Spirax Sarco RIM20, Инструкция по установке и обслуживанию, Страница: 113 / 132

IM-P198-05 MI Issue 2 113
6.8.5 Symptom: meter displays pressure fault
1. For remote mounted electronics, carefully check all the wiring connections in the remote
mount junction box. There are 18 connections that must be correct, verify each color
(black and red), shield, and wire number.
2. Using ESD precautions and hazardous area precautions, remove the electronics enclosure
window cover. Disconnect the pressure sensor from the electronics stack or the remote
feed through board. Measure the resistance across the outside pins of the pressure sensor
connector, then across the inside pins. Both readings should be approximately 4000 ohms.
3. Go to the first column of the hidden diagnostics and record the Pe(V) and Pv(V) values
and consult the factory with findings.
Fig. 56 Pressure Sensor Connector
Outside
Inside
Outside