Epson 1975W Network Card User Manual
Contents
1. CONTROLS sole option free of charge and returned prepaid using the lowest cost transportation RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the Hoffer Flow Controls Customer Service Department telephone number 252 331 1997 or 1 800 628 4584 BEFORE RETURNING ANY PRODUCT S TO HOFFER FLOW CONTROLS PURCHASER MUST OBTAIN A RETURNED MATERIAL AUTHORIZATION RMA NUMBER FROM HOFFER FLOW CONTROLS CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned RMA number should then be marked on the outside of the return package and on any correspondence FOR WARRANTY RETURNS please have the following information available BEFORE contacting HOFFER FLOW CONTROLS 1 P O number under which the product was PURCHASED 2 Model and serial number of the product under warranty and 3 Repair instructions and or specific problems relative to the product FOR NON WARRANTY REPAIRS OR CALIBRATIONS consult HOFFER FLOW CONTROLS for current repair calibration charges Have the following information available BEFORE contacting HOFFER FLOW CONTROLS 1 P O number to cover the COST of the repair calibration 2 Model and serial number of the product and 3 Repair instructions and or specific problems relative to the product HFC 9707 CONTENTS Ll Introduction irae eee ete hain 1 1 1 Model Number Designation sese 2 2i Specification2. Overrun 15 P Parity 25 33 Power Requirements 3 Prestop 11 Printer 25 Pulsating Signal 17 Pulse Output 20 R Rate 7 Reed Switches 36 Regulated Voltage 42 Remote Push buttons 41 Resetting 7 Response 18 RS232 422 485 Interface 22 Run Key 6 S Scaling Factor 16 Scaling Range 3 self test 47 Setting the Batch 6 Setup Parameters 27 Signal Timeout 12 Slow Start 11 Slow Stop 11 Snubbers 43 Specification 3 Starting 7 Stop Key 11 Stopping 7 Supply Output 42 Switch Settings 37 Switching Threshold 37 T Terminal Designations 42 Index 49 Terminal Wiring Designations 44 Tickets 25 time 25 Time Delay 11 Timebase 29 Total Conversion 19 Transducer Supply 3 Trouble Shooting 45 Turbine Flowmeters 36 W Word Length 25 HP289
3. convert the totals to the different unit The Total Conversion factor affects the net accumulated and gross totals and is limited between 0 01 and 2000 For Example If the Rate is required in gallons per minute 1 The Scaling Factor would be set to pulses per gallon 2 The timebase would be set to minutes If the Totals are required in barrels 3 The Total Conversion factor is set to 42 there are 42 gallons in a barrel All totals including the Batch Quantity and Batch Total will now be in barrels Some common units are given below together with the Total Conversion constant TOTCON which should be set Rate Totals TOTCON Gallons US Barrels oil 42 00 Liters Kiloliters 1000 ml Liters 1000 Mgallons Acre feet 0 32587 Units per second minute hour or day The timebase is set separately during configuration HP289 20 Operation 3 5 The Output Pulse and Flow Alarm An OUTPUT PULSE is available on terminal 10 for driving remote counters and produces a pulse each time the Accumulated Total increments by one digit For example if the Accumulated Total has a resolution of 0 01 gallons a pulse is produced each 0 01 gallons The pulse is a current sinking pulse of approximately 10msec produced by an open collector transistor and can sink up to 100mA The maximum pulse rate is limited to 49 pulses per second and the resolution on the Accumulated Total must be set so that the Accumulated Total increments at less t
4. Logic Signals The following pages give examples of the interconnection to various signal outputs and a circuit diagram of the input is also provided HP289 Input Circuits 37 Switch Settings The following switch settings are recommended for different input signal types Input Signal Type Input Terminals Switch Settings CH1 a Logic Signal 9 8 off off off off on off off off CMOS Pulse b Open Collector or 9 8 off off off off on off on off Reed switch c Namur Proximity 11 9 off off on on on off off off set DC out to 8 volts d Switch or Reed 9 8 off off off off on off on on Switch with debounce circuit 200Hz max e Coil 20mV P P 9 8 off on off off off off off off minimum f Coil low 9 8 on on off off off off off off Impedance 22mV pp minimum General Specification Switching Threshold 2 5 Volts except for input type c e and f Maximum Input Voltage 50V peak Input Impedance Input type a 100K Input types b amp d 10K Input type c 1K Input type e 100K Input type f 2 4K HP289 38 Input Circuits 10K INPUT COMPARATOR IK S1 2K4 5V 33K S4 22K The Frequency Input Circuit HP289 Input Ci
5. Protocol is selected the following message is displayed 11 ECHO ECHO Commands On Echo Full Duplex Off No Echo Half Duplex HP289 Configuration 35 5 4 Checking the Input Signal Step Display Description Text Ref 1 TEST Check Input Signals END _ Exit to normal operation CAL Setup Program Parameters 5 1 BATCH Set Batch Parameters 5 2 OPTION Options if installed 5 3 The following steps are displayed when TEST is selected 2 Srx xx Software revision number 3 Freq Displayed for 1 second followed by the actual frequency XXXX X Frequency in Hz If the RS232 422 485 option is installed the display will then show 4 CLOC Clock XX XXIXX Time in Hours Mins Sec HP289 36 Input Circuits 6 Input Circuits This section covers the connection of flowmeter signals for the Model 214D Series Batch Controllers The 214D Series has a regulated power supply output which can be used to power sensors A trimpot on the rear of the instrument allows the voltage to be adjusted in the range of 8 24 Volts and the output can supply a maximum of 50mA 6 1 Input Circuit for the 214D Series The 214D Series has an input conditioning card which will accept signals from most pulse or frequency producing flowmeters An 8 position DIP switch on the rear panel enables the input circuit to be configured for different signal types The input will interface directly to e Turbine Flowmeters e Open Collector Outputs e Reed Switches e
