Dräger X-AM 5000 Technical Manual page 34

Maintenance
−
The current gas concentration values
and the special symbol »
bump test) flash.
•
Press the key to start the function
OK
test with gas.
•
Open the test gas cylinder valve to let
test gas flow over the sensor.
−
If gas concentration exceeds the
alarm thresholds A 1 or A 2 the corre-
sponding alarm will occur.
Exit the function test with gas:
After the preset bump test concentration
is reached or a gas alarm is triggered
(with the "Quick bump test"):
−
The display containing the current
gas concentration changes with the
display » OK «.
−
The bump test that was carried out is
documented with the result and date
in the device memory.
•
Close the test gas cylinder valve and
remove the device from the calibrati-
on cradle.
−
If the concentration values have now
fallen under the A1 alarm setpoints,
the device returns to the measuring
mode.
−
If the set bump test concentration is not reached within the specified time, the alarm
mode is activated to indicate failure.
−
The fault message »
and » « is displayed instead of
the measured value on the faulty
measuring channel.
•
In this case, repeat the function test
with gas or calibrate the device,
page 37.
The function test with gas can also be
carried out automatically.
The "Bump Test Station" is required for
this function, refer to page 35.
34
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