Figure 17-1: Removing the cover of the junction box
3. Disconnect the 4-wire cable between the transmitter and the sensor.
4. Identify the core processor terminals inside the transmitter junction box.
Figure 17-2: Core processor terminals inside the transmitter junction box
5. For the 700 core processor only, measure the resistance between the terminal pairs listed here.
Terminal pair
(transmitter)
Terminal pair (core
processor)
Function
Expected resistance
White – green
3–4
RS-485/A and RS-485/B
29 kΩ to 33 kΩ
Troubleshooting
Configuration and Use Manual
March 2019
MMI-20025166
284
Micro Motion Model 5700 Transmitters with Configurable Outputs