaning water for the system with sampling system Water Quality Turbidity 2 NTU or less tap water Temperature 0 to 50 degC but with ambient temperature at 30 degC or less Flowrate 3 to 6 l min Power Supply 100 110 V AC 50 60 Hz or 200 220 V AC 50 60 Hz Supply voltage Single Detector and Converter Units 70 VA or less With Sampling System 250 VA or less for full loading of recom mended automatic cleaning and zero calibra tion IM 12E04A03 0
124. ion key of the converter to manipulate SV1 SV2 SV3 and SV4 3 Loosen the vent plugs at the top of zero turbidity filters and vent them until tap 4 5 water overflows from them Then tighten the plugs Loosen screw A at the lower part of the detector and open the upper part as shown in Figure 4 1 Open V3 and feed the zero calibration water to the head tank deaeration tank Adjust the opening level of V3 so that the feed flow rate of the zero calibration water to the head tank may be regulated at 2 to 3 L min See note 3 below for how to check the flow rate Note 3 how to check flow rate of feed to head tank Fully open valve V5 or SV1 below the head tank and measure the amount of discharge from the tank s drain outlet for 1 minute using a graduated measuring cylinder or beaker Be sure to shut the valve after checking the discharge flow rate 6 Check whether the flow rate of feed to the detector is within 1 5 to 2 L min If the flow rate exceeds this range adjust it according to the procedure described in Section 4 1 5 See note 4 below for how to check the flow rate of feed to the detector Note 4 how to check flow rate of feed to detector While feeding the measured water or zero calibration water to the detector disconnect the pipe from the measured water outlet of the detector and measure the amount of discharge from the outlet for 1 minute using a graduated measuring cylinder or beaker Be sure to connect
125. it is reached it returns to the most significant digit 4 Press the ENT key 0004 0 time The entire display flashes once If the setpoint in step 4 is beyond the permissible range not is displayed Reset the message using the gt key and repeat the operation from step 2 2 Selection of Contact Output Operation open closed FUNCTION C to FUNCTION F Select open or closed for the contact output when operated Table 6 13 shows the types of contact outputs and corresponding functions Table 6 13 Contact Outputs and Operating Functions Upon shipment f Contact output FUNCTION Output terminal rom the factory Maintenance contact output Closed FAIL contact output Open Upper and lower limit alarm contact output Open Contact output during automatic cleaning Closed and automatic zero calibration T060702 EPS The following shows an example of the setting operations for the maintenance contact output Similar operations apply to the other settings Example of display 1 Select FUNCTION C in the lt PROGRAM2 gt _ _1 Open mode The current set status is displayed 2 Press the gt key to select the setting codes __2 Closed woh 58 Open Closed F060701 EPS 3 Press the ENT key to enter the setting 2 The display flashes once IM 12E04A03 02E 6 47 6 48 3 Selection of Execution Stop of the Failure Detection Functions FUNCTION 1 to
126. ital range information is output only once see Section 2 1 Digital Communication Specifications When the turbidimeter is used with auto range the output should be set as shown below 1 Set the Low side of the setting to 0 display is L00 00 2 Set the High side of the setting so that range 1 S range 2 S range 3 holds 3 If two ranges are required set range 2 range 3 4 If one range is required set range 1 range 2 range 3 5 4 IM 12E04A03 02E IM 12E04A03 02E 5 FUNCTIONS Range switching timing in auto range should be taken as follows 1 The timing of switching from a lower range to a higher range is a point where the measured value just becomes larger than the auto range switching point of the lower range 2 The timing of switching from a higher range to a lower range is a point where the measured value just becomes smaller than 10 of the auto range switching point in the lower range 10 is provided for range switching hysteresis Note Auto range switching should be set in item 7 When the turbidimeter is shipped from the factory this is set to 80 of the range In auto range the output ranges are switched for contact inputs R1 R2 and R3 1 No contact input Output range 1 2 Contact input R1 R2 Closed Output range 2 3 Contact inputs R1 R3 Closed Output range 3 5 5 5 2 2 Other Functions Related to Output Table 5 3 shows other functions related to analog
127. l SV4 l Zero water i L l One calibration cycle l J HOLD ON a ee Output hold t 1 bei Zero calibration computation 1 During calibration the output is always in the hold state The display is also set to be held using FUNCTION 8 in the lt PROGRAM1 gt mode Contact outputs C1 and C2 can be used as contacts for the period during cleaning and calibration This can be set using FUNCTION E in the lt PROGRAM1 gt mode Note 1 N Number of cleaning repetitions Note 2 One automatic zero calibration cycle N draining filling cleaning 2 draining filling relaxation F42301 EPS Figure 4 9 Automatic Zero calibration Time Chart IM 12E04A03 02E 4 13 5 FUNCTIONS 5 FUNCTIONS This chapter describes the functions of the converter For each function the relevant items are arranged For the setting procedures see Chapter 6 the operation procedure for each FUNCTION in each mode 5 1 Functions Related to Failure Detection Table 5 1 shows the failure detection functions Table 5 1 Failure Detection Function first page of 2 pages Detected item 1 Turbidity overrange Details This is detected if the measurement signal from the detector is out of the permissible range The permissible range is approx 0 5V to 2 45 V across S1 and AG terminals in the converter Generation mode Error No FAIL lamp Detection on off setting Mode FUNCTION PROGRAM2 Lamp di
128. low 3 Piping for Zero Calibration Water As the zero calibration water tap water is filtrated and fed to the detector As with the measured water the zero calibration water must also be connected to the head tank to meet the requirement of the flow rate of the water fed to the detector Provide a switching valve on the inlet of the head tank described in Item 1 and connect the zero calibration water pipe to the valve so as to allow feed to the head tank to be switched over between the measured water and zero calibration water To use tap water for zero calibrations it should be filtrated with a 1 micron micro filter However if the measuring range is greater than 200 NTU tap water can be used For the specifications required for the micro filters see Section 1 3 4 Piping for Cleaning Water A plug is equipped at the cleaning water inlet of the detector For connection of the cleaning water pipe see Section 3 2 2 5 Precautions for Piping IM 12E04A03 02E For all connections to the detector be sure to use the black soft PVC tube O D 33 I D 25 mm that comes with the TG450G to shield them from light For other portions of piping hard or soft PVC pipes are recommended For measured water and zero calibration water pipes avoid clogging and bubbles from collecting inside the pipes by preventing as much as possible kinks or water becoming trapped 3 5 3 2 2 When Using TB450G with Sampling System Refer to the
