Omega FMA 4000 Instrukcja Użytkownika

www.omega.com e-mail: [email protected]’s GuideFMA 4000 Digital Mass Flow MetersShop online at

3. PRINCIPLE OF OPERATIONThe stream of gas entering the Mass Flow transducer is split by shunting a smallportion of the flow through a capillary stain

74. SPECIFICATIONSFLOW MEDIUM: Please note that FMA 4000 Mass Flow Meters are designed to work onlywith clean gases. Never try to measure flow rates o

CAUTION: Omega makes no expressed or implied guarantees of corrosion resistance of mass flow meters as pertains to different flow media reacting withc

95. OPERATING INSTRUCTIONS5.1 Preparation and Warm UpIt is assumed that the Mass Flow Meter has been correctly installed and thor-oughly leak tested a

10During initial powering of the FMA 4000 transducer, the flow output signal will beindicating a higher than usual output. This is an indication that

115.3 FMA 4000 Parameters Settings5.3.1 Engineering Units SettingsThe FMA 4000 Mass Flow Meter is capable of displaying flow rate with 23 differentE

5.3.2 Gas Table SettingsThe FMA 4000 Mass Flow Meter is capable of storing calibration data for up to 10different gases. Digital interface commands a

Mode Enable/Disable - Allows the user to Enable/Disable Flow Alarm.Low Alarm - The value of the monitored Flow in % F.S. below which is considered a

The current Flow Alarm settings and status are available via digital interface (seeparagraph 8.3 ASCII Command Set “FMA 4000 SOFTWARE INTERFACE COM-MA

15The available K Factor settings are:• Disabled (K = 1).• Internal Index The index [0-35] from internal K factor table (see APPENDIX II).• User D

Servicing North America:USA: One Omega Drive, Box 4047ISO 9001 Certified Stamford CT 06907-0047Tel: (203) 359-1660 FAX: (203) 359-7700e-mail: info@ o

16Figure b-6: FMA 4000 Screen in the beginning of Auto Zero procedure.The Auto Zero procedure normally takes 1 - 2 minutes during which time the DPZer

175.3.8 Self Diagnostic AlarmFMA 4000 series Mass Flow Meters are equipped with a self-diagnostic alarmwhich is available via multicolor LED, digital

18Analog output signals of 0-5 Vdc and 4-20 mA are attained at the appropriate pins ofthe 15-pin “D” connector (see Figure b-1) on the side of the FMA

196.2 Flow Path CleaningBefore attempting any disassembly of the unit for cleaning, try inspecting the flowpaths by looking into the inlet and outlet

207. CALIBRATION PROCEDURES7.1 Flow CalibrationOmega®Engineerings' Flow Calibration Laboratory offers professional calibrationsupport for Mass Fl

217.2 Gas Flow Calibration of FMA 4000 Mass Flow MeterFMA 4000 Mass Flow Meters may be field recalibrated/checked for the samerange they were origina

22Gas flow calibration parameters are separately stored in the Gas Dependent por-tion of the EEPROM memory for each of 10 calibration tables. See APPE

If a simple communication terminal is used for communication with the FMA 4000,then “MW” (Memory Write) command from the software interface commands s

24The FMA 4000 analog output calibration involves calculation and storing of theoffset and span variables in the EEPROM for each available output. The

25Enter Backdoor mode by typing: !11,MW,1000,1[CR]Unit will respond with: !11,BackDoorEnabled: YDisable DAC update by typing: !11,WRITE,4,D[CR]Unit wi

TABLE OF CONTENTS1. UNPACKING THE FMA 4000 MASS FLOW METER...1.1 Inspect Package for External Damage...

26Enable DAC update by typing: !11,WRITE,4,N[CR]Unit will respond with: !11,DisableUpdate: NClose BackDoor access by typing: !11,MW,1000,0[CR]Unit wil

27The global address can be used to change RS485 address for a particular device withunknown address:1. Make sure only one device (which address must

288.3 ASCII Commands SetOMEGA FMA 4000 SOFTWARE INTERFACE COMMANDSCOMMANDNAMEDESCRIPTIONNo.COMMAND SYNTAXCommand Argument 1Argument 2 Argument 3Argum

29COMMANDNAMEDESCRIPTIONNo.COMMAND SYNTAXCommandArgument 1Argument 2Argument 3Argument 4 ResponseAuto ZeroStarts /reads the status of the auto zero fe

30COMMANDNAMEDESCRIPTIONNo.COMMAND SYNTAXCommandArgument 1Argument 2 Argument 3 Argument 4 ResponseRelay ActionAssigns action of the two SPDT relays.

