8
Operating Techniques
The following paragraphs describe how to operate your GFM-300A-DM Tester. In the following
sections, EUT means Equipment Under Test.
1.
Make sure Power and Output switch is on the OFF position.
2.
Plug your Tester to a correctly rated source of supply.
3.
Turn Variac Knob to the minimum.
4.
Connect the output clamp leads to the EUT, making sure the alligator clamp makes as much
conductor contact as possible. This avoids extra resistance.
5.
Turn the power switch on the back to the I or ON position.
6.
Turn the output switch on the front to the I or ON position.
7.
Adjust the desired current / voltage level by increasing the voltage knob. Do not exceed 305A.
8.
When test is finish, decrease the voltage knob to minimum and turn Output switch on the front to
the O or OFF position.
9.
After completion of testing turn the power switch on the back to the O or OFF position.