129. ltage failure detection Stop function Selection of execution stopping of end ON OFF Execution of lamp life detection function Stop Selection of execution stopping of ON OFF Execution automatic calibration failure detection Stop function Selection of execution stopping of upper ON OFF Execution and lower limit alarm detection function Stop 1 Effective with automatic cleaning 2 Effective with automatic cleaning and calibration Note 1 The values in the initial value column are those given when the memory storing the data is initialized These may be partially different from the values set upon shipment from the factory is displayed Note 2 If an unused function code is selected Note 3 If a value out of the set range is entered not is displayed Pressing the gt key restores this indication to the data display T060205 EPS IM 12E04A03 02E 6 7 6 3 Key Operation 6 3 1 Mode Switching The current operation mode is indicated by the lit mode indicator lamp The operation modes are switched in turn as shown in Figure 6 2 every time MODE key is pressed However if a function code other than 1 is selected in each mode that mode is not changed by the first key operation but the function code only returns to 1 H lt MEAS gt lt MAINT gt M lt PROGRAM 1 gt lt PROGRAM 2 gt F060301 EPS Figure 6 2 Mode Switching by MODE Key Operation 6
130. n the zero shift calibration function see Section 5 3 3 The following is the setting key operations Example of display j Select FUNCTION B in the lt PROGRAM1 gt 00 000 NTU gt mode If the display is only to be confirmed operations of 2 3 and 4 are not necessary 2 Press the gt key 00 000 NTU The most significant digit flashes 3 Select a digit with the gt key and set it to the 00 050 NTU desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set value gt 00 050 NTU The entire display flashes once In step 4 if the set value is beyond the permissible range 9 NTU not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 IM 12E04A03 02E 6 33 10 Setting Sensitivity Correction Factor FUNCTION C The sensitivity correction factor obtained in span calibration with sensitivity correction FUNCTION 5 in lt MAINT gt mode can be displayed or directly changed For details on span calibration function see Section 5 3 3 The following is the setting key operations Example of display e Select FUNCTION C in the lt PROGRAM gt 1 0000 mode If the display is only to be confirmed operations 2 3 and 4 are not necessary 2
131. nction using the MODE key or FUNC key In this case the solenoid valve automatically returns to the status at the start of measurement 7 Manual Start of Automatic Calibration FUNCTION 7 This is the operation to manually start the automatic calibration operation For specification of automatic calibration this function can be used For details on automatic calibration see subsection 4 2 3 The following is the procedure for this function Example of display 1 Select FUNCTION 7 in the lt MAINT gt A CAL is displayed mode 2 Press the ENT key The CAL lamp flashes and automatic calibration starts 3 The predetermined calibration operation is carried gt The turbidity value is out displayed during cleaning 4 Termination If cleaning is to be repeated operate End is displayed The from step 2 again CAL lamp goes out Even if contact output during automatic cleaning and calibration is selected as an auxiliary contact output the contact is not actuated in a manual start of the automatic calibrating operation A digital output is also not sent out During calibration the calibration operation can be stopped if the mode or the function is moved to another mode or function using the MODE key or FUNC key In this case the solenoid valves automatically return to the statuses at the start of measurement If a similar operation is performed after completing the calibrati
132. nd automatic zero calibration in lt MEAS gt mode The following shows the setting key operations Example of display 1 Select FUNCTION 8 in the lt PROGRAM gt gt OFF stop mode The current set status is displayed 2 Press the gt key to select on or off ON execution C ON OFF E F060601 EPS 3 Press the ENT key to enter the setting gt ON The display flashes once 22 Selecting sampling specifications automatic cleaning automatic zero calibra tion FUNCTION 9 Select sampling specifications Table 6 11 Sampling system and Settings Sampling specification Setting code Without sampling system With sampling system without automatic cleaning and automatic zero calibration With sampling system and automatic cleaning With sampling system and automatic cleaning and calibration T060603 EPS If a change is necessary perform the key operations in the following procedure Example of display 1 Select FUNCTION 9 in the lt PROGRAM gt gt __3 mode The current set code is displayed 2 Press the gt key to select the setting code gt __2 _l as _ 2 ee __3 FO60604 EPS 3 Press the ENT key to enter the setting 5 2 The display flashes once IM 12E04A03 02E 6 41 23 Selecting Execution Stop of Automatic Cleaning Function FUNCTION A Y __21 __3 This function selects execution stop of the automatic cleaning function started with
133. nd the measuring surface edge are washed out by spouting cleaning water tap water out of two outlets on the side of the measuring cell in the detector After cleaning dirt on the measuring cell deforming tank and in the piping between the deforming tank and the detector is washed out by opening the drain outlet of the deforming tank The above cleaning operation is repeated a predetermined number of times The information of start or end is output to the output when automatic cleaning is started or ended Refer to 2 1 Digital Communication Specifications In addition there are two types depending on the specifications for automatic cleaning With automatic cleaning With automatic cleaning and automatic zero calibration Note This function is available when parameters of sampling function on the converter is specified for the system with automatic cleaning function or automatic zero calibration The explanation for each types are followed a With Automatic Cleaning refer to 2 8 2 Piping Diagrams Automatic cleaning can be started in the following two ways Startup with the internal timer Startup with FUNCTION 6 in the lt MAINT gt mode see Section 6 5 Note Startup with the internal timer can be selected for execution on stop off using FUNCTION A in the lt PROGRAM gt mode It has been set to execution on when shipped from the factory The internal timer operation is shown below The automat
134. nput resistance when off 100 k ohms or more Converter S1 Output range 1 RIO S1 p g s2 S2 Output range 2 RRO O S3 Output range 3 R3 3 O Switch Remote range switching usage EE Converter Functions Display Functions Data LED display turbidity lamp voltage current detected by the turbidity element voltage detected by the reference element analog output analog output mA zero error slope Running operation Lamp lit mode display characters in relief other than mode display lt MEAS gt mode lt MAINT gt mode lt PROGRAM 1 2 gt mode output signal hold under calibration in cleaning mode error occurrence System operation Characters in relief Lamp and each solenoid valve Maintenance Functions lt MAINT gt mode Zero calibration shift calibration span calibration sensitivity correction calibration automatic cleaning manual start automatic zero calibration manual start error code display error reset lamp control and reference value calibration 2 4 Setup functions lt PROGRAM 1 gt mode Output range setting average coefficient setting failure output setting line segment approximation output setting upper limit alarm setting lower limit alarm setting and bubble retardant setting lt PROGRAM 2 gt mode Time setting for automatic cleaning time setting for automatic zero calibration and selection of execution stopping of failure detection funct
