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Omega FC-21 Automobile Parts User Manual

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1. 53 8 2 23 Control input test RR 53 8 2 24 Battery Voltage TSE a 54 8 2 25 Data logger utility Ser 54 8 3 Internal Fuse Replacement 55 9 RS 232 SERIAL PORT 9 1 RS 232 Serial Port aan 56 9 2 Instrument Setup by PC Over Serial 56 9 3 Operation of Serial Communication Port with Printers 56 04 FC 21 RS 232 ena eain at 56 10 RS 485 SERIAL PORT 10 1 HS 485 Serial Port Descriptor o ren tutor name 57 10 ER 61 11 p ES 57 10 3 Operation of Serial Communication Port with PC 57 10 4 21 RS 485 Port Pinout Lusssmeeessenems nsmnd eesanstnneninmnidenide 7 11 FLOW COMPUTER SETUP SOFTWARE 11 1 System 58 11 2 Cable and Wiring Requirements 58 11 3 Installation Tor Windows M3 1 58 11 4 Using the Flow Computer Setup Software 59 Jt Norte rd PRIN 59 EEE GR EE 59 VS VIGW TaD 60 EE RR EN 60 12 GLOSSARY OF TERMS 12 Glossary
2. NOLLV LIOX3 HOLOV 3 83 HOLOV 4 VM NOLLVNINHIL YIDDIYL HOLOV3M MOGNIM SSVd MOT asind LNdNI3S1Nd WHV1V 9 MOT 1093138 1 1534 5 AV13G INIL OLNV HO1V8 HO1V8 HO1V8 IN3ADHISNI SNNAN dNLAS MYOMLAN dfi13S 4138 JALLVELSININGV INIHd 90T1VIVA 40135 9 1VIH3S 32019 40135 1 1 81 dNLAS SAV 134 dNLAS LAdLNO dNL3S LAdLNO 451 40135 531193 GIN TH Las LNdNI XNV dNLAS LNdNI MOTH 40145 S30v Id uaria S3ovid S30v Id HOLdIHISIA 31vadn HOLdIHISIA 3sva HOLdIHISIA 5 SHOLVOIGNI SHOLVDIG N I d nias 3univaadrar YANO IVINIO3Q 1 avd 3NIL3LvY ALISN3G SLINN SSVIN ALISN3G WLOL WLOL 40135 MOTH 193735 AdAL LNAINNYLSNI dNLas Z3 LOATAS 69 WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for period of 13 months from date of purchase WARRANTY adds an additiona
3. RET 31 m ua Ti ie i ha 9 55 FC 21 Flow Computer 9 RS 232 Serial Port 9 1 RS 232 Port Description The FC 21 has general purpose RS 232 Port which may be used for any one of the following purposes Transaction Printing Data Logging Remote Metering by Modem optional Computer Communication Link Configuration by Computer Print System Setup Print Calibration Malfunction History 9 2 Instrument Setup by PC s over Serial Port A Diskette program is provided with the FC 21 that enables the user to rapidly configure the FC 21 using a Personal Computer Included on the diskette are common instrument applications which may be used as a starting point for your application This permits the user to have an excellent starting point and helps speed the user through the instrument setup 9 3 Operation of Serial Communication Port with Printers FC 21 s RS 232 channel supports a number of operating modes One of these modes is intended to support operation with a printer in metering applications requiring transaction printing data logging and or printing of calibration and maintenance reports For transaction printing the user defines the items to be included in the printed document The user can also select what initiates the transaction print generated as part of the setup of the instrument The transaction document may be initiated via
4. ENTER i Advance To 29 FC 21 Flow Computer Notes Press ENTER at this prompt to Set Fluid Properties Enter the Reference Density This is used in the calculation of density when you have a temp transmitter and used for corrected flow calculation if you have a density transmitter Enter the Reference Temperature Enter the proper Expansion Factor If Temp Compensated for Mass or Corrected Volume See Section 7 4 Calculating the Expansion Factor Enter the Calibration Density This is used in calculation of flow for analog inputs using SQRT Enter the Viscosity A Coefficient See section 7 5 Computation of Viscosity Coef A and B Enter the Viscosity B Coefficient See section 7 5 Computation of Viscosity Coef A and B Enter the Base Density H2O 9 4C This is used in the centistoke calculation for UVC Press ENTER at this prompt to setup the Pulse Output Select the desired Pulse Output Usage Select the desired Pulse Width for the Pulse Output Enter the desired Pulse Value for the Pulse Output Units per Pulse FC 21 Flow Computer Sub menus Display Notes 6 4 14 SETUF ANALOG OUTPUT Press ENTER when Analog is flashing to SETUP ANALOG OUTPUT setup the Analog Output Select the desired Analog Output Usage Only if Rate selected amp Flow EQ Mass Cor Vol Select the desired Analog Output Flow Select the desired current range f
5. ENTER i 24 Notes Press ENTER when Rate is flashing to configure the Ratemeter Indicators Select the desired Rate Time Base Enter the desired Descriptor for the Ratemeter Select the desired Rate Decimal Place 0 3 decimal places allowed Enter desired Rate Averaging Filter Enter desired Percent of Change for Quick Update If the current flowrate deviates by an amount greater than the percentage value entered the Rate Averaging is inhibited See Page 57 for more details Press ENTER when Temp is flashing to configure the Temperature Indicators Enter the desired Temperature Descriptor Enter the desired Temperature Scale Select the desired Temperature Decimal Place 0 3 decimal places allowed Sub menus 6 4 8 SETUP FLOW INPUT Pulse Ain amp PS A B NOTE Ain Single Pulse PS A B Pulse Security Qx1 Quadrature Qx2 Quadrature x 2 Through 16 Points ENTER Il anal aba m ENTER i mon 1 i 25 FC 21 Flow Computer Notes Press ENTER to begin setup of Flow Input Select the desired Excitation Voltage Press ENTER when Pulse is flashing to configure the flow input for Pulse signals Enter the desired Pulse type See side note Select the desired Input Pulse Trigger Level
6. gt VN 2 E US Flowmeter Temperature Transmitter Solenoid Valve Optional Calculations Volume Flow As calculated in section 3 1 Corrected Volume Flow Temp Transmitter Corrected Vol Flow volume flow 1 Therm Exp Coef Tf Tref 10 FC 21 Flow Computer 4 WIRING Batcher 4 1 Typical Batcher Wiring Wiring V DC OUTPUT Q Pignal PULSE IN 1 Vin 5 PULSE IN 2 lin 5 COMMON FLOW SENSOR o ERE EEIT SENS RTDSENS lin Stop Start CNTR IN 1 CNTR IN 2 SEE USER CNTR IN 3 MANUAL COMMON PULSE OUTPUT 123456 PULSE OUTPUT Remote Counter ANALOG OUTPUT ANALOG OUTPUT 20 mA MOV 115 VAC recommended NC 25 COM RLY1 26 COM RLY3 NO 27 NO 115 COM RLY2 COM RLY4 SIE SOLENOID VALVE EC LA 115 VAC AC LINE POWER IN AC LINE Rate Total 4 2 Typical Rate Total Wiring Wiring V OUTPUT Q Signal PULSE IN 1 Vin Ps PULSE IN 2 lin p Common FLOW SENSOR i TRENT RTDSENS DIN RID T RTDSENS CNTR IN 1 CNTR IN 2 SEE USER CNTR IN 3 MANUAL 123456 COMMON PULSE OUTPUT Remote Counter STRIP CHART PULSE OUTPUT ANALOG OUTPUT ANALOG OUTPUT 420 1 COM RLY1 COM RL
7. 61 13 DIAGNOSIS AND TROUBLESHOOTING 13 1 Response of FC 21 on Error or Alarm 65 13 2 Diagnosis Flow Chart and Troubleshooting 66 13 3 Error amp Warning Messages 67 13 3 1 Sensor Process Alarms svarene 67 13 3 2 Self Test Alarms danskene 68 APPENDIX A Setup Men s EE EE EEE EE 69 Unit Description Unit Features FC 21 Flow Computer 1 Description 1 1 Unit Description The FC 21 Flow Computer satisfies the instrument requirements for variety of flowmeter types in liquid applications Multiple flow equations and instrument functions are available in a single unit with many advanced features The alphanumeric display shows measured and calculated parameters in easy to understand format Single key direct access to measurements and display scrolling is supported The versatility of the FC 21 permits a wide measure of versatility within the instrument package The various hardware inputs and outputs can be soft assigned to meet a variety of common application needs The user soft selects the usage of each input output while configuring the instrument Consider the following illustrative examples The isolated analog output can be chosen to follow volume flow corrected volume flow mass flow temperature or density by means of a menu selection Most hardwar
8. Shop online at www omega com e mail info Comega com ism EON NEAN NES mium arum STAMFORD MANCHESTER UK FC 21 99579 08 21 03 Flow Computer Where Do I Find Everything I Need for Process Measurement and Control OMEGA Of Course hop online at www omega com TEMPERATURE id Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies A Wire Thermocouple RTD amp Thermistor A Calibrators amp Ice Point References A Recorders Controllers amp Process Monitors A Infrared Pyrometers PRESSURE STRAIN AND FORCE WA Transducers amp Strain Gages lA Load Cells amp Pressure Gages A Displacement Transducers A Instrumentation amp Accessories FLOW LEVEL 4 Rotameters Gas Mass Flowmeters amp Flow Computers 7 Air Velocity Indicators Turbine Paddlewheel Systems lA Totalizers amp Batch Controllers pH CONDUCTIVITY A pH Electrodes Testers amp Accessories 4 Benchtop Laboratory Meters I Controllers Calibrators Simulators amp Pumps LY Industrial amp Conductivity Equipment DATA ACQUISITION lA Data Acquisition amp Engineering Software A Communications Based Acquisition Systems lt Plug in Cards for Apple IBM amp Compatibles Datalogging Systems A Recorders Printers amp Plotters HEATERS Heating Cable A Cartridge amp Strip Heaters 4 Immersion amp Band Heaters
9. NIOHVW 401 HLONIT 9 Andino dnias SALLOVNI Waviv STVIG3Y HOYHYI H3MSNV IOHLNOO 0334 dHVMQHVH dNDNYH NO TIVO 1no Two ON LNO TIYO ALIHVd anya 39143A WIIS 32019 320719 INIL YILNI 193135 0010 vau 1 8 SLNANI JOHLNOD 40135 30vsnN 3ovsn 3ovsn LNdNI LAdNI JOHLNOD JOHLNOD JOHLNOD SIS3YILSAH 143104135 Avaa Av T3H Av aH aos 1104 31V2S MOT Andino 3dALMOTS 39vsnindno LNO DOTYNY LNO 100 3S1Nd 8 5 19410 ui Jeedde eseu 3930p 4309 3300 ALISN3G YOLOVA ALISN3GQ OZH ALISOOSIA ALISOOSIA NOISNVdX3 938 NYVIV Wuviv avos 31V08 1 3dAL ind xnv MOTXNV 1YNDISXNV xnv 3ONVH wavivaiva wavivaiva 330109 avos 371998 MOT HOHMOTH moimoi NOLVZUVAN
10. 4 Ls STOP er m DENS TIME HELP On line help is provided to assist the operator in using this product The help is available during RUN and SETUP modes simply by pressing the HELP key The HELP key is used to enter decimals when entering numeric values FUNCTION KEYS In the RUN mode several keys have a special direct access feature to display an item of interest RATE TOTAL PRE 1 etc Press the key to view your choice Press the SCROLL key to return to scrolling display CLEARING TOTALIZER To clear the total you must press the TOTAL Function Key 3 times You will be asked to verify this action The operator will be prompted to enter password if the unit is locked NOTE Batcher Mode simply press the CLEAR key to reset the total the batcher must be stopped or finished batching It is not necessary to press the TOTAL Function Key first CLEARING GRAND TOTAL To clear the grand total you must press the GRAND Function Key 3 times You will be asked to verify this action The supervisor will be prompted to enter the supervisor password if the unit is locked PRESET KEYS In the RUN mode PRE 1 amp PRE 2 keys are used to view and or change the preset setpoints To view the Presets simply press the desired Preset key Rapidly press the Preset keys 3 times then press the Clear key for direct editing of the preset setpoints SCROLL
11. to common Trigger Level menu selectable High Level Input Logic On 3 to 30 VDC Logic Off 0 to 1 VDC Low Level Input mag pickup Selectable sensitivity 10 mV amp 100 mV Minimum Count Speed User selectable Maximum Count Speed Selectable 0 to 20kHz Overvoltage Protection 50 VDC Fast Transient Protected to 500 VDC Capacitive Clamp Compensation Input The compensation input is menu selectable for temperature density or not used Operation Ratiometric Accuracy 0 0196 FS Thermal Drift Less than 100 ppm C Basic Measurement Resolution 16 bit Update Rate 1 update sec minimum Automatic Fault detection Signal Over range under range Current Loop Broken RTD short RTD open Fault mode to user defined default settings Transient Protection 500 V Capacitive Clamp Reverse Polarity No ill effects Over Voltage Limit Voltage Input 50 VDC Available Input Ranges Voltage 0 10 VDC 0 5 VDC 1 5 VDC Current 4 20 mA 0 20 mA Resistance 100 Ohms DIN RTD 100 Ohm DIN RTD DIN 42 760 BS 1904 Three Wire Lead Compensation Internal RTD linearization learns ice point resistance 1 mA Excitation current with reverse polarity protection Temperature Resolution 0 01 C Control Inputs Switch Inputs are menu selectable for Start Stop Reset Lock Inhibit Alarm Acknowledge Print or Not Used Control Input Specifications Input Scan Rate 10 scans per second Logic 1 4 30 VDC Logic 0 0 0 8 VDC Transient Suppressi
12. 6 4 24 SETUP NETWORK CARD optional l irin Fana anai ENTER i Advance To o jh MEG 37 FC 21 Flow Computer Press Enter to setup Network Card Select desired Network Protocol Enter the device address on network 00 255 Select the desired Baud Rate Select the desired Parity FC 21 Flow Computer General Operation Orifice Flowmeter Considerations Flow Equations 7 Principle Of Operation 7 1 General The FC 21 Flow Computer uses several internal calculations to compute the compensated flow based on specific data input Several computations are performed to arrive at the uncompensated flow temperature density and viscosity This information is then used to compute the Corrected Volume Flow or Mass Flow 7 2 Orifice Flowmeter Considerations Head class flowmeters are supplied by the manufacturers with 4 20 mA output span which is already in flow units The FC 21 permits the user to enter this flowmeter information directly However closely associated with this information is the density that was assumed during flowmeter calibration This information must also be input if the user is to obtain maximum accuracy It is assumed that the user has the printout from standardized orifice sizing program for the particular device he will be using Such standardized printouts list all the necessary information which th
13. Select the desired Low Pass Filter Max Count Speed Select the proper input termination Enter the desired Maximum Sample Window Time 1 99 sec Enter the desired K Factor Type If Avg selected Enter the desired Average K Factor If LinTbl selected Enter the desired frequency K Factor pair for each point in the Linearization Table NOTE Enter 0 for Fre value of any point other than 01 to exit the routine and use the values entered up to that point Enter the desired volumetric Low Rate Alarm This will trigger an alarm message if alarm conditions occur The relays are not affected Enter the desired volumetric High Rate Alarm This will trigger an alarm message if alarm conditions occur The relays are not affected FC 21 Flow Computer Submenus 6 4 9 SETUP FLOW INPUT Pulse Quadrature Qx1 or Qx2 NOTE Ain Single Pulse PS A B Pulse Security Qx1 Quadrature Qx2 Quadrature x 2 Through 16 Points Through 16 Points 1 ENTER i uc VE 26 Notes Press ENTER to begin setup of Flow Input Select the desired Excitation Voltage Press ENTER when Pulse is flashing to configure the flow input for Pulse signals Enter the desired Pulse type See side note Select the desired Input Pulse Trigger Level Select the
