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HI-POT TEST
1. Hi-Pot Test
THIS IS A MANDATORY TEST
CAUTION - All units that are disassembled as
part of a repair MUST be Hi-Pot tested before
being returned to the customer.
This test applies a high voltage to the AC line
cord and measures the current leakage to the
chassis and/or other metal parts on the outside
of the unit to check for potential shock hazards.
If the unit fails Hi-Pot test, it must be returned to
the technician for troubleshooting and repair of
the problem, after which it must be Hi-Pot tested
again
Hi- Pot Tester Settings:
Type of product: 100-240 VAC 2-wire Class II
Test Voltage: 3000 VAC
Trip Current Limits: 0.5mA min, 4mA max
Ramp: 1 sec
Dwell: 2 sec
Procedure
1.1 Connect the positive side (hot) of the Hi-
Pot tester to both terminals of the AC mains
input.
1.2 Connect the return of the Hi-Pot tester
to all connections on the 3.5mm audio jack,
ground shell on either USB connector and all
points on the Ethernet connector.
1.3 Connect the continuity check terminal of
the Hi-Pot tester to the shell of the USB. (all
grounds are connected to the same point inter-
nal to the product, so only a single connection
point is required).
This test must be performed only after the
system has been completely assembled. Fail-
ure of this test indicates a faulty transformer,
defective or incorrectly dressed primary wiring,
improperly attached leads, surface contamina-
tion of either the power supply board or the I/O
connector board, or incorrectly adjusted trip
point on tester.
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