135. of the motor operated valve s is assumed Replace the motor operated valve s with good one s T080106 EPS IM 12E04A03 02E Table 8 1 Motor operated Valve Connection Terminals Terminal Valve Function sv1 Pinch valve Open closed COM SV3 Motor operated valve lt Example of operation gt Open Closed COM SV1 open Across V1 and V3 Power supply voltage output SV1 closed Across V1 and V3 0 V output SV3 open Across V4 and V6 Power supply voltage output Across V5 and V6 0 V output SV3 closed Across V4 and V6 0 V output Across V5 and V6 Power supply voltage output 11 FAIL Lamp Is Lit and Other Lamps and Displays Are All Off This shows a CPU failure occurrence For confirmation turn off the power one time and then turn it on again If the CPU fails the FAIL Iamp immediately lightts up After confirmation request checking and or repair of the CPU board IM 12E04A03 02E 8 TROUBLESHOOTING T080107 EPS 8 5 8 2 FAIL Lamp Not Lit If an indication failure occurs that the self diagnostic function cannot detect check it by Phenomenon for failure a Turbidity reading does not change 1 2 referring to Table 8 2 Table 8 2 Phenomena for Failures and their Causes and Countermeasures Estimated cause Failure of the measuring light receiving element in the detector Clogging in the piping between the detector and the defoaming tank If the tu
136. oft PVC tube O D 33 I D 25 mm that comes with the TG450G Prevent clogging and bubbles from collecting inside the tube by cutting the tube to an adequate length to ensure that no bends occur or water or bubbles become trapped 90 40 Head Tank Cover Inlet 9165 D approx 22mm p 01548 Overflow Hole for Air Exhaust 951 1 D 48mm 15 4 i A Ks Outlet D approx 48mm BEE 205 195 160 128 NUE 105 26 175 V To Detector lt i for 1 D 25mm j F hose connecter Measuring Water Inlet Overflow outlet 1 D 15mm for Tube Outlet 1 D 19mm for 1 D 25mm Tube for Silicon tube F32101 EPS Figure 3 3 External Dimensions of Head Tank 3 4 IM 12E04A03 02E 3 INSTALLATION PIPING AND WIRING Overflow 2 Drain Piping 87 5 32 sacs 7128 7 mi me F32102 EPS Figure 3 4 Relationship between Positions of Head Tank and Detector Connect the piece of the black soft PVC tube O D 33 I D 25 mm that comes with the TG450G and place the other side of the tube in a drain ditch or the like When laying the tube be careful to lay it in such a way that no bends occur or water or bubbles become trapped Water trapped in the drain pipe may cause the detector s measuring cell to overf
137. on computation that calibration becomes effective IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 8 Reference Sensitivity Calibration FUNCTION 8 The reference sensitivity is determined in this operation using the standard solution upon the shipment from the factory The sensitivity obtained at that time is the basis for an abnormal sensitivity check at normal span calibration and for the sensitivity slope display Usually this function is not used except upon shipment from the factory The valve operations and supply procedures for the standard solution are the same as those at span calibration For details see Section 7 7 The following is the procedure for this function Example of display Select FUNCTION 8 IN the lt MAINT gt gt 0105 0 NTU mode 2 Wait until the display becomes stable and then 0105 0 NTU press the ENT key The CAL lamp flashes 3 Press the gt key 00000 NTU The display is not ready for determination of the decimal point position 4 Press the gt key to determine the position of the 000 00 NTU decimal point Every time the key is pressed the decimal point moves to the right and when the least significant digit is reached it moves to the second digit from the left 5 Press the ENT key 0000 0 NTU The second digit from the left flashes and waits for the turbidity setting 6 Select a digit with the gt key and set
138. ons of the product in detail and not to warrant that the product match to each customer s requirement e Do not reprint or duplicate any part or all of this book without YOKOGAWA s permission e The content of this book may be altered without notification e We made our best effort to complete this book however if you find any questionable matters error or insufficient description please contact our agent nearby or our sales division Notice about protection safety and changing of our product e For protection and safety of the product and the system controled with the product operate the product in compliance with the safety instructions in this book e Any protection or safety circuit adapted to the product or the system controled with the product must be installed separately outside of our product Do not make any modifi cation of the product to install them inside the product Exemption from responsibility with the product e We do not warrant our product except as provided in the warranty clauses e We do not have any responsibility for direct or indirect damages of the customer or any third party caused by using our product or unexpected fault of our product ii IM 12E04A03 02E Contents A JEIAARO LICEAT 1 EPIO AE TE EAE EE E EAE A EE Notation eseseseseseseseseseseseeeseeeceeocoeocococococececeeeeeeeeeesesesesesesesosososososososososoeoeoesesesesesesesesesesesese NOTATION r a e a ead a peel et ei es
139. or automatic zero calibration see Section 4 2 Table 6 15 Valve Statuses in Each Operation Sampling Operation specifications set codes Open Measurement os Open Open Closed Closed Closed Open Open Open Closed Closed Closed Closed Closed Open Closed Closed Closed Closed Closed Closed Closed Open Open Open Open OpenClosed Open Closed Closed Closed Closed Closed Open Zero calibration with zero water 1 2 Open Closed Open Open Open Open Closed Closed Closed Closed Closed Closed Open u Open Manual cleaning measuring water N Open Open Closed Closed Open Open Open Open Closed Closed Open Closed Open Open Closed Closed Closed Open Manual cleaning zero water M wo Open Open Open Open Open Open Closed Closed Open Closed Open Closed Open Note Valves SV1 to SV4 are opened or closed with each SV1 to SV4 key in the lt MAINT gt mode IM 12E04A03 02E T060801 EPS 6 49 7 MAINTENANCE 7 MAINTENANCE This chapter describes the inspection and maintenance implemented to maintain the instrument in good operating condition 7 1 Items of Inspection and Maintenance and Their Peri ods IM 12E04A03 02E Table 7 1 shows the main inspection and maintenance items to maintain the inst
140. or shortcircuiting between the converter and a As the lamp power supply circuit detector connection terminals P1 and P2 has the function of overcurrent protection if shortcircuiting is eliminated the lamp voltage is restored by itself 3 Check for loosening of the primary and secondary b If there is loosening due to poor connectors CN7 and CN8 of the lamp power contact the lamp voltage is transformer in the converter restored by itself by re inserting the connectors c If there are no problems in checking a and b a failure of the lamp power supply circuit on the converter analog board is assumed Request checking and or repair of the analog board T080103 EPS 4 Err14 A D circuit failure Occurrence A failure of the A D conversion IC or the measurement and comparison input circuits is assumed Request checking and or repair of the converter analog board 5 Err15 memory comparison failure Occurrence A data memory IC EEPROM failure is assumed Request checking and or repair of the converter CPU board A CAUTION If the power is turned off with a memory comparison failure generated the stored data are initialized when the power is turned on again If initialization is performed re setting of necessary data zero and span calibration for the input circuit lamp control reference value calibration and turbidity zero and span calibration are required If data cannot be properly written into the memor
