ONICON F-2600 - Manual (Page 108)

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F-2600 & F-2700 Vortex Flow Meter Manual 02/15 - 0808-7 / 19204 Page 108
5.6.4 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 54 or 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).
Figure 57. Temperature Sensor Connector
4. Consult the factory with findings
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