33
VERSION 05/2019
ORDER NUMBER DOC2326960
PEM-X1 CG
7.4
OPTIMIZING THE POWDER CLOUD FOR COATING
Procedure:
1. Switch on the high-voltage generation and the powder feed.
Note:
To minimize wear on the wearing parts, the total air volume should be below 5 Nm³/h.
The atomizing air should be adjusted for the
– flat jet nozzle to 0.1 Nm³/h
– round jet nozzle to > 0.2 Nm³/h
2. Adjust the powder quantity and the powder speed on a test piece.
7.4.1 RECOMMENDED SETTINGS FOR TOTAL AIR VOLUME
2x
2x
Tribo Corona
Ø
12
10
11
9
8
m /h
2.0
3
5.5
4.5
3.5
2.5
0 %
100 %
10
20
30
40
50
60
70
80
90
[µA]
[Nm³/h]
[%]
[kV]
90
80
2.0
50
50
30
1.5
40
60
40
1.2
40
P_01828
82
20
1.8
30
7.5
SWITCHING OFF THE CUP GUN
When releasing the trigger, the powder feed is stopped and the high voltage switched off.
To safely switch off the cup gun, e.g., for maintenance work, the control unit must be switched off.
7.5.1 PRESSURE RELIEF/WORK INTERRUPTION
Carry out the work steps as described in the "Pressure relief" chapter:
– if pressure relief is required,
– if the coating work is interrupted or stopped,
– before the device is cleaned on the outside, checked, or serviced,
– before the spray nozzle is installed or cleaned.