6. entitled Configuration for information on configuring All parameters and constants are stored in a non volatile memory which retains data without battery backup for a minimum of 10 years A block diagram of the instrument is shown below Pulse Input morm RS232 422 485 RS232 422 485 HR Jai Option Output Common gt EOB dg Control Relays Relay Outputs 2 Pulse Output Model 214D gt Flow Alarm b 110 220V AC Ie DC Input Power gt DC Power Ground gt DC Power Output to Sensors HP289 6 Operation 3 1 Front Panel Operation The four key operation makes the operation of the Batch Controller very easy 3 1 1 Setting the Batch Quantity The batch quantity is set as follows Switch Action Display Comments Press BATCH SET Batch Batch is displayed for one second followed by the batch quantity last entered The Batch Set LED lights I 2345 The most significant digit flashes indicating that it can be changed Press A 2 2345 Pressing the DISPLAY key will increment the digit The up arrow on the DISPLAY key indicates to increment digit Press 2 2 345 Pressing the RUN key will change digit and enable the next digit to be incremented The right arrow on the RUN key indicates to change digit Press BATCH SET Set Once the desired number is entered press the BATCH SET key to return to the Run mode The Batch Set LED will extinguish Once set the batch q
7. the Input Signal esee 35 6 Input Circuits eerte de Re debet goes 36 6 1 Input Circuit for the 214D Series sesess 36 6 2 Remote Key Switches eeeeeeeeeee 41 Te Installation eie te eH dei E ee 42 7 1 General iR det dde Eee es 42 7 2 Terminal Wiring Designations seeeeeeeeeeee 44 8 Trouble Shooting nsnsi a nne 45 8 1 Error Codes asinis impe e Ep oie Hg Rod 47 Index 5 2 ssp s tive fess cn peo eise qe ep ed 48 HP289 Introduction 1 1 Introduction The Model 214D 1 Batch Controller accepts pulse or frequency flow signals and automatically controls the batching of fluids via a one or two stage control valve The instrument is extremely flexible and easy to operate with a four key front panel operation that enables the batch quantity to be set and batches to be started or stopped This manual covers the Model 214D 1 which accepts most frequency and pulse signals including mV outputs from turbine flowmeters and 2 wire proximity switch outputs It also allows all four front panel switches to be remotely connected via the rear panel terminal strip The instrument is fully configurable with all calculation constants set via the front panel switches and stored permanently in a non volatile memory This instrument conforms to the EMC Directive of the Council of European Communities 89 336 EEC and the following standards Generic Emission Stand
8. will send the address down the line and will alert the relevant instrument Subsequent software protocol will control the flow of data between the Controller and the Instrument Load 120 ohms Twisted Pair z T Load Host 120 ohms Computer A O MER NOE TP NU 200 Series 200 Series Instrument Instrument Figure 1 RS422 Interface HP289 24 Options Twisted Pair T p Host T e Computer 120 ohms Gnd ri Gnd Gnd In Out In Out 200 Series 200 Series Instrument Instrument Figure 2 RS485 Interface HP289 Options 25 4 1 3 Communication Protocol The RS232 422 485 option has a real time clock and enables the time and date to be set and printed on tickets The date format can be European days months years or USA months days years while the time is on a 24 hour clock Note that the clock will only retain its time for 3 days minimum if there is no power connected to the instrument After this period the clock may need to be reset The baud rate parity and word length can be selected during configuration and the user must ensure that these correspond to the setting on the printer or computer with which the instrument is communicating The software protocols can be selected during configuration to provide standard interfaces to a number of printers and computers Since other i
9. 4 Volt output the pulse output and the End of Batch output It is good practice to use shielded cables for all signal connections to the Model 214D Care must be taken to separate signal cables from power cables so as to minimize interference Overall shields should be connected to the case earth at the instrument end only This connection HP289 Installation 43 should be as short as possible and connected to the grounding lug on the side of the case In order to comply with the requirements for Electromagnetic Compatibility as per EMC Directive 89 336 EEC of the Council of European Community this wiring practice is mandatory Although it is also possible to connect shields to the signal ground terminal 2 this practice is not in accordance with EMC directives RC Networks for Interference Suppression When driving highly inductive loads with the control relays it is recommended that RC suppression networks often called Snubbers are used for two reasons To limit the amount of electrical noise caused by arcing across the relay contacts which may in extreme cases cause the microprocessor to act erratically To protect the relay contacts against premature wear through pitting RC suppression networks consist of a capacitor and series resistor and are commonly available in the electrical industry The values of R and C are dependant entirely on the load However if the user is unsure of the type of snubber to use va
10. ES CEX CENELEC FLAMEPROOF CSA amp SAA APPROVED Eexd11BT6 EX UL CSA EXPLOSION PROOF ENCLOSURE HP289 Introduction 2A OPTIONS MODEL214D K C OPTION H 50 W HEATER SPECIFY 12 VDC 115 VAC OR 220 VAC B BACKLIGHTING DISPLAY C CONFORMAL COATING CE INTERFERENCE CE COMPLIANCE CEN CENELEC CSA NRTL C AND SAA APPROVAL NTEP WEIGHTS amp MEASURES CUSTODY TRANSFER UL AVAILABLE ON LA OR LR OPTIONS ONLY ELECTRICAL ETL US APPROVED TO ULS08 amp CSA NOTES 1 LCD DISPLAY 6 DIGIT 0 7 17 8MM HIGH NON VOLATILE TO TEN YEARS TRANSDUCER SUPPLY 824 VDC 50 MA MAX FIELD ADJUSTABLE 10 POINT LINEARIZATION WITH INPUT OPTIONS LA LR AND Q THE Q OPTION CAN BE CONFIGURED WITH EITHER THE LA OR LR OPTION SINGLE POINT K FACTOR WITH INPUT OPTIONS 1 AND 1H BOTH MAGNETIC COIL AND HALL EFFECT INPUTS ACCEPTED TEMPERATURE RANGE LR RTD INPUT cece cece ee 148 TO 392 DEG F LA 420 MA INPUT GENERAL LIQUIDS 459 TO 392 DEG F PETROLEUMS 148 TO 392 DEG F LPGauueolo a 49 TO 4140 DEG F FOR BATCHES LESS THAN 15 SECONDS RESPONSE TIME IS LESS THAN 20MS WITH A SCALE FACTOR LIMITED TO 4000 ONE OR TWO STAGE SHUTDOWN CAN CONTROL SINGLE OR DUAL STAGE SHUTDOWN VALVE PROGRAMMABLE TO COUNT UP OR DOWN FOR BATCH SIZE HP289 Introduction 2B This page intentionally left blank HP289 2 Specification General Display Display Upd