14. FC 21 Flow Computer RS 232 Serial Port 5 3 5 RS 232 Serial Port Operation in Rate Total mode Rate Total mode The RS 232 serial port can be used for programming using the Setup Disk or for communicating to printers and computers in the Operating Mode Run Mode PC Communications The Setup Disk also allows the user to query the unit for operating status such as Flow Rate Flow Total Temperature Density Presets etc Operation of RS 232 Serial Port with Printers Transaction Printing For transaction printing the user defines the items to be included in the printed document see section 6 3 20 SET DATA OUTPUT Select list The transaction document can be initiated by pressing the PRINT key or by remote contact closure Data Logging In data logging the user defines the items to be included in each data log see section 6 3 20 SET PRINTER OUTPUT Select list The user can also select when time of day or how often print interval the data log is to be made see section 6 3 19 SET PRINTER OUTPUT Configure System Setup and Maintenance Report The system setup and maintenance report lists all of the instrument setup parameters and usage for the current instrument configuration The audit trail information and status report is also printed This report is initiated in the Test menu see section 8 2 3 PRINT SYSTEM SETUP RS 485 Serial Port 5 3 6 RS 485 Serial Port optional Rate Total mode RS 485 Port Desc
15. Rapidly press the Scroll key twice to setup display list Press the CLEAR key to remove old scroll list Press the function key for the item you wish to add Use the V keys to assign the line PRINT The PRINT key is used to print on demand When the PRINT key is pressed user defined list of data TOTAL RATE PRE 1 etc is sent to the RS 232 port timed message of PRINTING will be displayed to acknowledge the print request SPECIAL BATCHING KEYS The START and STOP keys are used only when batching to start and stop batches The CLEAR key will clear the total without first pressing the TOTAL key unit must be stopped All other keys work the same in both Rate Total mode and Batch mode The Start and Stop keys operation are set by the control input settings The Start options are START or RESET START The Stop options are STOP or STOP RESET MENU KEY The MENU key is used to enter the Setup and Test modes Press the MENU key to enter the Setup and Test modes See section 6 for Setup mode section 8 for Test mode The MENU key is used as escape in Setup and Test Programming Pressing the MENU key wile programming in the Sub Menu groups will backup the display to that Sub Menu group heading Pressing the MENU key while viewing the Sub Menu groups will backup the display to the Top Level Menu ACKNOWLEDGING ALARMS Most alarm messages are self clearing Press the ENTER key to acknowledge and clear alarms NOTE Some ke
16. The keys labeled 9 CLEAR and ENTER are used to enter numerical values leading will assume that you intend to enter minus sign Press the CLEAR key to clear the existing value and to enable editing TEXT CHARACTER ENTRY Some setup items i e Descriptors Units Label require the user to enter text characters Press CLEAR to enable editing The UP and DOWN arrow keys are used to scroll through the available character sets for each individual character Press the ENTER key to accept the character and advance to the next character FC 21 Flow Computer Menus 6 2 1 TOP LEVEL SETUP MENU 6 2 2 EZ Setup Submenu Groups Through 6 2 EZ Setup The EZ Setup routine is quick and easy way to configure the unit for the most commonly used instrument functions This setup assumes that you are measuring Volumetric Flow using a high level DC Pulsing flow sensor Entering the EZ Setup mode automatically sets many features This may cause any previously programmed information to be lost or reset For complete customized configuration see sections 6 3 and 6 4 Display Notes Select Setup to enter the instrument setup routine ENTER i ET CETIIE Banan Banan Pana Banas w Press ENTER to begin EZ Setup routine ENTER i THE FLIRE Confirm that you want to run EZ Setup Caution Any previous program settings may be lost or reset Ins
17. Volume Flow K Factor Hz Pulse Input UVC input frequency time scale factor T Volume Flow K Factor Hz cstk Analog Input Linear Volume Flow input flow Analog Input Linear Table Volume Flow input flow correction factor input flow Analog Input Orifice or External SQRT v calibrated density Volume Flow input flow v density Analog Input Orifice Linear Table or External SQRT Linear Table v calibrated density T Volume Flow CF rn input flow v density Corrected Volume Flow Computation Temperature Transmitter Standard Volume Flow volume flow 1 Therm Exp Coef Tf Tref Density Transmitter density Standard Volume Flow volume flow reference density Mass Flow Computation Mass Flow volume flow density These special flow equations are not available in the standard unit They are to be offered to OEMs or as special order items 39 FC 21 Flow Computer Flow Equations 7 3 Flow Equations Continued API 2540 Equation The American Petroleum Institute in a joint program with the National Bureau of Standards NIST developed density equation based on 463 samples of five different oil products The results of this work are incorporated into Chap 11 1 Volume Correction Factors of API Standard 2540 1987 The density equation is based on the thermal expansion coefficient of the product at 60 F 15 6 C base te
18. and press Enter This message is displayed during calibration This message is displayed when the 10V calibration is finished The display will automatically return to the Calibrate CH1 10V submenu Press the Down arrow key to advance to the CH2 OV calibration FC 21 Flow Computer Sub menus Display 8 2 12 Calibrate CH2 0 Submenu Group 8 2 13 Calibrate CH2 10V Submenu Group 8 2 14 Calibrate 100 ohm RTD Submenu Group Advance to 50 Notes To Calibrate Connect Voltage Source TB1 5 TB1 4 Input OV and press Enter This message is displayed during calibration This message is displayed when the OV calibration is finished The display will automatically return to the Calibrate CH2 OV top level menu Press the Down arrow key to advance to the CH2 10V calibration To Calibrate Connect Voltage Source TB1 5 TB1 4 Input 10V and press Enter This message is displayed during calibration This message is displayed when the 10V calibration is finished The display will automatically return to the Calibrate CH2 10V top level menu Press the Down arrow key to advance to the 100 ohm RTD calibration To Calibrate Connect a jumper wire between TB1 6 and TB1 7 Place a 100 ohm 0 1 resistor between TB1 7 and TB1 8 Press enter to calibrate This message is displayed during cal
19. 4 Do Not Use 5 Ground 6 Do Not Use 7 Do Not Use 8 Do Not Use 9 Do Not Use 56 FC 21 Flow Computer 10 RS 485 Serial Port optional 10 1 RS 485 Port Description The FC 21 has an optional general purpose RS 485 Port which may be used for any one of the following purposes Accessing Process Parameters Rate Temperatures Density Setpoints Month Day Year Hour Minutes Seconds etc Accessing System Alarms System Process Self Test Service Test Errors Accessing Totalizers Totalizer and Grand Totalizer Executing Various Action Routines Reset Alarms Reset Totalizers Print Transaction Reset Error History Start Stop Clear The optional RS 485 card utilizes Modbus RTU protocol to access variety of pro cess parameters and totalizers In addition action routines can be executed For further information contact factory and request RS 485 Protocol manual for FC 21 10 3 Operation of Serial Communication Port with PC The flow computer s RS 485 channel supports number of Modbus RTU com mands Refer to port pinout below for wiring details Modbus RTU drivers are available from third party sources for a variety of Man Machine Interface software for IBM compatible PC s The user reads and writes information from to the RS 485 using the Modbus RTU commands The FC 21 then responds to these information and command requests Process variables and totalizers are read in register pairs in floating point forma
20. Ovrn or NA If Relay 4 Selected Choose Rate Total Aux Alrm or NA If Rate Aux selected enter desired relay activation delay value Select the desired Relay Activation for Rate Aux Low Relay activates when reading is below setpoint High Relay activates when reading is above setpoint If Total Selected Enter desired Relay Duration Enter the desired Setpoint If Rate selected Enter desired Relay Hysteresis ENTER i RELAY NOTES amp CONSIDERATIONS 1 Relay activation is based on the computed readings not the displayed value Therefore the display damping factor will not affect the relay response time The RELAY N DELAY feature allows the user to enter a time delay for relay activation This feature is very useful in applications where short over under range conditions are not considered alarm conditions The Relay is a delay on make and delay on break Alarm condition must be continuously present for a time greater than the entered RELAY N DELAY in order for alarm to activate Once alarmed the alarm condition must be continuously absent for a time greater than the entered RELAY N DELAY in order for the alarm condition to be reset When INSTRUMENT TYPE is set to batcher Relay 1 is reserved for PRESET and Relay 2 is reserved for PREWARN Setting the relays to NA Not Assigned will allow the relay activation to be controlled via the RS 232 Serial and or R
21. Step 9 Total Preset Comparisons The total associated with a preset function is then compared against the corresponding preset value and any required control actions taken Step 10 Pulse Output Service The pulse output is next updated by scaling the total increment which has just been determined by the pulse output scaler and summing it to any residual pulse output amount Step 11 Update Display and Printer Output The instrument finally runs a task to update the various table entries associated with the front panel display and serial outputs FC 21 Flow Computer Setup Mode The setup mode is password protected by means of a numeric lock out code established by the user In addition secret manufacturers numeric unlock entry sequence is available The system also provides a minimum implementation of an audit trail which tracks significant setup changes to the unit This feature is increasingly being found of benefit to users or simply required by Weights and Measurement Officials in systems used in commerce trade or custody transfer applications A Worksheet is provided to assist the user in setting up the instrument In addition a software program is available which runs on a PC using a RS 232 Serial for connection to the Flow Computer Illustrative examples may be down loaded in this manner The setup mode has numerous subgrouping of parameters needed for flow calculations There is a well conceived hierarchy to
22. and second Spec Grav the Expansion Factor C Factor can be computed as follows EQ2 Used for Liquid Mass and Corrected Volume Equations C 1 V Spec Grav 2 Ref Spec Grav 1 000 000 Temp 2 Ref Temp Given the reference temperature reference density second temp and second density the Expansion Factor C Factor can be computed as follows EQ3 Used for Liquid Mass and Corrected Volume Equations _ 1 V Dens 2 Ref Dens din 1 000 000 41 FC 21 Flow Computer Computation of Viscosity Coef A amp B 7 5 Computation of Viscosity Coef A and B The flow computer solves an equation which computes the viscosity as a function of temperature Two parameters must be entered for this calculation to be performed These are the setup parameters Viscosity Coef and Viscosity Coef Alternately if your intended fluid is not listed the Viscosity Coef A and B can be derived from two known temperature viscosity pairs Begin by obtaining this information for you intended fluid Convert these known points to units of Degrees F and centipoise cP The information is now in a suitable form to compute the Viscosity Coef A and Viscosity Coef B using the following equation based on the fluid state For a liquid A and B are computed as follows T1 459 67 T2 459 67 In cP1 cP2 B T2 459 67 T1 459 67 cP1 A exp B T1 459 67 cP Density of
23. BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Purchase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2002 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without t
24. HX To find KN use this formula Input x KA KB KB 43 FC 21 Flow Computer Menus 8 1 1 TOP LEVEL TEST MENUS 8 Test Service and Maintenance 8 1 Test Menus Display STOP a START STOP a START STOP a START STOP START STOP START STOP START STOP START PGE irali a a gt a 4 a STOP yp Lt 44 Notes Select Test to enter the instrument test amp calibration routine NOTE Supervisor Service password required to gain access to this mode Refer to Page 40 for Details Refer to Page 40 for Details Refer to Page 40 for Details Refer to Page 41 Details Refer to Page 41 for Details Refer to Pages 42 46 for Details Refer to Page 46 Details Refer to Page 47 for Details Refer to Page 47 for Details Refer to Page 47 for Details Refer to Page 48 for Details Refer to Page 48 for Details Refer to Page 48 for Details Refer to Page 49 for Details Refer to Page 49 for Details FC 21 Flow Computer 8 2 Test Sub Menus Sub menus Display Notes 821 Audit Trail Press Enter to view the audit trail information Audit Trail Submenu Group C O The audit trail is viewed in this format nnnnn number of critical
25. TB1 2 and or TB1 5 Display should show voltage being input Use voltage meter to verify input To check current input accuracy Use TB1 4 as Reference Ground input 0 20mA to TB1 3 and or TB1 8 Display should show current being input Use ammeter to verify input To check RTD input accuracy Connect a jumper wire between TB1 6 and TB1 7 Place a 100 ohm 0 1 resistor between TB1 7 and TB1 8 Display should show 100 ohms 0 1 Press Menu key to return to Analog In Test top level menu FC 21 Flow Computer Sub menus Display 8 2 18 Pulse Pulse input test Submenu Group ENTER Pueri cep START STOP p d md 1 ala BE uet t ENTER amp dam ht Pg i i ht 8 2 19 Analog out test Submenu Group 8 2 20 Excitation out test Submenu Group Bob ET Notes Press Enter key to test the pulse input Use the Up Down arrow keys to select the appropriate trigger level Use the Up Down arrow keys to select the appropriate frequency range To check Pulse input accuracy Use TB1 4 as reference ground input a frequency on TB1 2 The display should show frequency being input Use a frequency counter to verify input Press Menu key to return to Pulse input test top level menu Press Enter to test the analog output To sim
26. Water at 4 C NOTE Density of Liquid 42 Linearization Table General Information Linearization Table Pulse Inputs Linearization Table Analog Inputs Linearization Table Interpolation FC 21 Flow Computer 7 6 Linearization Table 7 6 1 Linearization Table General Information The Linearization Table is used when the flow input device gives a nonlinear input signal The unit uses up to 16 different points as entered by the operator to form a curve for linearizing the input signal Notes 1 A minimum of three points must be set up 2 If 0 is entered for the frequency of any point other than point 1 the Flow Computer assumes there are no more points above the points that preceded them The display will advance to the next setup prompt Extrapolation is taken from the last two nonzero points 3 If the input frequency is above the highest or below the lowest frequency programmed the unit will use the last known point for the K factor in computing the resulting actual flow 4 Frequencies or apparent flows should be entered in ascending order 7 6 2 Linearization Table for Pulse Inputs The linearization table for pulse inputs programming is quite simple when values of frequency and flow are known The Flow Computer asks for 16 different frequencies Freq and 16 corresponding K factors K It then uses this data to determine what the actual flow is for any g
