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3
2.2
Electrical Connections
FMA 4000 is supplied with a 15 pin “D” connector. Pin diagram is presented in
Figure b-1.
2.2.1 Power Supply Connections
The power supply requirements for FMA 4000 transducers are: 11 to 26 Vdc,
(unipolar power supply)
DC Power (+) --------------- pin 7 of the 15 pin “D” connector
DC Power (-)
--------------- pin 5 of the 15 pin “D” connector
CAUTION: Do not apply power voltage above 26Vdc.
Doing so will cause FMA 4000 damage or faulty operation.
2.2.2 Output Signals Connections
CAUTION: When connecting the load to the output terminals, do not exceed
the rated values shown in the specifications. Failure to do so might cause
damage to this device. Be sure to check if the wiring and the polarity of the
power supply is correct before turning the power ON. Wiring error may cause
damage or faulty operation.
FMA 4000 Mass Flow Meters are equipped with either calibrated 0-5 or calibrat-
ed 4-20 mA output signals (jumper selectable). This linear output signal repre-
sents 0-100% of the flow meter’s full scale range.
WARNING: The 4-20 mA current loop output is self-powered (non-isolated).
Do NOT connect an external voltage source to the output signals.
Flow 0-5 VDC or 4-20 mA output signal connection:
Plus (+) -------------------------- pin 2 of the 15 pin “D” connector
Minus (-) -------------------------- pin 1 of the 15 pin “D” connector
To eliminate the possibility of noise interference, use a separate cable entry for
the DC power and signal lines.
Содержание FMA 4000
Страница 1: ...www omega com e mail info omega com User sGuide FMA 4000 Digital Mass Flow Meters Shop online at...
Страница 50: ...46 APPENDIX IV COMPONENT DIAGRAM TOP COMPONENT SIDE Aug 09 2007...
Страница 51: ...47 BOTTOM COMPONENT SIDE Aug 09 2007...
Страница 52: ...APPENDIX V DIMENSIONAL DRAWINGS FMA 4000 WITHOUT READOUT 48...
Страница 53: ...FMA 4000 WITH READOUT OPTION 49...