12
RFT9709 Transmitter Instruction Manual
Wiring
continued
Cable connections to
sensor and RFT9709
Wiring connections from the sensor to the RFT9709 are made at the
RFT9709 terminals indicated in Figure 2-5. Instructions for wiring the
sensor and transmitter are provided below and on the following pages.
The wiring procedure is the same for the sensor and RFT9709. Refer to
the wiring diagrams on pages 14 through 16, and follow these steps:
1. Insert the stripped ends of the individual wires into the terminal
blocks. No bare wires should remain exposed.
• At the sensor, connect wiring inside the sensor junction box.
• At the RFT9709, connect wiring to the intrinsically safe terminals for
sensor wiring, indicated in Figure 2-5. The flowmeter cable outer
jacket must extend under the RFT9709 wiring terminals access
cover.
• For easier connection of wiring, terminal blocks can be unplugged
from the RFT9709. Two captive screws hold each terminal block in
place.
2. Locate the wires by color as indicated in Table 2-1.
3. Tighten the screws to hold the wires in place.
4. Tightly close all housing covers.
• Tighten the sensor junction-box cover. Tighten all four cover screws.
• Close the RFT9709 sensor-wiring access cover and tighten the
screw that holds it in place.
• If the RFT9709 is installed in a NEMA enclosure, tightly close all
NEMA housing covers.
CAUTION
Exposing the RFT9709 to moisture, or failure to seal
the sensor junction box, could cause a short circuit.
A short circuit would result in measurement error or
flowmeter failure.
To avoid risk of condensation or excessive moisture:
• Seal all conduit openings.
• Install drip legs in cable or conduit.
• Fully tighten sensor junction box cover.
• Close and tighten all NEMA housing covers.
09wire.fm Page 12 Monday, March 1, 1999 4:31 PM
Summary of Contents for Fisher-Rosemount RFT9709
Page 1: ...Model RFT9709 Transmitter Instruction Manual March 1999 ...
Page 2: ......
Page 4: ......
Page 8: ...iv RFT9709 Transmitter Instruction Manual ...
Page 34: ...26 RFT9709 Transmitter Instruction Manual ...
Page 52: ...44 RFT9709 Transmitter Instruction Manual ...
Page 60: ...52 RFT9709 Transmitter Instruction Manual ...
Page 62: ...54 RFT9709 Transmitter Instruction Manual ...
Page 72: ...64 RFT9709 Transmitter Instruction Manual ...
Page 73: ......