27. a modem Select Yes to have the unit engage in a configuration conversation with the modem on power up Select the desired Modem Auto Answer mode Enter the Call Out Phone Number to be dialed for Call Out Time or Print On Error Alarm Enter the time of day to perform Call Out transmission Sub menus 6 4 20 SERIAL USAGE continued 6 4 21 SETUP DATALOG PRINT Configure Display ENTER i Advance To ENTER i Select list Advance To 35 FC 21 Flow Computer Notes Select Yes to have the unit perform a Call Out transmission upon error alarm condition Enter the number of redials to be performed on call out time if busy or no answer error alarm tries until connected Select Yes to perform hangup if there is inactivity for more than 2 minutes Press Enter to setup the Datalog Print information Select Config to configure the Datalog Print information Select the type of Output Format Enter the desired Page Length If Printer selected above Enter the desired Top Margin If Printer selected above Select Yes to record events to the datalogger only Events will not be sent to the serial port Enter Print Time printer will print at this time every day Enter 00 00 00 to inhibit print time Enter Print Interval Enter 00 00 00 to inhibit print interval S
28. alarms and warning messages Note Alarms may reassert themselves if alarm conditions are still present Select the desired Control Input for setup If Control Input 1 Selected Select Start Reset Start NA Not Assigned If Control Input 2 Selected Select Stop Stop Reset NA Not Assigned If Control Input 3 Selected Select Prn Print Ack acknowledge KeyLk Keylock or NA Not Assigned ACK will acknowledge and clear alarms and warning messages Note Alarms may reassert themselves if alarm conditions are still present ENTER ENTER i ENTER ENTER i ENTER i ENTER i ENTER i 33 FC 21 Flow Computer FC 21 Flow Computer Sub menus 6 4 20 SERIAL USAGE Display ENTER i Tr LL ENTER i ENTER i Continued on Next Page 34 Notes Press Enter to begin setup of the Serial Port Select Serial Hardware type for standard port See SETUP NETWORK CARD for RS485 Modbus option Select the Device ID Select the desired Baud Rate If lt more gt selected Select the desired Parity Set the Handshake Choose end of line termination Only choose lt gt if your external device automatically assigns a line feed for every lt CR gt carriage return Select Yes if the serial port will be used to control
29. menu changes hh mm ss mm dd yy time and date of last e TE change rail Press Menu to get back to audit trail top level menu 8 2 2 Error h Error History Submenu Group Ori Press Enter to view error history NOTE Press Print Key to print Error History Printout will include time date of each errors first occurrence Press Up Down arrow keys to scroll through low error message history Press CLEAR to clear entire error log Press Menu to get back to error history top level menu 8 2 3 Eiee dpm b Print System Setup Submenu Group Setup Press enter key to enter print system setup submenu Press enter to begin printing the system setup This message will display as the data transmission takes place Press Menu to get back to print system setup top level menu 45 FC 21 Flow Computer Sub menus 8 2 4 Keypad test Submenu Group 8 2 5 Display test Submenu Group Display ENTER i d aw ENTER i 46 Notes Press Enter to enter keypad test Press the various keys and the display will show the key that was pressed Press Menu to exit the test Press Menu to get back to Keypad test top level menu Press Enter to enter display test Upon pressing enter the each digit on the display will scroll 0 9 then A Z Press menu to exit the test Pr
30. program and the FC 21 unit are using the same setup information at all times or the data will be inconsistent It is best to upload or download the setup before using this feature To start the viewer first check the boxes of items to view and then click the start button The data will appear in the appropriate sections and will be continuously updated The refresh rate is dependent on the number of items that are being viewed and the baud rate of the connection Data in the List of Values section can be collapsed by clicking the minus sign in front of the group title The data can be expanded by clicking on the plus sign in front of the group title If a group is collapsed and data in the group changes on refresh the group will automatically expand Changing the view items requires stopping the current viewing checking the new selections and then restarting the viewer If communication errors occur while reading data from the FC 21 device the word Error will appear in place of the actual value If the connection to the FC 21 is lost the viewer will time out with a message saying the device is not responding The viewer will attempt to communicate with the FC 21 device matching the device ID set in the communications screen If you are having trouble establishing communication compare settings for the PC and the flow computer Also verify the connections between the PC and flow computer 11 8 Misc Tab This tab has three s
31. the items to be included in each data log as a print list The user can also select when or how often he wishes a data log to be made This is done during the setup of the instrument as either a time of day or as a time interval between logging The system setup and maintenance report lists all the instrument setup parameters and usage for the current instrument configuration In addition the Audit trail information is presented along with a status report listing any observed malfunctions which have not been corrected The user initiates the printing of this report at a designated point in the menu by pressing the print key on the front panel FC 21 Flow Computer Operation of Serial Port with Modems optional The FC 21 RS 232 channel supports a number of operating modes One of these modes is intended to support operation with a modem in remote metering applications FC 21 s role is that of DTE effecting file transfers under common file transfer protocols An external modem is intentionally being used with the FC 21 This permits use with the variety of modem standards worldwide while avoiding the specialized approvals required for equipment that is deemed to fall under the category of telecommunication equipment In the modem mode the FC 21 is assumed to be operating in a remote metering role The FC 21 will support key items in the Hayes Compatible AT Command Set In this role the FC 21 will have the following specia
32. the setup parameter list Selections made at the beginning of the setup affect offerings further down in the lists In the setup mode the flow computer activates the correct setup variables based on the instrument configuration the flow equation and the hardware selections made for the compensation transmitter type the flow transmitter type and meter enhancements linearization options selected All required setup parameters are enabled All setup parameters not required are suppressed A help line prompt is provided for each entry In addition a help message is available which may be accessed by depressing the HELP key In the setup mode selections several parameters are required to be input by the operator since these parameters are blank when the unit is received The user will be prompted for these necessary values for his application A blank parameter will prevent the user from entering the run mode and a suitable warning message will be issued Also note that in the setup mode are parameter selections which have preassigned industry standard values The unit will assume these values unless they are modified by the user Most of the process input variables have available a default or emergency value which must be entered These are the values that the unit assumes when a malfunction is determined to have occurred on the corresponding input It is possible to enter in a nominal constant value for temperature or densi
33. 1 Section 6 12 2 1 specifies that switch or circuit breaker shall be included in the building installation e t shall be in close proximity to the equipment and within easy reach of the OPERATOR It shall be marked as the disconnecting device for the equipment Ensure that the switch or circuit breaker chosen is suitable for the power requirements of the unit 2 2 Mounting Diagrams Standard Mounting Bezel Kit Mounting 21 u Adaptor Gasket EN Mounting Bracket Mounting Bracket Dimensions 5 67 144 o 21494 10 Dotted Line Shows Optional Bezel Kit Dimensions are in inches mm Liquid Volume Liquid Volume Illustration Calculations FC 21 Flow Computer 3 Applications 3 1 Liquid Volume Measurements flowmeter measures the actual volume in liquid line temperature sensor can also be installed to correct for liquid thermal expansion see 3 2 Corrected Volume Calculations For Flowmeters with Pulse Outputs Volume flow is calculated using the flowmeter frequency output and the user entered K Factor For Flowmeters with Analog Transmitters Volume flow is calculated using the measured flowmeter signal and the user entered scale settings Output Results Display Results Flow Rate Resettable Total Non Resettable Total Analog Output Rat
34. 14 5 3 5 RS 232 Serial Port Operation in Rate Total mode 15 5 3 6 RS 485 Serial Port Operation in Rate Total mode 15 5 4 Batcher Operation EH 16 5 4 1 Batcher 16 5 4 2 Password Protection for Batcher mode 17 5 4 3 Relay Operation in Batcher mode 17 5 4 4 Pulse Output in Batcher mode 17 5 4 5 Analog Output in Batcher mode 17 5 4 6 RS 232 Serial Port Operation in Batcher mode 18 5 4 7 RS 485 Serial Port Operation in Batcher mode 18 6 PROGRAMMING 6 1 Front Panel Operation Concept for Program Mode 19 6 2 EZ TE 20 6 3 0 OR EE ETE NE ENN 21 64 Setup SE MENS E 22 641 SELECT EZ SETLIP raa 22 INSTRUMENT TYPE tonne cra 22 6 4 3 SELECT FLOW EQUATION 23 6 4 4 2 23 6 4 5 SETUP INDICATORS Density 23 6 4 6 SETUP INDICATORS Rate 24 6 4 7 SETUP INDICATORS Temperature 24 6 4 8 SETUP FLOW INPUT Pulse Ain amp PS A B 25 6 4 9 SETUP FLOW INPUT Pu
35. 4 Flexible Heaters 4 Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL lt Metering amp Control Instrumentation A Refractometers A Pumps amp Tubing A Air Soil amp Water Monitors Industrial Water amp Wastewater Treatment pH Conductivity amp Dissolved Oxygen Instruments M2571 0803 CONTENTS 1 DESCRIPTION FE og EE EE e 1 1 2 Unit Features RE ERE 1 pec As ee here eg em c c 2 2 INSTALLATION 2 1 General MOUNTING FAmtSasasnmseunepsmmseaumanaj kosoner 6 2 2 MOUNTING Diagrams ks 6 3 APPLICATIONS 3 1 Liquid 7 3 2 Corrected Liquid A c 8 3 S BYA MASS t 9 ee e NE 10 4 WIRING 4 1 Typical Batcher VG 11 4 2 Typical RE Total men 11 4 3 Wiring In Hazardous Areas 12 5 UNIT OPERATION 5 1 Front Panel Operation Concept for Run Mode 13 5 2 General Operation MI 14 5 3 Ratemeter Totalizer Operation 14 5 3 1 Password Protection for Rate Total mode 14 5 3 2 Relay Operation in Rate Total 14 5 3 3 Pulse Output in Rate Total mode 14 5 3 4 Analog Output in Rate Total mode
36. Crystal Display Limit Setpoint An alarm trip point setting which specifies the value or magnitude of a process parameter necessary to activate an alarm indicator or control relay Linear Flowmeter A flow measurement device whose output is proportional to flow Linearization The mathematical correction of a nonlinear device The FC 21 uses a linearization Table which is made up of input output values and makes interpolations of the table to arrive at a linearized measurement LinTbl Abbreviation for Linearization Table Low Flow Cutoff A value set at which any flow measurements read below this value will be ignored Low Pass Filter A low pass filter passes low input frequencies while blocking high frequencies In the FC 21 this is the maximum input count speed to be encountered in an application It is expressed in counts per second Hz Mass Flow 62 FC 21 Flow Computer 12 Glossary Of Terms Continued Mass Flow is inferred by the volumetric flow and density or implied density of a fluid Maximum Batch Preset The Maximum Batch Preset allows the user to program the Maximum Batch value allowed to be entered by the operator If an operator should try to program batch higher then this value the unit will not allow the value to be entered and will prompt the user with an error message saying that the Maximum Batch Preset has been exceeded Maximum Drain Time The unit declares that a batch is done when the flow rate eq
37. Linearization Table for Pulse Inputs 43 7 6 3 Linearization Table for Analog Inputs 43 7 6 4 Linearization Table Interpolation 43 8 TEST SERVICE and MAINTENANCE EEE EE Residuos 44 GRANI eT e ULT m n 45 PANE 12 em 45 8 2 2 Error 45 8 2 3 Print System capa Up 45 dc eciki M TR 46 8 2 5 Display test RE RE TE EN NET 46 8 2 6 Calibrate CHI OMA 47 8 2 7 Calibrate CH1 BOTA 47 EEE M 48 8 2 9 Calibrate CH2 RE 48 8 2 10 Calibrate 49 8 2 11 Calibrate CH1 TOM renee aae 49 8 2 12 Calibrate CH2 DV dende 50 8 213 Calibrate CH2 t 50 8 2 14 Calibrate PIED iai s 50 B 2 15 Calibrate dte 51 8 2 16 Calibrate 2008 Out said 51 8 2 17 ic Evne 51 PEER NE 52 8 2 19 Analog REE c 52 8 2 20 Excitation OUt M Dt 52 8 2 2 Pulse GU ES Lane BUS pese uico 53 8 2 22 Relay FS
38. P Transmitter Transmitter Transmitter Calculations Volume Flow As calculated in section 3 1 Mass Flow Mass Flow volume flow density FC 21 Flow Computer Batching 3 4 Batching Measurements flowmeter measures the actual volume in liquid line temperature sensor can also be installed to correct for liquid thermal expansion see 3 2 Corrected Volume Calculations For Flowmeters with Pulse Outputs Volume flow is calculated using the flowmeter frequency output and the user entered K Factor For Flowmeters with Analog Transmitters Volume flow is calculated using the measured flowmeter signal and the user entered scale settings Corrected Volume is calculated using the flow and temperature inputs as well as the thermal expansion coefficient stored in the flow computer Output Results Display Results Flow Rate Batch Total Non Resettable Total Temperature Density Analog Output Rate Total Temperature or Density Pulse Output Total Relay Outputs Batch Total Rate or Temperature Alarms Applications Batching and monitoring flow and total of any liquid Batching is accomplished via relays and datalogging is available via analog 4 20mA and serial outputs Batching Illustration 1 PN TOTAL RATE 1 TEMP PRINT i CLEAR MENU STOP GRAND SCROLL PRE2 HELP ENTER x 6 7 8 0
39. S 485 Modbus ports Relay 3 and Relay 4 settings may be used to trigger display alarm conditions even if the relays are not supplied Relay 4 Alarm Operation When Relay 4 is set for Alarm Alrm the relay functions as follows The relay will energize when it is NOT in an alarm condition Itis therefore recommended to use the Normally Closed N C relay contacts on Relay 4 when wiring for alarm conditions The Alarm Relay functions in this manner to ensure that the alarm output will signal on power loss or blown fuse Other alarm conditions include PULSEOUT OVERFLOW SOFTWARE ERROR RESET EXTENDED PFI LOCKUP RTD THERM FAILURE 31 FC 21 Flow Computer Sub menus 6 4 16 SETUP CONTROL INPUTS RATE TOTAL 6 4 17 SETUP CONTROL INPUTS BATCH Display m Exons E at i i PP PET LP nd ENTER i Advance To t Fan aiana sia O Finna a i tut ENTER PE PE ENTER i Advance To 32 Notes Press Enter to begin setup of the Control Inputs Select the desired Control Input for setup If Control Input 1 Selected Select Inhibit Total or NA Not Assigned If Control Input 2 Selected Select Reset Total or NA Not Assigned If Control Input 3 Selected Select Prn Print Ack acknowledge KeyLk Keylock or NA Not Assigned ACK will acknowledge and clear
