P2.x ATEX
6 Maintenance
Maintenance work on the device must be carried out in a non-hazardous area (ex-free zone) and in a cooled down condition. In
particular, cleaning work with pressurised air must only be carried out in a non-hazardous area.
During maintenance, remember:
– The equipment must be maintained by a professional familiar with the safety requirements and risks.
– Only perform maintenance work described in these operating and installation instructions.
– Observe the respective safety regulations and operating specifications when performing any type of maintenance.
– Always use genuine spare parts.
NOTICE
Please refer to the assembly drawings in the appendix when carrying out maintenance.
DANGER
Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
DANGER
Danger of explosions, danger of poisoning from poisonous corrosive gases
During maintenance work, depending on the medium used, explosive and/or poisonous
corrosive gases could escape, and this could lead to a danger of explosion or could be
hazardous to health.
a) Inspect the leak tightness of your sampling system before putting the device into op-
eration.
b) Ensure that gases that are hazardous to health are discharged safely.
c) Turn off the gas supply before beginning any maintenance or repair work and flush
the gas lines with inert gas or air. Secure the gas supply so that it cannot be turned on
unintentionally.
d) Protect yourself during maintenance from poisonous / corrosive gases. Wear appro-
priate protective equipment.
CAUTION
Tipping hazard
Equipment damage.
Secure the device against tipping, sliding and falling.
CAUTION
Gas leakage
The sample gas pump should not be dismantled under pressure.
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Bühler Technologies GmbH
BE420002 ◦ 07/2022
