Filter
Top Products
Electrical Tests
ElectricalElectrical
Electrical
TestsTests
Tests
Use the following procedures to test the condition
of the power supply and gun body, and electrical
continuity between components.
Use megohmmeter Part No. 241079 (AA) and an
applied voltage of 500 V. Connect the leads as
shown.
Megohmmeter Part No. 241079 (AA-see Fig.
17) is not approved for use in a hazardous area.
To reduce the risk of sparking, do not use the
megohmmeter to check electrical grounding
unless:
• The gun has been removed from the hazardous
area;
• Or all spraying devices in the hazardous area
are turned off, ventilation fans in the hazardous
area are operating, and there are no ammable
vapors in the area (such as open solvent
containers or fumes from spraying).
Failure to follow this warning could cause re,
explosion, and electric shock and result in serious
injury and property damage.
TestTest
Test
GunGun
Gun
ResistanceResistance
Resistance
1. Flush and dry the uid passage.
2. ForFor
For
ModelModel
Model
L40T14L40T14
L40T14
andand
and
L40T15L40T15
L40T15
gunsguns
guns
only:only:
only:
Test
the barrel continuity to verify that the metal pin
in the barrel is properly grounded. Measure
resistance between the metal pin (GP) and the
air swivel (21). The resistance should be less
than 100 ohms. If the resistance is 100 ohms or
more, replace the gun body.
3. ForFor
For
allall
all
guns:guns:
guns:
Trigger the gun and measure
resistance between the electrode needle tip (3)
and the air swivel (21). The resistance should be:
• 75–120 megohms for 40kV guns
• 104–148 megohms for 60kV guns
• 148–193 megohms for 85kV guns
If outside this range, test the gun
untriggered. If still outside this range, go to
Test Power Supply Resistance, page 32. If in range,
see Electrical Troubleshooting, page 35 for other
possible causes of poor performance.
Figure 17 Test Gun Resistance
3A2494D31