Emerson Micro Motion 5700 Configuration And Use Manual page 256

Troubleshooting
5.
Terminal pair (trans- Terminal pair (core
mitter) processor)
White – green 3–4
Black – white 2–3
Black – green 2–4
6.
7.
Postrequisites
To return to normal operation:
1.
2.
3.
248
Figure 15-2: Core processor terminals inside the transmitter junction box
For the 700 core processor only, measure the resistance between the terminal pairs
listed here.
Function
RS-485/A and RS-485/B
VDC– and RS-485/A
VDC– and RS-485/B
If any resistance measurements are lower than specified, contact customer service.
If the resistance measurements fall within the expected ranges, return the
transmitter to normal operation and check the wiring between the transmitter and
the core processor. If that does not resolve the problem, contact customer service.
Reconnect the 4-wire cable from the sensor to the core processor terminals.
Replace the junction box cover.
Restore power to the transmitter.
Expected resistance
29 kΩ to 33 kΩ
29 kΩ to 33 kΩ
16 kΩ to 18 kΩ
Micro Motion Model 5700 with Ethernet Transmitters