Instruction manual

Power-Supply and Sensor Wiring

continued

RFT9739 Field-Mount Transmitter Instruction Manual

Output Wiring Startup TroubleshootingBefore You Begin Getting Started Mounting

Power-Supply and

Sensor Wiring

4.3 Sensor wiring

The instructions in this section explain how to connect a fully prepared

Micro Motion flowmeter cable to the RFT9739 and a sensor. The sensor

can be a Micro Motion ELITE, F-Series, Model D, DT, or DL sensor.

• The procedure for preparing Micro Motion flowmeter cable and cable

glands is described in the instructions that are shipped with the cable.

• Install cable and wiring to meet local code requirements.

• Use Micro Motion color-coded cable.

• Total length of cable from the sensor to the transmitter must not exceed

1000 feet (300 meters).

Cable connections to

sensor and transmitter

WARNING

Operating the transmitter without covers in place

exposes electrical hazards that can cause property

damage, injury, or death.

Make sure the safety barrier partition, electronics module

cover, and housing cover are securely in place before

operating the transmitter.

CAUTION

Failure to seal sensor junction box and transmitter

housing could cause a short circuit, which would

result in measurement error or flowmeter failure.

To avoid risk of condensation or excessive moisture in the

junction box or transmitter housing:

• Seal all conduit openings.

• Install drip legs in conduit or cable.

• Ensure integrity of gaskets and O-rings, and fully tighten

all housing covers.

CAUTION

Improper installation of cable or conduit could cause

inaccurate measurements or flowmeter failure.

Keep cable away from devices such as transformers,

motors, and power lines, which produce large magnetic

fields.