24 Technical manual | X-am
®
2800 / X-am
®
5800
Maintenance
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 H2 added signal will be automatically temporarily deactivated for the
duration of a manual calibration, a PC calibration or an automatic bump test.
The bump test can also be carried out in the password-protected menu.
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).
2. Insert the switched-on gas detector into the calibration adapter and press it
down until it locks into place.
3. Call the bump test via the Quick menu. Failure to do so means that the bump
test is performed without documentation.
4. Open the test gas cylinder valve, the volume flow must be 0.5 L/min and the gas
concentration must be higher (lower with O
2) than the alarm threshold
concentration that is to be tested.
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