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HI 504 - Hanna Instruments

1. O Q O e e 17 3 e e e e A e e e 16 i e e e DUNT e o m e VAL s je AOD TT Tle el e X4 9 e E 42 6 e ed e e 1 ej e G gt 7 2 fe D G e el qeu 8 e e eji CE O BNC Socket for pH or ORP electrode Connection for Potential Matching Pin Connection for electrode reference Connections for Pt 100 Pt 1000 temperature sensor Not Connected for future use Digital Transmiter input HOLD input Advanced Cleaning input optional Power supply input Alarm terminal Relay 2 second dosing terminal optional Second analog output optional Relay 1 first dosing terminal First analog output HOLD output Relay 4 for Advanced Cleaning feature optional Relay 3 for Advanced Cleaning feature optional RS485 output terminal Q9 74 O C f C9 T2 O 00 C0 S OS O1 i CON N Unplug the meter before starting any electrical connections N Disconnect the Potential Matching Pin when setup item 1 04 OFF Gy SPECIFICATIONS Range 2 00 to 16 00 pH 2000 to 2000 mV 30 to 130 0 C Resolution 0 01 pH 1 mV 0 1 C above 10 C 1 C below Accuracy 0 02 pH 20 C 68 F 2 mV 0 5 C 9 9 to 130 0 C 1 30 to 10 C Typical EMC Deviation 0 2 pH 10 mV 0 5 Digital Input for RS485 the pH ORP C Transmitter Other Digital Insulated
2. 10 C 14 F amp 60 C 144 10 cm 3 9 69 cm 27 1 8 BAR 116 PSI 25 C bes or 3 BAR 43 5 PSI 50 C pH AND ORP ELECTRODES Hanna Instruments produces a wide range of pH and ORP electrodes specifically de signed for needs of industrial uses For a complete list of available electrodes visit our web site at www hannainst com or contact your dealer The below table lists all the Combination Flat tip PVDF body polymer filled electrodes with Matching Pin operating pressure up to 6 bar 87 psi HI i 1006 1016 1026 2004 2014 2024 Electrode type pH electrodes with Teflon junction pH electrodes with ceramic junction pH electrodes with open junction ORP electrodes with Teflon junction ORP electrodes with ceramic junction ORP electrodes with open junction Available with GP sensor type only i Sensor type pH electrodes 1 LT 10 to 80 C 23 to 156 0 to 12 pH 2 General Purpose 3 HT 0 to 100 C 32 to 212 F 0 to 14 pH 4 HF Fluoride resistant Sensor type ORP electrodes 1 Platinum 2 Gold BNC connector wire direct connection BNC temp sensor 255 wire direct Pt100 temp sensor BNC Pt1000 temp sensor wire direct Pt1000 temp sensor BNC connector amplified BNC Pt
3. always available pwd required NNKDS nul Same as LCD key NNKCD null Same as CAL DATA key NNKUP nul Same as 0 key NNKRG nul Same key NNKST nul Same as SETUP key NNKCL nul Same as CAL key NNKDW nul Same as 0 key NNKCF nul Same as CFM key NNK 02 nul Same as LCD CAL SETUP keys C C C C are ASCII chars corresponding to the setup item content P P are two additional bytes used for sign and half digit as follows P if gt 0 if lt O 0 if most significant digit is not used 1 if most significant digit is used When an item is shorter than 4 digits the C characters are filled with blanks Following are examples for setup item format item C 32 maximum relay ON time parameter value 15 format 01500 where 0 indicates a blank item C 21 setpoint 2 value while in ORP mode parameter value 1200 mV format 01200 item G 01 temperature compensation parameter value AIC format O0 AtC For all items with a fixed set of choices blank spaces on the left of the value displayed are replaced with as many characters are needed to reach the maximum string length which is for example 3 for item C 57 Blanks must be put on the tail for all items in order to have always a total length of 6 characters see the setup table The same parameter format used for setup item setting is used also for setup item getting i e w
4. CAL i CAL 1 ri Lt Once selected the value immerse the temperature probe in the second beaker as near as possible to the Checktemp and the calibration procedure will be the same as for the first point The instrument is factory calibrated however the user may also perform the Volt calibration which is a procedure avail able for the meter configured as pH controller only During pH measurements the instrument reads a mV value from the electrode and then converts it into a pH value Set item 1 04 to OFF to disable the Matching Pin Connect a HI 931001 or HI 8427 simulator to the BNC socket Once entered the calibration mode move through the menu with 0 or 0 key select the Volt calibration the primary LCD shows UOL mes sage and confirm it by pressing the CFM key After confirmation the primary LCD will show the actual mV value and the secondary LCD will display the gt first calibration point The calibration is performed over two points O and 350 mV Set the HI 931001 or HI 8427 simulator to O mV When the reading becomes stable if the measured value is close to the calibration point the CFM tag starts blink ing otherwise the WRONG indicator will flash In the first case press the CFM key to confirm calibration 1 r pu mee P d AL D The meter will proceed showing the scrol
5. Code Valid Values Default Present for ORP ERROR CONFIGURATION Erro E00 Alarm for setpoint 1 0105 3 yes error configuration and 24 to 29 see note 7 E01 Alarm for setpoint 2 0105 5 yes error configuration and 24 to 29 see note 7 E02 Max relay ON time 005 3 yes error configuration and 24 to 29 see note 7 E03 Life checkenor configuration 01011 9 yes see note 11 and 24 to 35 see note 7 E 10 pH electrode broken 0011 9 m or leakage and 24 to 35 see note 7 Referenceeledrodebroken 010 17 see note 7 7 ys or dirty or not immersed E12 Old pH probe 01011 0 m error configuration and 24 to 35 see note 7 E13 Dead pH probe 01011 2 m error configuration and 24 to 35 see note 7 E 14 Calibration time out 01011 0 m error configuration and 24 to 35 see note 7 E20 Temperature broken probe 01011 m error configuration and 24 to 35 see note 7 E21 Temperature level 0105 3 m error configuration and 24 to 29 see note 7 E40 Digital Transmitter 005 9 yes error configuration and 24 to 35 see note 7 E50 Cellular error configuration 01011 see note 7 3 yes E90 Power reset 01011 2 ys error configuration and 24 to 35 see note 7 E91 EEPROM coruption 691 9 yes error configuration and 30 to 35 see note 7 E92 Watchdog error configuration 01011 2 yes and 24 to 35 see note 7 E99 Level or pulse alarm relay LE Level AF ys signal see note 13 PULS Pulse Notes Code Valid Values Default Prese
6. into USEr item E11 is auto matically zeroed 19 When the relay set to SCLE is set to something else the simple cleaning action if in progress is aborted immedi ately When relay 3 or relay 4 or both of them are set to something else than ACLE and the advanced cleaning is in progress cleaning is aborted immediately but a complete rinsing phase is done before the actual end of the cleaning session Only one relay can be set to SCLE or alterna tively relay 3 and 4 can be set to ACLE Only one relay can be set to HOLd If these rules are not respected the display shows WRONG 20 These items do not vary when the pH ORP input selec tion G 00 is changed 21 If the relay 1 mode or the relay 2 mode is set to SEt1 the analog output 1 mode can not be set to SEt and vice versa Similarly if the relay 1 mode or the relay 2 mode is set to SEt2 the analog output 2 mode can not be set to SEt and vice versa 22 Alarm relay delta value for setpoint 1 determines the value of the correspondent alarm threshold by being added to or subtracted from the setpoint value for a high ON OFF 39 40 or PID or low ON OFF PID setpoint respectively The same is true for Alarm relay delta value for setpoint 2 A small fixed hysteresis 0 2 pH for pH and 30 mV for ORP must be passed to have the alarm turned off for a high alarm the alarm is turned off below high alarm hyste
7. NNHOP not available Requests hardware options NNSNR not available Requests hardware identifier always available NNSTS not available Requests instrument status relays LEDs configuration change flag etc NNPHR not available Requests last pH reading instrument configured for pH NNMVR not available Requests last mV reading always available NNTMR not available Requests temperature reading instrument configured for pH NNCAR not available Requests all last calibration data always available NNGET CNN Requests setup item C NN Use the NNSNR command if hardware identifier is needed NNGET command is answered with lt ProcessID gt lt CAN gt for the hardware identifier NNPWD CCCC Sends the general password always available NNSET Sets setup item C NN with parameter not available in setup mode NNEVF not available Requests event log file available in idle event scrolling or last calibration data scrolling mode w control OFF 61 62 Command Parameter Remarks NNEVN not available Requests new events always available NNAER not available Requests active errors always available NNCLS not available start advanced cleaning always available NNCLP not available abort cleaning always available NNHLD not available enter exit the hold mode
8. x 25 T pH at point 1 and point 2 This solution compensation feature is useful for example in the following case 504 is measuring pH pH at temperature T a sample is taken out and carried in the laboratory room to be checked with a reference pH meter in the meantime the temperature decreases to T and also the pH value measured with the reference pH meter changes to due to the chemical properties of the solution if the same solution compensation formula is applied in both HI 504 and the reference pH meter they will read the same value To enable the solution compensation set the 5 00 item in the setup menu to ON The solution compensation is disabled in any case when cali brating pH 83 TEMPERATURE COMPENSATION 84 If the setup item G 01 is set to an automatic tempera ture compensation will be performed using the temperature value acquired with the Pt100 Pt1 000 input If the probe appears to be unconnected or anyway it does not give a valid temperature temperature outside the 30 to 130 C range the instrument will generate a broken tem perature probe error which will be handled as stated in the error configuration In this case the temperature will be auto matically set to the setup item G 02 Manual or probe error temperature and the setup item G 01 will be automatically set to USEr see below After that the Pr100O Pt1000 input continues to be monitor
9. 2 can not be set to or DOLO if O 20 is set to SET and vice versa if M2 OOHI then 16 00 pH or 2000 mV I 52 2 if M2 OOLO then 2 00 pH or 2000 mV S2 A2 ifM2 PldH then D2 A2 and 16 00 pH or 2000 mVIl 52 2 35 36 if M2 Pldl then D2 A2 and 2 00 pH or 2000 mV 52 2 f M1 OOHI and 2 OOLO then S1 H10 52 2 ifM1 DOLO and 2 OOH then S2 H2l 1 H1 if MI PIdH and M2 OOLO then STI 52 2 if M1 DOLO and M2 PIdH then S1 H10 52 Pldl and M2 OOHI then 510 S2 H2 if MI and M2 Pld then S1 H10 52 if M1 PIdH and M2 Pldl then 510 52 if MI Pldl and M2 PIdH then 520 51 were the minimum deviation DN is 0 5 pH or 25 mV 2 The calibration hold password allows only calibrations and hold mode through keyboard for service personnel while the general password allows everything including calibra tion Obviously the general password and the calibration hold password cannot be viewed among other items when the SETUP key is pressed without entering the right general password The pH controller is sold with the general pass word set to 0000 3 When wrong setup value is confirmed the pH control ler does not skip to the next setup item but remains in the current item displaying a blinking WRONG indicator till the par
10. f the selected value is outside boundaries the confirma tion is not accepted and the first digit keeps blinking waiting for confirmation of a valid value If SETUP key is pressed instead of CFM the calibration value selection is aborted and the meter reverts back to a two point calibration To perform ORP calibration it is necessary to connect an HI 931001 or HI 8427 simulator to the BNC socket The meter has to be set as ORP controller e Set item 1 04 to OFF to disable the Matching Pin A two point calibration has to be performed the first point value is O mV and the second one can be chosen between 350 mV and 1900 mV Enterthe calibration mode select the ORP calibration use the 0 and O keys to move through setup menu and press the CFM key Set the HI 931001 or HI 8427 simulator to O mV The primary LCD will display the cur rent mV measure and the secondary LCD will show the first calibration point O mV KI When the reading becomes stable if the ORP value is close to the calibration point the CFM indicator starts blinking otherwise the WRONG indicator blinks and the CAL is fixed on In the first case press CFM to confirm calibration The meter will proceed showing the scrolling message Press CFM again to confirm the current buffer or right to es cape to prevent from confirming the calibration point inadvertently Pres
11. 99 Note WATCHDOG TEST ing setup item L 14 To exit the test press the CFM key the instrument will re main in the setup menu and move to the next setup item 1 08 During the test the relays are activated the primary LCD will always show the ACLE message and on the secondary display will be shown the actual status of the digital input On or OFF This test executes a dummy dead loop that causes a watch dog reset signal to be generated To enter the test procedure select the setup item t 08 an OFF blinking message will appear on the LCD e Press the 0 orf key once and the message will switch to a blinking GO e Press CFM key to confirm or the 0 or 0 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the beginning of the test setup menu Once confirmed the test the Reset test message will scroll once on the primary LCD and then the start up procedure is initiated Vi e ALARM ERROR CONFIGURATION Note This section is dedicated to all the possible error causes for alarm generation and to the actions performed according to the alarm configuration setup menu Error configuration Each alarm cause can be referred to an error to which an error code is assigned and which is logged in a dedicated memory space see
12. Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 66 2619 0708 Fax 66 2619 0061 United Kingdom Tel 01525 850 855 Fox 01525 853 668 USA Tel 401 765 7500 Fax 401 765 7575 For e mail contacts and complete list of Sales and Technical offices please see www hannainst com 116 SH rOSNVW 50 50
13. The GND pin of the interface connector and all the interface signals are optoisolated from the ground of the instrument the electrode and the temperature sensor Before connecting the meter to the computer consult the com puter manual The process controller can only work as a slave component In other words it can work as a remote terminal equipment answering to the commands only RS485 PROTOCOL FOR HI 504 60 Commands are composed of four parts addresses com mand identitier parameter end of command Some commands are used when the master is requesting information from the controller other when the master wants to set a parameter in the process memory RAM or EEPROM The end of commands corresponds to the CR char OxOd The master software must send the command string with a maximum delay of 20ms between each character The program on the master must not allow setting commands other than keyboard or cleaning start stop commands if the general password has not been entered After the general password recognition through the PWD command a 1 minute time out is let before the process meter locks again i e if the PC program waits for more than 1 minute between two subsequent setting commands the second one is not fulfilled and the PWD command must be issued again Following is the complete list of commands available Command Parameter NNMDR not available Remarks Requests firmware code always available
14. Event logging section for more details Five configuring actions are foreseen upon generation of an alarm 1 Alarm relay de energized 2 Auto cleaning control actions are stopped during auto cleaning mode can be enabled only for the Reference electrode broken or dirty error 3 3 6 or 22 mA fault current for the 4 20 mA output 22 mA fault current for the 0 20 mA output 4 Hold mode entered in any case for the following errors EEPROM corruption serial bus error 5 SMS sending to the selected telephone numbers in order to advise of error occurrence The red LED flashes in any case upon generation of an alarm i e it can not be disabled by changing the error con figuration Here is a table with errors error codes and default error han dling configuration ERROR Error Alarm 22 mA 3 6 mA Hold Auto SMS Code Relay de fault fault mode cleaning sending energizing current current Alarm for setpoint 1 00 On On Off Off Off Alarm for setpoint 2 01 On Off On Off Off Max relay ON time exceeded 02 On On Off Off Off Life check error 03 Off On Off pH electrode broken or leakage 10 On On Off On Off Reference electrode broken or dirty 11 On On Off On On Off Old pH probe 12 Off Off Off Off Off Dead pH probe 13 Off On Off Off Off Calibration timeout 14 Off Off Off Off Off Temperature probe
15. f GND 1 e NO kal gt gt ANALOG 157 5 NU 5 Ne c i NO N npor COM z POWER SUPPLY NC IN p HOLD L IN N dis z CLEAN COM x PE FS 0 lt O Input power Connect a 3 wire power cable er to the terminal strip line L earth PE and e N neutral N terminal connections PE Power 100VAC 120mA 115VAC 100mA 230VAC 50mA Line Contact 400mA fuse inside PE must be connected to ground leakage current 1 mA 12 Note Note Note nect the Pt 100 Pt 1000 to pins 1 T 1 3 and short pins 2 and with pt 4000 E ps REM a jumper wire P rails E I the Pt 100 Pt 1000 has more than m 2 wires connect the two wires of i i in2i 1 Pt 100 one end to pins 2 3 2 5 an auxiliary input to compensate es for the cable resistance and one seid e a wire from the other end to pin 1 Leave the fourth wire unconnected if present The instrument automatically recognizes the sensor type Pt 100 or Pt 1000 Analog Outputs when using shielded cable if the shield is not connected at the other end of the cable then con nect it to the terminal otherwise leave it floating All cables connected to rear panel should end with cable lugs A circuit breaker rated 10A max must be c
16. is not acknowledged or a bus fault occurs for more than a certain number of unsuccessful transmission attempts due for example to a damage occurred to one of the ICs con nected to the internal bus After that the controller displays a sliding message Serial bus error If the error is due to impossible communication with the EEPROM or the RTC all the pH ORP controller tasks are stopped the alarm relay is de energized the red LED blinks and the Serial bus error slides forever repair can not be postponed A software watchdog is provided in order to detect dead loop conditions or other causes that make the software stuck If it happens a software reset is generated after a time out of 1 second SELFTEST PROCEDURES DISPLAY TEST Note The selftest procedure can be made only entering the setup menu and selecting one of the items of the tESt group t 00 1 08 All the tests are made while in setup mode where a time out is present If no action is performed for about 5 minutes the mode is automatically exited and the instruments returns to previous mode The display selftest procedure consists of lighting up all the display segments together To start the procedure select setup t item 1 00 and an OFF blink Lr ry ing message will appear on the primary LCD Lan Pressthe O orf key once and the message will switch to blink rr ing GO E Press CFM key to confirm or t
