Compliance West HT-3000P, Instruction Manual

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5. Make sure the power switch on the equipment being tested is in the 1 or ON position.
6. Push the TEST button. The HT-3000P will:
a. Check for continuity between exposed metal parts and the grounding pin of the power
supply cord.
- If the ground circuit resistance is higher than three ohms, the red
Ground
Open LED will light, the buzzer will sound, and the test will terminate.
- If the ground circuit resistance is three ohms or lower, the green Ground OK
LED will light and the test will continue.
b. Ramp the voltage at the rate set by the Ramp Time procedure.
If leakage current between the AC pins of the power supply cord and the chassis
ground of the unit rises above the value set by the Leakage Limit procedure, the
red
Excess Leakage LED will light, the buzzer will sound, and the test will
terminate.
If the leakage current level is below the set level when the high voltage set by the
High Voltage Level procedure is reached, the green
Full Voltage LED will light
and the test will continue.
c. Conduct the high voltage test for the amount of time set in the Test Duration
procedure.
If a breakdown of the insulation system between primary voltage and ground is
detected, the red
Hipot Fail LED will light, the buzzer will sound, and the test
will terminate.
If no breakdown is detected, the high voltage will be bled off, the green Hipot
Pass LED will light, and the red RESET switch will light.
7. For safety, the operator should not disconnect the cords until the Hipot Pass LED is lit and
the reading on the front panel voltage meter has dropped to zero. This will ensure that the
test voltage has been bled off.
8. The operator can now remove the equipment from the HT-3000P and connect another. The
HT-3000P should then be armed by pressing the
RESET button. When ready, the operator
then presses the TEST button and the test procedure will be conducted again.
Test results
Hipot Pass
If the green Hipot Pass LED is lit, the equipment being tested passed all test parameters.
Red LED/Buzzer
Any red LED/buzzer test result means the equipment being tested failed a test phase. The
equipment should be set aside, reworked and retested with acceptable results before it is shipped.
General interpretations of test failures are included in Section 1, "Using the HT-3000P Dielectric
Withstand Tester".