Micro Motion RFT9709 Manual de instrucciones Pagina 17

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RFT9709 Transmitter Instruction Manual
9
Wiring
continued
Wiring Startup TroubleshootingBefore You Begin Mounting
2.3 Sensor wiring
The instructions in this section explain how to connect a fully prepared
Micro Motion flowmeter cable to the RFT9709 and a sensor. The sensor
can be a Model D, DL, DT, ELITE
®
, or BASIS
®
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 RFT9709 must not exceed
1000 feet (300 meters).
WARNING
Failure to comply with requirements for intrinsic
safety in a hazardous area could result in an
explosion.
Sensor wiring is intrinsically safe.
Keep intrinsically safe sensor wiring separated from
power-supply wiring and output wiring.
For intrinsically safe sensor installations, use this
document with Micro Motion UL installation instructions.
CAUTION
Improper installation of cable or conduit could cause
inaccurate measurements or flowmeter failure.
Keep sensor cable away from devices such as
transformers, motors, and power lines, which produce
large magnetic fields.
09wire.fm Page 9 Monday, March 1, 1999 4:31 PM
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