en | Maintenance
58 X-am
®
2800 / X-am
®
5800
5.4 Performing the bump test
The bump test can be performed as follows:
– Manual bump test
– Bump test with the bump test station
– Bump test with X-dock
The Dräger CC-Vision PC software can be used to configure whether a quick
or advanced bump test should be performed with the menu or in the bump test
station.
Dräger recommends using the extended bump test for cross calibrations (see
the Dräger X-dock instructions for use).
For the CatEx sensor, we recommend methane as the test gas, including for
cross calibration, if methane is expected in the target application.
X-am 5800: With a manual bump test, consideration must be given to the
influence of the H
2 added signal.
An active H
2 added signal will be automatically temporarily deactivated for the
duration of a manual calibration, a PC calibration or an automatic bump test.
Prerequisites
– A bump test can only be carried out if at least one sensor has been
configured for the bump test with the Dräger CC-Vision PC software (does
not apply to bump test with X-dock).
– The gas detector is switched on and warm-up phase 1 is complete.
– A suitable test gas cylinder is available, e.g. test gas cylinder (order number
68 11 130) with the following mixed gas ratios: 50 ppm CO, 15 ppm H
2S,
2.5 Vol% % CH4, 18 Vol% O
2 (other test gas cylinders can be added on
request)
WARNING
Health hazard from test gas
Breathing in of test gas can be harmful to health or lead to death.
► Do not inhale the test gas.
► Observe risks connected with the test gas, hazards notes and safety advice
(see for example safety data sheets, instructions on the testing media).
Dräger recommends a test gas concentration of <60 %LEL for CatEx sensors
and a measuring range of 0 % to 100 %LEL.
1. Connect the test gas cylinder to the calibration adapter (order no. 8318752).
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