Spirax Sarco RIM20, Инструкция по установке и обслуживанию, Страница: 112 / 132

IM-P198-05 MI Issue 2 112
6.8.4 Symptom: meter displays temperature 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. Go to the first column of the hidden diagnostics and check the resistance of the rtd1. It
should be about 1080 ohms at room temperature.
3. Using ESD precautions and hazardous area precautions, remove the electronics enclosure
window cover. Disconnect the temperature sensor from the electronics stack or the remote
feed through board. Refer to Figure 55. Measure the resistance across the outside pins
of the temperature sensor connector. It should read approximately 1080 ohms at room
temperature (higher resistance at higher temperatures).
4. Consult factory with findings
Fig. 55 Temperature Sensor Connector
Outside
Outside