Oldham iTrans, User Manual

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iTrans Fixed Point Single/Dual Gas Monitor Troubleshooting
(P/N: 77023554) iTrans User Manual 8-1
T
ROUBLESHOOTING
Chapter
8
8.1. Introduction
This chapter provides troubleshooting information for the gas monitor.
8.2. Diagnosing Common Problems
Table 8-1. Common Problems
Symptom Problem Solution
LED display does not
light up.
Input voltage is too low
Electronics module has
failed
Check for presence of input
voltage.
Output outside
4-20 mA range
Unit in calibration mode
Electronics module has
failed
Exit calibration mode.
Replace electronics module.
Output does not
change when gas
concentration
changes
Electronics module has
failed
Replace electronics module.
Cannot calibrate
SPAN
Sensor has failed
Electronics module has
failed
Replace sensor and
calibrate.
Replace electronics module
and calibrate.