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Section 1
Operating Instructions
Theory of Operation
The HTT-1 is designed to be a solution for fast, easy function testing of all dielectric
withstand and continuity testers, including high current models delivering up to 30 amps. It
allows function tests of all three failure modes to ensure that your tester is functioning properly.
The HTT-1 is not designed to verify calibration points except as noted in the
Specifications Section of this manual. Optional calibration point verification is available as an
option. Contact the factory for details.
The HTT-1, used daily, will prove function of the safety testers before shifts or before
testing of a lot of products. It is provided with three switches which simulate passing and failing
equipment for ground continuity, high leakage between primary circuits and ground, and
dielectric withstand failure between primary and ground circuits. While all three switches can be
simultaneously set for failing modes, we recommend that the HTT-1 be set with one failure at a
time to ensure that your testers are functioning correctly.
A proper test plan would be constituted of the following tests:
1.
Connect HTT-1 to the tester outputs.
2.
Set all three switches on the HTT-1 to ‘PASS’.
3.
Verify passing result on the Tester.
4.
Set the Ground switch on the HTT-1 to ‘FAIL’; set both other switches to
‘PASS’.
5.
Verify Ground failure on the Tester.
6.
Set the Leakage switch on the HTT-1 to ‘FAIL’; set both other switches to
‘PASS’.
7.
Verify Leakage current failure on the Tester.
8.
Set the Hipot switch on the HTT-1 to ‘FAIL’; set both other switches to ‘PASS’.
9.
Confirm high voltage output by watching for spark in Arc Detect window of
HTT-1; verify dielectric breakdown failure on the Tester.
The above plan is presented in more detail in the Operation Section of this Manual;
showing proper connection of the HTT-1 to any dielectric tester and any high current ground
continuity tester you may wish to test.
If any of the tests above return unanticipated results, you may have a problem with your
tester. It is recommended that it be removed from service until the problem can be resolved.
Section 4 of this manual also has troubleshooting information to help you determine if the HTT-1
is functioning correctly.
Summary of Contents for HTT-1
Page 1: ...HTT 1 Function Tester Instruction Manual COMPLIANCE WEST USA...
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Page 10: ...5 Figure 1 HTT 1 Front Panel Features 6 5 4 3 1 2...