31COMMANDNAMEDESCRIPTIONNo.COMMAND SYNTAXCommand Argument 1Argument 2 Argument 3Argument 4 ResponseK FactorsApplies a gas correction factor to the cur

32COMMANDNAMEDESCRIPTIONNo.COMMAND SYNTAXCommand Argument 1 Argument 2 Argument 3 Argument 4 ResponseUnitsSet the units of measure for gas flow and to

33UART Error Codes:1 - Not Supported Command or Back Door is not enabled.2 - Wrong # of Arguments.3 - Address is Out of Range (MR or MW commands).4 -

349. TROUBLESHOOTING9.1 Common ConditionsYour FMA 4000 Digital Mass Flow Meter was thoroughly checked at numerousquality control points during and aft

9.2 Troubleshooting Guide35NO. INDICATION LIKELY REASON SOLUTION1 No zero reading after 15 min. warm up time and no flow condition.Embedded temperatur

7. CALIBRATION PROCEDURES...7.1 Flow Calibration...

36NO. INDICATION LIKELY REASON SOLUTION8 Gas flows through the FMA 4000, but LCD Display reading and the output voltage 0-5 Vdc signal do not respond

9.3 Technical AssistanceOMEGA7 Engineering will provide technical assistance over the phone to quali-fied repair personnel. Please call our Flow Depar

38INDEX NAME DATA TYPE NOTES0BlankEEPROM char[10] Do not modify. Table Revision [PROTECTED]1SerialNumber char[20] Serial Number [PROTECTED]2ModelNum

39INDEX NAME DATA TYPE NOTES35Klag [5] float DRC Lag Constant [Do Not Alter]36Kgain[0] float Gain for DRC Lag Constant [Do Not Alter]37Kgain[1] float

40INDEX NAME DATA TYPE NOTES100GasIdentifer char[20] Name of Gas [If not calibrated = “Uncalibrated”]101FullScaleFlow float Full Scale Range in l/min1

41INDEX ACTUAL GASK FactorRelative to N2Cp[Cal/g]DENSITY[g/I]0 Acetylene C2H2 0.5829 .4036 1.1621 Air 1.000 0.24 1.2932 Allene (Propadiene) C3H4 0.43

42APPENDIX III GAS FACTOR TABLE (“K FACTORS”)CAUTION: K-Factors at best are only an approximation. K factors should not be used in applications tha

43ACTUAL GASK FACTORRelative to N2Cp[Cal/g]Density[g/I]Deuterium D21.00 1.722 1.799Diborane B2H6.4357 .508 1.235Dibromodifluoromethane CBr2F2.1947 .15

44ACTUAL GASK FACTORRelative to N2Cp[Cal/g]Density[g/I]Hydrogen Bromide HBr1.000 .0861 3.610Hydrogen Chloride HCl1.000 .1912 1.627Hydrogen Cyanide HCN

45ACTUAL GASK FACTORRelative to N2Cp[Cal/g]Density[g/I]Phosphorous Oxychloride POCl3.36 .1324 6.843Phosphorous Pentafluoride PH5.3021 .1610 5.620Phosp

11. UNPACKING THE FMA 4000 MASS FLOW METER1.1 Inspect Package for External DamageYour FMA 4000 Mass Flow Meter was carefully packed in a sturdy cardbo

46APPENDIX IV COMPONENT DIAGRAMTOP COMPONENT SIDEAug. 09, 2007

47BOTTOM COMPONENT SIDEAug 09, 2007

APPENDIX VDIMENSIONAL DRAWINGSFMA 4000 WITHOUT READOUT48

FMA 4000 WITH READOUT OPTION49

WARRANTY/DISCLAIMEROMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 13 months from date of

Where Do I Find Everything I Need for Process Measurement and Control? OMEGA… Of Course!Shop online at www.omega.comTEMPERATUREThermocouple, RTD &

2CAUTION: FMA 4000 TRANSDUCERS SHOULD NOT BE USED FOR MONITORING OXYGEN GAS UNLESS SPECIFICALLY CLEANED AND PREPARED FOR SUCH APPLICATION. For more i

32.2 Electrical ConnectionsFMA 4000 is supplied with a 15 pin “D” connector. Pin diagram is presented inFigure b-1.2.2.1 Power Supply ConnectionsThe

2.2.3 Communication Parameters and ConnectionsThe digital interface operates via RS485 (optional RS232) and provides access toapplicable internal dat

5PIN FMA 4000 FUNCTION1 Common, Signal Ground For Pin 2 (4-20 mA return).2 0-5 Vdc or 4-20mA Flow Signal Output. 3 Relay No. 2 - Normally Open Contac