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EPG-SPRINT XE
OPERATING MANUAL
VERSION 09/2017 ORDER NUMBER DOC2354913
6.6 GROUNDING
For safety reasons, the control unit must be properly grounded. The grounding connection
to the energy supply (socket) is made via the mains connection cable's protective
conductor, while that to the work piece/system is made via the knurled screw on the
rear of the control unit. Both connections are absolutely essential. If installed correctly as
described above, the spray gun is grounded via the gun cable between the control unit
and spray gun.
Good grounding of the work piece is also necessary for optimum powder coating.
A poorly grounded work piece causes:
– dangerous electric charging of the work piece,
– very poor wrap-around,
– uneven coating,
– back spraying to the spray gun, i.e., contamination.
Prerequisites for perfect grounding and coating are:
– Clean work piece suspension.
– Grounding of spray booth, conveyor system and suspension on the building side in
accordance with the operating manuals or the manufacturer's information.
– Grounding of all conductive parts within the working area.
– The grounding resistance of the work piece must not exceed 1 MΩ (megohm).
(Resistance to ground measured at 500 V or 1000 V).
– The footwear worn by the operators must comply with the requirements of ENISO
20344. The measured insulation resistance must not exceed 100 MΩ (megohms).
– The protective clothing, including gloves, must comply with the requirements of ENISO
1149-5. The measured insulation resistance must not exceed 100 MΩ (megohms).
No Grounding!
Risk of explosion and risk of electric shock.
Electrostatic control units and the associated spray equipment
may only be connected to mains supplies with a protective
conductor connection (PE conductor)!
DANGER
Heavy paint mist if grounding is insucient!
Danger of poisoning.
Insucient paint application quality.
Ground all device components.
Ground the work pieces to be coated.
WARNING
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