11. HP289 14 Operation 3 2 4 Auto Restart The Batch Controller can be configured to continually repeat the batch process This mode of operation is selected during the configuration process The process is started by pressing the RUN key whereby the normal batch operation is commenced After reaching the End of Batch see Section 3 2 3 the Batch Controller will then wait for a pre programmed period before automatically resetting and starting the batch process again The STOP key can be pressed at any time to interrupt the batching process and the process can be continued using the RUN key If however the process is to be aborted the STOP key is pressed again The Batch Controller is reset and to restart the auto batching process the RUN key is pressed HP289 Operation 15 3 2 5 Automatic Overrun Compensation The Batch Controller can be configured to automatically compensate for any overrun at the end of a batch Typically this is due to the slowness of a valve to close or a pump to stop pumping on receiving a signal from the Batch Controller The result is that the batch quantity will always read higher than the batch quantity set The Automatic Overrun Compensation can be enabled or disabled during the configuration process and this feature should only be used if the overrun is repeatable The user is cautioned against using Automatic Overrun Compensation if the overrun is erratic such as may occur with changing back press
12. MODEL 214D 1 Batch Controller USER S MANUAL HP 289 November 2002 HOFFER FLOW CONTROLS INC The Turbine Flowmeter Company 107 Kitty Hawk Lane P O Box 2145 Elizabeth City NC 27906 2145 800 628 4584 252 331 1997 FAX 252 331 2886 www hofferflow com E mail info hofferflow com HP289 NOTICE HOFFER FLOW CONTROLS INC MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE This manual has been provided as an aid in installing connecting calibrating operating and servicing this unit Every precaution for accuracy has been taken in the preparation of this manual however HOFFER FLOW CONTROLS INC neither assumes responsibility for any omissions or errors that may appear nor assumes liability for any damages that result from the use of the products in accordance with information contained in the manual HOFFER FLOW CONTROLS policy is to provide a user manual for each item supplied Therefore all applicable user manuals should be examined before attempting to install or otherwise connect a number of related subsystems During installation care must be taken to select the correct interconnecting wiring drawing The choice of an incorrect connection drawing may result in damage to the system and or one of the components Please review the complete model number of each item to be connected and locate the ap
13. Pt t base 60secs hours days SECS FILTER 1 to 99 TOTCON X XXXX t dPt Reset all totals to zero To clear all totals resettable and accumulated press the BATCH SET key once Scaling Factor Enter the Scaling factor K factor of the flowmeter Number of decimal points with which the Rate is to be displayed between 0 to 0000 The Timebase with which the Rate is calculated must be entered as units min units hour units day units second The filter constant for filtering the rate display No filtering Very heavy filtering A division factor to convert the totals to different units from those used for rate e g gallons min and barrels Rate and totals have the same engineering units Other factors can be programmed between 0 01 and 2000 Number of decimal points with which the resettable total is displayed between 0 to 00 Text Ref 52 53 54 32 1 3 30 HP289 30 Configuration Step Display Description Text Ref 9 A dPt Number of decimal points with which the Accumulated non resettable total is displayed between 0 to 00 10 ACCESS Enable access to configuration routine via the front keyboard only Front Enable access via front keyboard No Acc Disable access via front keyboard HP289 52 Step 1 Configuration 31 Entering the Batch Parameters Display BATCH OPTION TEST END CAL Description Text Ref Set Batch Parameters Options if installed 5 3 Check Input Sig
14. Rate impossible to read with any precision The Batch Controller has a digital filter which will average out these fluctuations and enable the Rate to be read to four digit accuracy The degree of filtering is fully configurable which means that highly accurate and stable readings can be obtained without excessive lag The diagram below shows a pulsating signal input together with the effect of filtering Rate A Filtered Response Unfiltered Response Time As a guideline to the degree of filtering to be used the following table shows the response to a step change in input The value A is the filter constant which is set during the configuration process The times for the display value to reach 90 and 99 of full swing are given in seconds for different values of A HP289 18 Operation A 90 99 1 0 0 2 1 2 4 2 4 6 3 6 10 5 11 15 8 17 20 11 22 25 14 28 35 20 40 45 25 51 60 34 69 75 43 86 90 52 103 99 57 113 Table 1 Response to a step Input in seconds Note if A is set to 1 there is NO filtering of the input signal HP289 Operation 19 3 4 Total Conversion The Total Conversion feature enables the rate to be displayed in one engineering unit e g gallons minute and the totals to be displayed in another engineering unit e g barrels The Scaling Factor is always set in the unit relating to Rate and the Total Conversion constant is a division factor which can be used to