141. orming cleaning with the manual start function of automatic cleaning me Select FUNCTION 6 in the lt MAINT gt mode gt JEt is displayed 2 Press the ENT key Automatic cleaning starts 3 After cleaning is completed allow zero water to flow for about 30 minutes to run in the filter For valve statuses see Table 6 15 4 Select FUNCTION 1 in the lt MAINT gt mode gt Turbidity value is displayed 5 Wait until the reading becomes stable and then press the ENT gt and ENT keys in this order to calibrate the meter 6 Finished 3 For specification without automatic cleaning or automatic zero calibration See 2 8 1 After performing manual cleaning allow zero water to flow for about 30 minutes to perform zero calibration 1 Select the lt MAINT gt mode and open the valves so they are set to drain for valve statuses see Table 6 15 2 After draining off the measuring water allow zero water to flow for valve statuses see Table 6 15 3 Open valve V4 with zero water flowing and let cleaning water flow for about 30 seconds 4 Close valve V4 and open valve V5 to drain off the water 5 Close valve V5 after about 10 seconds 6 Repeat operation steps 3 to 5 several times depending on the degree of contamina tion 7 Let zero water flow for about 30 minutes to run in the filter 8 Select FUNCTION 1 in the
142. procedures on the connecting side to the converter are shown below 1 Strip off about 40 mm of the insulation covering and shield from the cable end and solder a leadwire to the root of the exposed shield Protect the soldered part with wound insulation tape 2 Make the soldered leadwire length almost the same as other conductor lengths and attach crimp terminal lugs conforming to an M4 4 mm screw to the tips of each conductor and this leadwire 3 Connect the cable to the converter terminals TD RD DG and G Connect the conductors as shown in Figure 3 7 Do not ground the shield on the receiving side Converter Receivine equipment F33601 EPS Figure 3 7 Wiring diagram for digital output IM 12E04A03 02E 3 11 3 3 7 Contact Input Remote Range Swtiching and Contact Output Range Output Wiring If necessary As output ranges three types of ranges can be set and output can be obtained by freely switching these ranges The output range selection is remote local or auto mode This wiring is applied if the range is changed in remote mode see Section 6 6 12 or the range contact output is used Use a 2 conductor cable of finished OD 6 to 12 mm for the wiring However use a 3 conductor cable when remote range selection only is used and a 4 conductor cable when only range contact output is used The on and off contact statuses are identified with the resistance value conditions shown
143. processor offering advanced performance and high reliability Enhanced self diagnostics functions including lamp burn out detection converter check and upper and lower limit alarm detection Variable output ranges from 10 NTU to 2000 NTU Use of the Right angled Surface Scattering light measuring method means that the optical system is free from contamination due to the suspension in the measured water Features a signal smoothing function and countermeasures against bubbles to reduce the effect from bubbles Extensive functions automatic cleaning automatic zero calibration and more available with optional pinch and solenoid operated valves added to the sampling system F101 EPS Figure 1 1 TB450G NTU compliant Surface Scattering Type Turbidity Meter IM 12E04A03 02E 1 1 1 1 System Configuration An NTU compliant Surface Scattering type turbidity measuring system is usually composed of a detector a converter and a sampling system that feeds the measured water zero calibration water and cleaning water The TB450G is offered not as a system but as components a detector and converter and can be combined with a desired sampling system to configure a turbidity measuring system The inclusion of a pinch valve and solenoid operated valve in the sampling system provides automatic cleaning and automatic zero calibration functions The following outlines typical system configurations employing a TB450G For details of the d
144. rbidity reading is fixed to 0 00 NTU and thus does not change it is assumed that 0 00 NTU was entered in reference sensitivity calibration Checking and disposition Conform the reading using the calibration plate If there is no change a failure of the measuring preamplifier in the detector is assumed Request checking and or repair Open the detector and if measuring water does not flow through the measuring cell check the piping and clean it if there is clogging Carry out reference sensitivity calibration using the calibration plate b Fluctuation of turbidity reading is large 2 Unsuitable measuring water flowrate Shift of level adjustment for the measuring cell water surface Turbidimeter not securely fixed Large vibrations in surroundings The reading may fiuctuate due to suspended substances in the sample water Open the detector and if the water surface is not like a mirror finish adjust the flowrate Check the level adjustment Confirm the tightness of the anchor bolts or the like Change the signal averaging coefficient greatly If the vibrations are violent change the installation location Greatly change the signal averaging coefficient c Abrupt change in turbidity reading Poor contact in wiring between the converter and detector Influence from air bubbles Re tighten the connection terminal screws of the converter and detector Greatly change the signal averaging coefficient
145. rectly changed using FUNCTION C in the lt PROGRAM I gt mode Valve statuses in the operation of this function are the same as those in the measurement status Example of display 1 Select FUNCTION 5 IN the lt MAINT gt gt 0105 0 NTU mode 2 Wait until the display becomes stable and then 0105 0 NTU press the ENT key The CAL lamp flashes 3 Press the gt key 00000 NTU The display is now ready for determination of the decimal point position 4 Press the gt key to determine the position of the 000 00 NTU decimal point Every time the key is pressed the decimal point moves to the right and when the least significant digit is reached it moves to the second digit from the left 5 Press the ENT key 0000 0 NTU The second digit from the left flashes and waits for the turbidity setting 6 Select a digit with the gt key and set the desired gt 0100 0 NTU turbidity value using the A or v key Every time the gt key is pressed the flashing digit moves to the right and when the least significant digit is reached it moves to the second digit from the left 7 Press the ENT key to terminate calibration 0100 0 NTU The entire display flashes once and the CAL lamp goes out If the turbidity value set in step 7 exceeds the permissible setting range 0 to 2200 NTU not is displayed In this case the FAIL lamp is not lit and a FAIL contact is not outpu