17. to 99 The time out for the above answers is 1 answer to STS PHR MVR AER commands 30 ms 19200 or 9600 bit s 40 ms 4800 bit s 60 ms 1200 bit s for the complete answer trom STX to ETX 2 answer to other commands 2s for the first character of the answer The minimum delay between the last received and the first sent character is 15 ms to allow the master to set itself into receiving mode Here are descriptions of the answers format for setup item request see above The NNSNR request produces the following answer NN STX 7 charader long ASCII string representing hard ware identifier gt lt ETX gt e g 29 lt STX gt 1234567 lt ETX gt if the Process ID alias RS485 address is 29 and the hardware identifier is 1234567 The NNGET command is answered with NN CAN when used for the hardware identifier The NNMDR request produces the following answer NN lt STX gt FP504XYZW ABCD lt ETX gt where VV is the firmware version e g 10 for 1 0 XYZ are the three model digits e g XYZ 2 14 for dual setpoint ON OFF and PID control dual analog output AB is the first HI 92500 software version compatible with the firmware even if it may not be able to exploit all the features of the firmware e g 34 for 3 4 CD is the first HI 92500 software version fully compatible with this firmware e g 45 for 4 5 The NNPHR NNMVR NNTMR requests pr
18. to ignore Ifthell key is pressed the process controller restarts opera tion but alarm actions are performed as configured by the user see Alarm Error configuration section Note that the device will be in Hold mode in any case Ifthe 0 key is pressed all the data stored in the EEPROM are erased and the default values loaded Once performed the selected action the instrument will remain in the setup menu and move to the next setup item t 03 To enter the relays and LEDs test procedure select the setup item t 03 and an OFF blinking message will appear on the LCD Press the orl key once and the message will switch to a blinking GO Press CFM key to confirm or the 0 or 0 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the next setup item t 04 Once confirmed the test all the relays and LEDs if anyone was active are switched off and the message Relays and LEDs test Press CFM to escape will scroll on the primary LCD during all the test ANALOG OUTPUT TEST MT zn I X I Some keys are used to toggle relays and LEDs ON and OFF the LCD key toggles the alarm relay and the alarm LED the CAL DATA key toggles the red LED the 0 key toggles relay 1 and the corresponding LED the 0 key toggles relay 2 and the corresponding LED the SETUP key toggles relay 3
19. CR gt command is supported by NNEVN lt CR gt the new event request command which is answered with the list of events occurred since the last recep tion of a NNEVF CR or NNEVN CR command Note Note Here is the format for answer to NNEVN CR NIN lt STX gt O lt ETX gt if there is no new event otherwise NN lt STX gt new_events_no event code start date start time end date end time desA desB event code start date start time end date end time desA desB event code start date start time date end time desA desB lt gt where m is the number of events Each token is followed by a blank space except the last one desB directly followed by the lt ETX gt character new events no is the number of new events and its format is the ASCII format for a number 1 2 99 1007 When NNEVF CR or NNEVN CR command is received by the instrument the new events list is reset and a following NNEVN lt CR gt command will be answered with NN lt STX gt 0 lt ETX gt if no event took place in the meantime Thus if the answer to NNEVN CR com mand is not received correctly to update a remote monitor for events the NNEVF CR command for the whole event log file must be used After a reset of the instrument the answer to NNEVN lt CR gt is the same as NNEVF lt CR gt all events are new A modified record due to the closing of an error is not
20. PROBE CHECK 82 Note Note The pH electrode and the reference electrode for both pH and ORP can be automatically monitored through HI 504 Setup items involved are 1 13 pH electrode impedance test enable 14 reference electrode impedance test enable 1 15 maximum reference electrode impedance and 1 04 tential matching pin enable A pH electrode broken or leakage error error code 10 is generated whenever the pH electrode impedance is less than approximately 1 This error can be due to breakage of the electrode glass or short circuits caused by moisture or dirt A reference electrode broken or dirty or not immersed error error code 11 is generated whenever the reference elec trode impedance is greater than the value set in item 1 15 maximum reference electrode impedance range is 0 5 to 100 0 default is 50 0 This error can be due to soiling of the reference electrode It can occur also when either the reference electrode or the matching pin are not immersed in the solution An automatic cleaning procedure can be triggered by this error see the Alarm Error configu ration section for more details The pH electrode test is performed when the following condi tions are satisfied the test has been enabled through the setup item 1 13 the device is in one of the following modes idle last cali bration data scrolling event log file scrolling the device is not in hold mode the devi
21. They are automatically restored if the controlled parameter is changed back later The follow ing setup items cannot vary when changing from pH to ORP or vice versa because they are items strictly related to the instrument and not to the controlled magnitude Factory ID Process ID alias RS485 address Calibration hold password General password Baud rate Modem calls answer enable Cellular PC connection items Hardware identifier and RTC date and time For proper operation while working with the Digital Transmitter this item must be equal to the correspon dent one in the Digital Transmitter If the two values do not coincide a Digital Transmitter error is generated 11 A life check erroris generated if the pH reading does not vary for more than 0 10 pH within the time selected through the life check time item pH controller or mV reading for more than 10 mV within the same time ORP controller 12 When the Digital transmitter 504910 is used the temperature is measured by the transmitter along with pH pH controller or ORP ORP controller These measure ments are sent to the Process Controller The calibration data set for the Digital Transmitter is kept within the transmitter and thus it is separated from the BNC set This means that the calibration slope and offset and the other GLP data are au tomatically switched from the BNC set to the Digital Transmit ter set and vice versa when the measurement input is switch
22. and mV units respectively Relation between Deviation D and PB is D Range PB 100 Each setpoint has a selectable proportional band PB1 for setpoint and PB2 for setpoint2 Two further parameters must be provided for both setpoint Ti Kp Ki reset time measured in minutes Td Kd Kp rate time measured in minutes Til and Td1 will be the reset time and rate time for setpoint while Ti2 and Td2 will be the reset time and the rate time for setpoint2 TUNING A PID CONTROLLER Note The proportional integrative derivative terms must be tuned i e adjusted to a particular process Since usually the pro cess variables are not completely known a trial and error tuning procedure must be applied to get the best possible control for the particular process The target is to achieve a fast response time and a small overshoot Many tuning procedures are available and can be applied to 504 simple and profitable procedure is reported in this manual and can be used in almost all applications The user can vary five different parameters i e the setpoint 51 or S2 the deviation D1 or D2 the reset time the rate time and the proportional control mode period T User can disable the derivative and or integrative action for P or Pl controllers by setting Td O and or Ti MAX Ti respectively through the setup procedure SIMPLE TUNING PROCEDURE Note Note The following procedure uses a graphical tech
23. and the corresponding LED the CAL key toggles relay 4 and the corresponding LED the 0 key toggles the digital insulated hold output When relay LED is activated all the others are disactivated LEDs are verified simply by looking at them while relays can be verified through a multimeter set for continuity test To exit the test press the CFM key and the previous configu ration of the relays is reestablished The instrument will remain in the setup menu and move to the next setup item t 04 The analog output test is done through the setup items t 04 analog output 1 and t 05 analog output 2 To enter the analog output test procedure select the corre sponding setup item and an OFF blinking message will appear on the LCD e Press the 0 orf key once and the message will switch to a blinking GO e Press CFM key to confirm or the 0 or 0 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the next setup item Once confirmed the test a start out 17 put value mA is proposed and FEIET displayed on the primary LCD This AK value is let out to the analog output and coincides with the minimum value of the analog output type chosen with setup item O 11 analog output 1 and 21 analog output 2 A new output value can be edited manually It is possible to change the v
24. in the event log file nothing happens when the LCD key is pressed Otherwise the primary display will show man the code of the last logged event while the secondary LCD will show the num ber index of the event nad i For each event the following is reported in any case error code displayed Er followed by the error number or setup item code displayed S followed by the setup item code or CALE indication or CLEA indication event index the oldest event has index O the latest event has the higher index shown on the secondary LCD In addition the following information can be visualized e forerrors start date start time and if error is not on anymore end date end time for configuration changes date of change time of change previous value new value for calibrations date of calibration time of calibration calibrated unit oH C 4 20 Uolt 40 20 1d 4 20 t 0 20 3 4 20 i for cleaning events start date start time type of cleaning AdCL for advanced cleaning SICI for simple cleaning Once entered the log event scrolling press thell key to move through the events IF the event is an error still active the error code on the pri mary LCD will blink otherwise it will be fixed To have a look at the additional information of a selected event press the 0 key it will cycle through
25. is being triggered by one or more errors and no other trigger source ditferent from an error is active The analog output follows these rules ifitis configured for control i e setup item O 10 or 0 20 set to SEt its value is set to the minimum e g 4 mA for 4 20 mA output if itis configured for a recorder its value is either set to a user selected value through the setup item O 15 or O 25 when item O 14 or O 24 is set to USEr orfrozen to the last value i e the output value just before entering the hold mode when item O 14 or O 24 is set to HOLd After the cause which made the instrument enter the hold mode expires the device exits hold mode but control and alarms remain disabled for a delay which can be user se lected O to 99s through setup item C 70 In that situation measurements are normally acquired displayed and recorded through the analog output or the R 485 Alarms red LED alarm relay fault currents are not disabled ifthe hold mode is being triggered by an error and no other trigger source is active ANALOG OUTPUT The meter is provided with two insu bout lated current outputs S lout It is possible to configure the operating mode of each output through setup menu items O 10 and O 20 If the meter is configured as an ORP controller the output 2 can be enabled to operate in control mode only setup item O 20 set to SEt see the Contro
26. meter will cycle through the following steps in reverse order i e beginning from last buffer At any time pressing LCD or CAL DATA key the meter will return to the regular operating display e Press the 0 or D key to view the time of last calibration The second ary display will show HOU to indicate hour and minute while the primary LCD will show the time as HH mm format e a KI V3 4 E X Press the 0 0 key again to view the offset in mV at the time of last calibration The secondary display will show OFF to indicate offset Press the 0 0 key again to view the slope in mV pH at the time of last calibration The secondary dis play will show SLO to indicate slope 1 1 1 me Press the 0 key again to view the first memorized buffer at the time of last calibration The secondary display will show BUF 1 to indicate first buffer Press the 0 key again to view pH the second memorized buffer if present at the time of last calibra tion The secondary display will show BUF2 to indicate second buffer Press the 0 or 0 key again to re rain turn to the first CAL DATA display Li 0 00 Ll date at the time of last calibration 1 BUF 2 Note When the Measurement input selection item is set
27. of cleaning relay 3 is asso ciated with water and relay 4 corresponds to detergent minimum pause time has to be set for advanced cleaning setup item L 14 to avoid continuous cleaning due to the external trigger A cleaning action with detergent can be fol lowed by one or more actions without detergent when desired Simple cleaning actions are performed in the following order Rinsing time the device enters hold mode all relays con figured for simple cleaning are energized If the device is in normal measurement mode the rinSinG message scrolls on the LCD otherwise i e the device is in setup mode the cleaning is performed but no message appears 51 52 Hold mode end delay set by item C 70 if the device was controlling when the cleaning action started then the hold mode end delay must expire before restarting control Advanced cleaning actions are performed in the following or der Pre rinsing time the device enters hold mode and relay 3 is energized If the device is in normal measurement mode the PrE rinSinG message scrolls on the LCD Detergent washing time relay 4 is energized and relay 3 continues to be energized If the device is in normal measurement mode the dEtErGEnt message scrolls on the LCD It is possible to configure some cleaning without detergent setup item L 17 In this case the message dis played is no dEtErGEnt Rinsing time relay 4 is de energized and r
28. pH VALUES AT VARIOUS TEMPERATURES 104 ELECTRODE CONDITIONING AND MAINTENANCE 105 DEFINITIONS ada 106 amodo oe dat 109 CES UL STANDARDS ced bre ce ee we 114 WARRANTY All Hanna Instruments meters are guaranteed for two years sensors electrodes and probes for six months against detects in workmanship and materials when used for their intended purpose and maintained according to instruc tions This warranty is limited to repair or replacement free of charge Damage due to accident misuse tampering or lack of pre scribed maintenance are not covered If service is required contact the dealer from whom you pur chased the instrument If under warranty report the model number date of purchase serial number and the nature of the failure If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned to Hanna Instruments first obtain a Returned Goods Authorization number from the Customer Service de partment and then send it with shipping costs prepaid When shipping any instrument make sure it is properly packaged for complete protection construction and appearance of its products without ad Hanna Instruments reserves the right to modify the design vance notice j Dear Customer Thank you for choosing a Hanna Product Please read this instruction manual careful
29. tal Transmitter the last calibration data retrieved through this command refer to Digital Transmitter and is stored in that device The event log file is requested through the NNEVF lt CR gt command The maximum length of the event log file is 100 records Here is the format for the answer no generated error or event the answer has the format lt 5 gt 0 lt gt otherwise NN lt STX gt events_no event code start date start_time end date end time desA desB event code start date start_time end date end time desA desB event code slart date start time date end time desA desB lt gt where m is the number of events Each token is followed by a blank space except the last one desB directly followed by the lt ETX gt character 2 events no is the number of events and its format is the ASCII format for a number 1 2 99 1007 The meaning of start date and start_time is for errors date and time at which the error was generated for setup events date and time of a setup item change 67 68 for calibration events date and time of a calibration for cleaning events start date and time of cleaning action The meaning of end_date and end time is e for errors end date and time if the error is not active anymore for setup events no meaning for calibration events no meaning for cleani
30. tem perature level orlowerthan the minimum temperature level The difference between maximum and minimum must be at least 2 C A small fixed hysteresis 0 3 C must be passed to have the alarm turned off 33 The modem present in the HI 504902 module is cer tified by Telecom to work in the following countries Argen tina Australia Austria Belgium Brazil Canada Chile China Cyprus Czech Republic Denmark Finland France Germany Greece Hong Kong Hungary Iceland India Indonesia Ireland Israel Italy Japan Korea Liechtenstein Luxembourg Malaysia Mexico Netherlands New Zeland Norway Philippines Poland Portugal Russia Singapore Slovak Republic South Africa Spain Sweden Switzerland Taiwan Turkey United Kingdom United States If your country is not present in the list please contact your Hanna dealer If the country code is shorter than characters fill the code with zeros in front CONTROL MODE RELAY MODES 42 The control mode is the normal operational mode for this meter During control mode HI 504 tulfills the following main tasks convert information from pH ORP and temperature inputs to digital values and show them on the display control relays and generate the analog outputs as deter mined by the setup configuration display alarm condition perform cleaning actions according to the relays configuration start and stop hold mode according to the programmed c