40. Select Setup to enter the instrument setup routine Refer to Page 20 for Details Refer to Page 22 for Details Refer to Pages 22 for Details Refer to Page 23 amp 24 for Details Refer to Page 25 26 amp 27 for Details Refer to Pages 28 for Details Refer to Page 29 for Details Refer to Pages 29 for Details Refer to Page 30 for Details Refer to Page 30 amp 31 for Details Refer to Page 32 for Details Refer to Page 33 for Details Refer to Page 34 for Details Refer to Pages 35 amp 36 for Details Refer to Page 36 for Details Refer to Page 37 for Details FC 21 Flow Computer Sub menus 6 4 1 SELECT EZ SETUP 6 4 2 INSTRUMENT TYPE Rate Tot Batch 6 4 Setup Sub Menus Display STOP START NC ENTER Ir TUBE fe E Batoh Sae ENTER IT pf BOGE p Pot PN START COIN MOTE i Vann 2 BOE Sane Bans Banas Liu i in START T Hy PGP ira ba START UCHR ua a wo i sat uat ENTER T iE il ihk i ENTER 22 Notes Refer to page 20 for EZ Setup routine Press the DOWN stop key to advance to I
41. When the Prewarn value PRE 2 is reached Relay 2 will drop out this is ideal for flow slow down When the Batch amount PRE 1 is reached Relay 1 will drop out and the Batch is complete Several messages will be displayed during normal batch operation i e Batch Fill Batch Stopped The keypad is disabled for the duration of these timed messages approx 2 sec 5 4 1 Batcher Configuration When the unit is programmed for batch mode several batch operation choices are available These choices include Up or Down Counting Maximum Batch Preset Batch Overrun Compensation Auto Batch Restart Time Delay Flow Signal Timeout Maximum Drain Time Slow Start Quantity Start or Reset Start and Stop or Stop Reset Batch Count Mode The Batch Count Mode allows the user to choose whether the unit will batch up to a preset value or batch down from a preset value to zero Maximum Batch Preset The Maximum Batch Preset allows the user to program the Maximum Batch value allowed to be entered by the operator If an operator should try to program a batch higher then this value the unit will not allow the value to be entered and will prompt the user with an error message saying that the Maximum Batch Preset has been exceeded Batch Overrun The Batch Overrun is used for batch applications that have slow responding valves and a consistent batching flowrate When the Batch Overrun is set the unit will compensate for batch overruns by computing an
42. Y3 NO NO NC NC Alarm Relay 2 COM RLY2 COM RLY4 NO LA 115 VAC AC LINE POWER IN AC LINE 11 FC 21 Flow Computer Flow Input Temperature Input 4 20mA Transmitter Temperature Input RTD 4 3 Wiring In Hazardous Areas Examples using MLT787S Barrier MTL4755ac for RTD Flow Input Hazardous Area Safe Area 4 20mA Flow 4 20 Transmitter 24V Out 4 20mA In Common Temperature Input 4 20mA Transmitter Hazardous Area Safe Area 24V Out 4 20mA Temp 4 20 Transmitter Hts 28v i Diode Common 4 20mA In Temperature Input RTD Safe Area Hazardous Area 3 Wire RTD Common RTD Excite RTD Sense RTD Sense 12 How To Use On Line Help How To Use Function Keys How To Clear The Totalizer How To Clear The Grand Total How To Enter Presets How To Create Scroll List How To Use The Print Key How To Use Special Batching Keys How To Use The Menu Key How To Acknowledge Alarms FC 21 Flow Computer 5 UNIT OPERATION 5 1 Front Panel Operation Concept for Run Mode The FC 21 is fully programmable through the front panel Please review the following usage summary before attempting to use the instrument TOTAL RATE TEMP PRINT orean menu START 1 J 2
43. a front panel key depression a remote contact closure or upon completion of a batch In data logging the user defines the items to be included in each data log as a print list The user can also select when or how often he wishes a data log to be made This is done during the setup of the instrument as either a time of day or as a time interval between logging The system setup and maintenance report list all the instrument setup parameters and usage for the current instrument configuration In addition the Audit trail information is presented as well as a status report listing any observed malfunctions which have not been corrected The user initiates the printing of this report at a designated point in the menu by pressing the print key on the front panel The user may specify a next calibration date for periodic maintenance The unit will automatically remind the user that calibration is scheduled during instrument power up and in some printed documents after that date 9 4 FC 21 RS 232 Port Pinout 5 9 9 60990 00000 Ose orso 1 Handshake Line 123456 7 8 9 1011 12 13 14 15 16 17 18 19 20 21 22 23 24 2 Transmit 3 Receive
44. ad Keypad Rating Sealed to Nema 4 Number of keys 16 Enclosure Size See Dimensions Depth behind panel 6 5 including mating connector Type DIN Materials Plastic UL94V 0 Flame retardant Bezel Textured per matt finish Equipment Labels Model safety and user wiring Power Input The factory equipped power option is internally fused An internal line to line filter capacitor is provided for added transient suppression Order Option 1 110VAC 85 to 127 Vrms 50 60 Hz Order Option 2 220VAC 170 to 276 Vrms 50 60 Hz Order Option 3 12VDC 10 5 to 14 VDC Order Option 4 24VDC 18 to 24 VDC Flow Inputs Analog Input Ranges Voltage 0 10 VDC 0 5 VDC 1 5 VDC Current 4 20 mA 0 20 mA Basic Measurement Resolution 16 bit Update Rate 5 updates sec minimum Automatic Fault detection Signal over under range Current Loop Broken Calibration Self Calibration and Auto zero Continuously Extended calibration Learns Zero and Full Scale of each range using special test mode Fault Protection Fast Transient 500 V Protection Capacitive Clamp Reverse Polarity No ill effects Over Voltage Limit 50 VDC Over voltage protection Over Current Protection Internally current limited Protected to 24 VDC Pulse Inputs Number of Flow Inputs one Configurations supported single input with or without quadrature menu selectable Input Impedance 10 nominal Pullup Resistance 10 KO to 5 VDC menu selectable Pull Down Resistance 10
45. and or leaks Check limit value Adjust the limit value if required MODEM NOT PRESENT The setup expects modem usage and a modem is not responding Check setup for proper baud rate parity etc e Check modem connection and cycle power to SUPERtrol Replace modem SOFTWARE ERROR RESET The setup expects modem usage and a modem is not responding Check setup for proper baud rate parity etc e Check modem connection and cycle power to SUPERtrol Replace modem EXTENDED PFI LOCKUP Unit was operated with an input power level lower than safe operating range for an extended period of time Check data in unit Totalizer may have inaccuracies Investigate brownout cause 67 FC 21 Flow Computer 13 3 Error amp Warning Messages Continued 13 3 2 Self Test Alarms Error Warning Message Cause Remedy FLOW INPUT TOO HIGH Analog input signal of the flow input exceeded by more than 3 Sensor overranged Incorrect full scale setting of flowmeter Function error in transmitter or faulty wiring Check analog signal range Check the application conditions Check wiring AUX INPUT TOO HIGH Analog input signal of the Check analog auxiliary input exceeded by signal range more than 3 Check the Sensor overranged application Incorrect full scale setting conditions of transmitter Check wiring Function err
46. any TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail infoGomega dl One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA Engineering Inc accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for patient connected applications
47. averaged overrun value from the last four batches This average is used to internally adjust the batch setpoint to minimize overrun Auto Batch Restart The Auto Batch Restart function allows the user to set an amount of time to automatically restart a batch after the completion of a batch This time can be set from 1 to 99 seconds Time Delay The Time Delay for Auto Batch Restart functions as follows When a batch is completed the next batch will automatically start after the amount of time entered here Flow Signal Timeout The Flow Signal Timeout allows the user to enter a timeout of to 99 seconds If a batch is Filling and zero flow persists for more than the user entered time then the batch will be aborted This prevents over flows due to faulty flow sensors and or wiring Maximum Drain Time The unit declares that a batch is done when the flow rate equals 0 A flow rate may be present long after the Preset Relay de energizes due to slow reacting valves or leaky valves The Maximum Drain Time allows the user to enter an amount of time 0 to 99 seconds to wait before declaring Batch Done After the Preset Batch quantity is reached the unit will declare Batch Done when the flow rate is 0 or the Maximum Drain Time has expired The batch data will then be available for printing and datalogging 16 Password Protection Batch mode Relay Operation Batch mode Pulse Output Batch mode Analog Output Batch mod
48. ccuracy of the system RS 232 Serial Port The FC 21 has a general purpose RS 232 Port which may be used for any one of the following purposes Transaction Printing Data Logging Internal Datalog Dumps Remote Metering by Modem optional Computer Communication Link Configuration by Computer Print System Setup Print Calibration Malfunction History Remote Control Instrument Setup by PC s over Serial Port A Diskette program is provided with the FC 21 that enables the user to rapidly configure the FC 21 using an Personnel Computer Included on the diskette are common instrument applications which may be used as a starting point for your application This permits the user to have an excellent starting point and helps speed the user through the instrument setup Operation of Serial Communication Port with Printers FC 21 s RS 232 channel supports number of operating modes One of these modes is intended to support operation with printer in metering applications requiring transaction printing data logging and or printing of calibration and maintenance reports For transaction printing the user defines the items to be included in the printed document The user can also select what initiates the transaction print generated as part of the setup of the instrument The transaction document may be initiated via a front panel key depression a remote contact closure or upon completion of a batch In data logging the user defines
49. d Does the display show an error message No system or process errors present See section 12 3 for cause and remedy 66 13 3 Error amp Warning Messages 13 3 1 Sensor Process Alarms FC 21 Flow Computer Error Warning Message Cause Remedy TOTALIZER ROLLOVER Displayed when totalizer rolls over Acknowledge Rollover Remedy not required AUX INPUT TOO LOW 4 20 mA Input current at aux input smaller than 3 5 mA Faulty Wiring Transmitter not set to 4 20 mA Transmitter defective Check wiring Check function of sensor RTD OUT OF RANGE Input current at RTD input too low Faulty wiring RTD defective Check wiring Check function of RTD sensor RATE OVERFLOW ERROR Pulse counter overflowed Report error to The totalizer may have lost factory counts Check application conditions Check wiring PULSE OUT OVERFLOW Calculated pulse frequency Adjust pulse value too large Pulse width setting too long Larger pulse scaler needed Adjust pulse width Check process conditions FLOW RATE ALARM LOW FLOW RATE ALARM HIGH TEMP ALARM LOW TEMP ALARM HIGH DENSITY ALARM LOW DENSITY ALARM HIGH Limit value exceeded Check application if necessary Check limit value Adjust the limit value if required BATCH OVERRUN ALARM Batch size exceeded by more than set limit Check valves in System for proper operation
50. desired Low Pass Filter Max Count Speed Select the proper input termination Enter the desired Maximum Sample Window Time 1 99 sec Enter the desired K Factor Type If Avg selected Enter the desired Average K Factor KA for channel A Enter the desired Average K Factor KB for channel B If LinTbl selected Enter the desired frequency K Factor pair for each point in the Linearization Table channel A NOTE Enter 0 for Fre value of any point other than 01 to exit the routine and use the values entered up to that point Enter the desired frequency K Factor pair for each point in the Linearization Table channel B NOTE Enter 0 for Fre value of any point other than 01 to exit the routine and use the values entered up to that point Enter the desired volumetric Low Rate Alarm This will trigger an alarm message if alarm conditions occur The relays are not affected Enter the desired volumetric High Rate Alarm This will trigger an alarm message if alarm conditions occur The relays are not affected Sub menus Display 6 4 10 Fili t E pM Pep SETUP FLOW INPUT Analog im i eS Hd ENTER i mT Through 16 Points i i Sama aia EE Tu i ENTER i m Pr Il ub i I
51. ds Batch Count Mode Batch Count Mode specifies the user preference for count direction The Up selection begins with a value of 0 and counts up until the batch size is reached The Down selection begins with a value equal to the desired batch size and counts down to 0 Batch Overrun The FC 21 offers a batch overrun compensation routine If batch overrun occurs due to slow valve response time the unit will compensate for the overrun amount on the next batch This feature can be disabled if desired Batcher An instrument which controls the dispensing of desired batch amounts Liquid batching systems are usually comprised of a batch controller batcher flowmeter and control valve The batcher opens and closes the valve through the use of relays and measures the amounts of liquid being dispensed via the flowmeter Baud Rate The speed of serial communication transmissions expressed in bits per second C Factor Fluid Expansion Factor A parameter in a flow equation which is used to describe the relationship between density or volume and temperature changes Corrected Volume Flow The equivalently volume at a reference temperature condition which involves the measurement of liquid volume flow using a flow sensor and temperature sensor to compensate for thermal expansion Custody Transfer Weights and Measure metering codes often specify several requirements for instruments and mechanisms to prevent and track changes in the setup of a
52. e FC 21 Flow Computer Slow Start Quantity The Slow Start Quantity is function that allows an amount to be entered for Slow Start up This function requires two stage valve control RLY 1 slow flow will energize for Slow Start and RLY 2 fast flow will energize after the Slow Start Quantity has been delivered This helps reduce turbulence when filling an empty container START RESET START and STOP STOP RESET When configuring the control inputs Control Input1 be set for START or RESET START When set for START the unit will start batching when a signal is applied to Control Input1 or the front panel Start key is pressed A separate Reset signal must be used to clear the previous batch total When set for RESET START the unit will automatically reset then start when a signal is applied to Control Input1 or the front panel Start key is pressed provided that the pervious batch was completed If a previous batch was stopped during a batch cycle the unit will Start from where it was stopped Control Input 2 can be set for STOP or STOP RESET When set for STOP the unit will stop batching when a signal is applied to Control Input 2 or the front panel Stop key is pressed A separate Reset signal must be used to clear the batch total When set for STOP RESET a running batch will stop when a signal is applied to Control Input 2 or the front panel Stop key is pressed If the unit is Stopped or after a completed batch the unit will r