146. roof for outdoor use Materials Body and ball Hard PVC Sheet PTFE Seal EPDM Ambient temperature 20 degC to 60 degC 2 Piping for Tap Water 3 Drain Piping IM 12E04A03 02E Piping for tap water denotes piping for feeding cleaning water and zero calibration water to the detector Use tap water as the cleaning water Connect polyethylene or polypropylene tubes of O D 8 mm and I D 6 mm to the Rc1 4 cleaning water ports on the sides of the detector using adequate fittings When using the automatic cleaning function of the TB450G refer to Sections 2 8 2 and 2 8 3 and provide the solenoid operated valve SV2 for the cleaning water pipe Tap water filtrated by micro filters is used as the zero calibration water For the piping method see Item 3 in Section 3 2 1 When using the automatic calibration function of the TB450G refer to Section 2 8 3 and provide the solenoid operated valve SV4 in the zero calibration water pipe Note Do not use transparent or semitrans parent fittings for connecting tubes to the detector The following shows the recommended specifications of solenoid operated valves SV2 and SV4 Solenoid valves SV2 SV4 Type Two port solenoid operated directional valve Applicable fluid Water Working pressure 0 to 1 5 MPa Withstanding pressure 5 0 MPa water Fluid temperature 1 to 60 degC Cv 0 8 Process connections Rce3 8 Power supply As specified for TB450G Maxim
147. rument in good operating condition and their recommended periods before inspection or maintenance As these periods vary with each operating condition use Table 7 1 only as a guide Table 7 1 Guide for Inspection and Maintenance Periods Inspection or maintenance item Washing with cleaning water Cleaning of measuring cell Cleaning of deforming tank Lamp replacement Zero calibration Span calibration Cleaning of lenses Filter replacement Fuse replacement Cleaning of piping Checking of flowrate and water level Silicon tube in the case of pinch valve use Period between inspections or maintenance On occasion One week One month Half a year One month One month Half a year One year 1 One year Half a year One month One year T070101 EPS This is a guide for the replacement period if the meter is operated at a flowrate of 2 l min using tap water having an average turbidity of 0 4 NTU 7 2 Washing With Cleaning Water For the specification without automatic cleaning washing is carried out by opening and closing the valves manually 7 2 For the specification with automatic cleaning automatic cleaning washing is per formed periodically For the automatic cleaning operation see Subsection 4 2 2 Here washing of the instrument with the specification without automatic cleaning is described In this case washing is carried out by manually operating valve V4 for cleaning 1 2 Note
148. ry 3 repetitions for cleaning calibration ratio B 3 Measurement start 1 Cleaning Cleaning Calibration Cleaning Cleaning Calibration Aac eea ea ea Aa Aa ee ee B 0 3 1 Measurement start is defined to be the point specified in the following Other mode gt lt MEAS gt mode Power off Power on lt MEAS gt mode Raee0s EPS Figure 4 7 Cleaning Calibration Period Ex for cleaning calibration ratio 3 However if startup of the automatic zero calibration with the internal timer is stopped the cleaning operation becomes the same as in Figure 4 5 because the automatic zero calibration operation is eliminated IM 12E04A03 02E IM 12E04A03 02E 4 OPERATION Figure 4 8 shows the automatic cleaning operation time chart and Table 4 3 the settings lt Valves used gt SV1 Drain valve SV2 Cleaning water valve SV3 Measuring water valve SV4 Zero water valve lt Time chart gt Cleaning start Draining time 2 N number of cleaning repetitions 4 example Measuring water i Water filling time 2 Water filling time 2 A Cleaning time 2 Relaxation time ce SENE a i i ON sv1 Draining H sv2 Cleaning H ON SV3 i a Oe Zero water One cleaning cycle me gt HOLD Output hold a OFF 1 During cleaning the output is always in hold state The display is also set to be held using FUNCTION 8 in the lt PROGRAM1 gt mod
149. s been performed using a formazine solution at the factory before shipment 2 Calibration Disk A calibration disk used for span check during scheduled maintenance comes with the TB450G Note The turbidity values shown on the calibration disk which comes with a TB450G has been scaled for that particular TB450G after performing zero and span calibrations This means that the calibration disk cannot be used for another turbidity meter When using two or more turbidity meters make sure that only the disk that comes with each turbidity meter is used Also be extremely careful when handling the calibration disk as damage to the surface of the disk or stains on the disk make its use for calibrations invalid 1 6 IM 12E04A03 02E 2 SPECIFICATIONS 2 SPECIFICATIONS 2 1 Standard Specifications Object of Measurement turbidity of water in filtration plants and distribution systems sewage plants rivers and general industrial processes Method of Measurement measurement of scattered light Range of measurement 0 10 NTU to 0 2000 NTU Display 4 digit LED display resolution of 0 01 NTU maximum indication of 2200 NTU Unit of Display gt NTU Output Range selectable in 3 ranges Remote selection local selection standard optional Auto range manual range standard optional For auto range therange switching point is settable Can be set to any range within the whole range of measurement However
150. s changed maintenance MAINTENANCE Cel measurement MEASURE CRLF Error Signal continuously transmitted if a failure occurs If there is more than one error they are transmitted in succession ERR OO Crlp OO Error number 11 12 13 14 15 18 25 and 26 Ex 1 ERR11 Cele Ex 2 ERR11 _ ERRI8 Cele For a _ blank a space code is transmitted Data Update Period approx 1 second Cable Length up to 10m Contact Output maintenance output in maintenance failure output in failure detection range output corresponding to the output range selected COM common Either upper and lower alarm standard or automatic calibra tion or cleaning optional 2 2 IM 12E04A03 02E IM 12E04A03 02E 2 SPECIFICATIONS Contact status at power off Non operational Operational Contact status at power on Note Type of contact output Maintenance Closed Closed Fail Open Open Upper and lower limit alarm Closed Automatic zero calibration and Closed automatic cleaning Note The contact output status at power on open closed can be changed 721001 EPS Contact Rating maximum open close voltage 250 V AC or 220 V DC resistive load maximum permissible current 2 A AC or 2 A DC resistive load maximum open close capacity 125 VA or 60 W resistive load Contact Input remote range selection COM common input resistance when on 200 ohms or less i
151. s ii Notice about this manual book seessssessesseeesssresssessrsrestrresrerrsseerssrssesresesrenrerenseerrsreresee ii Notice about protection safety and changing of our product eesseeseeeeereeeresesereeeee ii Exemption from responsibility with the product s sssssesesesesserseseessesessrsesseeeesereesees ii 1 1 System Configuration sies sseri espi erep sasien ieaoo te resson ie as SEE iE ea 1 2 1 1 1 Configuration with Only TB450G Converter and Detector 0 0 1 2 1 1 2 Configuration with Sampling System o0 eee cee ceeeceeeeteeeeeneeee 1 2 1 1 3 Configuration with Sampling System and Automatic Cleaning System 1 3 1 1 4 Configuration with Sampling System Automatic Cleaning System and Automatic Zero Calibration System oo eee eee cee ceeceseeeceseeseeneensees 1 3 1 2 Operating Principles vii ce Rca Reena a ead ede oats 1 4 1 3 Turbidity Standatd sic 2 chicc6sn a csas te dvee tenet cathe asc ds teia denen 1 6 1 3 1 Standard Water for Zero Calibration eee cee cee cee ceseeeeeeseeeeeeeeees 1 6 1 3 2 Standard Water for Span Calibration 00 0 ceeeseceeceeeceeceseeeeeeeeees 1 6 2 SPECIFICATIONS sesessesesesesoeoososoeoesosoeoosoroeoesosoeoosoeoeoesocoeoosoeoesecosoeoosseoeseee 2L 2 1 Standard Specifications eee cece ces ceeeceeeeeeeeeeeeeeeeeeseeeseeseecaecaecaessaeenees 2 1 22 Character SE OS a na r E E A Saets Ws E ea geese senda eseeesonses 2 6 2 3 Model and Suffix Cod s sinies nenese
