Panametrics PanaFlow MV80, Руководство пользователя, Страница: 149 / 184

PanaFlow™ MV80, MV82 & MV84 User’s Manual 137
Chapter 5. Troubleshooting and Repair
5.5.3 Symptom: No Output
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. Turn on the pressure and temperature display in the Display Menu and verify that the pressure and temperature
are correct.
3. Using ESD precautions and hazardous area precautions, remove the electronics enclosure window cover.
Disconnect the vortex sensor from the electronics stack (see
Figure 121 below) or the remote feed through board
(see Figure 122 below). Measure the resistance from each outside pin to the meter ground (see Figure 123 on
page 138 ) - each should be open. Measure the resistance from the center pin to the meter ground - this should
be grounded to the meter.
VORTEX
TEMPERATURE
PRESSURE
Figure 121: Electronics Stack Sensor Connections
Figure 122: Remote Feed Through Board Sensor Connections