Instruction manual

44 RFT9739 Field-Mount Transmitter Instruction Manual
Output Wiring
continued
5.7 Pressure transmitter
wiring
The RFT9739 accepts 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 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 (P and S) 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 is shown on the transmitter display
(if it has one), 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
WARNING
Failure to comply with requirements for intrinsic
safety in a hazardous area could result in an
explosion.
Pressure transmitter wiring is not intrinsically safe.
• Keep pressure transmitter wiring separated from power-
supply wiring, intrinsically safe sensor wiring, and any
other intrinsically safe wiring.
• Make sure the safety barrier partition is in place before
operating the transmitter.
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