152. sconnection This is detected if the lamp goes off and the reference signal drops to approximately 0 5 V or less PROGRAM2 Lamp voltage failure This is detected if the lamp voltage is out of the permissible range The permissible range is approximately 3 V to 6 5 V across terminals P1 and P2 in the converter PROGRAM2 AD circuit failure 1 Detected if analog to digital conversion is not completed in the predetermined time 2 If the converted data are out of the permissible range this is detected if the input is switched to a simulated input and the converted data are again out of range All modes PROGRAM2 Memory comparison failure Data such as setpoints are stored in two places in the EEPROM This is detected if the results of regular comparisons of such data do not agree All modes PROGRAM2 RAM failure Detected if the result of a comparison of specified data in writing and reading immediately after turning on power does not agree If detected subsequent operations cannot be accepted When power is turned on EEPROM failure Immediately after turning on power the data stored in two places in the EEPROM are compare If they do not agree this item is detected if the result of the comparison of specified data in writing and reading does not agree If detected subsequent operations cannot be accepted When power is turned on Reference signal voltage fa
153. t Reset the error message by pressing the ENT key and continue operation from step 2 Also check the ratio of the sensitivity correction to the current sensitivity If it exceeds the permissible range 0 25 to 4 Err22 is displayed The error message is reset by pressing the ENT key Perform operation from step 2 again IM 12E04A03 02E 6 17 6 Manual Start of Automatic Cleaning FUNCTION 6 This is the operation to manually start the automatic cleaning operation For specifi cation of automatic cleaning this function can be used For details on automatic cleaning see Subsection 4 2 3 The following is the procedure for this function Example of display 1 Select FUNCTION 6 in the lt MAINT gt gt JEt is displayed mode 2 Press the ENT key The WASH lamp flashes and automatic cleaning starts 3 The predetermined cleaning operation is carried A turbidity value is displayed out during cleaning 4 Termination gt End is displayed The If cleaning is to be repeated operate from step 2 WASH lamp goes out again Even if contact output during automatic cleaning and calibration is selected as an auxiliary contact output the contact is not actuated in a manual start of the automatic cleaning operation A digital output is also not sent out During cleaning the clean ing operation can be stopped if the mode or the function is switched to another mode or fu
154. t Range Selection Table 5 2 Function Related to Output Range Selection Detected item Details FUNCTION 1 Output range 1 setting The upper and lower limits for analog output 1 are set PROGRAM1 2 Output range 2 setting The upper and lower limits for analog output 2 are set PROGRAM1 3 Output range 3 setting The upper and lower limits for analog output 3 are set PROGRAM1 4 Auto range selection The function that automatically switches the output ranges 1 2 and 3 depending on the turbidity value PROGRAM1 The function that switches the output ranges 1 2 and 3 5 Remote range selection by contact inputs R1 R2 and R3 when function PROGRAM1 4 is OFF The function that switches the output ranges 1 2 and 3 6 Local range selection using converter key operations when functions 4 and 5 are OFF PROGRAM1 7 Auto range switching The auto range switching point is arbitrarily set when point setting auto range is used PROGRAM1 T52101 EPS Corresponding to switching of the output range the range contact outputs A1 A2 A3 A4 are switched and the RNG1 RNG2 or RNG3 lamp is lit 1 Output range 1 Range contact outputs Al and A2 are closed RNG1 lamp is lit 2 Output range 2 Range contact outputs Al and A3 are closed RNG2 lamp is lit 3 Output range 3 Range contact outputs Al and A4 are closed RNG3 lamp is lit When the output range is switched dig
155. t this setting value Display and set the setpoint in the ratio to the analog output span The following is an example Example For a setpoint at 50 The output value holds at 12 mA when an error occurs The output value holds at 3 V when an error occurs The following is the setting key operation Example of display 1 Select FUNCTION 5 in the lt PROGRAMI1 gt gt 00000 mode 2 Press the gt key 00000 The most significant digit flashes 3 Select a digit with the gt key and set it tothe 00050 desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT I key to enter the set value 00050 The entire display flashes once In step 4 if the set value is beyond the permissible range 10 to 110 not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 6 27 6 28 4 Setting Line segment Function Output FUNCTION 6 Analog output can be provided in the form of a line segment Set the break point for such a line segment in this function A line segment is output being the set value percentage of the output range span as the break point at 50 of the output signal span 4 to 20 mA or 1 to 5 V For details on the function see Subsection 5 2 2 1 The following is the procedure
156. the following order Operation and checking procedure Failure section and disposition 1 Open the upper cover of the detector and confirm Ja If it is not lit a loosening of the whether the lamp is lit P1 and P2 converter and detector connection terminal screws is assumed gt Tighten them again securely 2 If there is no problem with the terminal screws being b If the resistance goes to infinity it loose disconnect the wiring to converter connection shows the lamp filament has terminals P1 and P2 and measure the resistance burned through between detector connection terminals P1 and P2 gt Replace the lamp with the spare lamp as an accessory gt After replacing the lamp perform lamp control reference value calibration and span calibration 3 If the lamp is lit measure the DC voltage across the c If the measured voltage is within converter connection terminals S2 and AG 0 5 V a failure of the lamp light quantity control receiving element is assumed Request checking and or repair of the control preamplifier T080102 EPS 8 2 IM 12E04A03 02E 8 TROUBLESHOOTING 3 Err13 lamp voltage failure Occurrence Carry out checking in the following order Operation and checking procedure Failure section and disposition 1 Measure the DC voltage across the converter connection terminals P1 and P2 and confirm that it exceeds the range of 3 to 6 V 2 Check f
157. the pipe to the detector s outlet again after checking the discharge flow rate Before operation always check the flow rate of feed to the detector as above For a flow rate check at regular maintenance visually check that there are no ripples on the water surface as shown in Figure 4 2 b IM 12E04A03 02E IM 12E04A03 02E Screw A F41401 EPS Figure 4 1 Lower Part of Detector There are ripples on the _ surface Measuring cell a Measurement is impossible The measuring surface is as we smooth as a mirror finish __ _ _ b Measurement is possible F41402 EPS Figure 4 2 Water Level of Detector 4 OPERATION 4 1 5 Adjusting Flow Rate of Feed to Detector Flow rate adjustment has been performed for the detector at the factory before shipment If flow rate adjustment is required as the result of checking the flow rate of feed to the detector in Section 4 1 4 carry out the follow procedure to perform adjustment 1 Open valve V5 or SV1 below the head tank to discharge water from the head tank and detector 2 When neither the zero calibration water nor measured water is being fed to the detector place a level at the drain outlet of the measuring cell and adjust the level by means of the 4 adjustment screws shown as C and B in Figure 4 1 so that the detector is level in two orthogonal directions See Figure 4 3 for how to turn these scr
