Quick Installation Guide

00825-0100-4664, Rev BB January 2013

Rosemount 8712 / 8700 Series

Run the appropriate size cable through the conduit connections in your magnetic flowmeter system. Run the power cable from the power source to the transmitter. Run the coil drive and signal cables between the flowmeter sensor and transmitter.

Installed signal wiring should not be run together and should not be in the same cable tray as AC or DC power wiring.

Device must be properly grounded or earthed according to local electric codes.

Rosemount combination cable part number 08732-0753-1003 (ft) or 08732-0753-2004

(m)is required to be used to meet EMC requirements.

Transmitter to Sensor Wiring

The transmitter can be integral to the sensor or remotely mounted following the wiring instructions.

Remote Mount Cable Requirements and Preparation

For installations using the individual coil drive and signal cable, lengths should be limited to less than 1,000 feet (300 meters). Equal length cable is required for each. See Table 7.

For installations using the combination coil drive and signal cable, lengths should be limited to less than 330 feet (100 meters). See Table 7.

Prepare the ends of the coil drive and signal cables as shown in Figure 15. Limit the unshielded wire length to 1-inch on both the coil drive and signal cables. Any unsheathed wire should be wrapped with proper insulation. Excessive lead length or failure to connect cable shields can create electrical noise resulting in unstable meter readings.

Figure 15. Cable Preparation Detail

NOTE

Dimensions are in inches (millimeters).

1.00

(26)

Cable Shield

19

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Emerson 8712E manual Transmitter to Sensor Wiring, Remote Mount Cable Requirements and Preparation