10 Dräger X-am 2500
Use
3.1.4 Switching off the instrument
z Press and hold the [OK] key and [+] key simultaneously
until the countdown »3.2.1« shown on the display has
elapsed.
Before the instrument is switched off, the visual,
audible and vibration alarms are activated for a short time.
3.2 Before entering the workplace
1. Switch on the instrument. The current measured values are
shown in the display.
2. Observe any warning »« or fault messages »«.
3. Check that the gas inlet opening on the instrument is
not covered.
WARNING
Before making safety-related measurements, check
the adjustment and adjust as needed, and check all
alarm elements. A bump test must be performed
according to the national regulations.
The instrument can be operated normally. If the warning
message does not disappear automatically during
operation, the instrument must be serviced after the end
of use.
The instrument is not ready to measure and requires
maintenance.
WARNING
Fractions of catalytic poisons in the measuring gas
(e.g. volatile silicone, sulphur, heavy metal compounds
or halogenated hydrocarbon) can damage the
CatEx sensor. If the CatEx sensor can no longer be
calibrated to the target concentration, the sensor must
be replaced.
In case of measurements in an oxygen-deficient
atmosphere (<8 Vol.-% O
2
) the CatEx sensor may
show incorrect displays; in this case, a reliable
measurement with a CatEx sensor is not possible.
In an oxygen enriched atmosphere (>22 Vol.-% O
2
),
the electrical operational safety cannot be guaranteed;
switch off instrument or leave work station.
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