15. and the instrument will automatically determine if the message sent by the host computer is preceded by an Xoff character If it does recognize an Xoff as the first character of a command string the instrument will automatically switch to the Xoff Xon protocol beginning and ending all messages with Xoff and Xon characters respectively Xoff Xon protocol is only available when the RS232 interface is selected During configuration the instrument can be configured to operate in a full duplex or half duplex transmission mode In full duplex mode all commands sent to the instrument are echoed back to the host computer In half duplex the commands are not echoed HP289 Configuration 27 5 Configuration The Configuration process enables the Setup Parameters to be configured as well as enabling the input signals to be checked The configuration process can be entered in one of two ways 1 By connecting a wire link or switch to the rear terminal strip across terminals 1 and 2 2 By pressing the TOTAL key and while holding pressing the RESET key Both keys must then be held for approximately 6 seconds This second method of access can be disabled during the configuration so that it is only possible to enter the configuration process via the link across terminals 1 and 2 The key switch actions are during Configuration are as follows RUN changes a flashing digit to the next digit DISPLAY increments a flashing digit or changes a
16. ard EN 50081 1 Residential Commercial amp Light Industry Environment Generic Emission Standard EN 50081 2 Industrial Environment Generic Immunity Standard EN 50082 1 Residential Commercial amp Light Industry Environment Generic Immunity Standard EN 50082 2 Industrial Environment In order to comply with these standards the wiring instructions in Section 7 must be followed HP289 2 Introduction 11 Model Number Designation The Model number of an instrument describes which input and output options are installed and the AC voltage rating MODEL 214D DIGITAL BATCH CONTROLLER TO BE USED ONLY WHEN APPROVALS ARE REQUIRED MODEL 214D 4 9 6 INPUTS ANALOG amp COMMUNICATIONS POWER MOUNTING ENCLOSURES OPTIONS INPUTS MODEL 214D F X OPTION D BASIC UNIT SINGLE CHANNEL 1H BASIC UNIT SINGLE CHANNEL HIGH SPEED SEE NOTE 6 LA 4 20 MA TEMPERATURE LR RTD 4WIRELINEARIZED Q QUADRATURE BI DIRECTIONAL FLOW SEE NOTE 3 ANALOG amp COMMUNICATIONS MODEL 214D 4 C4 OPTION 0 NO OPTIONS OTHER THAN SCALED OPEN COLLECTOR STANDARD ALL OPTIONS D RS232 422 485 POWER MODEL 214D EH OPTION A 95 135 VAC 50 60 HZ AND 11 5 28 5 VDC SELECT C 190 260 VAC 50 60 HZ MOUNTING ENCLOSURES MODEL 214D 404 OPTION PANEL MOUNT STD Q NEMA X WHITE FIBERGLASS 2B NEMA 4X ALUMINUM WITH HEAVY DUTY EXTERNAL SWITCH
17. ate Rate Transducer Supply Power Requirements Operating Temperature Dimensions Cutout Frequency Input Frequency Range Input Circuits Specification 3 6 digit LCD 0 7 17 8mm high digits 0 25 seconds 8 24VDC field adjustable 50mA maximum DC 11 5 to 28 5 volts 130mA typical current no options AC 95 135 VAC or 190 260 VAC Set internally at factory 0 C to 55 C standard 5 7 144mm wide x 2 8 72mm high x 7 0 178mm deep 5 5 139mm wide x 2 6 67mm high Minimum 0 25Hz on Rate OHz on Total Maximum 10KHz See Section 6 1 Scaling Range 0 1000 to 50 000 Relay Outputs Maximum Switching Power 1250VA Maximum Switching Voltage 250VAC 30VDC Maximum Switching Current 5 Amps 4 20mA Output Resolution 10 bits Accuracy Better than 0 0596 Maximum Load 500 ohms internally powered 950 ohms from 24VDC Isolation Output is isolated HP289 4 Specification Pulse Output Pulse Width Maximum Duty Cycle Output Scaling HP289 10msec negative going pulse 49 pulses per second Open collector transistor will sink 100mA The pulse output is scaled and outputs one pulse each time the accumulated total increments Operation 5 3 Operation The Model 214D 1 uses a low power CMOS microprocessor to perform all control functions and calculations The instrument is fully configurable with all operating parameters and calculation constants user settable See Section 5
18. ection 3 2 2 14 Communications Input error RS232 422 485 interface Output Errors 21 Invalid output configuration 22 Communications error Baud rate not set 23 Communications error Printer fault Configuration Errors 30 Zero Value not allowed 33 Invalid Printer Type 34 Invalid Volume Units selected HP289 48 Index Index A AC Voltage 42 access 30 Auto Reset 7 Auto Restart 14 Automatic Overrun Compensation 15 B Batch Limit 8 Batch Set 6 Baud rate 25 33 C clock 25 Communication Protocol 25 communications 22 Computer 26 Control Functions 9 Control Relay 11 Count Down 7 Count Up 7 Cutout 3 D date 25 decimal points 29 Dimensions 3 Display Key 7 Displayed Information 7 HP289 E electrical noise 43 End of Batch 13 Error Codes 47 F Filtering 17 Flow Alarm 12 Flowrate calculation 16 Frequency Input 16 Frequency Range 3 Front Panel 6 G Ground 42 Ground Lug 42 grounding point 42 I Identification Number 33 Inductive Loads 43 Input Circuits 36 Input Impedance 37 Installation 42 Interference 43 isolation 42 K Key Operation 6 K factor 16 L Limit on Batch 8 Logic Signals 36 Loss of Signal 12 M Maximum Input Voltage 37 Model Number 2 Multipoint Communicatio n 23 O Open Collector Outputs 36 Operating Temperature 3 Operation 5 Options 22 Output Pulse 20
19. eiie Ice t ee eae 3 3 2 Operation samet ERE Ee PE Fen re E iE eene 5 3 1 Front Panel Operation seeeeeeeeeeeeeeeenneenne 6 3 1 1 Setting the Batch Quantity eene 6 3 1 2 Starting a Batch eese 7 3 1 3 SOPPI E eee eot eth ee p epit ets 7 3 1 4 R s ttifig i eee repite ee etr tt 7 3 1 5 Displayed Information eee 7 3 1 6 Limit on Batch Size 8 3 2 Batch Operations eoe teet eem pres 9 32 1 Control Relays aede etes tene pep ees 11 3 2 2 Signal TIMEOUT etes 12 3 2 3 Endz f Balch uet eerte en 13 3 2 4 Auto Restart eite ipte eerte eed 14 3 2 5 Automatic Overrun Compensation 15 3 3 Calculation of Rate and Total sees 16 3 3 1 Frequency Input 5 ne ere efe 16 3 3 2 Elltering nndoe eere er eR 17 34 Total COBV ISIOD sleeve ded 19 3 5 The Output Pulse and Flow Alarm eese 20 4 ODptUOTnS i retire nea ro P Ue REEL Rs 22 4 1 The RS232 422 485 Interface Option 22 4 1 Hardw re dose ep Ueber 22 4 1 2 Multipoint Communication eee 23 4 1 3 Communication Protocol eeeeeee 25 Sse COBfISUTatIOnD 3 cnt EHE EER TRUE 27 5 1 Configuring the Setup Parameters eese 29 5 2 Entering the Batch Parameters eene 31 5 3 Configuring the Options eese 33 5 4 Checking