31. the membrane junction Protein Soak in Hanna HI 7073 Protein Cleaning So lution for 15 minutes Inorganic Soak in Hanna 7074 Inorganic Cleaning Solution for 15 minutes Oil grease Rinse with Hanna 7077 Oil and Fat Clean ing Solution After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water and soak the elec trode in HI 70300 Storage Solution for at least 1 hour before reinstalling it Evaluate your electrode performance based on the following Noise Readings fluctuate up and down could be due to clogged or dirty junction referto the Cleaning Procedure above Dry Membrane Junction soak in Storage Solution HI 70300 for at least 1 hour Check to make sure the installation is such as to create a well forthe electrode bulb to constantly remain moist Drifting soak the electrode tip in warm Hanna Solution HI 7082 forone hour and rinse tip with distilled water lowSlope referto the cleaning procedure above e No Slope Check the electrode for cracks in glass stem or bulb replace the electrode if cracks are found Note Make sure cable and connections are not damaged nor lying in a pool of water or solution Slow Response Excessive Drift soak the tip in Hanna Solu tion 7061 for 30 minutes rinse thoroughly in distilled water and then follow the Cleaning Procedure above For ORP Electrodes polish the metal tip with a lightly abra sive p
32. to 222 then no check will be made on the maximum number of SMS and the instrument could send an unlimited number of messages In this case the item value will not be decremented and no check will be made on the SIM expiration date 29 Every SMS sent by the instrument requires a reception confirmation from the user phone call to the instrument If this confirmation does not arrive for example because the message was lost or did not reach the Short Message Service Center it is possible to set the instrument in order to send again the message The maximum number of repeated mes sages is set through this item see P06 for the delay between two subsequent messages If this item is set to O then no confirmation is waited by the instrument 30 This item sets the delay between the sending of two subsequent messages It has effect only if item PO5 value is 1 or greater 31 The SIM s expiration date has to be inserted manually through these items 07 09 The user is supposed to up date these items every time a recharge of the card occurs Three advising messages are sent to the telephone number config ured in item PO2 and when the card is going to expire two weeks before one week before and the day before If the user sets the item to 222 then no check will be made on the SIM expiration date 32 A temperature level error is generated whenever the measured temperature is greater than the maximum
33. trans mitted by NNEVN lt CR gt so again the NNEVF lt CR gt com mand is needed A small subset of the event log file with information about the active errors can be downloaded through the NNAER lt CR gt command always available even during con trolling The answer is NN lt STX gt C C C C C C lt ETX gt where are the ASCII representation of byte described below e g B OxF3 0 C F C 37 CC are the ASCII representation of byte B described below e g B Ox1D 1 D CC are the ASCII representation of byte described below e g B OxBE D0 C B 69 70 Note Note Note The meaning of B B is B bit O Alarm for setpoint 1 B bit 1 Alarm for setpoint 2 B bit 2 Maximum relay ON time exceeded B bit 3 Life check error B bit 4 pH electrode broken or leakage B bit 5 Reference electrode broken or leakage B bit 6 Old pH probe B bit 7 Dead pH probe B bit O Calibration time out B bit 1 Temperature probe broken B bit 2 tree for future use and set to 0 B bit 3 Digital transmitter error B bit 4 Power reset B bit 5 EEPROM corruption B bit 6 Watchdog reset B bit 7 Temperature level error B bit O tree for future use and set to O B bit 1 free for future use and set to O B bit 2 tree for future use and set to O B bit 3 free for future use and set to O B bit 4 free for future use and set to O B bit 5 fre
34. 0000109999 see notes 2 20 0000 ys 6 99 General password 0000 to 9999 see notes 2 20 0000 ys CONTROL CtrL C00 Control enable OFF Control mode disabled yes On Control mode enabled SETPOINT 1 SEH C10 Setpoint 1 mode M1 OFF Disabled OOH yes see note 1 OOHI ON OFF high set point 0010 ON OFF low set point PidH PID high set point PldL PID low set point C11 Setpoint 1 51 2 00 to 16 00 pH or 8 00 pH or yes see note 1 2000 to 2000 mV 500 mV 27 28 Code Valid Values Default Present for ORP C12 Hysteresis forsetpoint HT 0 0010 18 00 pH or 1 pH or ys see note 1 010 4000 mV 50 mV C13 Deviationforsetpoint 1 DT 0 5010 18 00 pH or 1 pH or yes see note 1 25104000 mV 50 mV C14 Reset time for setpoint 1 0 1 10 999 9 minutes 999 9 min yes C15 Rate time for setpoint 1 0 0 to 999 9 minutes 0 0 min yes SETPOINT 2 SEi2 C20 Setpoint 2 mode M2 OFF Disabled 0010 yes see note 1 OOHI ON OFF high set point 0010 ON OFF low set point PidH PID high set point PldL PID low set point C21 Setpoint 2 52 2 00 to 16 00 pH or 6 00 pH or yes see note 1 2000 to 2000 mV 500mV C22 Hysteresis forsetpoint2 H2 0 0010 18 00 pH or 1 pH or yes see note 1 010 4000 mV 50 mV C23 Deviationfor setpoint 2 D2 0 5010 18 00 pH or pH or yes see note 1 25104000 mV 50 mV C24 Res
35. 100 sensor amplified Cable length 05 10 15 m for not amplified electrodes 15 25 50 75 m for amplified electrodes Fluoride resistant glass sensor F 2g L temperature lt 60 C pH gt 2 Not for ORP electrodes DECLARATION CONFORMITY IEA instruments 4 DECLARATION OF CONFORMITY Hanna Instruments Italia Srl via E Fermi 10 35030 Sarmeola di Rubano PD ITALY herewith certify that the microprocessor based controllers HI 504 series have been tested and found to be in compliance with EMC Directive 89 336 EEC and Low Voltage Directive 73 23 EEC according to the following applicable normatives EN 61000 6 1 Electromagnetic Compatibility Generic Immunity Standard IEC 61000 4 2 Electrostatic Discharge IEC 61000 4 3 RF Radiated TEC 61000 4 4 Fast Transient EN 61000 6 3 Electromagnetic Compatibility Generic Emission Standard EN 55022 Radiated Class B EN61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Date of Issue 10 01 2002 tombe A Marsilio Technical Director On behalf of Hanna Instruments S r l Recommendations for Users Before using these products make sure that they are entirely suitable for the environment in which they are used Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment To maintain th
36. 2400 4800 9600 19200 19200 ys 0 37 Modem calls answer enable OFF Disabled OF yes see note 20 On Enabled 0 32 Modem country code Dialing code ofa country where 000 ys see note 33 modem of HI504902 is certified INPUT InPU 00 Measurement input selection Prob BNC Prob yes see note 12 Digital Transmitter 03 Digital Transmitter address 001099 00 yes used only if 00 trAn 04 Potential matching pin OFF unused asymmetrical input On yes see notes 24 25 On in use symmetrical input 10 Calibration time out 00 to 99 days 00 means disabled 90 m 11 lifechektime OFF life check disabled OF see notes 11 25 1 1 hour 2 2 hours 4 4 hours 112 Minimum pH probeslope 45 to 75 mV pH 45 mV pH m see note 25 13 electrode impedance OFF disabled Or m test enable see note 25 enabled 14 Reference electrodeimpedance OFF disabled On ys test enable see note 25 enabled 115 Max ref electrode impedance 0 5 to 100 0 50 0kQ yes see note 25 REAL TIME CLOCK rtC 00 Current day 011031 see note 20 fromRIC 5 01 Current month 0110 12 see note 20 from RTC 5 yes 32 Code Valid Values Default Present for ORP 102 Curent year 2000 to 2099 seenote20 fromRIC 5 yes 103 Current time 00 00 to 23 59 see note 20 from RTC 5 yes
37. 5 gt lt gt 1727374 where C C are the ASCII representation of byte B described below e g B C F C 37 CC are the ASCII representation of byte B described below e g B Ox1D D C 1 C D The meaning of B and B is B bitO alarm relay 1 energized de energized B bit1 2 red LED bit 2 O and bit 1 O LED is OFF bit 2 1 and bit 1 0 LED is fixed 65 OD E9 2 9 Do ww B 1 B 1 bit 3 bit 4 bit 5 bit 6 bit 7 bit O bit 1 2 bit 3 bit 4 bit 5 bit 6 bit 7 ON bit 2 1 and bit 1 1 LED blinks relay 1 1 relay 2 1 relay 3 1 relay 4 1 energized 0 de energized energized 0 de energized energized 0 de energized energized 0 de energized hold digital output 1 ON 0 OFF control 1 ON 0 OFF setup mode bit 2 0 and bit 1 O notin setup mode bit 2 1 and bit 1 0 setup mode view only bit2 1 and bit 1 1 setup mode unlocked calibration mode with device unlocked 1 yes O no setup updated setto 1 after a device power up or a device reset or a change in setup made through the instrument keyboard resetto O after receiving a GET command calibration mode setto 1 after a device power up Note orwhatever complete calibration resetto O after receiving a CAR command hold mode 1 ON 0 OFF free for future use and set to 0 The NNCAR request produces the foll
38. 6 0_VARMAX1 0 VARMINT VARMAXT 1 pH or 50 mV 0 VARMINT o 0 HOLDIO 0 VARMAXI 0 14 Analog output 1 value upon USEr Userselected value HOLA yes hold mode see note 16 HOLd Previous value is frozen 0 15 Analog output 1 value upon 2 00 to 16 00 pH 7 00 pH or ys hold mode if0 14 USE or 2000 to 2000 mV OmV 6 0 HOLD it must be within the O VARMIN 100 VARMAX1 1 interval ANALOG OUTPUT Z2 Oui2 0 20 Analog output 2 mode TECO Recorder temperature pH yes see notes 21 26 SEY Control setpoint 2 or OFF ORP OFF Disabled SEY Control setpoint 2 ORP 0 21 Analog output 2 type 0 2070 20 mA IX ys 4 20 4 20 mA 0 22 Measurement value for 30 to 130 0 C 0 m analog output 2 minimum 0 VARMIN2 0 VARMAX2 10 C 0 VARMIN2 0 VARMIN2c 0 HOLD20 0 VARMAX2 0 23 Measurement value for 30 to 130 0 C 100 0 m analog output 2 maximum 0 VARMIN2 TIO VARMAX2 10 C 0 VARMQ O VARMIN2G 0 HOLD20 O VARMAX2 Code Valid Values Default Present for ORP 0 24 Analog output 2 value upon USEr Userselected value Hold m hold mode see note 16 Previous value is frozen 0 25 Analog output 2 value upon 30 to 130 0 C 25 m hold mode if0 24 USEr must be within the O VARMIN2 0 HOLD2 100 VARMAX2 1 interval BAUD RATE bAud 0 30 Baud rate see note 20 1200
39. 82 3 5M KCI Electrolyte 4x50 mL ELECTRODE CLEANING SOLUTIONS HI 7061M orHI 7061L General Cleaning Solution 230 or 500 ml bottle 7073M or HI 7073L Protein Cleaning Solution 230 or 500 ml bottle 7074M or HI 7074L Inorganic Cleaning Solution 230 or 500 ml bottle HI 7077M orHI 7077L amp Fat Cleaning Solution 230 or 500 ml bottle OTHER ACCESSORIES HI 504900 Hanna GSM Module 504901 Hanna GSM Supervisor 504902 Hanna RS485 Modem HI 504910 Digital Transmitter BL PUMPS Dosing Pumps with Flow Rate from 1 5 to 20 LPH ChecktempC Stick Thermometer range 50 to 150 C ChecktempF Stick Thermometer range 58 to 302 F HI 7610 Stainless steel Pt1 00 probe with standard 1 2 external threads on both ends for in line and immersion installation 5 m 16 5 cable HI 7620 Glass Pt100 probe with external PG13 5 thread and 5 m 16 5 cable 109 7611 7621 HI 60542 0 HI 60545 0 HI 60501 0 HI 60501 1 HI 8427 HI 931001 HI 931002 HI 8614 HI 8614L HI 8615 HI 8615L HI 92500 Stainless steel Pr1000 probe with standard 1 2 external threads on both ends for in line and immersion installation 5 m 16 5 cable Glass Pt1000 probe with external PG13 5 thread and 5 m 16 5 cable 1 set of O rings for HI 60542 electrode holder 1 set of O rings for 60545 electrode holder 1 set of O rings for HI 60501 electrode holder PVC mounting flange for HI 60501 electrode holder pH ORP Electrode Simu
40. A 0 01 Relay 1 mode OFF Disabled SET yes see notes 19 21 Control setpoint 1 SEt2 Control setpoint 2 Simple cleaning HOLd Energized in hold mode 0 02 Relay 2 mode OFF Disabled SE ys see notes 19 21 SET Control setpoint 1 SEt2 Control setpoint 2 SCLE Simple cleaning HOLd Energized in hold mode 0 03 Relay 3 mode OFF Disabled OF yes see notes 15 19 SCLE Simple cleaning Advanced cleaning Energized in hold mode 0 04 Relay 4 mode OFF Disabled OFF yes see notes 15 19 Simple cleaning Advanced cleaning HOLd Energized in hold mode 29 30 Code Valid Values Default Present for ORP 0 05 Hold digital output OFF Disabled HOLA yes HOLd Enabled upon hold mode ANALOG OUTPUT 1 0 10 Analog output 1 mode ECO Recorder O ys see notes 6 21 SE Control setpoint 1 0 11 Analog output 1 type 0 20 0 20mA 4 20 6 yes 4 20 4 20 0 12 Measurement value for 2 00 to 16 00 pH 0 00 pH or ys analog output 1 minimum or 2000 to 2000 mV 2000 mV 6 0 VARMINT 0 VARMINT 0 O VARMAXT 1 pH or 50 mV 0 VARMINT o 0 HOLDIO 0 0 13 Measurement value for 2 00 to 16 00 pH 14 00 pH or analog output maximum or 2000 to 2000 mV 2000 mV
41. CELLULAR MODEM PC CONNECTION PHOn 00 RS485 Connection type PC PCormodemconnedion yes see note 20 CELL Cellular module connection POT PIN Number see note 20 0000109999 0000 ys 02 Telephone number 1 00000000000000000000 see notes 20 27 109999999 9999999999999 yes indicates no number P03 Telephone number 2 00000000000000000000 see notes 20 27 to 99999999999999999999 yes indicates no number P04 Number of remaining 00010200 100 ys messages seenotes 20 28 and 222 POS Number of repeated 0005 2 yes SMSs see notes 20 29 P06 Delay between two 05 to 60 minutes 10 yes subsequent 51 55 see notes 20 30 07 SIM expiration day 011031 0 yes see notes 20 31 SIM expiration month 011012 0 yes see notes 20 31 P09 SIM expiration year 2000102099 2010 ys see notes 20 31 READING OFFSETS OFFS FOO pH or ORP actual value measured value 1 00 pH or measured ys See notes 17 25 200 mV to measured value value 1 00 pH or 200 mV pH or ORP reading offset 1 00 to 1 00 pH or 0 00 pH yes adjustment see note 25 20010 200 mV or 0 mV Temperature actual value measured value 10 0 Cto meas value no for ATC only see notes 18 25 measured value 10 0 C see note 17 Temperature reading offset 10 0 to 10 0 C 00 m adjustment for ATC only see no
42. CFM key to confirm selection LF r r3 2 calibration has to be performed over two points the first point has to be 0 C and the second one can be 2 CAL chosen between 25 C and 50 C Once confirmed the type of calibration the primary LCD will display the current temperature measure and the sec ondary LCD will show the first calibration point 0 C When the reading becomes stable if the temperature value is close to the calibration point the CFM tag starts blink ing otherwise the WRONG indicator will flash n the first case press the CFM key to confirm calibration The meter will proceed showing the scrolling message Press CFM again to confirm the current buffer or right to es cape to prevent from confirming the calibration point inadvertently 1 f mr Pressing again the CFM key the sec ondary LCD will display the second calibration point In the case the measured temperature is not close to the calibration value the meter remains in the WRONG status until the reading becomes unstable or the calibration mode 21 VOLT CALIBRATION 22 is exited by pressing the CAL key When performing the second calibration point it is pos sible to choose between two values 25 C and 50 C Pressing thell key the value on the secondary LCD will switch between the two possibilities am me 1 EN
43. D The electrode is still working but it is necessary to perform a cleaning proce dure see Electrode conditioning and maintenance and In line Cleaning sections or replace it If the offset is outside the 60 to 60 mV range the dEAd ProbE message will scroll across the LCD and the corre sponding erroris activated The electrode has to be replaced as soon as possible because there is no reliability on the measured pH values A one point calibration at a value different from the standard buffer values is possible by entering the desired calibration value This is the actual pH value at the current calibration temperature Enter the pH calibration mode no matter if the standard or NIST buffer set is selected then press the SETUP key while the secondary LCD is dis playing the first buffer value pH 7 01 or pH 6 86 Note ORP CALIBRATION The pH calibration value will switch to 7 00 the first digit starts blinking 1 21 01 and itis possible to change its value CMS e Am a simply using the 0 or O0 key on Au a e Once selected the first digit value press the 0 key the first digit will be fixed and the second one will start blinking Pressing of the 0 key repeatedly will result on circularly moving on the secondary LCD When the desired calibration value is reached must be within 0 00 to 16 00 pH press the CFM key to confirm and the calibration will proceed as described above
44. HANNA instruments 504 Panel mounted Microprocessor based pH ORP Process Controller Instruction Manual TABLE CONTENTS WARRANTY i iris aea buy d bbe tbe ae HERPES 4 MODELIDENTIFICATION 5 PRELIMINARY 6 GENERAL 6 FUNCTIONAL DESCRIPTION 8 520 E orte 10 MECHANICAL DIMENSIONS 11 INSTALLATION i oret denn d Ro teca 12 CALIBRATION MODE 14 24 CONIROLM ODBE eene eee ted goa aes 42 IN LINE CLEANING a rds hee geek 5 IDLE MODE eae ee aa hes 54 HOLD MODE da ck the ae ee ees 4 ene 55 56 58 SHORT MESSAGING SERVICE 5 5 71 MODEM 79 pH ORP PROBE CHECK 82 SOLUTION 83 TEMPERATURE COMPENSATION 84 LAST CALIBRATION DATA 86 OFFSET AND SLOPE DIRECT SELECTION 88 EVENT LOG FILESCROLLING 90 FAULT CONDITIONS Ex dee 92 SELFTEST PROCEDURES 222225 5 6 he 93 ALARM 101
45. Inputs 2 digital insulated inputs 1 for hold and 1 for the advanced cleaning ON state 5 to 24 VDC Digital Insulated Output A digital insulated contact closed upon hold mode Temperature compensation Automatic or manual from 30 to 130 C With 3 wire or 2 wire Pt100 Pt1000 sensor with automatic recognition and damage test Temperature probe Installation Category Power Supply 24Vdgac depending on model 230 Vac 115 Vac or 100 Vac 10 50 60 Hz Power Consumption 10 VA Over Current Protection 400 mA 250V Quick Blow Fuse Max Oscillation Frequency 8 MHz Relays 1 2 3 4 Electromechanical relay SPDT contact outputs 5A 250 VAC 5A 30 VDC resistive load Fuse protected 5A 250V Quick Blow Fuse Alarm Relay Electromechanical Relay SPDT contact output 5A 250 VAC 5A 30 VDC resistive load Fuse protected 5A 250V Quick Blow Fuse Analog Output e 2 independent outputs 0 22 mA configuring as 0 20 or 4 20 mA Analog Output Resolution 0 1 f s Analog Output Accuracy 2 f s Data logging 6000 pH C or ORP samples Environment 0 to 50 C max 85 RH non condensing Casing 20 housing IP54 front panel Enclosure single case DIN Weight approximately 1 6 kg 3 5 Ib MECHANICAL DIMENSIONS FRONT VIEW SIDE VIEW E E E 138 0 mm 140 0 mm 144 0 m
46. Note Note Note reset when the expiration date is changed If the expiration date is reached without any updating of the items 7 PO9 then the Cellular error will be switched on and no more messages will be sent by the instrument until the error is disactivated To disactivate this error it is necessary to update the SIM expi ration date If the user has unlimited credit on the SIM card the item P04 has to be set to 222 which is interpreted by the instrument as unlimited number of SMSs that can be sent In this case the value of remaining messages will not be decremented and no check will be performed on the SIM card expiration date Moreover at the beginning of each SMS it will not be present the remaining messages information msg It is possible to ask information about the current pH and temperature readings and active errors to the HI 504 also from a cellular phone different from the one s selected through the item 2 and This is accomplished by sending to the instrument the SMS Pxx where xx indi cates the ID of the HI 504 setup item 11 The instrument will recognize the command and reply send ing the requested information If a communication problem occurs during the normal func tioning of the instrument the Cellular error will be switched on and no SMS can be submitted until this error will be disactivated when this error occurs the i
