7
Current Verification
1.
Make sure output and rear power switch is on the OFF position.
2.
Remove other objects from the work area to avoid shock.
3.
Make sure the clamps are place on a non conductive bench.
4.
Plug your Tester to a correctly rated source of supply.
5.
Turn Variac Knob to the minimum.
6.
Short circuit the output leads and connect a current clamp meter at one of the leads.
7.
Make sure the area around the leads and clamps is free from people contact.
8.
Turn the Output switch on the front to the I or ON position.
9.
Increase the current by turning the variac knob clockwise and confirm current meter in the front
panel is in accordance with the current clamp meter, voltage meter should not move significantly.
10.
Turn voltage knob to minimum.
11.
Turn the Output switch on the front to the O or OFF position.
12.
Turn the power switch on the back to the O or OFF position.
13.
Remove current clamp.
14.
Disconnect lead clamps (open circuit).
Figure 2-4. Current Test Verification set up