53. e are read as a series of integer register values Alarms are individually read as coils Action routines are initiated by writing to coils 18 How Make Mode Changes How To Navigate Through Sub Menu Groups How To Select Program Choices How To Enter Numeric Values How To Enter Text Characters FC 21 Flow Computer 6 PROGRAMMING 6 1 Front Panel Operation Concept for Program Mode The FC 21 is fully programmable through the front panel Please review the following usage summary before attempting to use the instrument pure pe orean 7 Setup Mode MODE CHANGES Pressing the MENU key will offer selections of RUN SETUP TEST RUN is the normal operating mode for the instrument SETUP offers various sub menus used for instrument setup TEST offers various sub menus for Test Calibration and System Start up Submenu GROUP NAVIGATION Use the UP and DOWN arrow keys to navigate up and down through the Sub Menu groups when in the SETUP or TEST mode Press the ENTER key to enter desired setup or test Sub Menu group SELECTION OF ITEM During setup the unit will often offer multiple choices for given topic The topic prompt appears on the top line of the display The choices are shown on the lower line of the display To select an item press the key beneath the desired choice The selected choice will blink Press the ENTER key to accept the selected choice NUMERIC ENTRY
54. e features are assignable by this method The user can assign the standard RS 232 Serial Port for data logging transaction printing or for connection to a modem for remote meter reading 1 2 Unit Features The FC 21 Flow Computer offers the following features Custody Transfer with Audit Trail Multiple Instrument Functions Menu Selectable Hardware amp Software Features TwoLine LCD or VFD Display Foreign Language Options solated Outputs Standard Versatile RS 232 Port Standard DIN Enclosure with Two Piece Connector Optional Networking Cards Advanced Batching Features FC 21 Flow Computer 1 3 Specifications Specifications Environmental Indoor Use Altitude up to 2000m Operating Temperature 0 to 50 C 20 C to 55 C optional Storage Temperature 40 C to 85 C Maximum Relative Humidity 80 for temperatures up to 31 C decreasing linearly to 50 RH at 40 C Mains supply voltage fluctuations not to exceed 10 of the nominal voltage Transient overvoltage according to INSTALLATION CATEGORY II see UL 3101 1 Annex J POLLUTION DEGREE 2 in accordance with IEC 664 see 3 7 3 Materials UL CSA VDE approved Approvals Approved Light Industrial UL File E192404 CSA Pending Display Type 2 lines of 20 characters Types Backlit LCD or VFD ordering options Character Size 0 3 nominal User selectable label descriptors and units of measure Keypad Keypad Type Membrane Keyp
55. e or Total Pulse Output Total Relay Outputs Rate or Total Alarms Applications The Flow Computer can monitor actual volume flow and total of any liquid Flow alarms are provided via relays and datalogging is available via analog 4 20mA and serial outputs TOTAL RATE PRE 1 TEMP PRINT START 1 2 3 jl 4 5 CLEAR MENU wA 6 7 8 2 ON Flowmeter Pulse Input Average K Factor input frequency time scale factor Volume Flow K Factor Analog Input Linear Volume Flow 96 input Full Scale Flow FC 21 Flow Computer Corrected 3 2 Corrected Liquid Volume Liquid Volume Measurements flowmeter measures the actual volume in liquid line temperature sensor is installed to correct for liquid thermal expansion Calculations Corrected Volume is calculated using the flow and temperature inputs as well as the thermal expansion coefficient stored in the flow computer Use the SET FLUID PROPERTIES submenu to define reference temperature and density values for standard conditions Output Results Display Results Flow Rate Resettable Total Non Resettable Total Temperature Density Analog Output Rate Total Temperature or Density Pulse Output Total Relay Outputs Rate Total or Temperature Alarms Applications Monitoring corrected volume flow and total of any liquid Flow alarms are provided via relays and da
56. e user will then be prompted for Several specialized flow equations are listed that are not intended for the standard unit but to be offered to appropriate or as special order items These are designated by a T Note concerning Fluid Information The user will be prompted for Fluid Information during the setup of the instrument The Factory will be preparing application information for several common fluid types 7 3 Flow Equations Input Flow Computation Linear or External SQRT Input Flow input span flow FS flow low scale flow low scale Orifice Input Flow V96 input span flow FS flow low scale flow low scale Input Flow Computation General Case Tf 96 input span temp FS Temp low scale temp low scale RTD Case Tf f measured input resistance Input Density Computation Temperature Transmitter density reference density 1 Therm Exp Coef Tf Tref Density Transmitter density input span density FS density low scale density low scale 38 FC 21 Flow Computer 7 3 Flow Equations Continued Flow Equations Input Viscosity Computation B _ __ Deg Fs 15957 T centistokes Absolute Density Where centistokes cP kg l Uncompensated Flow Computation Pulse Input Average K Factor input frequency time scale factor Volume Flow K Factor Pulse Input Linear Table input frequency time scale factor
57. ear Grand Total Enter Menu Edit Preset 1 PRE 1 Key Edit Preset 2 PRE 2 Key The Supervisor password should be reserved for supervisors The Supervisor password will allow access to restricted areas of the Setup and Test menus 5 3 2 Relay Operation in Rate Total mode Up to four relays are available two standard for alarm outputs The relays can be assigned to trip according to rate total temperature density readings or general system alarms The relays can be programmed for low or high alarms Preset 1 RLY1 and Preset 2 RLY2 are easily accessible by pressing the PRE 1 or PRE 2 key on the front panel Preset 3 and Preset 4 are accessible only through the setup menu 5 3 3 Pulse Output in Rate Total mode The isolated pulse output open collector is menu assignable to Volume Total Corrected Volume Total or Mass Total The pulse output duration can be set for 10mS 50 Hz max or 100mS 5 Hz max A pulse output scale factor pulse value can be set to scale the pulse output The pulse output is ideal for connecting to remote totalizers or other devices such as a PLC See section 1 3 for electrical specifications 5 3 4 Analog Output in Rate Total mode The analog output is menu assignable to correspond to the Volume Rate Corrected Volume Rate Mass Rate Temperature Density Volume Total Corrected Volume Total or Mass Total The analog output is ideal for trend tracking using strip chart recorders or other devices 14
58. ections Tools Actions and Options The tools section contains various system administration activities such as creating moditying the initial sign on screen or calibration service test etc Create Sign on Create Print Header Calibration Service Test The Actions section is used to send commands to the FC 21 unit Reset Totalizers Reset Alarms The Options section has the following selections Linearization PC Communication Additional capabilities may be provided in the future NOTE Future options appear as disabled buttons on the screen 60 FC 21 Flow Computer 12 Glossary Of Terms Acknowledge amp Clear Alarms Acknowledge is used to clear alarm relays and remove any visual alarm messages from the display In the run mode press the ENTER key or activate CONTROL INPUT 3 if set for to momentarily clear alarms and alarm messages Alarms will reassert themselves if alarm conditions are still present Analog Output The analog signal 4 20mA that is generated by the FC 21 It can correspond to the Rate Total Temperature or Density This output is used primarily for transmission of process information to remote systems Audit Trail The audit trail is used to track the number of changes made to the units setup program Auto Batch Restart The Auto Batch Restart function allows the user to set an amount of time to automatically restart a batch after the completion of a batch This time can be set from 1 to 99 secon
59. ed Volume Total or Mass Total The pulse output duration can be set for 10mS 50 Hz max or 100mS 5 Hz max A pulse output scale factor pulse value can be set to scale the pulse output The pulse output is ideal for connecting to remote totalizers or other devices such as a PLC See section 1 3 for electrical specifications 5 4 5 Analog Output in Batcher mode The analog output is menu assignable to correspond to the Volume Rate Corrected Volume Rate Mass Rate Temperature Density Volume Total Corrected Volume Total or Mass Total The analog output is ideal for trend tracking using strip chart recorders or other devices 17 FC 21 Flow Computer RS 232 Serial Port 5 4 6 RS 232 Serial Port Operation in Batcher mode Batch mode The RS 232 serial port can be used for programming using the Setup Disk or for communicating to printers and computers in the Operating Mode Run Mode PC Communications The Setup Disk also allows the user to query the unit for operating status such as Flow Rate Flow Total Temperature Density Presets etc Operation of RS 232 Serial Port with Printers Transaction Printing For transaction printing the user defines the items to be included in the printed document see section 6 3 20 SET DATA OUTPUT Select list The transaction document can be initiated by pressing the PRINT key by remote contact closure or print at end of batch Data Logging In data logging the user defines the it
60. elect YES to enable Print Key Select NO to disable Print Key Batch mode only Select Yes to print at end of batch FC 21 Flow Computer Sub menus 6 4 22 SETUP DATALOG PRINT Select list List Items TOTAL RATE 6 4 23 ADMINISTRATIVE SETUP Display ENTER i i si O OT 1 PO MARO ENTER i Advance To ENTER i PEP STEED 9 1 1 ff ENTER i Ei EE Er Pon ENTER i 4i ENTER Advance 36 Notes Press enter to begin Setup Datalog Print routine Press enter when Select list is selected to setup print list Use Up and Down arrow keys to view list status Press the Corresponding function key to the items that you wish to add or remove from the list Items marked with Yes will be added to the list items marked with No will be removed from the list The Select Print List Information display shows the current possible Datalog size Press Enter to begin Administrative Setup Enter Operator Password Factory Set to 0 Enter Supervisor Password Factory Set to 2000 This display is used to show the software version of the installed software This display is used to show the product order code model number This display is used to show the unit s serial number This display is used to show the sensor s serial number
61. ems to be included in each data log see section 6 3 20 SET PRINTER OUTPUT Select list user can also select when time of day or how often print interval the data log is to be made see section 6 3 19 SET PRINTER OUTPUT Configure System Setup and Maintenance Report The system setup and maintenance report lists all of the instrument setup parameters and usage for the current instrument configuration The audit trail information and a status report is also printed This report is initiated in the Test menu see section 8 2 3 PRINT SYSTEM SETUP RS 485 Serial Port 5 4 7 RS 485 Serial Port optional Batch mode RS 485 Port Description The optional RS 485 card utilizes Modbus RTU protocol to access a variety of process parameters and totalizers Batches Relays can be controlled remotely via Modbus In addition action routines can be executed For further information contact factory and request RS 485 Protocol manual Operation of Serial Communication Port with PC The flow computers RS 485 channel supports a number of Modbus RTU commands Modbus RTU drivers are available from third party sources for a variety of Man Machine Interface software for IBM compatible PC s The user reads and writes information from to the RS 485 using the Modbus RTU commands The FC 21 then responds to these information and command requests Process variables and totalizers are read in register pairs in floating point format Time and dat
62. eset when a signal is applied to Control Input 2 or the front panel Stop key is pressed NOTE Applying a voltage level to Control Input 2 will inhibit all Start inputs in either mode 5 4 2 Password Protection for Batcher Mode After an Operator and or Supervisor Password is entered in the setup mode see section 6 3 SETUP PASSWORD submenu the unit will be locked The unit will prompt the user for the password when trying to perform the following functions Clear Grand Total Enter Menu The Supervisor password should be reserved for supervisors The Supervisor password will allow access to restricted areas of the Setup and Test menus The passwords are factory set as follows Operator 0 Supervisor 2000 5 4 3 Relay Operation in Batcher mode Up to four relays are available two standard for alarm outputs Preset 1 RLY1 is reserved for batch amount Preset 2 RLY2 is reserved for prewarn see section 5 4 Batcher Operation for Relay 1 amp Relay 2 functions Preset 1 RLY1 and Preset 2 RLY2 are easily accessible by pressing the PRE 1 or PRE 2 key on the front panel Preset 3 and Preset 4 are accessible only through the setup menu Relays 3 and 4 can be assigned to trip according to rate total temperature overrun or alarm When Rate is selected the relays can be programmed for low or high alarms 5 4 4 Pulse Output in Batcher mode The isolated pulse output open collector is menu assignable to Volume Total Correct
63. ess Menu to get back to Display test top level menu FC 21 Flow Computer ALL UNITS ARE CALIBRATED AT THE FACTORY PRIOR TO SHIPMENT CAUTION This unit must be calibrated using precision and calibrated equipment Equipment needed is as follows Frequency Generator Digital Multimeter Precision Current Voltage Source Oscilloscope Frequency Counter Sub menus Display Calibration Cal Submenu Group 8 2 6 Calibrate CH1 Submenu Group Calibrate CH1 20 Submenu Group Advance to num mme sfe emn Ern 47 Notes Press Enter to begin the calibration routine Please note the caution above Connect Current Source TB1 3 TB1 4 Input OmA and press Enter This message is displayed during calibration This message is displayed when the 0mA calibration is finished The display will automatically return to the Calibrate CH1 OmA submenu Press the Down arrow key to advance to the CH1 20mA calibration Connect Current Source TB1 3 TB1 4 Input 20mA and press Enter This message is displayed during calibration This message is displayed when the 20mA calibration is finished The display will automatically return to the Calibrate CH1 20mA submenu Press the Down arrow key to advance to the CH2 0mA calibration FC 21 Flow Computer Sub menus 8 2 8 Calibrate CH2 0mA Submenu Group Displa