47. alue has overtaken one alarm threshold This additional feature will avoid fake or temporary alarm condi tions If the power supply is interrupted the relay is de energized as if in alarm condition to alert the operator In addition to the user selectable alarm relays the meter is equipped with the Fail Safe alarm feature The Fail Safe feature protects the process against critical errors arising from power interruptions surges and human errors This sophisticated yet easy to use system resolves these predicaments on two fronts hardware and software To elimi nate problems of blackout and line failure the alarm function operates in a Normally Closed state and hence alarm is triggered if the wires are tripped or when the power is down This is an important feature since with most meters the alarm terminals close only when an abnormal situation arises how ever due to line interruption no alarm is sounded causing extensive damage On the other hand software is employed to set off the alarm in abnormal circumstances for example if the dosing terminals are closed for too long a period In both cases the red LED will also provide a visual warning signal The Fail Sate mode is accomplished by connecting the exter nal alarm circuit between the FS C Normally Open and the COM terminals This way an alarm will warn the user when pH goes over the alarm thresholds the power breaks down and in case of a broken wire between the pr
48. alue of the first blinking digit by pressing the 0 key TD LI ct To move to the next digit press 0 key once the first digit will be fixed and the second one will start blinking 5 B e Pressing repeatedly the 0 key will result in cycling through the digits on the primary LCD Once a value is selected the corresponding current is immediately erogated by the selected output and no confir mation is required The minimum and maximum values let out are 3 6 22 mA for the 4 20 mA output and 0 22 mA for the 0 20 mA output This depends on the possibility of the fault currents to be let out see Alarm error configuration section for more details To verity the erogated current use a multimeter connected to the corresponding output To exit the test press the CFM key the instrument will re main in the setup menu and move to the next setup item HOLD DIGITAL INPUT TEST This test is made to verify if the instrument recognizes the digital input signal at the hold input To enter the test procedure select the setup item t 06 and an OFF blinking message will appear on the LCD e Press the 0 orf key once and the message will switch to a blinking GO Press CFM key to confirm or the 0 or 1 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the next
49. ameter value is changed by the user the same thing happens also for the setup code selection In some situa tions user cannot succeed in getting a parameter set to the desired value if related parameters are not changed accord ingly first e g to set a pH high set point to 10 00 the high alarm must be set to a value greater than 10 00 first 4 The hardware identifier is a read only value 5 When the controller is powered RTC is checked to see if an RTC reset occurred since last software initialization if one ever took place If this is the case the RTC is initialized with the default date and time 01 01 2000 00 00 An EEPROM reset does not affect the RTC settings 6 Output is pH or mV depending on the controlled magni tude setting pH or ORP 7 The value for error configuration is coded like this Error Alarm 22 mA 3 6 mA Hold Auto SMS Configuration Relay fault fault mode cleaning sending Value current current 0 Off Off Off Off Off Off 1 On Off Off Off Off Off 2 Off On Off Off Off Off 3 On On Off Off Off Off 4 Off Off On Off Off Off 5 On Off On Off Off Off 6 Off Off Off On Off Off 7 On Off Off On Off Off 8 Off On Off On Off Off 9 Off On Off Off 10 Off Off On On Off Off 11 On Off On On Off Off 12 Off Off Off Off O
50. an not be performed if the Reference electrode broken or dirty error is active For pH calibration the temperature probe should be connected to the process meter All calibrations reter to the process controller No calibration for the Digital Transmitter can be performed by the process controller but the Digital Transmitter Calibrator must be used for that pH CALIBRATION Initial Preparation The pH and ORP calibrations can not be initiated while the process controller is configurated to take measurements from the Digital Transmitter It is recommended to perform pH calibration when the probe is replaced and after any cleaning action To perform any pH calibration procedure the instrument has to be set as pH controller Pour small quantities of pH 7 01 HI 7007 and pH 4 01 HI 7004 or pH 10 01 HI 7010 solutions into individual beakers If possible use plastic beakers to minimize any EMC interference For accurate calibration use different beakers for each buffer solution the first one for rinsing the electrode and the second one for calibration By doing this contamination between buffers is minimized RINSE CALIBRATION lil 7007 7007 Enter the calibration mode select the pH calibration by moving through the menu with the 0 and keys then press the CFM key Choose the pH buffer set between the two available ones the standard set 4 01 7 01 10 01 and
51. aper paying attention not to scratch the surtace and wash thoroughly with water With industrial applications it is always recommended to keep at least one spare electrode handy When anomalies are not resolved with a simple maintenance change the elec trode and recalibrate the controller to see if the problem is alleviated DEFINITIONS DEVIATION EEPROM FAIL SAFE ALARM GLP HYSTERESIS IN LINE CLEANING NIST PID Same as proportional band but expressed in units of the controlled magnitude e g 1 pH 50 Electrically Erasable Programmable Read only Memory per manent memory Signaling of the alarm by de energizing the alarm relay in stead of energizing it That protects against power failures and interruptions of the alarm relay external wires Good Laboratory Practice Interval that must be passed over by the controlled magni tude in the opposite direction after having activated a relay before deactivating it in order to avoid uninterrupted activa tion deactivation of the relay Automatic procedure to stop control clean the electrode and then activate control again National Institute of Standards and Technology Proportional Integrative Derivative control POTENTIAL MATCHING PIN Pin for connection of the potential matching or grounding PROPORTIONAL BAND PWM RAM RTC SETPOINT steel bar which must be immersed into the measured fluid and is used together with a differential input
52. as follows RS 485 B14 OOOO There is an internal short between the two A pins and be tween the two B pins The instrument has no internal line termination To terminate the line an external resistor equal to the characteristic line impedance typically 120Q must be added at both ends of the line RS485 line 120Q 1200 Unit 1 Unit n The RS485 can connect up to 31 HI 504 on the same physi cal network All the units are slave devices and are monitored and controlled by a single master station typically an indus trial PLC or PC Each HI 504 unit is identified by its Process ID number included in the OO to 99 interval which corresponds to the Process ID configured through the setup item G 11 If the instrument does not recognize the address within the command string then it discards all the following bytes As additional feature the controller is also provided with two pins BV and GND in order to apply the Fail Safe Open Line protection method To avoid erroneous readings in Open 59 Line conditions pull up and pull down resis tors should connected as shown Fail Safe resistors are connected only to one unit in the line and their value depends e on the application and characteristic imped ance of the connection cable e GND e
53. ation With the tester check the real current value provided by the instrument at the output port If this value is different from the expected one it is possible to change the current erogated by the instrument pressing the 0 orf key Adjust the value until it matches with the first point of cali bration then press CFM to confirm The instrument will turn to the second calibration point 20 mA The calibration procedure is the same as for the first point Once the instrument is calibrated for both points and con firmed it will exit from the calibration menu TEMPERATURE CALIBRATION 20 Prepare a beaker containing crushed and water at 0 C 32 F and another one with hot water at 25 C 77 F or 50 C 122 F Use a Checktemp or another cali brated thermometer with a resolution of 0 1 as a reference thermometer Immerse the temperature probe in the beaker with ice and water as near to the Checktemp as possible The instrument can support Pt100 or Pt1000 temperature sensor and calibration can be performed with anyone of these two probes After entering the calibration mode move through the menu using the 0 or O key to choose the temperature and the correct kind of used probe the pri mary LCD shows C and the x secondary LCD gives indication about the kind of probe 1007 in E dicates a Pt100 probe while 1000 stands for a Pt1000 probe Press the
54. battery may be run down and should be replaced Rinse the electrode tip with distilled water Immerse the tip bottom 4 cm 172 in the sample and stir gently for approx 30 seconds For a faster response and to avoid cross contamination of the samples rinse the electrode tip with the solution to be tested before taking your measurements To minimize clogging and assure a quick response time the glass bulb and the junction should be kept moist and not allowed to dry out This can be achieved by installing the electrode in such a way that it is constantly in a well filled with the sample stream or tank When not in use replace the solution in the protective cap with a few drops of HI 70300 Storage Solution or in its absence HI 7082 KCI 3 5M Solution Follow the Preparation Procedure above before taking mea surements NEVER STORE THE ELECTRODE IN DISTILLED OR DEION IZED WATER PERIODIC MAINTENANCE Inspect the electrode and the cable The cable used for the connection to the controller must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb Connectors must be perfectly clean and dry If any scratches or cracks are present replace the electrode Rinse off any salt deposits with water CLEANING PROCEDURE IMPORTANT TROUBLESHOOTING General Soak in Hanna 7061 General Cleaning Solution for approximately 5 hour Removal of films dirt or deposits on
55. begins T with the scrolling message Button test Press LCD and The EEPROM selftest procedure involves verifying the stored CAL and SETUP together to escape EEPROM checksum To enter the EEPROM test procedure select the setup item t 02 and an OFF blinking message will appear on the EEPROM SELFTEST mr wim Da nd an LCD e Press the 0 orf key once and the message will switch to a blinking GO LCD will then show only e Press CFM key to confirm or the 0 or 1 key again to colon return to the previous status f confirmation is given when the OFF message is blink ing no action is performed and it will move to the next setup item t 03 After confirmation the selftest pro cedure begins with the tESt message blinking for a few seconds As soon as one more key is pressed the appropriate seg ment out of 88 88 corresponding to the pressed key will light up on the screen 95 RELAYS AND LEDS TEST 96 During this time the instrument pertorms the EEPROM check and if the checksum is correct the Stored data good message will scroll on the primary display ame e Vo l D d BN After that the meter will remain in setup menu and move to the next setup item If the checksum fails a fault alarm is generated and the following message appears on the LCD Stored data error Press UP button to reset stored data or RIGHT button
56. bination 0 and 0 keys together for service the same key combination is used both to start and to stop the hold mode the key combination acts as the hold digital input To activate the hold mode in this way password is required the daily programmable control timing see setup items C 41 through 57 anerror event see also the Alarm Error Configuration section the hold start stop 85485 command theservice hold Calibration and Setup in the Digital Trans mitter During hold mode control and control relays are disabled If the meter is in idle or control mode and displaying measurements the last measured value both for temperature and pH ORP is frozen on the display M the secondary LCD shows Hn the temperature value can be displayed on the secondary LCD by pressing and holding the 0 key when the O0 key is released the message comes back on the secondary LCD If the pH or mV or temperature values T are not available because the meter did note take any measurement be fore going to hold mode then the oa T primary or the secondary LCD shows dashes pH 1 a rn There are two digital insulated inputs one for hold mode and one for advanced cleaning 55 56 Note All the alarm signals red LED alarm relay fault currents are suspended while in hold mode the correspondent error events are not closed unless the hold mode
57. broken 20 On On Off Off Off Temperature level 21 On On Off Off Off Digital transmitter error 40 On On Off On Off Cellular error 50 On On Off Off Power reset 90 Off On Off Off Off EEPROM corruption 91 On On Off Off Watchdog reset 92 Off On Off Off Off 101 Note Note When the Digital Transmitter is used these errors are generated in the Digital Transmitter but they are handled as if they were generated in the Process Controller If the condition to generate a Reference electrode broken or dirty error is met the error is not generated immedi ately but first auto cleaning is performed up to 2 times the cleaning type depends upon relays configuration If the Reference electrode is not OK after two auto cleaning the Reference electrode broken or dirty error is generated The second auto cleaning cycle is done only when the first one is not enough Both the cleaning modes simple or advanced cleaning when enabled through the relay mode items are triggered upon the Reference electrode broken or dirty error The pH electrode broken or leakage and the Reference electrode broken or dirty errors are never generated if the correspondent tests are not enabled through setup items 1 13 and 1 14 The Reference electrode test can not be made if the Potential matching pin is not in use see setup item 1 04 3 6 mA fault current is always off unless the 4 20 mA output has be
58. ce has to be configured through O 31 to an swer to modem calls That device will be the one controlling the modem or the cellular module To avoid conflicts the following must never be done put more than one modem or cellular module in the same RS485 network set O 31 to On in more than one device in the same RS485 network set to CELL in more than one device in the same RS485 network SMSs can not be sent from more than one HI504 set O 31 to On in one device and POO to CELL in another one within the same 85485 network put a PC monitor within the RS485 network Provided the above any Hanna instrument with RS485 port can be attached to the network and monitored remotely When making a call after the data connection is established the NNPWD command where NN is the address of the device controlling the modem i e the one with O 31 set to On must be issued by the remote computer within 15 seconds When the data connection is up the RS485 protocol for a remote connection is all the same as for a local network see the previous section An automatic disconnection takes place if no character is received in the RS485 network in 3 4 minutes When a modem connection is up the cellular module does not send any SMS If an error for which the SMS sending is enabled is active after closing the modem connection an alarm SMS will be sent by the 504 after disconnection pH ORP
59. ce is configured to measure pH If an amplified electrode is used the pH electrode test must be disabled through the setup item 1 13 The reference electrode test is performed when the following conditions are satisfied the matching pin has been enabled through the setup item 1 04 the test has been enabled through the setup item 1 14 the device is in one of the following modes idle last cali bration data scrolling event log file scrolling the device is not in hold mode When testing or calibrating the instrument through a pH ORP simulator like HI 931001 or HI 8427 tempo rarily set the items 1 13 and 1 04 to OFF SOLUTION COMPENSATION The instrument is provided with a solution compensation func tion which can be enabled through setup menu setup item 5 00 This function is a compensation curve actually a line defined through 2 couples of pH and temperature values e point 1 pH T point 2 pH The only restriction on the values of pH and temperatures is 1 0C When the solution compensation is enabled the pH reading will be equal to pH with solution compensation pH without solution com pensation pH pH T T x 25 T pH pH J T T x T pH where T is the current temperature reading Celsius degree units With this kind of compensation formula the pH value with solution compensation will be the same i e pH pH T
60. e EMC performance of equipment the recommended cables noted in the user s manual must be used Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance To avoid electrical shock do not use these instruments when voltage at the measurement surface exceed 24VAC or 60VDC To avoid damage or burns do not perform any measurement in microwave ovens Unplug the instruments from power supply before the replacement of the fuse External cables to be connected to the rear panel should be terminated with cable lugs UNDERWRITERS LABORATORIES APPROVAL The HI 504 process controllers series complies with the pro duction standards required by the Underwriters Laboratories UL one of the most important international authority for devices safety and has therefore obtained the UL certifica tion C US LISTED PROCESS CONTROL EQUIPMENT 42BA SALES AND TECHNICAL SERVICE CONTACTS Australia Tel 03 9769 0666 Fax 03 9769 0699 China Tel 10 88570068 Fax 10 88570060 Egypt Tel amp Fax 02 2758 683 Germany Tel 07851 9129 0 Fax 07851 9129 99 Greece Tel 210 823 5192 Fax 210 884 0210 Indonesia Tel 21 4584 2941 Fax 21 4584 2942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fox 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 South Africa