20. er will be reset and a slow start will occur with a full time delay to ensure a correct start up The totals will not be reset and the batch quantity will remain unchanged HP289 12 Operation 3 2 2 Signal Timeout The Signal Timeout period defines a time interval which is used to detect if the flow has stopped If there is no signal input for a time greater than the Signal Timeout period the flow is deemed to have stopped The Signal Timeout period has two functions e To detect the loss of signal during a batch when the relays are energized In this case the Batcher will enter a Flow Alarm condition and de energize the relays e After the preset batch quantity has been reached and the relays de energize some overrun of flow may occur due to slow valve closure etc In this case the Signal Timeout is used to determine when the flow has ceased and thereby accurately determine the amount of overrun It is recommended that Signal Timeout periods be kept fairly short but long enough such that the timeout period is significantly longer than the time period between successive input pulses from the flowmeter at the minimum flowrate The instrument enables the user to set a time interval of up to 99 seconds to detect an absence of signal input If the Signal Timeout is set to 0 this function is disabled Flow Alarm If a Signal Timeout is set greater than zero and loss of signal is detected during a batch a Flow Alarm signal is outp
21. han 49 counts per second Note that due to the uneven pulse output spacing on this output the pulse output cannot be used to drive rate indicators The FLOW ALARM uses an identical circuit to the Output Pulse and is available on terminal 7 The Flow Alarm will output an alarm condition if the flow times out during a batch i e there is no flow registered for a time greater that the Signal Timeout period provided the Signal Timeout is greater than 0 The Flow Alarm output will switch on ie the signal goes low whenever an alarm condition exists The Alarm will switch off i e the signal goes high when the alarm is reset by pressing the DISPLAY key HP289 Operation 21 Connection of Output Pulse Flow Alarm is as follows Relay or Impulse Counter I ENS ED i 3l O Num 5 6ohms T 33V Zener O 12 ul l DC Supply Driving an External Relay or Impulse Counter DC Supply Q 1 Out 8 24V External Load Resistor 10K M l Logic Input 6ohms 7x 33V Zener nj e Driving a Logic Input such as a PLC or Electronic Counter HP289 22 Options 4 Options 4 4 The RS232 422 485 Interface Option With this option installed the circuits for both the RS232 and RS422 485 interfaces are provided as standard They can be used to interface to both printers and computers A number of standard printer protocols are b
22. lues of 0 25uF and 100 ohms will usually suffice Note that only AC voltage approved RC suppression networks should be used The basic principle of operation is that the capacitor prevents a series of sparks from arcing across the contact as the contact breaks The series resistor limits the current through the contact when the contact first makes HP289 44 7 2 HP289 Installation Terminal Wiring Designations Terminal 1 oo 10 tn 4 UC n2 9 10 11 12 13 14 Terminal 20 Terminal Description Configuration Link Signal Ground Not Used Remote DISPLAY Switch Remote BATCH SET Switch Not Used Flow Alarm Flow Common Flow Pulse Input Pulse Out DC Power Out 8 24 VDC DC Ground DC Power Input Not Used RS232 422 485 Option RS232 Signal Ground RS232 Data in RS232 Data Out RS422 485 Data Out RS422 485 Data Out RS422 485 Data In RS422 485 Data In RS232 CTS Relay Option amp Switches Remote RUN Switch Remote STOP Switch End of Batch Pump Control Signal Relay 2 Normally Open Relay 2 Normally Closed Relay 2 Common Relay 1 Normally Open Relay 1 Normally Closed Relay 1 Common Trouble Shooting 45 8 Trouble Shooting Batcher does not reset The Signal Timeout has been set to an excessively long period and has not timed out at the end of the last batch Batch will not start or relay 1 will not close Ensure that the instrument has not timed out as cont
23. nals 5 4 Exit to normal operation Setup Program Parameters 5 1 The following steps are displayed when BATCH is selected BATCH L Maximum Batch Size which can be entered 3 2 XXXXXX AUTO S Off On XXLXX Set to 0 if no limit on batch size Automatic restart feature Disable Enable If enabled automatically restarts the batch 3 2 4 xx xx mins sec after the end of the last batch START T Slow start time XX XX PREST XXXX COUNT dn up T OUT AOC En Dis Time in minutes seconds when Relay 2 3 2 will energize once the batch has started Prestop Quantity Quantity at which Relay 2 will de energize 3 2 before the end of the batch e g If the batch quantity is 100 liters and Prest is 2 liters relay 2 will de energize after 98 liters The Batch Total counts Up or Down Count down from the batch quantity 3 2 Count up from zero The Signal Timeout in seconds Setting to00 3 2 2 disables this feature Automatic Overrun Compensation Note that the Signal Timeout must be 3 2 5 greater than 0 i e enabled for this feature to work Enable Disable HP289 32 Step HP289 Configuration Display Description Text Ref OUT 30 Output on Terminal 30 PC Pump Control EOB End of Batch output AUTO R Auto Reset not displayed if Auto Restart is 3 2 programmed Step 3 above Off Batch Total must be manually reset before starting the next batch On The Batch can be automatically reset a