64. he prior written consent of OMEGA ENGINEERING INC OMEGAnet Online Service Internet e mail www omega com info omega com USA ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance USA and Canada Mexico Benelux Czech Republic France Germany Austria United Kingdom ISO 9002 Certified Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN TELEX 996404 EASYLINK 62968934 CABLE OMEGA En Espafiol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales omegaeng nl Rud arm dy 1868 733 01 Karvin 8 TEL 420 0 69 6311899 FAX 420 0 69 6311114 Toll Free 0800 1 66342 e mail czech omega com 9 rue Denis Papin 78190 Trappes TEL 33 0 130 621 400 FAX 33 0 130 699 120 Toll Free in France 0800 4 06342 e mail sales omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germ
65. ibration This message is displayed when the RTD calibration is finished The display will automatically return to the Calibrate 100 ohm RTD top level menu Press the Down arrow key to advance to the 4mA out calibration Sub menus 8 2 15 Calibrate 4mA Out Submenu Group 8 2 16 Calibrate 20mA Out Submenu Group 8 2 17 Analog In Test Submenu Group Display ENTER Bcc STOP to i ENTER i Loo FC 21 Flow Computer Notes Connect ammeter to TB1 15 1 16 Press enter To trim OMA output Press CLEAR to enable editing and enter a small negative number i e 0 100 to force a display reading then clear and enter small quantity measured on your meter The display will return to Calibrate OMA out Press the down arrow key to advance to Cal 20mA out or repeat above if necessary Connect ammeter to TB1 15 1 16 Press enter To trim 20mA output Press CLEAR to enable editing and enter the current reading that is on the ammeter display Press enter The display will automatically return to the Calibrate 20 out submenu Calibration is complete ite Press the Menu key to go back to Calibrate 51 top level menu Press enter to test the analog inputs To check voltage input accuracy Use TB1 4 as Reference Ground input 0 10 Volts to
66. inputs Use TB1 12 as reference input a DC signal to TB1 9 TB1 10 and or TB1 11 The Display will show ON when input is active OFF when inactive Press Menu key to return to control input test top level menu FC 21 Flow Computer Sub menus 8 2 24 Battery Voltage test Submenu Group 8 2 25 Data logger utility Submenu Group Display ENTER i t 54 Notes Press Enter key to view the battery voltage The display will show the battery voltage Replace battery at 2 5 VDC or below Press Menu key to return to battery voltage test top level menu Press Enter to use data logger utility The displays shows the number of Data Logs Press the Down arrow key to advance to PRT print or CLR clear Press PRINT key to output data logger logs to printer Press CLEAR key to clear the data logger contents Press Menu key to return to Data logger utility top level menu FC 21 Flow Computer 8 3 Internal Fuse Replacement Instructions 17 D f 8 9 Reassemble the case and install the four machine screws which join the two sections of Make sure you follow proper E S D Precautions All persons performing this replacement must follow proper grounding procedures Turn the power to the unit off Disconnect the two piece connector rear terminal block leaving all connections in place Remove the
67. iven input frequency Usually the necessary data is provided with the flowmeter 7 6 3 Linearization Table for Analog Inputs The Linearization Table for Analog inputs programming is similar to the Pulse input setup The Flow Computer asks for 16 different flow rates apparent flow and 16 corresponding Correction Factors then uses this data to determine what the Actual flow is for any given apparent input signal Again a minimum of three points must be set up Correction factor Actual Flow Apparent Input Flow The same rules that applied for the Digital setup apply for the Analog setup as well The Flow Computer prompts you for the Apparent input signal APR and a correction factor CFr to multiply it by to yield true actual flow 7 6 4 Linearization Table Interpolation The Linearization Table routine uses the entered data to determine the K factor for any given input frequency or input flow signal This is done by taking the closest data points above and below the input signal then using those points to extrapolate the K factor correction factor then calculating the uncompensated flow from the data Below are the formulas Parameters Determine closest point above input signal signal X K factor correction factor KA Determine closest point below input signal 5 KN signal Y K factor correction factor KB 5 Let input signal unknown K factor correction factor KN Y
68. k on the tab The previous tab window will be hidden as the new tab window is brought to the foreground 11 5 File Tab The File Tab has three sections Any of the options on this tab can also be accessed from the File submenu The Template Section provides for opening and saving templates The Save and Save As buttons provide the standard Windows functionality for dealing with files The Load button is used to open existing templates There are two additional menu items available only from the File menu Create new file and Templates The Create new file option allows for creating custom templates using the existing template in memory as the starting point Assign new name for this template The template will be saved under this new name The Template option will bring up a list of predefined templates that can be loaded into the program These predefined templates are useful as a starting point when defining custom templates A typical scenario using the setup program would be the following Open up a predefined template from the supplied list e Choose Save As to save this to a new file name Proceed to customize the template by making any changes that are needed e Save the template to disk if you want to reuse this template Download the template to an attached unit The Communications with FC 21 Section allows the user to upload a template file from the unit download the program s current template to the unit or Compa
69. l abilities 0 Monitor the modem status as a task of the system 1 Instruct the modem to answer an incoming call ATA 2 Respond to the calling modem at a compatible baud rate and protocol 3 Perform error checking in conjunction with the modem 4 Monitor the status of the carrier 5 Terminate the telephone connection in event the connection is lost In addition the FC 21 will be capable of initiating a call to a designed telephone number in the event of a metering malfunction FC 21 Flow Computer General Mounting Hints Mounting Procedure 2 Installation 2 1 General Mounting Hints The FC 21 Flow Computer should be located in an area with a clean dry atmosphere which is relatively free of shock and vibration The unit is installed in 5 43 138mm wide by 2 68 68mm high panel cutout see Mounting Dimensions To mount the Flow Computer proceed as follows a Prepare the panel opening b Slide the unit through the panel cutout until the it touches the panel c Install the screws provided in the mounting bracket and slip the bracket over the rear of the case until it snaps in place d Tighten the screws firmly to attach the bezel to the panel in Ib of torque must be applied and the bezel must be parallel to the panel Termination Connectors Minimum Wire Gauge 22 AWG Maximum Wire Gauge 14 AWG Voltage current limits are limited by unit specifications Permanently Connected Equipment UL 3101
70. l one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGA s control Components which wear are not warranted including but not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the par
71. lse Quadrature Qx1 or Qx2 26 6 4 10 SETUP FLOW INPUT Analog erem panna ae 27 pA JT SETUP AUX INPUT det 28 6 4 12 SET FLUID PROPERTIES 2 2 29 6 4 13 SETUP PULSE OUTPUT Liss 29 6 4 14 SETUP ANALOG OUTPUT 30 6 4 15 SETUP RELAYS Led 30 6 4 16 SETUP CONTROL INPUTS RATE TOTAL 32 6 4 17 SETUP CONTROL INPUTS BATCH 32 6 4 18 SETUP REALTIME CLOCK Time 33 6 4 19 SETUP REALTIME CLOCK Date 33 m PD SERIAL ms 34 6 4 21 SET DATALOG PRINT Configure 35 6 4 22 SET DATALOG PRINT Select list 36 6 4 23 ADMINISTRATIVE SETUP ierit nre tt enn mentes 36 6 4 24 SETUP NETWORK CARD 37 99579 08 21 03 CONTENTS 7 PRINCIPLE OF OPERATION General Mec 38 7 2 Orifice Flowmeter Considerations 2 uuemsemntmnmtisvsevennvdiuskmeteter 38 Fe RER EE 38 7 4 Calculating the Expansion 41 7 5 Computation of Viscosity Coef and 42 yASE T uncus pros 43 7 6 1 Linearization Table General Information 43 7 6 2
72. mperature which is calculated from the base density as K K a 2 188 7 Pb Pb where the base density is in kilograms per cubic meter The empirically derived constants K and K for the five product groups are given in Table 2 23 The density of the product at flowing temperature is then calculated as p p exp AT 1 0 8a AT 2 189 where AT T 60 The specific gravity at flowing or measured temperature is then TABLE 2 23 Constants and for Five Product Groups Product group Crude oils and JP4 341 0957 0 0 Jet fuels kerosenes solvents 330 3010 0 0 Gasolines and naphthenes 192 4571 0 2438 Lubricating oils 144 0427 0 1895 Diesel oil heating oils fuel oils 103 8720 0 2701 Note Pentanes and hydrocarbons lower in the hydrocarbon chain are not covered by this data News Release 1987 added 1 4 The above information was obtained from Flow Measurement Engineering Handbook 3rd Edition by Richard W Miller 40 Calculating Expansion Factor Expansion Factor Equations FC 21 Flow Computer 7 4 Calculating the Expansion Factor The liquid density is a function of the flowing temperature for many fluids This unit solves an equation which represents this physical property of the fluid The information which the unit uses to describe the fluid is entered by the user in the following variables Reference Temperature Reference Density Expansion Fac
73. n instrument which may be used in the commercial sale of goods The FC 21 tracks changes via the Audit Trail Data Logger The capturing of information for later use and the mechanism for specifying the conditions where a capture should be made DC Output Excitation Voltage An on board DC power supply used to power peripheral sensors The FC 21 offers excitation voltages of 5VDC 12VDC or 24VDC when powered by AC voltage Default Value The value to be used by the instrument if a sensor failure or out of ranch signal is detected Expansion Factor See C Factor Flow Alarm A visual indication that the volumetric flowrate is above or below the flow alarm setpoint specified by the user 61 FC 21 Flow Computer 12 Glossary Of Terms Continued Flow Signal Timeout The Flow Signal Timeout allows the user to enter timeout of 0 to 99 seconds If batch is Filling and zero flow persists for more than the user entered time then the batch will be aborted This prevents over flows due to faulty flow sensors and or wiring Flow Equation flow control expression or algorithm describing mathematical equation to be solved by flow computer in the desired application Follow Alarm Alarm relays which are non latching and whose output state is based solely on the comparison of the current process value and the alarm setpoint trip point Function Key key on push button panel or keyboard whose function is described by
74. nstrument Type Press the UP start key to advance to Administrative Setup Press ENTER to enter Instrument Type sub menus Press ENTER when Rate Total is flashing to configure the instrument as a Ratemeter Totalizer If Rate Tot selected advance to Select Flow Equation Press ENTER to enter Instrument Type sub menus Press ENTER when Batch is flashing to configure the instrument as a Batcher Select UP to Reset to 0 and count up to preset Select DOWN to reset to Preset and count down to O Enter the maximum allowable Batch Preset The operator will not be able to enter a batch preset larger than this value Select ON to set the unit to operate using a Batch Overrun Compensation routine Select OFF to inhibit Batch Overrun Compensation routine See Section 5 4 Select On to enable the Auto Batch Restart This will automatically restart the unit at the end of each batch run Select Off if this is not desirable Enter Time Delay for Auto Batch Restart When a batch is completed the next batch will start after the amount of time entered here Enter a timeout of to 99 seconds If a batch is Filling and zero flow persists for more than this time the batch will be aborted Enter time 0 99 sec for Max Drain Time After batch quantity is reached Batch Done is declared when the flow rate is 0 orthe Maximum Drain Time has expired Enter a quantity for a Slow Start up RLY 2 slow flow will energize fo
75. on 500 V fast transient Capacitive Clamp Input Impedance 100 Control Activation Positive Edge or Pos Level based on product definition Excitation Voltage 110 220 VAC Powered Units Menu Selectable 5 12 or 24 VDC Q 100mA 24 VDC Powered Units Menu Selectable 5 or 12 VDC 100mA 12 VDC Powered Units 5 VDC Q 100mA Relay Outputs The relay outputs are menu assignable to Individually for each relay Low Rate Alarm Hi Rate Alarm Prewarn Alarm Preset Alarm Pulse Output pulse options or General purpose warning security Number of relays 2 4 optional Contact Style Form C contacts Contact Ratings 250 VAC 5 amps 30 VDC 5 amps Fast Transient Threshold 1000 V Serial Communication The serial port can be used for printing datalogging modem connection and communication with a computer RS 232 Device ID 01 99 Baud Rates 300 600 1200 2400 4800 9600 19200 Parity None Odd Even Handshaking None Software Hardware Print Setup Configurable print list and formatting RS 485 Device ID 01 247 Baud Rates 300 600 1200 2400 4800 9600 19200 Parity None Odd Even Protocol Modbus RTU Half Duplex Analog Output The analog output is menu assignable to correspond to the Uncompensated Volume Rate Corrected Volume Rate Mass Rate Temperature Density Volume Total Corrected Volume Total or Mass Total Type Isolated Current Sourcing Isolated 500 V Available Ranges Resolution 12 bi
76. or in transmitter or faulty wiring FLOW INPUT TOO LOW Analog input signal of the Check wiring flow input fell below the low Check calibration of scale range by more than flowmeter 396 of full scale value Check function of Flowmeter not set to 4 20 flowmeter mA Function error in transmitter or faulty wiring BATTERY LOW WARNING Battery voltage too low Replace Battery Consult Factory for service information A to D NOT CONVERTING Fault in analog digital converter Unit may self correct Press ENTER to acknowledge amp clear alarm f error reasserts factory service is required TIME CLOCK ERROR The correct time date is no longer shown Re enter time and date e f error occurs again contact factory CAL CHECKSUM ERROR Calibration constants have been corrupted Report error to factory SETUP CHECKSUM ERROR The units setup has been corrupted Report error to factory 68 FC 21 Flow Computer APPENDIX MHOML3N anya 1937135 3009 43080 NOISH3A LINN HOLVHIdO SWALI dl AJA TIVAH3LINI AINO ISMANHd FTEVNI 1 INIHd
