Maintenance | en
X-am
®
2800 / X-am
®
5800 57
For inspection and maintenance, see e.g.:
– EN/IEC 60079-29-2 – Gas detectors - Selection, installation, use and
maintenance of detectors for flammable gases and oxygen
– EN 45544-4 – Electrical apparatus used for the direct detection and direct
concentration measurement of toxic gases and vapours - Part 4: Guide for
selection, installation, use and maintenance
– National regulations
5.2 Calibration intervals
Observe the relevant specifications in the DrägerSensor
®
& Gas Detectors
Manual and in the instructions for use/data sheets of the Dräger sensors
installed.
Recommended calibration intervals for DrägerSensors:
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
2 sensors.
Different test gases are used depending on the type of calibration.
Check signalling elements with the sig-
nal test
Automatically whenever the device is
started
DrägerSensor
®
Calibration interval
CatEx SR, XXS O
2, XXS H2S LC, XXS
CO LC, XXS SO
2, XXS NO2
Every 6 months
1)
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.
CatEx SR, measured gas: H2
Every 4 months
1)
Other DrägerSensors See the special data sheets for the
respective sensors.
Check Interval
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