bürkert PTB 03 ATEX 5014 X Bedienungsanleitung Seite 20

4.2 Commissioning
Before commissioning, ensure that
• The device has been correctly installed,
• The connections have been correctly made,
• The device is not damaged,
• All bolts are securely tightened.
5 MAINTENANCE AND FAULTS
DANGER!
Hazards due to improper service, repair and maintenance work.
• Service and maintenance work on the device may only be carried out
by authorised and suitably qualified personnel.
• Repair work may only be carried out by the manufacturer!
• When carrying out repair or maintenance work on the system, the valve
must not be opened and the earth connection must not be disconnec-
ted!
When operated under the conditions described in these instructions, the
units are maintenance-free.
5.1 Faults
In the event of faults, ensure that
• The device has been correctly installed,
• The connections have been correctly made,
• The device is not damaged,
• All bolts are securely tightened.
• The electric and pneumatic power supplies are connected,
• All pipework is free.
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