24. nd started by pressing only the RUN key 5 3 Step 1 a oo Configuration 33 Configuring the Options Display OPTION TEST END CAL BATCH Description Text Ref Options if installed Check Input Signals 5 4 Exit to normal operation Setup Program Parameters 5 1 Set Batch Parameters 5 2 If the RS232 422 485 option is installed the following will be displayed DF Eur USA Date XX2XX XX HOUR XX XX BAUD XXXX DATA 7 8 PARITY NP OP EP SIGNAL rs232 rs422 ID NO 0 1 99 Date Format 4 1 European i e days months years USA i e months days years Enter date as 4 1 Years Months Days Enter time as a 24 hour clock Hours Minutes Baudrate 300 600 1200 2400 4800 or 9600 Word length 7 bits 8 bits Parity No Parity Odd Parity Even Parity Signal Type RS232 RS422 RS485 Unit Identification Number None Id Number PTYPE xx Printer Computer Type 00 01 02 03 Standard Computer Printer EPSON CTM 290 Slip Printer Contrec Model 624 Printer EPSON TM290 2 Slip Printer HP289 34 Configuration Step Display Description Text Ref 04 Contrec Model 632 2 Printer 05 Syntest SP 210 Printer 20 Computer If a Printer Protocol is selected the following message is displayed 11 UNIT xx Units of measurement printed 00 None 01 Liters Ltrs 02 Gallons Gals 03 Barrels bbls 04 Pounds lbs 05 Grams gms 06 Kilograms kgs 07 Tons tons If a Computer
25. nterfaces will continue to be added the user should consult the factory for the latest protocols and or printer drivers Printer A ticket is printed each time the RESET key is pressed The instrument prints the ticket before resetting the resettable total Protocols are provided to drive the following printers Standard Computer Printer Note that the printer must have an RS232 Serial Interface EPSON CTM290 Slip Printer Contrec Model 624 EPSON TM290 2 Slip Printer Contrec Model 632 2 Syntest SP 210 ON tA RUF Consult with the factory if any other printer is to be interfaced with the instrument The tickets can also be printed with a number of different units of measure including liters and gallons The units of measure are selectable from a pre programmed list A CTS input is provided and prevents the instrument from transmitting any further characters to a printer if the printer buffer is full The CTS HP289 26 Options input is usually connected to the Data Buffer Full output from the printer If the printer buffer is large enough to handle the message output from the instrument then this input need not be used and should be left unconnected Computer The instrument receives and transmits messages in ASCII with all command strings to the instrument terminated by a carriage return While replies from the instrument are terminated with a carriage return and a line feed Xon Xoff protocol is also supported
26. parameter selection BATCH SET resets a flashing digit to zero STOP steps through the configuration sequences Note that the arrows in the RUN and DISPLAY key switches indicate that these switches can be used to change and increment digits respectively In stepping through the configuration sequence the Parameter Description is always displayed first followed by the actual value or parameter When a value or parameter can be changed it is always shown as flashing and the LED s in the switch panels are lit if that key switch can be used to change a value On first entering the Configuration routine the display will show CAL Setup Program parameters Batch Enter Batch parameters Option Options if installed Test Check Input Signals End Exit to Normal Operation HP289 28 Configuration The user can toggle between these modes using the DISPLAY key and by using the STOP key select the appropriate mode To exit Configuration step through the Setup program Batch program or Test program until the end and press the STOP key when End is displayed ensure the configuration link is removed HP289 5 1 Step 1 Display CAL BATCH OPTION TEST END Configuration Configuring the Setup Parameters Description Setup Program Parameters Set Batch Parameters Options if installed Check Input Signals Exit to normal operation The following steps are displayed when CAL is selected RESTOT SCALE Fact F d
27. propriate manual s and or drawing s Identify all model numbers exactly before making any connections A number of options and accessories may be added to the main instrument which are not shown on the basic user wiring Consult the appropriate option or accessory user manual before connecting it to the system In many cases a system wiring drawing is available and may be requested from HOFFER FLOW CONTROLS This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of HOFFER FLOW CONTROLS INC HOFFER FLOW CONTROLS policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering The information contained in this document is subject to change without notice HFC 9707 WARRANTY HOFFER FLOW CONTROLS INC warrants this unit to be free of defects in workmanship and materials provided that the unit was properly selected for the service intended properly installed and not misused Equipment returned transportation prepaid within 12 months after delivery of goods or 18 months from date of shipment for units destination outside the United States and is found by HOFFER FLOW CONTROLS inspection to be defective in workmanship or materials will be repaired or replaced at HOFFER FLOW
28. rcuits 39 MAG Coil TR on Z 9 I ae i MEL i 9 8 1 8 e g millivolt signal Use shielded __ 2 12 from a turbine flowmeter cable single input only Vas Redi Pulse CMOS or Pulse SR r on Z 11 a SRG REN 1 8 C w 9 White Black Q 8 yee Redi Pulse Open Collector fo ONG r on Y 1l NE EENE d d 1 8 r 9 White tus Cur p m HP289 40 Input Circuits 4 Squarewave CMOS or Pulse JE N on gt Common Q PEE GHI al 8 1 8 e g vortex pre amplifiers or magnetic flowmeters 5 Open Collector a on K g EERE i Common er HY 3E qs 1 8 a e g hall effect sensor 6 Reed Switch C on EE d TD AN a9 ERER N MV 1 8 s e g positive displacement flowmeters with reed switch output HP289 Input Circuits 41 6 2 Remote Key Switches Remote push buttons can be connected to the Model 214D 1 to duplicate the keys on the front panel The switches are wired as follows SI 2 RUN Q 28 m 2 q DISPLAY 9H SP GY BATCH H i SET Sls STOP d 29 HP289 42 Installation 7 Installation 7 1 General Terminal designations for the Model 214D Batch Controller are given on the following pages The cutout hole in the panel should be 5 5 139mm wide x 2 6 67mm high Two side clips are supplied to sec
