Table of Contents
Advertisement
Operating manual GA 5000EAC Electrostatic Automatic Spray Gun (AirCoat)
11 Function Test after Repair Work
11 FUNCTION TEST AFTER REPAIR WORK
After all repairs, the device 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 personnel.
11.1 CHECK HIGH VOLTAGE
Required test equipment:
EPG 5000 control unit and HV 200 high-voltage tester.
High-voltage measurement on spraying gun.
Connect gun cable to control unit. Mount spray gun to grounded gun support. Switch on
the control unit.
The high voltage should be 60 to 65 kV in dry ambient air. The value can be checked with the
display on the control unit (EPG 5000).
Notes:
– The gun must be clean and dry and must not have any paint or cleaning agent residues.
– In the case of ambient air with a high air humidity, the measured value can reduce to 50
to 55 kV.
High-voltage measurement with high-voltage tester
Place the ball of the high-voltage tester on the gun electrode and turn on the high voltage.
The measured value should be 70 to 80 kV.
Notes:
– When measuring the high voltage the measuring device should be held at arms length
as far from the body as possible.
– There should be no chargeable objects within a radius of 1 m; 3.28 ft of the place where
the measurements are taken.
– The placing of the measuring ball of the high-voltage measuring device reduces the
spraying of the high-voltage electrode. As a result, the high-voltage value increases
compared to spraying in an empty space.
Disruptive discharge test
Check to see if the gun is grounded using the grounding rod. No sparks should form.
Notes:
– In the vicinity of the electrode, harmless corona discharges can occur.
66
1
B_06049
Order number 2360922 | Edition 09/2022
Advertisement
Table of Contents
