Figure 4-1. Example Of Model 80I Interface Board Voltage Test Point Locations; Table 4-6. Probe Troubleshooting - 82I Measurement Interface Board Leds - Thermo Scientific Mercury Freedom 80i Manual

Probe Troubleshooting
with 82
Thermo Fisher Scientific
Figure 4–1. Example of Model 80i Interface Board Voltage Test Point Locations
LEDs on the 82i measurement interface board are used to troubleshoot the
82i and the 83i. Each LED represents a valve in either the 82i or 83i.
i
LEDs
When an LED is ON, the associated valve is ON. Refer to Table 4–6 for a
recommended troubleshooting action to perform. In most cases, the
problem will involve wiring and/or plumbing.
Table 4–6. Probe Troubleshooting – 82i Measurement Interface Board LEDs
LED No.
4
5
6
7
8
9
10
Description Action
Blowback stinger (83i) Check air supply and pressures via diagnostics.
Check air at the probe.
Blowback filter (83i)
Cal zero (83i) Verify that the 81i is outputting cal gas, diagnostics,
flows. Check at probe also.
Hg spike (83i)
Eductor (82i) Check failsafe temperature.
Dilution (82i) Check air supply and pressures via diagnostics.
Check air at the probe.
Mercury valve (83i) Verify that the 81i is outputting cal gas, diagnostics,
Troubleshooting
System Troubleshooting Guides
Model 80i Only
Mercury System Manual 4-15