GE PanaFlow MV80, Руководство пользователя

Страница: 134 / 164

Chapter 5. Troubleshooting and Repair
122 PanaFlow™ MV80 & MV82 User’s Manual
5.4.5 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 (see
Figure 78 on page 119 ) or the remote feed
through board (see Figure 79 on page 119 ). Measure the resistance across the outside pins of the pressure
sensor connector, then across the inside pins (see Figure 82 below). Both readings should be approximately
4000 ohms.
Figure 82: Pressure Sensor Connector
3. Go to the first column of the hidden diagnostics and record the Pe(V) and Pv(V) values and consult GE with your
findings.
OUTSIDE
INSIDE
OUTSIDE
INSIDE