Dräger X-am 2800 Notice D'utilisation page 57

Check
Check signalling elements with the sig-
nal test
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
Manual 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.
®
X-am 2800 / X-am
, XXS H S LC, XXS
2 2
, XXS NO
2 2
2
®
5800
Interval
Automatically whenever the device is
started
®
Calibration interval
1)
Every 6 months
1)
Every 4 months
See the special data sheets for the
respective sensors.
2
Maintenance
& Gas Detectors
sensors.
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en
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