Output Wiring
continued
RFT9739 Rack-Mount Transmitter Instruction Manual
51
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5.7
Pressure transmitter
wiring
The RFT9739 accepts pressure input signals from a pressure
transmitter for pressure compensation.
• If a pressure transmitter connected to a host controller measures
gauge pressure at the sensor input, the RFT9739 can compensate for
the pressure effect on the sensor. Pressure compensation is required
only for the sensor models listed in Table 5-3.
• Instructions for wiring the RFT9739 to a pressure transmitter are
provided below. Instructions for configuring the RFT9739 for pressure
compensation are provided in the following instruction manuals and in
the AMS on-line help:
- Using the HART Communicator with Micro Motion Transmitters
- Using ProLink Software with Micro Motion Transmitters
- Using Modbus Protocol with Micro Motion Transmitters
The RFT9739 pressure input terminals (CN2-Z6 and CN2-Z20) are
intended for use with a pressure transmitter, and should not be
connected to a control system.
If the RFT9739 is configured for pressure compensation, flowmeter
measurement will not be compensated for pressure during a pressure
input failure. If the signal from the pressure transmitter fails, both of the
following occur:
• The RFT9739 continues to operate in non-fault mode.
• A "Pressure Input Failure" message appears on the transmitter display,
a HART Communicator with the latest memory module, ProLink
software version 2.4 or higher, or AMS software.
Table 5-3.
Sensors affected by
pressure
CAUTION
Failure to comply with requirements for
intrinsic safety if the sensor is installed in a hazardous
area could result in an explosion.
Pressure transmitter wiring is not intrinsically safe.
Keep pressure transmitter wiring separated from
intrinsically safe sensor wiring, power-supply wiring, and
any other intrinsically safe wiring.
ELITE
F-Series
Model D and DL
CMF025 (density only)
CMF050 (density only)
CMF100
CMF200
CMF300
CMF400
F025 (density only)
F050
F100
F200
D300 standard model
D300 Tefzel
®
model
D600
DL100
DL200
Summary of Contents for Fisher Rosemount RFT9739
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