29. rolled by the Signal Timeout and that a Flow Alarm condition does not prevail Pressing the Stop switch will cancel this condition Check for a fault on the flow input before restarting Batcher stops during a batch prior to batch end This could be due to the Signal Timeout having timed out Check for a fault in the system Ensure that the Signal Timeout period is significantly longer than the period between flowmeter pulses at the minimum flowrate No display Check for power to the instrument All 88888888 displayed The Batcher displays all eights on power up for 4 seconds as a display test If all eights continue to display after this period this is symptomatic of the power supply voltage being low Check the power input voltage Not counting If the Batcher does not count with the flowmeter connected and flow passing through it first check the connections and then ensure the DIP switches on the rear of the instrument are set correctly for the attached flowmeter It is possible to manually test the input circuit of the Batcher by setting the input configuration for a Reed Switch and pulsing across the signal and with a wire link When doing this the HP289 46 Trouble Shooting Scaling Factor should be set to 1 and the Resolution to whole numbers Counting erratically This can be caused by two factors Setting the input circuit incorrectly Lack of shielding on the input wiring Ensure that the input
30. selection DIP switch is correctly set for the flowmeter attached Shield the input signal with the shield connected at the batch controller only Instrument acting erratically Erratic operation can be the result of severe electrical interference Considerable attention has been given to designing the Batch Controller to withstand electrical interference However in extreme cases loads may be encountered which are exceptionally inductive and may require additional protection One measure is to use an RC Suppression Network as described in the previous section of this manual Another remedy for this problem is to use an isolating relay to switch the load and use the Batcher to drive the isolating relay The isolating relay should be mounted away from the Batcher and from the signal wiring No end of batch pulse output or flow alarm This fault is usually caused by lack of a pull up resistor or load on the output The outputs have no internal pull up resistors and require on an external load HP289 Trouble Shooting 47 8 1 Error Codes The instrument has extensive self test facilities and will display an error code if it detects an invalid condition If the instrument displays an error code other than those listed below please contact the factory Error codes are displayed as Err and a list of the commonly encountered codes are given below Input Errors 11 Invalid input configuration programmed 13 Signal Timeout see S
31. t is configured on a new batch is commenced each time the RUN key is pressed Batch PAUSE z Quantity Relay 1 Relay 2 i I Start Time Prestop gt lt i l Quantity Auto Restart Ed of mec Bah d End of Batch J The Batch Controller can be configured to either count up from zero on each batch or to count down from the preset batch quantity HP289 Operation 11 3 2 1 Control Relays The two control relays can be set up to control a single valve or a dual valve with slow stop and or slow start Alternatively the second relay can be used to control a pump The relay operation is shown on the previous two pages A time delay between the Batch Start and the time when Relay 2 energizes can be set to provide a soft start up The delay can range from 0 no delay to 79 minutes and 59 seconds A Prestop quantity i e the quantity to the end of the batch can also be set to provide a slowdown of flow at the end of the batch thereby enabling precise quantities to be batched The process can be stopped at any time by pressing the STOP key whereby both relays will immediately de energize The process can then be aborted and the batcher reset by pressing the STOP key again or the process continued by pressing the RUN key If the process is continued and the instrument was previously in the slow start or main control phases i e not the prestop phase the tim
32. uantity will be retained in the non volatile memory and will not alter until changed by the user The batch quantity can only be set while the instrument is in non operational state such as when the batch is complete or if the batch process has been interrupted However the Batch key can be pressed while in the run state and the batch quantity displayed All digits will flash to signal the quantity cannot be changed HP289 Operation 7 3 1 2 Starting a Batch To start the process the RUN key is pressed The Run LED will light and the instrument will begin to totalize from zero or if programmed to count down the display will decrement from the batch quantity The batcher has two control relays which are energized and de energized as described in Section 3 2 3 1 3 Stopping The process can be stopped at any time by pressing the STOP key Once the process has been interrupted in this way it can be continued by pressing the RUN key or the process can be aborted and the instrument reset by pressing the STOP key a second time When the process is interrupted the STOP LED will flash to prompt the operator to either restart or abort the batch 3 1 4 Resetting The instrument can be configured to reset in one of two ways e At the end of a batch the STOP key must be pressed to reset the Batch Total If the instrument is configured to count down the Batch Total will then reset to the preset quantity If it is configured to count
33. uilt into the instrument 4 1 1 Hardware The following diagram provides an overview of the RS232 RS422 RS485 communications hardware All three interfaces are available on the rear terminal strips and the user can select either one by making the appropriate connections The RS232 interface is primarily used with printers or for simple communication with a computer over a short distance The RS422 and RS485 interfaces are used for communication over a long distance or in applications requiring multipoint communication 24 4 RS422 Out oaz O 26 lt RS422 In oaz 0 O 21 Dataln N RS232 O 22 Data Out gt Exam 27 CTS B 20 Ground HP289 Options 23 4 1 2 Multipoint Communication Multipoint Communication is a system whereby a number of instruments can be addressed over a dual twisted pair interface Up to 32 instruments can be connected to a common bus using the RS422 and RS485 interfaces as shown below To convert the RS422 interface to an RS485 interface the RS422 Data In Terminal must be connected to the RS422 Data Out Terminal and the RS422 Data In Terminal must be connected to the RS422 Data Out Terminal These connections will convert the RS422 4 wire interface to the RS485 2 wire interface as shown in Figure 2 Each instrument can be configured with a unique address which is used by the Master Controller e g an IBM PC to identify each instrument The Controller