61. e Pro cess Controller To understand which cause generated the Digital Trans mitter error the Digital Transmitter must be examined through its calibrator pH VALUES AT VARIOUS TEMPERATURES Temperature has a significant effect on pH The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions For manual temperature calibration please refer to the fol lowing chart pHVALUES 40 686 7 01 9 18 1001 For instance if the buffer temperature is 25 C the display should show pH 4 01 7 01 or 10 01 at pH 4 7 or 10 buffers respectively At 20 C the display should show pH 4 00 7 03 or 10 06 The meter reading at 50 C will then be 4 06 6 98 or 9 82 ELECTRODE CONDITIONING AND MAINTENANCE PREPARATION TEST MEASUREMENT STORAGE Note Remove the electrode protective cap DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT This is normal with electrodes and they will disappear when rinsed with water During transport tiny bubbles of air may have formed inside the glass bulb The electrode cannot function properly under these conditions These bubbles can be removed by shaking down the electrode as you would do with a glass thermom eter If the bulb and or junction are dry soak the electrode in HI 70300 Storage Solution for at least one hour electrode does not respond to pH changes the
62. e changed as described above Ea T e By pressing the 0 key again all the digits will be fixed f CFM key is pressed the selected item is confirmed the secondary LCD will show the setup item code while the primary LCD will display the current item value If a fixed set of values is available for the selected item use the O0 0 key to switch between them 25 26 y Lt i m Otherwise if a numeric value has be entered for the item use the 0 orf key to change the value of the blink ing digit and the 0 key to cycle through the number s digits V1 OT a E nl oan Tene 1 C3 ITN Note VIT gt Once a value is set press the CFM key to confirm The instrument will turn to the next item and the new item s value will be displayed on the primary LCD If a wrong value is confirmed the WRONG indicator starts blinking arr AL CL ri the new value is not accepted and the instrument will not switch to the E 4 Fa next item until a correct value will be confirmed Instead of selecting the item manually it is possible to cycle through all the items of a selected group by pressing re peatedly CFM key The procedure to modify the item s value is the same described above If the last item of the group is reached by pressing the CFM key again the primary d
63. e for future use and set to O B bit 6 free for future use and set to O B bit 7 free for future use and set to O Each bit is equal to 1 if the correspondent error is ON and equal to 0 if the correspondent error is OFF After issued the NNHLD CR command to enter the hold mode the command has to be issued again for exit from the mode If the device is already in hold mode when the NNHLD CR is issued the first time the command has no effect When a NAK or CAN char is sent the whole process reception buffer is cleared When the meter is receiving and answering to commands other than PHR MVR TMR AER STS the pri mary LCD displays r485 SHORT MESSAGING SERVICE SMS It is possible to connect the Hanna 504900 GSM mod ule to the RS485 port of the instrument This connection enables the instrument to send SMSs to one or two cellular phone s and through this feature the device can be monitored at ev ery moment Moreover if an error occurs on the HI 504 it is possible to have an SMS sent to the cellular phone s advis ing immediately the user about the problem To use the SMS feature a SIM card able to make voice calls must be used The SMS feature can be enabled through the setup item POO by selecting CELL for cellular module connection instead of PC connection e rm cM SE Note Before enabling this feature it is necessary to ente
64. e phone numbers CELL and the MEM tag will blink alternatively on the LCD The numbers are saved on the first two locations of the phonebook area in the SIM card If there are other phone numbers previously stored on these locations they will be overwritten If only one phone number is entered in item 2 or P03 then the location correspondent to the other num ber on the SIM card phonebook area will be automatically erased 2 On the other case if no phone number has been set in items 2 and both the items filled with cet eee eh aya ew then when the connection is activated when CELL is confirmed on item the in strument tries to read the SIM card looking for some num ber associated with the code HI504PH1 or HI504PH2 previously saved by the instrument on the SIM card If it finds any then the phone number s will be loaded by the instrument items PO2 and automatically updated 73 74 Note Note the cellular module initialized and ex omi a the SMS service activated During LILL the reading ofthe SIM card and the MEM tag will blink alter por natively on the LCD 2227 Otherwise if the instrument does i not find any correct number then mn it will not be possible to activate the SMS service the WRONG c ADOD tag will blink on the LCD If the PIN set in is wrong then it will be not possible
65. ea 43 PI D CONTROL MODE sure falls below setpoint value minus hysteresis Such a behavior is suitable to control an acid dosing pump ON OFF Setpoint Setpoint 14 Hysteresis A relay enabled as a low setpoint is energized when the pH value is below the setpoint and is de energized when the pH value is above the sum of setpoint and the hysteresis This operational mode may be used to control an alkaline dosing pump ON OFF Setpoint Setpoint 14 Hysteresis PID control is designed to eliminate the cycling associated with ON OFF control in a rapid and steady way by means of the combination of the Proportional Integral and Derivative control methods With the proportional function the duration of the activated control is proportional to the error value Duty Cycle Control Mode as the measurement approaches setpoint the ON relay energized period diminishes pH The following graph describes the pH process controller be havior Similar graph may apply to the mV controller n 97 During proportional control the process controller calculates the relay activation time at certain moments ty t T t 2T etc The ON interval the shaded areas is then dependent to the error amplitude With the integral function reset the controller will reach a more stable output around the setpoint providing a more accurate control than with the ON OFF o
66. eached Please check the HI 504 SIM card charge level will be sent by the instrument to the programmed phone number s This particular situation is managed as an error occurrence and a confirmation of the SMS reception is waited In this case the user is supposed to extract the SIM card from the cellular module as soon as possible and to check the remaining credit using its own cellular phone and calling the network operator When a confirmation is given to the message the Cellular error is switched on and no more messages will be sent by the instrument in case of error occurrences To disactivate the Cellular error it is necessary to modify the item 04 Every time a recharge of the cellular module SIM card is performed the corresponding expiration date has to be manu ally updated in the Setup menu items PO7 POY A check is pertormed daily between the current see Real time clock subgroup in Setup menu and the expiration date Two weeks before the expiration date the message Rem_msg xxx The 504 SIM card will expire on DD MM YYYY Please charge or substitute it is sent to the programmed phone number s The same message will be sent again also one week before and the day before the expiration date This particular warning message does not need confirma tion In this case the user has to recharge or substitute the SIM card The sending of the repeated warning messages will be 77 78
67. ed from Prob to trAn respectively For example if the user was using a pH electrode connected to the BNC and at a later time he starts using the transmitter and after that the measurement input selection is reverted back to Prob it is not necessary to calibrate the pH electrode again 13 The alarm relay can be energized continuously by se lecting LE for level or with a pulse by selecting PULS for pulse The pulse length is fixed to about 5 seconds 14 When the instrument is configured as ORP controller some of the above items or the item values are not anymore available to the user 15 Relay 3 an relay 4 must be both set to ACLE in order to have the advanced cleaning enabled If only one of them is set to ACLE then it will behave as it were set to OFF When the advanced cleaning is enabled relay 3 is used for water pouring while relay 4 is used for detergent pouring 16 HOLd and USEr are effective only when O 10 and 20 are set to In the other cases the analog output is set automatically to the minimum value upon hold mode i e O 14 O 15 and O 24 O 25 have no effect if OD 10 SEt and O 20 SEt respectively 17 measured value is the reading value with a null read ing offset adjustment 18 if the device is set for MTC item G 01 to USEr then items F 10 and E11 cannot be modified nor seen When item G 01 is changed from
68. ed to track the Pt100 Pt1000 error closing The setup item 01 is automatically changed back to when the Pt 00 Pt1 000 error is closed During error condition if the user decides to start working in manual mode and so manually close the error he has to go in setup menu item G 01 change the value to automatic compensation without giving confirmation then change again to USEr and finally give confirmation by pressing the CFM key If the setup item 01 is set to USEr a manual temperature compensation will be performed no matter whether the tem perature probe is connected to the Pt100 Pt1000 input or not The start value for temperature when entered the manual mode is the one stored at G 02 Manual or probe error temperature If the user wants to change the temperature value while in manual mode he has to press the 0 or O key Pressing once the 0 key it will add 0 19 to the actual temperature value while pressing the D key it will subtract 0 1 C pH pH 2 E 2 c Ln 1 2 o 27 Note For quickly changing the temperature value press and hold down the O or D key the temperature will be incremented decremented of 0 1 C until the total amount is 0 4 C and then the increment decrement will turn to 1 C During these operations both the temperature value displayed and setup item 02 a
69. ed on EEPROM and the following item is displayed The possible transitions in setup mode are the following ENTERING THE PASSWORD 24 Press SETUP to enter the setup mode The primary LCD will display 0000 while the secondary LCD shows PAS The first digit of the primary LCD will blink Enter the first digit of the pass word by using the 0 orf key Then move to the next digit with 0 and enter a digit as described above Continue for the last two digits When the whole password has been in serted press CFM to confirm it AE The default password is set at 0000 ENTERING SETUP ITEMS After confirmation of the password the primary LCD will show the name of the first setup group see table while the secondary LCD will display the setup code of the first item of the group re re 29 ru ru By pressing the 0 key it is possible to cycle through the setup groups the secondary LCD will always show the code of the first item of the group Once a group is selected it is pos sible to choose an item manually Pressing the 0 key the first digit of the setup code will start blinking NL Now it is possible to change its value ae by pressing the 0 or key m e Pressing the 0 key again the first digit will be fixed while the second digit starts blinking its value b
70. elay 3 contin ues to be energized If the device is in normal measurement mode the rinSinG message scrolls on the LCD Hold mode end delay if the device was controlling when the cleaning action started then the hold mode end delay must expire before restarting control The time each of these actions last for can be configured through setup menu items 1 00 or L 10 L 11 L 12 When performing a cleaning action either simple or ad vanced with the device in normal measurement mode the secondary LCD displays a countdown for the seconds re maining to the cleaning action end Vti l al If the Repeated cleaning number value setup item L 16 is different from O then the advanced cleaning is repeated number of times equal to this value after the first cycle e g one more cycle if L 16 1 Note Note If a cleaning session is being performed it is possible to stop it by pressing and holding the 0 and O keys together 0 key first or through RS485 by sending the appropriate com mand When the advanced cleaning is aborted in any case a complete rinsing phase is performed before the actual ter mination of the cleaning action If the abortion is issued dur ing the rinsing phase the phase continues normally till its natural end Calibration of whatever input or output can not be initiated while the Simple or Advanced Cleaning is in progress Con versely cleaning can not be t
71. en configured the 22 mA fault current is always off unless the 0 20 mA or 4 20 mA output has been configured The 3 6 mA and the 22 mA fault current cannot be both set to ON If two errors are active when output is configured as 4 20 mA 1 or 2 and one of them is configured for the 22 mA fault current while the other one is configured for the 3 6 mA fault current the 22 mA current is let out to the analog output The fault current is automatically disabled when the ana log output is used for controlling item O 10 equal to SEt no matter whether the fault current itself has been config ured On or OFF In case of a Temperature probe broken error the fault cur rent if configured is let out to both analog outputs unless O 20 is equal to SEt In all the other cases only the first analog output for pH and ORP can let out the fault current The Cellular error is never activated if the serial lines are not configured for cellular module connection The error will be active if the instrument is not able to communicate Note Note with the cellular engine for example because the serial cable is broken or because the cellular engine is not pow ered if the number of available SMS is finished menu item P 04 or if the SIM expiration date is overrun Power reset and the Watchdog reset errors are active only for the short time of the start up session selftests pro ce
72. et time for setpoint 2 to 999 9 minutes 999 9 mins ys C25 Rate time for setpoint 2 0 0 to 999 9 minutes 0 0 mins yes ALARM ALAr C30 Alarm relay delta value 0 50 to 18 00 pH 1 00 pH ys for setpoint 1 A1 see notes 1 22 25 to 4000 mV 100mV C31 Alarm relay delta value 0 50 to 18 00 pH 1 00 pH ys for setpoint 2 A2 0 see notes 1 22 25 to 4000 mV 100mV C32 Maximum relay ON time 1 60 minutes 6 yes after that an alarm is generated C33 Alarm mask time 00 00 to 30 00 minutes 00 30 yes PROGRAMMABLE CONTROL TIMING tIME C41 Hold time start 00 00 to 23 59 see note 8 00 00 yes C42 Hold time stop 00 00 to 23 59 see note 8 00 00 yes Code Valid Values Default Present for ORP C51 Monday hold mode OFF Disabled OFF yes enable On Enabled C52 Tuesday hold mode OFF Disabled OFF yes enable On Enabled C53 Wednesday hold mode OFF Disabled OF yes enable On Enabled C54 Thursday hold mode OFF Disabled OFF yes enable On Enabled C55 Friday hold mode OFF Disabled OF yes enable On Enabled C56 Saturday hold mode OFF Disabled OF yes enable On Enabled C57 Sunday hold mode OFF Disabled OF yes enable On Enabled C60 Proportional control mode 01 00 30 00 minutes 05 00 yes period C70 Hold mode end delay 00 10 99 seconds 00 ys OUTPUT RELAYS rEL
73. ey to confirm calibration The meter will show the scrolling message Press CFM again to confirm the current buffer or right to escape to prevent from confirming the calibration point inadvertently Vt w w ali 1 ru l DN ON l Pressing again CFM the secondary LCD will display the second expected buffer value Note One point calibration In the second case pH value not close to the buffer the meter will remain in the same state until the reading be comes unstable or the calibration mode is quitted For the second buffer value it is possible to choose be tween pH 4 01 and pH 10 01 or pH 4 01 and pH 9 18 if the NIST set has been selected Use the 0 or O key to switch between the two possibilities Once selected the buffer the procedure is the same as for the first calibration point time out of 2 5 minutes is present for the pH electrode response time During calibration if the pH reading is not stable after 2 5 minutes the device displays twice the scroll ing message time out then shows WRONG and it is not possible to complete calibration Atthe end of calibration with the meter set as pH control ler the instrument checks if the offset is between 30 and 30 mV and the slope between 53 5 and 62 mV pH If the values are not within these ranges the message Old ProbE scrolls twice across the LC
74. ge pH brk Reference electrode broken or leakage Ref brk Old pH probe error Old prb Dead pH probe error Dead prb Calibration time out error Cal tout Temperature probe broken error Temp brk Digital transmitter error Tx err Cellular error Cell err Power reset error Pwr rst EEPROM corruption error EEPr cor Watchdog error Wtc dog Temperature level error Temp lvl If no error is active then the correspondent string will be No error If at the information request the instrument is in Hold mode the Hold string is added before the pH or ORP indica tion If the instrument is performing a cleaning action The Cleaning string is added before the readings information Note Note The information about SIM charge and expiration date are not saved in the SIM card but are managed by the network operator the instrument can not get directly the information To prevent the discharge of the SIM card the user has to configure manually accordingly with the credit stored on the SIM card the maximum number of SMSs that can be sent item 04 Every time an SMS is submitted the item PO4 is updated and it will always indicate the remaining number of messages that can be sent by the instrument When the number of remaining messages is going to reach zero the lower limit depends on the value of item 5 the message Rem msg Maximum number of Sms r
75. he or O key again to return to the previous status If confirmation is given when the ree er P 0L OFF message is blinking no ac ME tion is performed and it will move dee to the next setup item t 01 Za 93 KEYBOARD TEST 94 display test is announced by a scrolling Display test 504 y pata Vo Lit 1 4 5 gt For example if SETUP and keys are pressed together the All the segments light up for a mV pH DATE LCD will look like this few seconds and then switch off before exiting the display test pro cedure and moving to the next eve setup item t 01 To enter the keyboard test procedure select setup item 1 01 A blinking OFF message will appear on the primary LCD e Press the O or O key once and the message will switch to a blinking GO Note A maximum of two keys may be pressed simultaneously to e Press CFM to confirm orthell or D key again to return be properly recognized to the previous state To exit the keyboard test procedure press LCD CAL and e f confirmation is given when the OFF message is blink SETUP simultaneously the instrument will remain in the ing no action is performed and it will move to the next setup menu and move to the next item t 02 setup item t 02 Once confirmed the keyboard selftest procedure