158. ting Measurement When the MODE key in the converter is pressed to move to the lt MEAS gt mode the internal timer starts and analog output hold set when shipped from the factory is reset according to the predetermined specifications The maintenance contact outputs M1 and M2 also become open set when shipped from the factory and the mode information is output only once to the digital output see the contact output operation in Subsection 3 3 8 and digital communication specifica tions in Section 2 1 Table 4 1 shows the valve statuses in the lt MEAS gt mode Valves SV1 to SV4 automatically operate according to the predetermined specifications The statuses shown in Table 4 1 are those when no automatic cleaning or automatic zero calibration oper ates Table 4 1 Valve Statuses When Measurement Is Carried Out Diagram of aaa ee oe pe Lele le sor Sva S With With sampling system o e system See Section 2 8 1 Closed Closed Closed With sampling system and automatic cleanin i With sampling system automaticcieaning and automatic zero calibration system See Section 2 8 3 Open Open Open Open Closed Closed Open Closed T42101 EPS IM 12E04A03 02E 4 7 4 2 2 Automatic Cleaning Operation When automatic cleaning is added the detector is automatically cleaned in the lt MEAS gt mode With measuring water or zero water flowing dirty substances on the measur ing cell wall a
159. tions Table 5 8 Other Functions Converter checks It can be confirmed that the converter operates normally MAINT Setting of turbidity Setting of the average factor of turbidity indication analog PROGRAM1 signal average output factor T56001 EPS 5 6 1 Overview of the Option Bubble Retardant IM 12E04A03 02E Normally the turbidity indication changes to the positive side drastically like a step pulse waveform if air bubbles or dust arise on the light scattering surface of the detector s measuring tank The amount of such a sudden change is in no way uniform and depends on the size of air bubbles or dust and their behavior on the light scattering surface The TB450G NTU compliant surface scattered type turbidimeter can be equipped with a header tank for eliminating air bubbles This tank removes air bubbles such that they do not reach the detector In some cases air bubbles that grow in the piping between the header tank and the detector rise to the light scattering surface and drastically change the reading though this is quite rare The converter has a function for averaging turbidity signals where the degree of averaging can be varied as necessary It is therefore possible to counter small changes in the reading due to air bubbles or dust particles to some degree by increasing the averaging factor Making the averaging factor too large however will cause a proportional delay in the response of turbidity signals
160. tomatic cleaning and zero calibration functions the FUNCTION 9 setting in the section 6 6 22 lt PROGRAM1 gt mode must be made according to the specifications of the sampling system assembled with the TB450G as follows 1 Press the MODE key of the converter to change the mode to lt PROGRAM 1 gt and call FUNCTION 9 2 The code currently set is then displayed 1 for example 3 According to the specifications of the sampling system used change the code as necessary using the gt key and press the ENT key to set the code Code 1 When using a TB450G converter and detector solely or when assembling it with a simple sampling system as shown in Section 2 8 1 Code 2 When assembling a TB450G converter with an automatic sampling system as shown in Section 2 8 2 Code 3 When assembling a TB450G converter with automatic sampling and zero calibration systems as shown in Section 2 8 3 4 Press the MODE key to change the mode to lt MAINT gt Note 1 Be sure to set the correct code that meets the specifications of the sampling system used Otherwise correct turbidity measurements may not be per formed IM 12E04A03 02E 4 1 4 1 4 4 2 Feeding Zero Calibration Water 1 Feed the tap water to the zero turbidity filters 2 Shut all valves except V2 and SV4 Note 1 SV4 exists only when automatic calibration is used see Sections 2 8 1 and 2 8 2 Note 2 Use the valve operat
161. ue 0000 0 NTU The entire display flashes once In step 4 if the set value is beyond the permissible range 10 to 2200 NTU not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 6 31 8 Setting Turbidity Value of Calibration Plate FUNCTION A Upon shipment from the factory the value of the attached calibration plate has been set The following shows the setting key operations Example of display 1 Select FUNCTION A in the lt PROGRAMI gt 009 00 NTU mode 2 Press the gt key 009 00 NTU The most significant digit flashes 3 Select a digit with the gt key and set it to the 009 50 NTU desired value using the A or v key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set value gt 009 50 NTU The entire display flashes once In step 4 if the set value is beyond the permissible range 0 to 120 NTU not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 6 32 IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 9 Setting Zero Correction Factor FUNCTION B The zero correction factor obtained in zero shift calibration zero correction FUNC TION 3 in lt MAINT gt mode can be displayed or directly changed For details o
162. ugh a group of lenses This light is separated into scattered reflected and transmitted light on the water s surface The transmitted light and reflected light are absorbed in a dark area equivalent to a black body This scattered light intensity L is proportional to the turbidity as shown here L K Q S8 where K a constant relative to turbidity S turbidity Q anount of light from the lamp The scattered light is detected by a turbidity element a silicon photodiode after it is focused onto the element with a lens inside the detecting section in order to output a detection signal to the converter In addition a reference element is incorporated in the detecting section to hold the amount of light Q from the lamp constant and it also outputs a light detection signal to the converter The measuring circuit of the converter is in sealed housing of aluminum alloy together with the operating panel and a terminal block for external wiring This measuring circuit amplifies and calculates the input from the turbidity element in the detector and outputs a signal 1 to 5 V DC or 4 to 20 mA DC corresponding to the measuring range The converter also calculates the reference element input from the detector to control the lamp voltage so that the amount of light from the lamp is constant IM 12E04A03 02E 1 OVERVIEW Display lt Analog lt
