98
VERSION 03/2018
ORDER NUMBER DOC 2369735
11 FUNCTION TEST AFTER THE REPAIR
After all repairs, the AquaCoat system must be checked for safe condition before
recommissioning. The necessary scope of inspection and testing depends on the repair
carried out and must be documented by the repair staff.
The system must not be filled with liquid for this function check.
Activities
Aid tools
1. Check connections
Visual check
– Check all product screw connections.
– Check all air connections.
– All electrical cables must be firmly secured.
"Safety-relevant check"
2. Check grounding connection
Multimeter
– Measure resistance between grounding terminal and:
– Pneumatic door switch
– Product hose connection
– Grounding switch
Set value: respective maximum 10 Ω.
– Outer shell of the product hose on the spray gun
(in front of the stripped part)
Desired value: maximal 1 MΩ.
– Check visually the black grounding band in the cabinet door including the
black grounding bolt.
"Safety-relevant check"
3. Check potential equalization
Multimeter
– Measure resistance between leakage resistance and:
– High-voltage cascade
– Grounding point
– Pump support
– Potential equalization line at the pump
– Connection terminal for product tank
Set value: respective maximum 10 Ω.
4. Connect the device
– Connect grounding cable.
– Main tap closed.
– Connect air supply (mains pressure 0.8 MPa; 8 bar; 116 psi).
– Connect the mains.
5. Adjust alarm horn
Hexagon socket wrench
3 mm; 0.12 inch
(only for level indication with alarm horn)
– Loosen control unit and remove from mounting (see Chapter
– Switch air on.
– Set alarm horn regulator to normal volume.
– Switch air off and remount control unit in cabinet.