76. hen a NNGETCNN lt CR gt command is received from the PC the reply lt 5 gt lt gt is sent back 1 27172 3 4 To perform a NNSETCNN command the general pass word has to be sent in advance through the NNPWD command See above forthe password effectiveness time out Some special setup items not be set through RS485 com mands In particular it is not possible to access any setup item that performs a test on the instrument and it is not pos sible to configure the hardware identifier setup item C 12 The NNSET and NNGET commands when used for password items baud rate hardware identifier FOO and E10 items POO through 09 items are answered with NN CAN As soon as the process controller realizes that a command has been received it sends one of the following answers 1 NN ACK char 0x06 if the process controller recog nizes the set command and performs the requested task 2 NN STX char 0x02 DATA ETX char 0x03 if the re ceived command is a request of data 3 NN NAK char Ox15 if the process controller does not recognize the command or if the command syntax is wrong 63 64 4 NN CAN char Ox18 if the process controller can not answer to the request e g the current process model does not support the request the given general password is wrong etc The NN in the front of the answer is the Process ID 00
77. hree digits number indicating the remain ing messages XXXXX stands for a text string correspondent to the activated error Here is reported a list of all the possible error strings Alarm for setpoint 1 Alarm for setpoint 2 Max relay ON time error Life check error pH electrode broken or leakage Reference electrode broken or leakage Old pH probe error Dead pH probe error Calibration time out error Temperature probe broken error Digital transmitter error Power reset error Cellular error EEPROM corruption error Watchdog error Temperature level error After the submission ofthe message a phone call is made by the instrument to the programmed number s This is done because the SMS can be received with a considerable delay due to network overload while the phone call takes place immediately and has a long ring which is more likely to be heard The phone call advises the user that something hap pened on the HI 504 and a SMS is going to be received It is not necessary for the user to answer the phone call and it is suggested to close it without any answer When an error occurs a confirmation of the message recep tion is waited by the instrument The confirmation can be done by the receiver simply calling the HI 504 phone num ber number of the GSM module The instrument will answer and send an SMS with its current status this confirmation i
78. is Enn Fn oL X By pressing the 0 0 key itis possible to modify the value of the blinking digit and pressing the 0 key it is possible to skip to the next digit When the end of the phone number is reached the user has to fill the remaining positions with character The space reserved for a phone number is of 20 digits When the last position is reached by pressing the 0 key the pri mary display will return to the first four digits recognizable by the minus sign in the front of the number In this way it is possible to run cyclically through the number by pressing repeatedly the 0 key Note When the desired phone number is entered press CFM to confirm The WRONG tag will blink if the user tries to confirm an incorrect number the first digit of the number has to be on the first position and the character have not to be present in the middle of the number The WRONG tag will disap pear only when a digit of the phone number is modified ame 1 ae Two cases have be distinguished when the cellular module connection is selected 1 If one or two phone numbers have been set in items 2 and then when the connection is activated when CELL is confirmed on item POO the two numbers will be saved on the SIM card of the instrument with the codes HI504PH1 and HI504PH2 and the GSM module ini tialized During the saving of th
79. is shorter than characters fill the code with zeros in front for example the country code 49 must be entered as 049 orthe country code 1 must be entered as 0017 The modem present in the HI504902 module is Telecom certified for working in all the following countries Argentina Australia Austria Belgium Brazil Canada Chile China Cyprus Czech Republic Denmark Finland France Germany Greece Hong Kong Hungary Iceland India In donesia Ireland Israel Italy Japan Korea Liechtenstein Luxembourg Malaysia Mexico Netherlands New Zealand Norway Philippines Poland Portugal Russia Singapore Slovak Republic South Africa Spain Sweden Switzerland Taiwan Turkey United Kingdom United States If your country is not present in the list please contact your Dealer 79 80 The modem connection both with 504900 and HI504902 allows the user to ask the controller from a remote position about its status measurements and to change some param eters while for receiving alarm indications it is necessary to install the HI504900 cellular module Many devices can be monitored through a remote modem connection simply connecting all the devices and the modem or cellular module to the same RS485 network HI 700 GSM module or Modem RS485 Network 0 31 0 31 Off 0 31 Off P 00 CELL P 00 PC P 00 PC if using 504900 P 00 PC if using HI 504902 Only one devi
80. isplay will show the group name and it will be possible to change the group by press ing the 0 0 key At any time for exiting the setup mode press the SETUP key If no modification has been confirmed no setup item is changed Note While in the setup mode if no activity is performed for about 5 minutes after entering the setup mode the mode is auto matically exited and the instrument returns to the previous mode The below table lists the setup codes along with the description of the specific setup items their valid values and whether the item is present for ORP mode Titles in Italic character e g SETPOINT 1 represent different subgroups within the same group The subgroup name e g Set1 is showed when entering the first item of the sub group To scroll through subgroups use the O key Depending on the device model some of the below items or item values may not be available Code Valid Values Default Present for ORP GENERAL GEnE 600 pH ORP ente T ys 6 01 Temperature compensation Automatic NC m USE Manual see notes 9 25 6 02 Manual or probe error 30 to 130 0 C 25 0 m temperature see notes 9 25 6 10 Factory ID 0000to 9999 see 20 0000 ys 6 11 Process ID alias RS485 address 0010 99 see note 20 00 ys 6 12 Hardware Identifier 7 digits identification number read only ys see notes 4 20 6 98 Calibratior hold password
81. l through analog out put section for more details If the meter is set as a pH controller each available output can be used as recorder or in control mode To configure an output to control mode the corresponding item O 10 for output and O 20 for output 2 has to be set to SEt see the Control through analog output section for more details When set to recorder setup item O 10 or 20 set to rECO the output 1 gives a current signal proportional to the actual pH value while the output 2 gives a signal proportional to the temperature value By default the minimum and maximum values of analog output correspond to the minimum and maximum of meter s range For example for a selected analog output of 4 20 mA associated to output 1 the default values are 2 00 and 16 00 pH corresponding to 4 and 20 mA respectively These values can be changed by the user to have the analog output matching a different pH range for example 4mA 3 00pH and 20mA 5 00pH To change the default values enter the setup mode and change the items O 12 and O 13 for output 1 and 22 and O 23 for output 2 The analog output signal range 0 20 mA or 4 20 mA of each output is also selectable through the setup items O 11 and O 21 57 COMMUNICATION SPECIFICATIONS 58 RS485 standard is a digital transmission method that allows long lines connections Its current loop system makes this standard s
82. lator pH ORP Electrode Simulator with LCD Display 4 20 mA Simulator pH Transmitter pH Transmitter with LCD ORP Transmitter ORP Transmitter with LCD Windows Compatible Application Software pH AND ORP ELECTRODE HOLDERS HI 60542 HI 60545 In line electrode holder for direct pipe installation ELECTRODE O RING ELECTRODE HOLDER ELECTRODE LOCKING ASSEMBLY O RINGS 3 4 PROCESS ELECTRODE ELECTRODE HOLDER BODY AM Bypass loop electrode holder O qe gt NPT 88mm mm 30 mm NPT n 12mm 3 4 NPT 2 NPT DIA 76 mm Ne 92 mm 415mm 185 190 mm 140 5 mm 3 4 NPT DIA 50 mm 60501 Immersion electrode holder for tanks vessels baths and open channels ADJUSTER DIA 165 mm 2 Dm MOUNTING FLANGE 2 605011 2 i x lt Adjustable immersion Lengti Max length 69 cm Min length 10 cm ELECTRODE O RINGS iru O 5 Specifications HI 60542 HI 60545 HI 60501 Electrode Holder Material PVC PVC PVC O Ring Material NBR NBR NBR Min amp Max Temperature Min Immersion Length Max Immersion Length Max Pressure
83. ling message Press to confirm the current buffer or right to escape to prevent from confirming the calibration point inadvertently Pressing again CFM the secondary LCD will display the second calibration point Set the HI 931001 or HI 8427 simulator to 350 mV and follow the same procedure as for the first point If the measured value is not close to the calibration value the meter will remain in the WRONG status until the read ing becomes unstable or the calibration mode is exited by pressing the CAL key 23 SETUP MODE The Setup Mode allows the user to set all needed character istics of the meter To enter the mode press the SETUP key and enter the password when the device is in idle or LF control mode If the correct password is not entered the user can only view the setup parameters except for passwords without modify ing them and the device remains in control mode An exception is certain setup items or flags which can activate special tasks when set and confirmed To each setup parameter or setup item is assigned a three characters one letter followed by two digits setup code which is entered and displayed on the secondary LCD The first character identities the group of setup items while the two digits identify the particular item within that group The setup codes can be selected after password is entered and CFM key is pressed When CFM is pressed the current setup item is sav
84. ly before using the instrument It will provide you with the necessary information for correct use of the instrument as well as a precise idea of its versatility If you need additional technical information do not hesitate to e mail us at tech hannainst com This instrument is in compliance with C directives MODEL IDENTIFICATION The models 504XYZ a are pH ORP controllers The meaning of the last letters is according to the following scheme 1 X 2 dual setpoint X 8 single setpoint amp Advanced Cleaning X 9 dual setpoint amp Advanced Cleaning Y 1 ON OFF control Y 2 ON OFF and PID control Z 2 single analog output 2 4 dual analog output 0 24 Vdc ac power supply Q 1 115 Vac power supply 0 2 230 Vac power supply 3 100 Vac power supply 504XYZ a 2003 Hanna Instruments All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner PRELIMINARY EXAMINATION Note Remove the instrument from the packing material and exam ine it carefully to make sure that no damage has occurred during shipping If there is any noticeable damage notify your Dealer or the nearest Hanna Customer Service Center immediately Save all packing materials until you are sure that the instru ment functions correctly Any damaged or defective items must be returned in their original packing
85. m 165 0 mm INSTALLATION Refer to diagram on page 9 O Note Electrode Connect the pH or ORP electrode to the BNC socket 1 at page 9 To benefit from the differential symmetrical input connect the proper electrode wire if available or a cable with a potential matching pin grounding bar to the relevant ter minal 2 at page 9 and enable the differential input through the setup code 1 04 When it is not possible to immerse the Potential Matching Pin together with the pH electrode in the solution asymmetrical input disable the differential input through the setup code 1 04 In this case detach the Potential Matching Pin from its con nector Failure to do so may cause damage of the reference electrode Pt 100 Pt 1000 Terminals these contacts 4 at page 9 connect the Pt 100 Pt 1000 temperature sensor for auto matic temperature compensation of pH measurement In the case of shielded wire connect the shield to pin 4 In the case of a 2 wire sensor con 12 Pt 100 5V NO z Electrode input NC u RS485 B Matching Pin I NO Electrode Ref ov COM z HOLD L2 OUTPUT Pt100 Pt1000 ANALOG OUTPUT
86. m with the controller in the loop If the response has too much over shoot or is oscillating then the system can be fine tuned slightly increasing or decreasing the PID parameters one at a time Example the chart recording in the figure py aside was obtained continuously dosing an alkaline solution to a weak acid solution in a tank The initial settings will be Max slope 3 pH 5 mins 0 6 Note pH min Time delay Tx approx 7 mins Deviation Tx 0 6 4 2 pH Ti Tx 0 4 17 5 mins Td Tx 0 4 2 8 mins time The alarm relay functions in the following manner FSeC NO Normally Open Energized Relay COM FS 0 NC Normally Closed De energized Relay During normal operation no alarm condition the alarm re lay is energized during an alarm condition or power failure the relay will be de energized As long as a separate battery power system is used an alarm will sound High alarm set at 10 pH Low alarm set at 4 pH Example An hysteresis will eliminate the possibility of continuous se quences energizing de energizing of the alarm relay when Relay De energize Alarm n 1 Energized No Alarm 0 412 98 10 W ol the measured value is close to the alarm setpoint The hyster esis amplitude is 0 2 pH for pH and 30 mV for ORP Moreover the alarm signal is generated only after an user selectable time period alarm mask has elapsed since the controlled v
87. materials together with the supplied accessories GENERAL DESCRIPTION MAIN FEATURES The product is a real time microprocessor based pH ORP controller It provides accurate measurements flexible control capabilities and dual alarm signals The system is composed of a case inside which the signal conversion circuitry the microprocessor circuitry and the output power drivers are contained Configurations for measure and control of pH or ORP with two separate sets of control settings Thus no loss of settings occurs when changing from pH to ORP and vice versa Display large LCD with 4 2 17 mm digits and 3 10 mm digits EDs a green LED alarm relay and a red LED for signaling the device status Alarm relay one output relay for alarm condition fail safe mode COM and NC are connected Daily programmable control timing Diagnostic features pH ORP probe check Temperature sensor Pt100 or Pt1000 type with automatic recognition and damage test Hold management including hold digital input to enter hold mode with an external trigger Logging of the last 100 error configuration calibration and cleaning events Calibration and Setup procedures are password protected Calibration pH calibration at 2 points with two possible sets of buffers either 7 01 4 01 10 01 or 6 86 4 01 9 18 or at 1 point with user selectable value Temperature compensation of the HANNA standard b
88. n Off 13 On Off Off Off On Off 14 Off On Off Off On Off 15 On On Off Off On Off 16 Off Off On Off On Off 17 On Off On Off On Off 18 Off Off Off On On Off 19 On Off Off On On Off 20 Off On Off On On Off 21 On On Off On On Off 22 Off Off On On On Off 23 On Off On On On Off 24 Off Off Off Off Off On 25 On Off Off Off Off On 26 Off On Off Off Off On 27 On On Off Off Off On 28 Off Off On Off Off On 29 On Off On Off Off On 30 Off Off Off On Off On 31 On Off Off On Off On 32 Off On Off On Off On 33 On On Off On Off On 34 Off Off On On Off On 35 On Off On On Off On 36 Off Off Off Off On On 37 On Off Off Off On On 38 Off On Off Off On On 39 On On Off Off On On 40 Off Off On Off On On 41 On Off On Off On On 42 Off Off Off On On On 43 On Off Off On On On 44 Off On Off On On On 45 On On Off On On On 46 Off Off On On On On 47 On Off On On On On 37 38 8 The hold mode is never enabled by the control timing if the hold time start is the same as the hold time end Items C 41 and C 42 apply to all days The hold mode can be enabled all day by using items C 51 through C 57 9 See the Temperature compensation subsection for more details on how the Automatic temperature compensation and Manual temperature compensation work 10 Whenever the pH ORP selection item is changed from pH into ORP or vice versa all of the calibration and setup data regarding pH when changing to ORP or ORP when changing to pH are kept
89. ng events no meaning The tokens format is described here below event code errors ERNN e g ERO for Setp 1 alarm event code setup SCNN e g SrO1 for current month event code calibration CALE always the string CALE event code cleaning CLEA always the string CLEA siart date ddmmyy 010798 for July 1 1998 start_time hhmm e g 1735 for 5 35 pm end date active errors just the letter N end date not active ddmmyy 020798 for July 2 1998 end time active errors just the letter N end_time not active em hhmm e g 0920 for 9 20 am desA errors N just the letter N desA setup P P C C C C setup item format prev value desA calibration XOrPX XX CX UOLUX 0 201 4 201 0 202 4 202 desA cleaning AdCL for advanced cleaning SIC for simple cleaning desB errors N just the letter N desB setup setup item format new value desB calibration N just the letter N desB cleaning N iust the letter N See above in this section for the description of setup item format Events logged in the event log file in chronological order i e record number 1 refers to the oldest event When the event log file is full the oldest event is replaced with the oncoming one In order to speed up the updating of a remote monitor for the events the NNEVF lt