77. or the Analog Output Enter desired Analog Output Low Scale Value NOTE Units label will correspond with output usage type selected Enter desired Analog Output Full Scale Value Enter the desired Analog Output Damping Constant mL H ENTER i Advance To 6 4 15 SETUP RELAYS Relay 1 amp Relay 2 Select the desired Relay for setup Relays 3 amp 4 Optional NOTE In Batch mode Relay 1 is reserved for Preset Relay 2 is reserved for Prewarn If Relay 1 or Relay 2 Selected Select Rate Total or NA If Rate selected enter desired relay activation delay value Select the desired Relay Activation Low Relay activates when reading is below setpoint High Relay activates when reading is above setpoint If Total Selected Enter desired Relay Duration Enter the desired Setpoint The Setpoint can be edited in run mode using the PRE 1 key PRE 2 key for Relay 2 If Rate selected Enter desired Relay Hysteresis ENTER i Advance 30 Sub menus 6 4 15 Continued SETUP RELAYS Relay 3 amp Relay 4 NOTE Settings for Relays 3 amp 4 may be entered even if relays are not supplied The settings will still trigger display alarms FC 21 Flow Computer Notes Select the desired Relay for setup Relays 3 amp 4 Optional If Relay 3 Selected Choose Rate Total Aux
78. ow Start Quantity has been delivered This helps reduce turbulence when filling an empty container Sqrt Abbreviation for Square Root Extraction Used for flow elements using differential pressure measurements Stop Reset Control Input In a batching system a single operator activation of the STOP key or Control Input 2 will stop the batch process then reset the total Time Constant A damping factor for an averaging filter for the analog output see also Rate Averaging Filter Totalizer Any device which accumulates and displays a total count UVC Abbreviation for Universal Viscosity Curve presentation of the combined flowrate viscosity calibration for turbine flowmeter VFD Abbreviation for Vacuum Fluorescent Display Visc Coef Abbreviation for Viscosity Coefficient One or more coefficients in an equation used to describe the viscosity as function of temperature for fluid Volume Flow The measurement of volumetric flow 64 FC 21 Flow Computer 13 Diagnosis and Troubleshooting 13 1 Response of FC 21 on Error or Alarm Error and warning indications which occur during operation are indicated in the RUN mode alternately with the measured values The FC 21 Flow Computer has three types of error TYPE OF ERROR DESCRIPTION Sensor Process Alarms Errors detected due to sensor failure or process alarm conditions Self Test Errors Errors detected during self test System Alarms Errors detected due to s
79. play ENTER i pepe i fete inet ENTER i HES mene pre i een i m Fai iid ES ENTER oo L ENTER Banen ba ENTER i ESE COP iii ENTER i m LITIZRP ENTER i Advance To 28 Notes Press ENTER to begin setup of the Auxiliary Input Select Temperature to set the Auxiliary Input for Temperature inputs Choose Temperature Signal Type Advance to Aux Default if RTD selected If Voltage selected Choose desired Voltage Range Skip if RTD If Current selected Choose desired Current Range Skip if RTD Enter the low temperature scale corresponding to the low temperature signal Skip if RTD Enter the high temperature scale corresponding to the high temperature signal Skip if RTD Enter the Default Temperature The unit will use this value if the temperature input fails Enter the Low setpoint for the Temperature Alarm Enter the High setpoint for the Temperature Alarm Choose the Density Extraction method to be used Sub menus Display 6 4 12 SET FLUID PROPERTIES ___ Advance To 6 4 13 OUTPUT SETUP PULSE OUTPUT
80. r Slow Start and RLY 1 fast flow will energize after the Slow Start Quantity has been delivered Sub menus Display 6 4 3 Ot SELECT FLOW EQUATION Advance 6 4 4 SETUP INDICATORS Total 6 4 5 SETUP INDICATORS Density ENTER DIY PBMIIG 5 8 PHP ns P t PE ENTER CET PI 5 t E Fana Banan ana Dd ENTER Advance To Rate 23 FC 21 Flow Computer Notes Press ENTER to enter Select Flow Equation submenus Press ENTER when desired flow equation is flashing Press ENTER to begin setup of the Indicators Press ENTER when Total is flashing to configure the Totalizer Indicators Enter the desired Total Descriptor Enter the desired Volume Units Label for the Totalizer Select the desired Total Decimal Place 0 3 decimal places allowed Press ENTER when Dens is flashing to configure the Density Indicators Enter the desired Density Descriptor Enter the desired Mass Units Label for Density Select the desired Density Decimal Place 0 3 decimal places allowed FC 21 Flow Computer Sub menus 6 4 6 SETUP INDICATORS Rate 6 4 7 SETUP INDICATORS Temperature Display ENTER i Advance 7 Temperature B
81. re the program s current template with the unit The Print report Section allows the user to 1 Configure the current Windows printer through the Select Printer option 2 Print a Maintenance Report through the PC s printer using the Print Maintenance option 3 Print the current template through the PC s printer using Print Setup option 11 6 Setup Tab The Setup tab is where majority of the FC 21 instrument setup modifications are done The Setup tab is divided into five sections System Section Parameters Display Indicators Input Section Flow Fluid Compensations Control Inputs Output Section Pulse Currents Relay Section Relays Other Settings Section Administration Communication Printing NOTE Many setup items are enabled or disabled depending on previous setup selections It is important to work your way through the above list in the order shown Be sure to verify your selections when you are through programming to insure that no settings were changed automatically 59 FC 21 Flow Computer 11 7 View Tab The View Tab screen allows for viewing selected group items on the PC in similar format as shown on the unit display Data from the following groups can be viewed in the List of Values section Process Parameters i e rate temperature Totalizers i e total grand total The setup software assumes the current setup has been uploaded from the flow computer into the PC It is important that the setup
82. rement The setup can be further customized using the setup menus Quick Update This feature is used to disable the rate averaging filter when a significant change in the flow rate occurs The user can enter the percent of change needed to be detected to disable averaging feature This is especially useful during start up and shutdown of flow Rate Averaging Filter The rate averaging filter is used to stabilize fluctuating rate displays Higher settings provide more averaging for a more stable display Derived from the equation OLD DATA x Avg Filter NEW DATA Avg Filter 1 Ratemeter Any device used to display the speed of a process The ratemeter in the FC 21 displays flow rate Ref Dens Abbreviation for Reference Density This is the fluid density at reference temperature Ref Temp Abbreviation for Reference Temperature This represents the base or reference condition to which corrected flow will be computed Reset Start Control Input In a batching system a single operator activation of the START key or Control Input 1 will reset the total then start the batch process Single Pulse The Single Pulse setting is used for flowmeters with single pulse outputs Slow Start Quantity The Slow Start Quantity is a function that allows an amount to be entered for a Slow Start up This function requires two stage valve control RLY 1 slow flow will energize for Slow Start and RLY 2 fast flow will energize after the Sl
83. ril LEE LEE do 27 21 Computer Notes Press ENTER to begin setup of the Flow Input Select the desired Excitation Voltage Press ENTER when Analog is flashing to configure the flow input for Analog signals Choose Analog Signal Type If Voltage selected Choose desired Voltage Range If Current selected Choose desired Current Range Select the desired Linearization Type If LinTbl selected Enter the desired Apparent Input Flow APR Correction Factor CFr pair for each point in the Linearization Table NOTE Enter 0 for APR value of any point other than APRO1 to exit the routine and use the values entered up to that point Enter the low flowrate corresponding to the low analog signal Enter the High flowrate corresponding to the High analog signal Enter the desired Low Flow Cutoff Enter the desired volumetric Low Rate Alarm This will trigger an alarm message if alarm conditions occur The relays are not affected Enter the desired volumetric High Rate Alarm This will trigger an alarm message if alarm conditions occur The relays are not affected FC 21 Flow Computer Sub menus 6 4 11 SETUP AUX INPUT NOTE When Density Dens Horus is selected The menu prompts will be very similar to the Tem perature prompts The menus will prompt the user for density values and density units Dis
84. ription The optional RS 485 card utilizes Modbus RTU protocol to access a variety of process parameters and totalizers The Relays can be controlled via Modbus addition action routines be executed For further information contact factory and request RS 485 Protocol manual Operation of Serial Communication Port with PC The flow computer s RS 485 channel supports number of Modbus RTU commands Modbus RTU drivers are available from third party sources for a variety of Man Machine Interface software for IBM compatible PC s The user reads and writes information from to the RS 485 using the Modbus RTU commands The FC 21 then responds to these information and command requests Process variables and totalizers are read in register pairs in floating point format Time and date are read as series of integer register values Alarms are individually read as coils Action routines are initiated by writing to coils 15 FC 21 Flow Computer Batcher Configuration 5 4 Batcher Operation The Batcher mode is used primarily to control batches The main difference between the Batch mode and Rate Total mode is the relay operation The Batch mode allows the operator to START the unit via the front panel or remote input Once started the relays RLY1 amp RLY2 will energize and send power to a flow control device i e solenoid valve or pump The flow sensor will send signal to the unit and total accumulation will begin
85. s the clearing of the Grand Total Process Parameters Any sensor information which has been scaled to engineering units including Flow Temperature and Density Pulldown Input Termination The termination of an input at which the input is pulled down to ground through a resistor Inputs that are terminated by this method need to be driven high with a positive voltage pulse Pullup Input Termination The termination of an input at which the input is pulled up to a positive voltage through a resistor Inputs that are terminated by this method need to be pulled low with a sinking current or contact to ground Pulse Output The pulse output of the FC 21 is available for remote accumulation of the total or sent to peripheral devices such as a PLC The output can be scaled using the Pulse Output Scaling Constant Quad Abbreviation for Quadrature Quadrature signals are used for direction control Two flowmeter signals are output with a 90 phase shift The counter counts UP when channel A precedes channel B and counts DOWN when Channel A lags Channel B Quick Setup A utility that provides for rapid configuration of an instrument The FC 21 quick setup provides the 63 FC 21 Flow Computer 12 Glossary Of Terms Continued following 1 Prompts the user for only critical information 2 Automatically sets specifications to common uses After following the Quick Setup procedure the unit will be operational to perform the basic measu
86. sitive help available for each screen accessible by pressing the F1 key 11 1 System Requirements IBM PC or compatible with 386 or higher class microprocessor 4 MB RAM 3 MB free disk space VGA or higher color monitor at 640 x 480 Microsoft Windows 3 1 or 3 11 or Windows 95 Communication Port RS 232 RS 232 Cable 11 2 Cable and Wiring Requirements The serial communication port on your PC is either a 25 pin or 9 pin connector No cabling is supplied with the setup software A cable must be purchased separately or made by the user is recommended to purchase a modem cable which matches the available communication port on you PC and a 9 pin male connection for the FC 21 serial port 11 3 Installation for Windows 3 1 or 3 11 The Setup Software includes an installation program which copies the software to your hard drive Insert Setup Disk 1 in a floppy drive In the Program Manager click File and then select Run NOTE For Windows 95 Click the Start button select Run and proceed as follows Type the floppy drive letter followed by a colon and a backslash and the word setup For Example a setup Follow the instructions on your screen 58 FC 21 Flow Computer 11 4 Using the Flow Computer Setup Software The setup software window consists of several menu Tabs Each tab is organized into groups containing various configuration and or monitoring functions To view the tab windows simply clic
87. t Time and date are read as series of integer register values Alarms are individually read as coils Action routines are initiated by writing to coils 10 4 FC 21 RS 485 Port Pinout 5 4 3 2 1 EN 9 7 6 4 TX RX O oce O Oo poo 1 Ground 2 Ground 5 TX RX 6 Do Not Use 7 Terminating Resistor 180 9 8 TX RX 9 TX RX 1234567 8 9 1011 12 13 14 15 16 17 18 19 20 21 22 23 24 57 FC 21 Flow Computer 11 Flow Computer Setup Software The FC 21 setup program provides for configuring monitoring and controlling a FC 21 unit Sample applications are stored in disk files The setup program calls these Templates You can store the setup from the program s memory to either the FC 21 Downloading the file or to a disk file Saving the file for later usage Similarly you can load the setup in program memory from either a disk file Opening a file or from the FC 21 unit Up oading a file The program can monitor outputs from the unit while it is running The program can reset alarms and totalizers For assistance there are mini helps at the bottom of each screen in the program There is also context sen
88. t Accuracy 0 05 FS at 20 Degrees C Update Rate 1 update sec minimum Temperature Drift Less than 200 ppm C Maximum Load 1000 ohms at nominal line voltage Compliance Effect Less than 05 Span 60 Hz rejection 40 dB minimum EMI No effect at 3 V M Calibration Operator assisted Learn Mode Averaging User entry of DSP Averaging constant to cause an smooth control action 4 20 0 20 mA Isolated Pulse output The isolated pulse output is menu assignable to Uncompensated Volume Total Compensated Volume Total or Mass Total Isolation 500 V Pulse Output Form Open Collector Maximum On Current 125 mA Maximum Off Voltage 30 VDC Saturation Voltage 1 0 VDC Maximum Off Current 0 1 mA Pulse Duration User selectable Pulse output buffer 8 bit Pulse Rate Averaging Standard Fault Protection Reverse polarity Shunt Diode Transient Protection 500 VDC Capacitive Clamp FC 21 Flow Computer Operating Mode The Flow Computer can be thought of as making series of measurements of flow temperature density sensors and then performing calculations to arrive at result s which is then updated periodically on the display The analog output the pulse output and the alarm relays are also updated The cycle then repeats itself Step 1 Update the measurements of input signals Raw Input Measurements are made at each input using equations based on input signal type selected The system notes the out of range inpu