34. up the Batch Total will clear to zero e If Auto Reset is configured on the Batch Total will automatically reset when the RUN key is pressed to start the next batch 3 1 5 Displayed Information The display will normally show the Batch Total which is the total count for the current batch and is reset on each new batch The DISPLAY key can be used to display the following additional information Rate On the first press of the DISPLAY key the display shows RATE for one second followed by the flowrate HP289 8 Operation Accumulated Total On the next press of the DISPLAY key the display shows ACC for one second followed by the accumulated total The Accumulated Total cannot be reset during normal operation 3 1 6 Limit on Batch Size To prevent accidental entry of large batch quantities a maximum batch limit can be set during configuration The operator is then prevented from entering a batch quantity which exceeds this predetermined value HP289 Operation 9 3 2 Batch Operations The Batch Control functions can be configured to operate in one of two ways 1 At the end of the batch the STOP key must be pressed to reset the Batch Total This must be done before another batch can be started Run Ba ERES Count Up Relay 1 NE H Relay 2 i l Start Time i Prestop la Boned End of i Batch E End of Batch b HP289 10 Operation 2 If Automatic Rese
35. ure the instrument into the panel A case grounding point is provided via a ground lug on the side of the case Note that this grounding point is for the case only and there is complete electrical isolation between this point and all electronic circuits For EMC purposes or when the instrument is connected to AC power source this point must be connected to a good earth ground using a multi stranded braided wire or strap The two control relays are changeover relays and both the normally open and normally closed terminals are available on the rear terminal strip All relay outputs are totally isolated from the case and from the internal circuitry A Supply Output Voltage is provided to power sensors This output will provide a regulated voltage of 8 to 24 volts and the voltage is adjustable by means of the potentiometer on the rear panel Maximum current is 50mA and the instrument comes with the voltage factory set at 24 Volts When the instrument is powered from a DC power source the maximum output voltage on the Supply Output is the DC Input Voltage less 3 5 volts The instrument will operate from either 12 28 volts DC or from the AC line The AC voltage is factory set to either 95 135 VAC 110 VAC nominal or 190 260 VAC 220 VAC nominal An internal AC transformer provides full isolation between the AC line and the electronic circuits The DC Ground terminal 12 provides a common ground for the 12 28 Volt power input the 8 2
36. ures or sticking valves In calculating the amount of overrun to be compensated for the Batch Controller uses the average overrun on the last three batches The overrun is defined as the difference between the batch quantity set by the user and the batch total once the flow has stopped With Automatic Overrun Compensation the Signal Timeout must be set to a value greater than zero Once the Batch Controller de energizes both relays the instrument looks for a Signal Timeout indicating that the maximum interval between pulses has occurred and that the flow must therefore have stopped It then uses the overrun quantity measured during this period and averages this together with the overrun on the last two batches The resulting value is then subtracted from the next batch HP289 16 Operation 3 3 Calculation of Rate and Total 3 3 1 Frequency Input The flowrate R is calculated as follows JxH S R where f is the input frequency in Hz H is the timebase of rate and is 1 for seconds 60 for minutes 3600 for hours and 86 400 for days S is the Scaling Factor The Scaling Factor S is equal to the K factor of the flowmeter expressed in pulses per unit volume The user sets the Scaling Factor and selects the timebase during the configuration process as detailed in Section 5 of this manual HP289 Operation 17 3 3 2 Filtering Frequency fluctuations caused by pulsating flow through a flowmeter often makes the
37. utted on terminal 7 In addition both control relays are de energized The Flow Alarm output and condition is maintained until acknowledged by pressing the STOP key The alarm condition is also signaled to the operator by the flashing STOP LED Once acknowledged the process can then be reset via the STOP key or continued by pressing the RUN key HP289 Operation 13 3 2 3 End of Batch The End of Batch is defined as being when the Batch Quantity is reached the flow has stopped and the Signal Timeout period has expired If the Signal Timeout is set to zero the End of Batch is defined as being when the Batch Quantity is reached regardless of whether the flow has stopped The Batch Controller cannot be reset or restarted until the End of Batch and similarly for an RS232 422 485 interface data will not be output until the End of Batch has been determined Consequently it is strongly recommended that the Signal Timeout period be kept fairly short Batch i cee Rest Signal End of Signal Timeout Batch End of Batch Timeout 0 End of Batch Signal An End of Batch signal from an open collector transistor is output on terminal 30 and the output is identical to the Output Pulse circuit as shown in Section 3 7 When reaching the End of Batch the output transistor is switched on and will remain in the on state until the instrument is reset
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