90. nique of ana lyzing a process response curve to a step input This procedure allows only a rough setting of the PID param eters and could not fit all the processes It is suggested that and D parameters be set by technical personnel because their inadequate values may cause un desired behaviors of the system Connecting an external device chart recorder or PC to the controller the procedure is easier and doesn t need the use of hand plotting the process variable pH or mV 1 Starting from a solution with a pH or mV value different trom the dosed liquid at least a 3 pH or 1 50mV difference turn on the dosing device at its maximum capacity without the controller in the loop open loop process Note the starting time 2 After some delay the pH or mV starts to vary After more delay the pH or mV will reach a maximum rate of change slope Note the time that this maximum slope occurs and the pH or mV value at which it occurs Note the maximum slope in pH or mV per minute Turn the system power off 3 On the chart draw a tangent to the maximum slope point until intersection with the horizontal line corresponding to the initial 47 ALARM RELAY 48 pH or mV value Read the system time delay Tx on the time axis 4 The deviation Ti and Td can be calculated from the following Deviation Tx max slope pH or mV e Ti Tx 0 4 minutes Td Tx 0 4 minutes 5 Set the above parameters and restart the syste
91. nstrument will try repeatedly to initialize the cellular engine and the error will be disactivated only after a successful initialization or if the SMS service is disabled by setting item POO to PC All the settings of the SMS group in the Setup menu are the same for both pH and ORP configuration MODEM CONNECTION Note Note Note Note modem connection can be established between HI504 and a remote computer over telephone line It is possible to make two different type of remote connection Overthe GSM network connecting the HI504900 cellu lar module to HI504 RS485 port To enable the modem connection with HI504900 first configure the cellular phone referto Short messaging service section for more details and in particular set item POO to CELL and finally set item O 31 Modem calls answer enable to On A SIM card able to receive data calls must be used Over astandard analog telephone line connecting the HI504902 modem module to HI504 RS485 port To enable the modem connection with 504902 first set item POO to PC then set item O 31 to On and finally set item O 32 with the dialing code of the country where the instrument is installed for example 049 for Germany or 001 for United States The HI504902 modem module must be connected to 504 RS485 port not necessary to telephone line and switched on while the previous configuration is carried out If the country code
92. nt for ORP TEST tESt 100 Displaytest OFF skip without testing yes GO To start the display test 101 Keyboard test OFF skip without testing yes G0 To start the keyboard test 102 EEPROMtest OFF To skip without testing OFF yes G0 To start the EEPROM test 103 Relays and LEDs test OFF To skip without testing OFF yes GO To start the test 1 04 Analog output test To skip without testing yes GO To start the test 1 05 Analog output 2 test To skip without testing yes GO To start the test 106 Hold digital input test OFF skip without testing OFF yes 60 To start the test 1 07 Advanced cleaning OFF To skip without testing yes digital input test G0 To start the test Warning deaning adions could be triggered by the input going high during the test see note 23 1 08 Watchdog test OFF To skip without testing OFF yes GO To start the watchdog test 1 can not be set to OOHI or DOLO if 0 10 is set to SET and vice versa f M1 OOHI then 16 00 pH or 2000 mV l S1 A1 DOLO then 2 00 pH or 2000 mV I 51 1 ifM1 PldH then Al and 16 00 pHor2000 mV S1 A1 ifM1 then D1 I A1 and 2 00 pH or 2000 mV I S1 A1
93. ocess meter 49 and the external alarm circuit 0 COM In order to have the Fail Safe feature activated an external power supply has to be connected to the alarm device CONTROL THROUGH ANALOG OUTPUT 50 Instead of configuring relays it is possible lout to have an output signal selectable among 0 20 mA and 4 20 mA propor Sj lout tional to the PID action at the analog output terminals With this output the actual output level amplitude is varied continuously with an update delay of 5 seconds between the maximum and the minimum values rather than varying the proportion of ON and OFF times duty cycle control The output signal range can be selected through setup items O 11 output 1 and O 21 output 2 A device with analog input e g a pump with a 0 20 mA input can be connected to these terminals The analog output 1 is associated to setpoint 1 and the analog output 2 to setpoint 2 To have a control through analog output a setpoint has to be configured to Pidl or PidH and the corresponding output has to be set to Control instead of Recorder SET value in setup item O 10 analog output 1 or O 20 ana log output 2 In this case no relay can be associated with the same setpoint to be used for the control otherwise it is not possible to set O 10 or O 20 to SEt On the other hand if a control through anal
94. oduce the fol lowing answer NN STX ASCII string fora float gt S lt ETX gt where 5 means status and can be equal to control and alarm ON C control ON and alarm OFF control OFF The NNHOP request produces the following answer lt 5 gt lt gt 2 3 4 where C C are the ASCII representation of byte B described below e g B C F C 37 CC are the ASCII representation of byte B described below e g B Ox1D C 1 C D The meaning of B and B is B bitO optional relay 2 1 available not available B bit Digital Transmitter input 1 available O not available B bit2 control 1 available not available B bit3 freeforfuture use and set to 0 B bit4 freeforfuture use and set to 0 B bit5 freeforfuture use and set to 0 B bit freeforfuture use and setto O B bit7 freeforfuture use and set to 0 B bitO serial port 1 available O not available B bit serialporttype 0 RS485 B bit2 analogoutputs 1 available O not available B bit3 secondanalog output 1 available O not ovail able no meaning if bit 2 O B 6 4 optional relay 3 and relay 4 1 available O not available B bit5 hold digital output 1 available B freeforfuture use and set to 0 bit7 relay 1 2 3 4 type 0 electromechanical The answer to the NNSTS command is lt
95. og output is already associated with a setpoint it is not possible to configure a relay to the same setpoint IN LINE CLEANING The cleaning feature allows an automatic cleaning action of the electrodes To perform cleaning the controller activates an external device pump Cleaning can be of two types Simple cleaning with water only it can be triggered only by a timer periodical cleaning or by an error for which a cleaning action can be configured i e a Reference elec trode broken or dirty error Advanced cleaning optional with water and detergent it can be triggered by the following events e timer setup item L 15 set to ti digital input or RS485 command external trigger setup item L 15 set to E timer and digital input or RS485 command external trig ger setup item L 15 set to ti E timer masked by external digital input an external digital input disables the cleaning setup item L 15 set to tiEM error for which a cleaning action is configured i e a Reference electrode broken or dirty error The type of cleaning action is selected through the relays configuration and the time between two consequent cleaning if timer configured has to be set through setup item L O1 for simple cleaning and L 13 for advanced cleaning Cleaning actions do never take place if no relay is config ured for cleaning The advanced cleaning requires both relays 3 and 4 configured for that kind
96. onnected in close proximity to the equipment and in a position easy to reach by the operator for disconnection of the instrument and of all the devices connected to the relays CALIBRATION MODE Note Note The calibration mode allows to calibrate the pH ORP input temperature input and 4 20 mA analog outputs The controller is factory calibrated for all these parameters Periodical calibration of the instrument is recommended in particular when greatest accuracy is required and at least bi yearly It is possible to calibrate the electrode over only one point but it is always good practice to perform a 2 point calibra tion CAL To enter the calibration mode press the CAL key LF Enter the correct password and press the CFM key If a wrong password is entered the instrument returns to the previous mode If the meter is set as an ORP controller setup item G 00 the pH calibration pH reading offset adjustment and pH offset and slope are not available If the meter is selected as a pH controller no ORP calibration can be selected Any calibration procedure can be aborted at any time by pressing the CAL key and the instrument returns to the previ ous mode The pH ORP controller can be calibrated through a one point or two point calibration The pH calibration can not be performed if the pH electrode is broken or leaking or the reference electrode is broken or dirty and an error is active The ORP calibration c
97. ontrol timing e RS485 management In addition the meter can log working data through RS485 connection These data include pH mV and C measured values last calibration data setup configuration also from a remote workstation event data In a normal situation during control mode the green LED is ON and the error LED red is OFF The red LED is never fixed ON and blinks only upon an error The green LED is associated to the alarm relay and is OFF if the alarm is active To deactivate the control mode set CONTROL ENABLE to OFF in setup menu CONTROL Ctrl group When measurements are in overflow the upper or lower range limit is Shown on the LCD with blinking digits There are four relay options that can be configured through the setup menu to perform different tasks Once enabled relays 1 and 2 be used in four modes 1 setpoint 1 Analog output 1 must be set to recorder rECO 2 setpoint 2 Analog output 2 must be set to recorder rECO 3 simple cleaning 4 hold mode In the first two cases the configuration of Setpoint 1 or 2 determines the operating mode of the relay Once enabled the control relay can be configured to control as a ON OFF or PID control of the acid base dosage A High hight Alarm is imposed for acid base dosage time when the relays are energized continuously This parameter can be set through setup procedure CONTROL group setup item C 32 When
98. output for recording of temperature or controlling only for models with PID PID control FUNCTIONAL DESCRIPTION FRONT PANEL I co LCD key SETUP key CAL DATA key CAL key 0 key 0 key O key CFM key LEDs LEDs Liquid Crystal Display enters and exits the event scrolling mode During pH calibration alternately displays pH buffer value or current temperature enters and exits setup mode last calibration data viewing enters and exits initiates and exits calibration mode increases the blinking digit letter by one when selecting a parameter Advances forward while in last calibration data viewing mode or event scrolling mode Increases the tem perature setting when temperature probe is not inserted decreases the blinking digit letter by one when selecting a parameter Reverts backward while in last calibration data viewing mode or event scrolling mode Decreases the temperature setting when temperature probe is not inserted moves to the next digit letter circular buffer when select ing a parameter Same as key during last calibration data viewing mode Move to the next piece of information for the current event while in event scrolling mode confirms current choice and skips to the next item ENTER Relay s 1 2 3 4 activation Controller Status alarm activation REAR PANEL
99. owing answer 1 Process controller configured for pH If pH is not calibrated NN lt STX gt 0 lt ETX gt If calibration has been performed NN lt STX gt 1 date time offset slope slope2 bufl buf2 N lt ETX gt The items in italic are separated by blank spaces and have the following formats date time offset ASCII string for a float slope ASCII string for a float slope2 ASCII string for a float ASCII string for a float buf2 ASCII string fora float example bufl ddmmyy hhmm aS eS a 020498 for April 2 1998 1623 for4 23 pm 427 62 5 60 4 7 01 4 01 When some ofthe above items is missing for example buf2 when 66 a 1 point calibration is performed it is indicated with a N letter 2 Process controller configured for ORP If mV is not calibrated NN lt STX gt 0 lt ETX gt If calibration has been performed lt 5 gt 1 date time NNN buf buf2 N lt ETX gt The items in italic are separated by a blank spaces and have the following formats 020498 for April 2 1998 time hhmm 1623 for 4 23 pm buf ASCII string fora float example O buf2 ASCII string fora float example 1900 None ofthe items above can be missing when the Process Control leris configured to measure and control ORP as it always has to be calibrated on two points date When the measurement input selection item is set to Digi
100. r proportional ac tion only The derivative function rate action compensates for rapid changes in the system reducing undershoot and overshoot of the pH value During PID control the ON interval is dependent not only to the error amplitude but even to the previous measurements Definitely PID control provides more accurate and stable con trol than ON OFF controllers and it is best suitable in system with a fast response quickly reacting to changes due to ad dition of acid or base solution An example of how the response overshoot can be improved with a proper rate action setting is depicted in the following graphic low rate proper rate setting RATE ACTION COMPENSATES FOR RAPID CHANGES t 45 PID TRANSFER FUNCTION 46 The transfer function of a PID control is as follows Kp Ki s s Kd Kp 1 1 s Ti s Td with Ti Kp Ki Td Kd Kp where the first term represents the proportional action the second is the integrative action and the third is the derivative action 2 DAC sp 508 PI O 3l K 3 out di PWM to relays D pH or mV input Proportional action can be set by means of the Proportional Band PB Proportional Band is expressed in percentage of the input range and is related to Kp according to the following Kp 100 PB 10096 Controller output Proportional Band The proportional action is set directly as Deviation in pH
101. r the PIN of the SIM card of the GSM module setup item and one ortwo phone numbers associated with the service setup items 2 and to which the messages will be sent The phone numbers have to be inserted using the interna tional format excluding the starting character and without any space inside the number For example if the cellular num ber is 39123456789 39 is the country code the number to be stored in the HI 504 is 39123456789 When the item PO2 or PO3 is selected the primary display will show the first four digits of the correspondent phone number minus sign is added in the front of the number to indicate that the first four digits are shown and the first digit will blink to indi cate the possibility to modify the value The user can select the desired digit using the 0 or O key character indicates that the digit is not used leave dashes on the right of the number 72 By pressing the D key the first digit will be fixed and it will be possible to select the next digit When the fourth digit is reached by pressing the 0 key again the number on the primary display will scroll of one position to the left and the fifth digit of the phone number will be shown on the fourth position The minus sign in the front of the number disappears because the shown digits are not the first four ones anymore NI roa POE ED Bl am b
102. re updated the last one is updated with a maximum delay of 10s When the Digital Transmitter is used the temperature com pensation is performed in the transmitter 85 LAST CALIBRATION DATA 86 If the meter is set as pH controller the following data about the last calibration are stored in the EEPROM Date time offset in mV slope in mV pH upto two buffers If the meter is set as ORP controller the data stored in the EEPROM are the following Date time first calibration point second calibration point While displaying these data the pH ORP controller remains in control mode To enter the last calibration data mode press the CAL DATA key DATA If the meter has never been calibrated or an EEPROM reset has occurred zc calibration data is shown when CAL gt DATA is pressed The CAL mes N ds sage will blink for a few seconds then e Te HE the meter skips back to the previous mode If the meter is set as pH controller once entered the last cali bration data the following messages could scroll twice on the primary LCD before showing the calibration date Old probe Dead probe Probe needs calibration Otherwise the last calibration date will DATE appear on the primary LCD displayed as DD MM format while the second ary display will show the last two digit na of the year Note Pressing the 0 key the
103. resis while for a low alarm the alarm is turned off above low alarm hysteresis 23 The actual start of a cleaning action depends on how relay 3 relay 4 and the Advanced Cleaning parameters have been configured 24 If the item is set to On the m tag near the second ary display will be fixed on If the item is set to OFF the connector for the Potential Matching Pin must be left floating Fail ure to do so may cause damage of the reference electrode 25 When the Digital Transmitter is in use the correspon dent setting in the digital transmitter is used and this item is not visible 26 This item is not visible for models without PID or with out the second setpoint 27 An SMS will be sent to this telephone number if differ ent from when an error configured for the SMS sending occurs 28 This item sets the maximum number of SMS that the instrument can send Before this number reaches O an ad vising message will be sent to the phone number P02 and This feature has been introduced to avoid the discharg ing of the credit of the SIM card Once all the available messages have been sent the user is supposed to extract the SIM card from the instrument and check the remaining credit and expiration date of the card The item shows always the remaining available number of SMS that can be sent so its value is decremented every SMS submission If the user sets this item
104. riggered while whatever cali bration is being performed 53 IDLE MODE 54 During idle mode the device performs only measurements but it does not activate relays in order to control the process or let out a control signal to the analog output In a normal situation the alarm relay is energized no alarm condition and the green LED is ON the red LED is also fixed ON to warn users the device is not controlling the process the yellow LEDs are OFF Moreover the alarm relay could be de energized upon an error whether that happens or not depends on the custom ized alarm configuration see Alarm section for more details Nevertheless the error due to alarm threshold overtaking does never generate an alarm during idle mode since all the control functions have been disabled by the user The red LED flashes in any case upon an error Idle mode is useful to disable control actions when the exter nal devices are not properly settled or whenever any fault circumstance is detected To set the meter to idle mode it is sufficient to disable the control mode setup item C 00 to OFF When measurements are in overflow the upper or lower range limit is shown on the LCD with blinking digits HOLD MODE This function is started by calibration setup cleaning in place the hold digital insulated input when it is on normally the signal level is polled at least every 4 seconds e the proper key com
