Calibration Intervals; Test Gases; Performing The Bump Test - Dräger X-am 2800 Gebrauchsanweisung

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Maintenance
5.2

Calibration intervals

Observe the relevant specifications in the Sensor Handbook and in the
instructions for use/data sheets of the Dräger sensors installed.
Recommended calibration intervals for DrägerSensors:
DrägerSensor
CatEx SR, XXS O
CO LC, XXS SO
CatEx SR, measured gas: H
Other DrägerSensors
1) The recommended calibration interval can be extended to 12 months if it is ensured that an
advanced bump test (tolerance: max. ±20 %) is carried out and passed before use in safety-rele-
vant measurements. The advanced bump test checks the existing sensitivity.
National regulations may stipulate shorter intervals and must be applied.
For changing, retrofitting or removing a sensor, refer to the technical manual.
5.3

Test gases

Test gas properties (e.g. relative humidity, concentration) can be found in the
relevant sensor data sheet.
The relative humidity of the test gas is not relevant for O
Different test gases are used depending on the type of calibration.
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
52
, XXS H S LC, XXS
2 2
, XXS NO
2 2
2
Calibration interval
1)
Every 6 months
1)
Every 4 months
See the special data sheets for the
respective sensors.
2
sensors.
®
X-am 2800