163. um power consumption 7 5 VA Cable inlet port Applicable to an O D 6 5 to 7 mm cable Protection class Waterproof Materials Body Brass or stainless steel Sheet Nitrile rubber Ambient temperature 20 degC to 60 degC For the pipe of the tap water supply a hard PVC pipe VP16 or higher or soft PVC tube I D 15 mm or larger is recommended Drain piping denotes piping for discharging the measured water and tap water from the detector to a drain ditch or the like When laying piping be careful that no bends occur or water or bubbles become trapped as this may cause deposit to build up or a delay in the flow to occur in the piping For the drain pipe a hard PVC pipe VP40 VU40 or higher is recommended 3 7 3 3 Wiring There are the following categories for wiring to the turbidimeter 1 Wiring for detector and conveter 2 Wiring converter and valves SV1 SV2 when automatic cleaning added 3 Wiring converter and valves SV1 SV2 SV3 SV4 when automatic cleaning and automatic zero calibration added 4 Wiring for power supply and grounding 5 Analog output wiring 6 Digital output wiring 7 Contact input remote range selection wiring and contact output range output wiring if necessary 8 Contact output maintenance failure upper and lower limit alarms or automatic zero calibration cleaning outputs wiring if necessary Turbidity converter Receiving instrument Analog output wir
164. water is introduced to the micro filters via the hand operated valve V2 The filtrated water is then fed to the detector s measuring cell at a constant flow rate via the hand operated valve V3 and the head tank and then discharged through the drain outlet Untreated tap water is used as the cleaning water Tap water is fed from the side of the detector s measuring cell via the hand operated valve V4 and a spinning flow is generated inside the cell to wash off the suspension on the cell wall After cleaning the user should open the hand operated valve V5 situated below the head tank to drain the suspension of the measuring cell and head tank together with the measured water at the same time 1 2 IM 12E04A03 02E 1 OVERVIEW 1 1 3 Configuration with Sampling System and Automatic Cleaning System This system is configured by assembling an automatic cleaning system to the configura tion described in Section 1 1 2 immediately above The recommended piping is shown in the diagram in Section 2 8 2 For automatic cleaning the solenoid operated valve SV2 is installed in the cleaning water pipe as a cleaning water valve and the pinch valve SV1 below the head tank as a drain valve Both SV1 and SV2 can be controlled by the automatic cleaning sequence set in the converter to clean the detector and head tank automatically 1 1 4 Configuration with Sampling System Automatic Cleaning System and Automatic Zero Calibration System IM 12E04A03 02
165. ween Converter and Detector oie eeeeeeeeseeeeeeneeneeenee 3 9 3 3 2 Wiring between Converter and Valves SV 1 2 when Using Automatic Cleaning Function sie a E a a avant 3 9 3 3 3 Wiring between Converter and Valves SV 1 2 3 4 when Using Automatic Cleaning Function and vsisi sscs cstissssecevesssesesessves casssoyssescestassedsssesdeseap ERRE Automatic Zero Calibration Function sseeeseeeeseseeeeseseesrseerrsreersreereees 3 10 3 3 4 Power and Grounding Wiring eseeeeseeseesseesrsreeseerereereserreseeresreerereereees 3 10 3 3 5 Analog Output Wiring sesseesseeeeeseseeeseeresrerrsreserrresereenreneeesresesreneees 3 11 3 3 6 Digital Output Wiring oo cece ceeeeeeceeeeeeeeseeeseeseecaecsaecnesnaeeaees 3 11 3 3 7 Contact Input Remote Range Swtiching and Contact Output Range Output Wiring If necessary oo eee eee eseeeeceeecaeceseeseceseeeeneeeeeees 3 12 3 3 8 Contact Output During maintenance failure upper or lower limit alarm during automatic cleaning during automatic zero calibration Wiring If TECESSALY cs sucds sesso yvocseadsaevssesscsunsectestyubvsvspes cred dps gbed duos tecai teste acsthsres oe 3 13 4A Preparation f r Operation seirene Hila aere n e E E enema cane tees 4 1 4 1 1 Checking Piping and Wiring Conditions 200 0 cee cee ceeeneeneeeees 4 1 4 1 2 Supplyimge Powers ee erre AE E E E EE EEE EE R ys tae 4 1 4 1 3 Setting Sampling Specification 0 0 ee eee eeceeeeeseeeecaeesecsecnaeenees 4 1
166. witching are not selected this function selects the output range Contact outputs Al A2 A3 and A4 operate by the selected output range For the relationship between output ranges and contact outputs see Table 6 10 The following shows the setting key operations Example of display 1 Select FUNCTION 3 in the lt PROGRAMI gt _ _1 Range 1 mode The current set range is displayed with a code 2 Press the gt key to select the code __2 Range 2 al a _ 2 e __3 Range 1 Range 2 Range 3 F060602 EPS 3 Press the ENT key to enter the setting gt _ _2 The display flashes once 17 Setting Output Hold in Maintenance FUNCTION 4 This function sets execution stop of output hold in maintenance lt MAINT gt or lt PROGRAM 2 gt mode If execution is selected the output value immediately before operation holds when the maintenance mode is selected The following shows the setting key operations Example of display 1 Select FUNCTION 4 in the lt PROGRAM1 gt ON execution mode The current set status is displayed 2 Press the gt key to select on off OFF stop C ON OFF F060601 EPS 3 Press the ENT key to enter the setting OFF The display flashes once Immediately after setting the setting status of the analog output becomes effective When on hold is selected the HOLD lamp is lit while the output is held In addition even
167. y Errl7 is displayed to notify of a failure occur rence 6 Err16 RAM failure Occurrence A failure of the IC RAM used for the computation buffer is assumed Request checking and or repair of the converter CPU board Note Errl6 is detected only when the power is turned on All functions of the converter are suspended when a failure occurs 7 Err17 EEPROM failure Occurrence A failure of the data memory IC EEPROM is assumed Request checking and or repair of the converter CPU board Note Errl7 is detected only when the power is turned on All functions of the converter are suspended when a fanure occurs IM 12E04A03 02E 8 3 8 Err18 reference signal voltage failure Occurrence Operation and checking procedure 1 Measure the DC voltage across the converter connection terminals S2 and AG Confrrm that it is lower than about 2 45 V or it is higher than 0 5V Failure section and disposition a A failure of the control preamplifier in the converter is assumed Request checking and or repair of the control preamplifier 9 Err25 Iamp service life ended Occurrence Operation and checking procedure 1 Measure the DC voltage across the converter connection terminals P1 and P2 Confirm that it is about 5 4 V T080104 EPS Failure section and disposition a The lamp brightness decreases and the lamp voltage shows the upper control limit about 5 4 V
168. y The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set value 1000 0 NTU The entire display flashes once In step 4 if the set value is beyond the permissible range 10 to 2200 NTU not is displayed Reset the message by pressing the gt key and repeat the operations from step 2 6 30 IM 12E04A03 02E IM 12E04A03 02E 6 PROCEDURES FOR CONVERTER OPERATION 7 Setting Lower Limit Alarm Value FUNCTION 9 If the upper and lower limit alarm detection function is set to execution FUNC TION 9 in lt PROGRAM2 gt mode when a measured value is below this setpoint the MEAS lamp flashes and if AUX C1 C2 contacts are set for upper and lower limit alarms FUNCTION E in lt PROGRAM gt mode the contact output is actuated Alarm hysteresis is 2 of the setpoint The following shows the setting key operations Example of display 1 Select FUNCTION 9 in the lt PROGRAMI gt gt 010 0 NTU mode 2 Press the gt key 010 0 NTU The most significant digit flashes 3 Select a digit with the gt key and set it tothe 0000 0 NTU desired value using the A or V key The flashing digit moves to the right and when the least significant digit is reached it returns to the most significant digit 4 Press the ENT key to enter the set val

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