105. rted without changing the previous calibration data Note Note e f an offset calibration has been m L7 made the instrument will turn to slope calibration as indicated by LN 7 the SLO message on the second ary display The slope value is shown onthe primary LCD and the first digit is blinking to permit modifications Press thell 0 key to modify the value or O key to move to the next digit Once selected the desired value press CFM to confirm After confirmation the instrument will turn back to normal mode If the slope is invalid the WRONG indicator will blink on the LCD Press LCD or CAL DATA key to exit calibration The slope will be set to the default value 57 5 mV pH Atter direct selection of offset and slope calibration data can be viewed by pressing the CAL DATA key while in normal mode but no pH buffer values will be displayed during the data scrolling on the LCD 89 EVENT LOG FILE SCROLLING The event log file is composed by a maximum of 100 re corded events which include errors calibration events type of calibration date time configuration changes and clean ing events type of cleaning start date and time To enter the event log file scrolling press the LCD key while in control hold or idle mode the log feature is not available in setup or calibration mode Event scrolling does not affect control actions which continue normally If there is no event
106. s managed as an information request see further on for details It is possible to configure the instrument to have repeated messages sent if confirmation is not received immediately see items 5 and 06 This user selectable feature has been introduced to prevent losing of the warning message due for example to overload of the telephone lines The 5 item sets the number of repeated messages to send 0 is associated with no repetition only one warning message will be sent 75 76 and no confirmation waited while the P06 item sets the delay in minutes between two subsequent messages When the instrument receives a phone call coming from one of the programmed cellular numbers it interprets the calling as an information request and answers hanging up and sending an SMS with its current status report number of remaining messages pH or ORP and temperature values current active errors The message will be as for example Rem msg 150 pH 8 32 Temp 25 8 Alr set Rel on The maximum number of characters for an SMS is 160 so that if many errors are active it is possible that the message be truncated To avoid this problem a coded notation is used to identity the active errors Here is the list of the error strings coded notation Alarm for setpoint 1 Alr set Alarm for setpoint 2 Alr set2 Max relay ON time error Rel on Life check error Life chk pH electrode broken or leaka
107. setup item t 07 Once the test is confirmed the pri mary LCD will display the HOLd Lr m message while the secondary LCD shows the status OFF or On of the digital input corresponding to the hold command Toggle the digital input between high and low levels and verify the corresponding status on the secondary LCD To exit the test press the CFM key the instrument will remain in the setup menu and move to the next setup item t 07 ADVANCED CLEANING DIGITAL INPUT TEST To enter the test procedure select the setup item 1 07 and an OFF blinking message will appear on the LCD e Press the 0 or key once and the message will switch to a blinking GO Press CFM key to confirm or the 0 or 0 key again to return to the previous status If confirmation is given when the OFF message is blink ing no action is performed and it will move to the next setup item t 08 Once the test is confirmed the ACLE message will appear on the ri primary LCD while the secondary LCD shows the status OFF or On of the digital input corre sponding to the advanced cleaning To perform this test relays 3 and 4 have to be config ured for the advanced cleaning otherwise the cleaning will never start and on the secondary display is indicated the digital input status only To avoid continuous cleaning it is necessary to configure the minimum pause time between two consequent clean
108. sing again CFM the secondary LCD will display the second calibration point In the second case blinking WRONG the meter will remain in the WRONG state until the reading becomes unstable or the calibration mode is exited by pressing the CAL key For the second calibration point it is possible to choose between 350 mV or 1900 mV Pressing the 0 or O key the value on the secondary LCD will switch between the two possibilities Once selected the second calibration point set the HI 931001 350 mV or HI 8427 350 or 1900 mV simula torto the same value and the calibration proceeds as for the first point In ORP calibration there is no time out ANALOG OUTPUT CALIBRATION The instrument can be provided with one or two analog out puts each of them can be calibrated Connect an or the HI 931002 calibrator to the analog output to measure the current erogated by the meter Enter the calibration mode and move through the menu using the 0 or D key until Out 1 or Out 2 message appears on the primary LCD CAL Once visualized the selected output press the 0 key to Note choose the range of the analog output 0 20 mA or 4 20 mA then press the CFM key to confirm the choice Once selected and confirmed the range for the analog output the 81 ri secondary LCD shows the first point f of calibration 1 or 4 mA and the primary LCD displays the range of E the actual calibr
109. ss name and version displaying That start up session ends when the first measurement is acquired and displayed When the Hold mode is enabled for the Life check error this error can be closed automatically if the measurement vary enough The alarm relay when configured to be activated is de energized fail safe ON continuously or with a pulse of about 5 seconds This parameter can be configured through setup item E 99 LE stands for level and PULS for pulse If pulse is configured a new pulse will be let out upon every new error no matter whether the red LED is already blinking i e some error is active or not When the pulse finish the relay is energized but the error remains still active red LED blinking until the error is closed The Digital Transmitter error is generated by one of the following causes 1 Digital Transmitter is off 2 connection problems between the Process Controller and the Digital Transmitter 3 EEPROM data corruption in the Digital Transmitter 4 Digital Transmitter not calibrated 5 the Process Controller is configured to pH while the Digi tal Transmitter is configured to ORP or vice versa 6 other failures in the Digital Transmitter excluding life check error pH electrode broken or leakage Reference electrode broken or dirty old pH probe dead pH probe temperature probe broken error These errors are handled separately and exactly in the same way as if they were generated in th
110. tes 18 25 Code Valid Values Default Present for ORP SOLUTION COMPENSATION 45017 500 Solution compensation enable On compensation enabled m OFF compensation disabled 510 pH value for point 1 2 00 to 16 00 pH 7 00 pH m S11 Temperature value for 30 to 130 0 C 20 C m point 1 9011 SM SC2 1 0 C 520 pH value for point 2 2 00 to 16 00 pH 7 00 pH m 521 Temperature value for 30 to 130 0 C 30 m point 2 9072 SCTI SC2 110 IN LINE CLEANING CLEA SIMPLE CLEANING SCLE LOO Rinsing time 510995 20s ys 01 Pausetime 10109999 minutes 1440 minutes yes ADVANCED CLEANING ACLE L10 Pre tinsingtime 010995 205 yes L11 Detergent washing 010995 105 yes L12 Rinsing time 510995 205 yes L13 Pause time Min pause time L14 to 1440 minutes 9999 minutes L14 Minimum pause time 10 to Pause time L 13 10 minutes ys L15 Cleaning trigger ti Timer only ad yes E Digital input or RS485 external only fi E Timer and digital input or RS485 external EM Timer masked by digital input external L16 Repeated cleaning number 01010 0 yes L17 Number of cleaning Oto 10 0 yes without detergent TEMPERATURE LEVEL ALARM U 00 Max temperature level 3010 130 C 130 0 C m see note 32 U 01 Min temperature level 3010130 C 30 0 C m see note 32 33 34
111. the NIST set 4 01 6 86 9 18 Forthe standard set confirm the Std for the NIST set confirm the niSt use the 0 and O keys for select between the two options 1 Two point calibration Note Note The default buffer set is the one used for last calibration even if the procedure was not completed Once confirmed the set of buffer val ves the primary LCD shows the measured pH value while the second ary LCD displays the first required buffer value Remove the protective cap from the pH electrode and immerse it into the buffer solution e g pH 7 01 together with the Potential Matching Pin and the tem perature probe then stir gently The electrode should be submerged ap proximately 4 cm 11 in the solution The temperature probe has to be located as close as possible to the pH electrode 41 When it is not possible to immerse the Potential Matching Pin together with the pH electrode in the solution disable the differential input by setting setup item 1 04 to OFF When the reading becomes stable the probe indicator will stop flashing after oon about 30 seconds and if the pH value is close to the selected buffer the ES indicator will start blinking oth 2 erwise the WRONG indicator the pot and the BUF tags will start blinking n the first case press the CFM k
112. the additional information Note exit the log event scrolling press the LCD key Note The logged event information can be downloaded to a PC through the HI 92500 application software FAULT CONDITIONS 92 The below fault conditions may be detected by the software e EEPROM data error serial communication internal bus failure software dead loop EEPROM data error can be detected through EEPROM test procedure at start up or when explicitly requested using setup menu or during normal operational mode if a checksum control fails When an EEPROM error is detected during normal mode a fault alarm is generated according to the user configuration for the EEPROM corruption error see Alarm section To close an error an EEPROM test see Selftest procedures section or reset is required As soon as an EEPROM error is detected the scrolling mes sage EEPROM reset needed Press up button to reset stored data or right button to ignore will appear on the primary LCD Ifthe O0 key is pressed the process controller restarts opera tion but alarm actions are performed as configured by the user see Alarm Error configuration section Note that the device will be in Hold mode in any case Ifthe O key is pressed all the data stored in the EEPROM are erased and the default values loaded After that the device must be completely recalibrated An internal bus error is detected when internal transmission
113. the upper time boundary is reached an alarm is generated and device stays in alarm condition until relay is de energized If the hold mode is selected for the relay then it is ener gized only when the meter is in hold mode In this case there is no time boundary for the ON state of the relay The option for relays 3 and 4 be configured to opera tions in three modes 1 simple cleaning 2 advanced cleaning 3 hold mode ON OFF CONTROL MODE Once a relay is enabled set 1 set 2 the setpoint can be configured to be activated as a high limit OOHI oras a low limit In both cases the following values have to be defined through setup setpoint value pH mV setup item C 11 or C 21 hysteresis for setpoint pH mV value setup item C 12 or C 22 A control device can be wired to the contact output i Connect the device to the COM and NO Normally Open or NC Normally l Closed terminals of the relay The ON relay state occurs when relay is energized NO and COM connected NC and COM disconnected The OFF relay state occurs when relay is de energized NO and COM disconnected NC and COM connected The following graph shows relay state along with pH mea sured value similar graph can be derived for mV control As shown below when the measured pH exceeds the setpoint threshold the relay s is are energized until the pH m
114. to Digi tal Transmitter the displayed last calibration data refer to the Digital Transmitter and is stored in that device This does not mean that the calibration data of the process controller are lost but they come back when changing back the Mea surement input selection later 87 OFFSET AND SLOPE DIRECT SELECTION 88 Note It is possible to edit directly the values of the offset and the slope to calibrate the instrument Press the CAL DATA key entering the last calibration data scrolling and then press the SETUP key A password entry is required If a wrong password is con firmed the instrument reverts back to the normal mode e Otherwise if correct password is con firmed the LCD will appears as das follows the secondary LCD shows OFF to indicate offset while the fea primary one shows offset default value The first digit on the primary m LCD is blinking and itis possible to i a change it by pressing or O key e Pressing the 0 key will move tothe second digit while the first one will be fixed 3 e Pressing repeatedly the 0 key will move cyclically through the digits of the primary LCD Once selected the desired value press CFM to confirm the calibration offset wl 2 Ifthe offset is invalid the WRONG Du Gn indicator will blink on the display If LCD or CAL DATA key is pressed before CFM calibration is abo
115. to confirm the cellular module connection If the first attempt to initialize the GSM engine fails because of a wrong PIN then no other attempt will be allowed until the setup item POT is modified prevention of sending three wrong PINs Infact if it happens the user has to extract the SIM card and manually enter the PUK using his own cellular phone to unlock the SIM card The communication baud rate is set through the item O 30 and it is the same both for a PC connection and for the HI 504900 GSM module connection Normally there is no need to modify the default baud rate 19200 It is important to set the desired baud rate before enabling the SMS service The GSM cellular mode will automatically recognize the baud rate during the initialization Once acti vated the SMS service it is important NOT to change the baud rate during the normal functioning of the instrument If a baud rate changing is required first switch setup item POO to PC then change the baud rate setup item O 30 and finally reactivate the SMS service switching item POO to CELE To have an error associated with the SMS service the user has to select a proper configuration in the Error group see Setup mode section When an error configurated for the SMS service is switched on the following message will be sent to the programmed phone numbers Rem msg xxx The following error occurred on 504 stands for a t
116. to avoid dam age of the reference electrode due to ground loop current Interval measured in percentage of the input range where the proportional action spans from O to 100 96 Pulse Width Modulation Random Access Memory non permanent memory Real Time Clock Value at which the measurement needs to be controlled SOLUTION COMPENSATION Technique for compensating the differences on the THRESHOLD TRIGGER WATCHDOG 108 pH of the solution under measurement when its temperature varies Value above below which a control or alarm relay is acti vated or deactivated An event or command that acts like a mechanical trigger in initiating a process Mechanism for issuing a reset of the device in case it gets stuck ACCESSORIES pH CALIBRATION SOLUTIONS 7004M orHI 7004L pH 4 01 Buffer Solution 230 or 500 bottle HI 7006M orHI 7006L pH 6 86 Buffer Solution 230 or 500 ml bottle HI 7007M orHI 7007L pH 7 01 Buffer Solution 230 or 500 ml bottle HI 7009M orHI 7009L pH 9 18 Buffer Solution 230 or 500 ml bottle HI 7010M orHI 7010L pH 10 01 Buffer Solution 230 or 500 ml bottle ORP SOLUTIONS 7020M or HI 7020L Solution 200 275 mV 230 or 500 ml bottle HI 7091M orHI 709 1L Pretreatment Reducing Solution 230 or 500 ml bottle 7092M orHI 7092L Pretreatment Oxidizing Solution 230 or 500 ml bottle ELECTRODE STORAGE SOLUTIONS HI 70300M or HI 70300L Storage Solution 230 or 500 ml bottle HI 70
117. uffers GLP features old probe check dead probe check calibra tion time out last calibration data internally recorded non volatile EEPROM memory calibration date and time pH offset pH slope number of calibration points and corre spondent pH values Solution compensation of the pH reading Manual temperature setting when the temperature probe is not inserted or temperature is out of range Input pH ORP electrode with BNC connector Input pH ORP Temperature Digital Transmitter HI 504910 which can be connected up to 1 2 km 0 75 miles far away Output 0 20 or 4 20 mA one analog output for record ing of pH ORP or controlling only for models with PID RS485 communication with Short Messaging Service SMS for GSM phones RS485 communication with analog modem for remote con nection with PC Data logging 6000 samples pH C or ORP downloadable through RS485 and HI 92500 application software Realtime clock OPTIONAL FEATURES depending on model LEDs four yellow LEDs are provided for signaling the ener gizing of relay 1 relay 2 optional relay 3 optional and relay 4 optional Relays 1 2 or 4 output relays The relays LEDs are switched ON whenever the correspondent relay is energized NO and COM connected Advanced Cleaning is provided through two cleaning commands and variety of trigger events relays 3 and 4 only Output 0 20 or 4 20 mA second independent analog
118. uitable for data transmission in noisy environments Data transmission from the instrument to the PC is possible with the HI 92500 Windows compatible application soft ware offered by Hanna Instruments and RS232 to RS485 adapter with Send Data Control connected to the serial port of your PC The user friendly HI 92500 offers a variety of features such as logging selected variables or plotting the recorded data It also has an on line help feature to support you throughout the operation The readings logged into the HI 504 internal memory can be downloaded through HI 92500 HI 92500 makes it possible for you to use the powerful means of the most diffused spreadsheet programs Simply run your favorite spreadsheet program and open the file downloaded by HI 92500 It is then possible to elaborate the data with your software e g graphics statistical analysis To install 92500 you need a 3 5 drive and few minutes to follow the instructions conveniently printed on the disk s label Contact your Hanna Dealer to request a copy The 5485 standard is implemented in 504 with the fol lowing characteristics Data rate up to 19200 bps manually selected Communication Bidirectional Half Duplex Line length upto 1 2 Km typ with 24AWG cable Loads up to 32 typ Internal termination none Windows registered Trademark of Microsoft Co CONNECTIONS The connections for the 6 pin RS485 terminal provided are

HI 504 - Hanna Instruments

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