89. t signal as an alarm condition Step 2 Compute the Flowing Fluid Parameters The temperature viscosity and density equations are computed as needed based on the flow equation and input usage selected by the user Step 3 Compute the Volumetric Flow Uncompensated flow is the term given to the flow in volume units The value is computed based on the flowmeter input type selected and augmented by any performance enhancing linearization that has been specified by the user Step 4 Compute the Corrected Volume Flow at Reference Conditions In the case of a corrected liquid volume flow calculation the corrected volume flow is computed as required by the selected compensation equation Step 5 Compute the Mass Flow All required information is now available to compute the mass flow rate as volume flow times density Step 6 Check Flow Alarms The flow alarm functions have been assigned to one of the above flow rates during the setup of the instrument A comparison is now made by comparing the current flow rates against the specified hi and low limits Step 7 Compute the Analog Output This designated flow rate value is now used to compute the analog output Step 8 Compute the Flow Totals by Summation A flow total increment is computed for each flow rate This increment is computed by multiplying the respective flow rate by a time base scaler and then summing The totalizer format also includes provisions for total rollover
90. talogging is available via analog 4 20mA and serial outputs Corrected Liquid Volume Illustration ies VN 2 2 KA S Flowmeter Temperature Transmitter Calculations Volume Flow As calculated in section 3 1 Corrected Volume Flow Temp Transmitter Corrected Volume Flow vol flow 1 Therm Exp Coef Tf Tref FC 21 Flow Computer Liquid Mass 3 3 Liquid Mass Measurements Actual volume is measured by the flow element DP transmitter Flowmeter Temperature is measured by the temperature transmitter density transmitter can be used for direct density measurements Calculations The density and mass flow are calculated using the reference density and the thermal expansion coefficient of the liquid see SET FLUID PROPERTIES submenu Output Results Display Results Flow Rate Resettable Total Non Resettable Total Temperature Density Analog Output Rate Total Temperature or Density Pulse Output Total Relay Outputs Rate Total or Temperature Alarms Applications Monitoring mass flow and total of any liquid Flow alarms are provided via relays and datalogging is available via analog 4 20mA and serial outputs Liquid Mass Illustration P e Z C Orifice Plate Temp Dens Flowmeter Temp Dens with D
91. the key label used to perform an instrument function or special routine Handshake means of controlling the information flow between two pieces of equipment to prevent the sending device from transmitting information at a rate faster than what can be accepted by the receiver Hysteresis The relay hysteresis is dead band setting which allows the relay to remain energized for given amount below the setpoint This is used to prevent relay chatter when the process value is near the setpoint value Example If the Preset is set at 100 and the hysteresis is set at 10 the relay will energize when the rate temp or dens reaches 100 the relay will remain energized until the reading falls below 90 Input Termination Input signal lines on digital inputs often require pullup or pulldown resistor configurations to operate properly with different sensor configurations The FC 21 contains such resistors and may be enabled via the setup menu Inhibit Totalizer Inhibit Total is Control Input I setting that is used to stop the totalization If enabled voltage level on control input 1 will inhibit the total as long as the voltage is present This feature is useful during meter proving and in applications that provide a sensor to signal the flow computer when fluid is present K Factor A scaling factor derived from the pulses produced by a flowmeter output expressed in pulses per unit i e pulses gallon LCD Abbreviation for Liquid
92. tor This information is available for many fluids in one or more of the following forms Fluid Specific Gravity vs Temp Table Specific Gravity vs Temp Graph Fluid Density vs Temp Table Fluid Density vs Temp Graph Begin by obtaining one of the fluid properties for the fluid you are using from available manufacturers information or Engineering Handbooks In some cases this information is listed on the Material Safety Data Sheet for the fluid Two temperature specific gravity pairs will be required to compute the temperature coefficient The reference temperature is simply chosen by the user Common reference temperatures are 60 F or 15 However for cryogenic fluids the normal boiling point may also be used In some cases the fluid data may list properties at 100 F this temperature may also be used as the reference temperature The reference temperature should be chosen so that it is in the application temperature range i e application temperature range 10 to 120 F reference temperature of 60 F chosen Enter the reference temperature you have chosen at this point The reference specific gravity corresponds to the fluid SPECIFIC GRAVITY at the reference temperature chosen You may convert the fluid density information to specific gravity if it is in units other than specific gravity Use EQ1 1 Spec Grav Density of Fluid Density of Water Given the reference temperature reference specific gravity second temp
93. trument Type Select the appropriate rate time base Enter the desired rate decimal location 0 3 decimal places allowed Enter the desired totalizer units label Enter the desired totalizer decimal location 0 3 decimal places allowed Enter the desired K Factor Type If Average selected Enter the desired Average K Factor If LinTbl or UVC selected Enter the desired frequency K Factor pair for each point in the Linearization Table Enter a frequency of 0 for any point other than FreO1 to exit Linearization Table setup Enter the desired full scale setting for the analog output Return to Run Mode 20 Menus 6 3 1 Top Level Setup Menu 6 3 2 Submenu Groups p START 6 3 Setup Menus Display STOP START STOP START FLOU STOP START STOP START D STOP START STOP START STOP START STOP START ra IMPUTS STOP STAR STOP START STOP START Li STOP START SETUP DATALOG lt PRINT STOP START STOP START 21 FC 21 Flow Computer Notes
94. ts manufactured by it will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department
95. ty or analog flow inputs by placing the desired nominal value into both the lo and hi values This is also a convenience when performing bench top tests without simulators Maintenance Mode The Maintenance Mode of the FC 21 is the Test and Calibration Mode for the device This mode provides a number of specialized utilities required for factory calibration instrument checkout on start up and periodic calibration documentation A password is required to gain access to this specialized mode of operation Normally quality calibration and maintenance personnel will find this mode of operation very useful It is also useful for factory testing Many of these tests may be used during start up of a new system Inputs signals may be read and output signals may be exercised to verify the electrical interconnects before the entire system is put on line The following action items may be performed in the Maintenance Mode Print Calibration Maintenance Report Examine Audit Trail Perform Keypad Checkout Perform Display Checkout Perform Pulse Input Checkout Perform Pulse Output Checkout Perform Control Input Checkout Perform Relay Output Checkout Perform Analog Input Checkout Perform Analog Output Checkout Calibrate Analog Inputs using the Learn Feature Calibrate Analog Output using the Learn Feature Battery Check Note that a calibration of the analog input output will advance the audit trail counters since it effects the a
96. uals 0 A flow rate may be present long after the Preset Relay de energizes due to slow reacting valves or leaky valves The Maximum Drain Time allows the user to enter an amount of time 0 to 99 seconds to wait before declaring Batch Done After the Preset Batch quantity is reached the unit will declare Batch Done when the flow rate is 0 or the Maximum Drain Time has expired The batch data will then be available for printing and datalogging Max Window The max window time sets the maximum sample time 1 to 99 sec for the ratemeter Modem Init Master The Modem Init Master menu allows the user to select whether the unit will engage in a configuration conversation with the modem on power up or impart no setup information to the modem and use it as is For most users it is recommended to choose yes for Modem Init Master Orifice Plate Flowmeter A class of flow measurement devices where the measured signal differential pressure has a square law relationship to flow Parity A method for detecting errors in transmissions of serial communications data Preset A set point used to trigger the relay outputs of the FC 21 Print Interval The print interval allows the FC 21 to transmit information to the serial port at selectable time intervals Private Code An operator password code which authorizes changes to the setup of the instrument but blocks access to the Service Calibration Test mode The private code also block
97. ulate analog output Connect an ammeter to TB1 15 TB1 16 Press the key under the desired setting to move the asterisk The unit should output the selected current Press Menu key to return to Analog out test top level menu Press Enter to test the excitation output To test the excitation output Connect a voltmeter to TB1 1 TB1 4 Press the key under the desired setting to move the asterisk The unit should output the selected voltage Press Menu key to return to Excitation out test top level menu Sub menus 8 2 21 Pulse out test Submenu Group 8 2 22 Relay test Submenu Group 8 2 23 Control input test Submenu Group Display ENTER 53 FC 21 Computer Notes Press Enter key to test the pulse output To simulate a frequency on the pulse output Connect a frequency counter to TB1 13 TB1 14 Press the key under the desired setting to move the asterisk The unit should output the selected frequency Press Menu key to return to Pulse out test top level menu Press Enter to test the relays To manually control the relay outputs Press the key under the desired relay to toggle the relays On Off Use an ohmmeter to check the relay contacts Press Menu key to return to Relay Test top level menu Press Enter to test the control inputs To check the control
98. unit from the panel Remove the four machine screws see fig 1 which hold the two sections of the case together The rear section of the case should detach from the rest of the case It may be necessary two cut the wiring label along the joint where the two sections connect With the rear section of the case removed the fuse will be exposed located near the rear terminal AC connection Locate the Fuse F1 see fig 2 and unplug the fuse from its socket Insert the new fuse into the socket Insure that the pins are fully inserted and straight the case 10 Reinstall the unit into the panel 11 Reconnect the rear terminal block 12 Turn the unit back on Fuse Specifications 110 VAC Power 160mA 250V TD Wickman 19372 030 k or equivalent 220 VAC Power 80mA 250V TD Wickman 19372 026 k or equivalent 12 24 VDC Power 800mA 250V Wickman 19374 046 k or equivalent Screws ER E AT a 4 places e 5 5 16 ii g CA Tee i PSP rev
99. y 8 2 9 Calibrate CH2 20mA 1 Submenu Group 48 Notes To Calibrate Connect Current Source TB1 8 TB1 4 Input OmA and press Enter This message is displayed during calibration This message is displayed when the 0mA calibration is finished The display will automatically return to the Calibrate CH2 OmA submenu Press the Down arrow key to advance to the CH2 20mA calibration To Calibrate Connect Current Source TB1 8 TB1 4 Input 20mA and press Enter This message is displayed during calibration This message is displayed when the 20mA calibration is finished The display will automatically return to the Calibrate CH2 20mA submenu Press the Down arrow key to advance to the CH1 calibration Sub menus 8 2 10 Calibrate CH1 OV Submenu Group 8 2 11 Calibrate CH1 10V Submenu Group Display STOP Advance to 49 FC 21 Flow Computer Notes To Calibrate Connect Voltage Source TB1 2 TB1 4 Input OV and press Enter This message is displayed during calibration This message is displayed when the OV calibration is finished The display will automatically return to the Calibrate CH1 OV submenu Press the Down arrow key to advance to the CH1 10V calibration To Calibrate Connect Voltage Source TB1 2 TB1 4 Input 10
100. ys and functions are password protected Enter the password to gain access The passwords are factory set as follows Operator 0 Supervisor 2000 13 FC 21 Flow Computer General Operation Rate Total Operation Password Protection Rate Total mode Relay Operation Rate Total mode Pulse Output Rate Total mode Analog Output Rate Total mode 5 2 General Operation The unit can display Rate Total Grand Total Temperature Density Presets and Time of Day The Temperature and or Density can be displayed even if you are using the Volumetric Flow Equation a Temperature or Density sensor must be installed The unit can perform Mass or Corrected Volume equations using temperature or density sensor these equations can be computed without Temp Dens sensors by using user defined default values The unit can be programmed to perform Ratemeter Totalizer or Batching functions see section 6 3 SELECT INSTRUMENT Submenu 5 3 Ratemeter Totalizer Operation The Ratemeter Totalizer mode is used primarily to monitor flowrate and accumulated total The relays can be used to trigger flow total temperature or density alarms 5 3 1 Password Protection for Rate Total mode After an Operator and or Supervisor Password is entered in the setup mode see section 6 3 SETUP PASSWORD submenu the unit will be locked The unit will prompt the user for the password when trying to perform the following functions Clear Total Cl
101. ystem failure Some alarms are self clearing Other alarms require the user to acknowledge and clear the alarm Press the ENTER button to acknowledged and clear alarms Alarms may reassert themselves if the alarm condition is still present NOTE A historical error alarm log is available in the Test Mode The following descriptions suggest possible causes and corrective actions for each alarm message 65 FC 21 Flow Computer 13 2 Diagnosis Flow Chart and Troubleshooting All instruments undergo various stages of quality control during pro duction The last of these stages is complete calibration carried out on state of the art calibration rigs summary of possible causes is given below to help you identify faults Is there an input power Check the connections supply voltage across according to the circuit Terminals 23 and 24 diagrams Check junction box fuses Check Replace internal fuse If fuse is OK Factory Service Required Is the Display Backlight Visible The display may not be visible with ambient temperatures below 10 Allow the instrument to warm up Contact factory if necessary Is there a black bar Check line voltage across the display If voltage is OK Factory Service Required No Are the Display Characters Visible Does the display Check line voltage alternate between blank If voltage is OK and sign on message Factory Service Require

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