9023744 - 3rd edition - October 2005
Page 21 of 40
Maintenance
Maintenance
● EN 50073 and national regulations applicable must be observed.
Every day
● Visual inspection to check that it is operational.
When using for the first time
● Check the zero adjustment and sensitivity calibration, see page 15 to page 17.
● Check that display on the transmitter matches the display on the central unit.
At regular intervals
to be established by the person responsible for the gas warning system, not
exceeding a time interval of six months:
● Check the zero adjustment and sensitivity calibration, see page 15 to page 17.
In particular, it is important to check the condition of the sensor sintered metal disc
regularly, in case it is impairing gas flow due to corrosion or deposits (such as dust,
oil or aerosol).
Every year
● Inspection by trained specialists.
In each case the length of the interval between inspections should be decided
according to safety considerations, process conditions and equipment
requirements.
We recommend that a service contract be taken out with DrägerService and that all
repairs be carried out by DrägerService.
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