QED LANDTEC GEM5000 - 13 Service

GEM5000 Gas Analyzer
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Warnings displayed:
All warnings displayed will be prefixed by the word WARNING followed by a relevant
description.
There are two types of warning that may be displayed:
1. General warnings that may not affect the instrument’s function and those where the
self-test has detected a function that is outside the usual programmed operating
criteria, e.g. battery charge low, memory nearly full.
2. Operational parameters that could affect the performance of the analyzer: Cell out of
calibration, CH
4
out of calibration, CO
2
out of calibration.
The most likely reason for the errors is either an incorrect user calibration or sensor
failure. If an incorrect user calibration has caused the warning it should be correctable by
way of returning the instrument to factory settings, zeroing or carrying out a user
calibration as necessary for the relevant function.
13.0 Service
The GEM5000 gas analyzer should be regularly serviced to ensure correct and accurate
operation. QED recommends a service and recalibration every 12 months.
The GEM5000 range is ATEX certified for use in potentially explosive areas. As such it should
be serviced only by qualified engineers. Failure to observe this will result in the warranty
becoming invalid and could invalidate the ATEX certification.
Warning
If the GEM5000 is serviced by unqualified engineers the ATEX
certification may be invalidated and the instrument may be unsafe
for use in a potentially explosive atmosphere.
User serviceable parts:
There are no user serviceable parts inside the instrument.
The following parts can be user serviced:
In-line water filter
This should be regularly inspected for obstructions, moisture
or damage and changed if needed. The instrument should
never be operated without the in-line water filter as this
may result in water entering the instrument.
Sample tubing
Always ensure that sample tubes are not contaminated or
damaged.
Gas port connectors
Periodically check that the O-rings on the gas port
connectors are not damaged. A damaged O-ring can let air
into the sample gas and result in incorrect readings. If the
O-ring is damaged the complete gas port connector should
be replaced.
H
2
S filter material
When the filter material changes color to a light gray color
the filter should be replaced.