Checkout
2001989-203C ApexPro™ Telemetry 8-13
Test conditions
Electrical safety tests may be performed under normal ambient conditions of
temperature, humidity, and pressure.
Test equipment
The manufacturer recommended test equipment required to perform electrical safety
tests is listed below. Equivalent equipment may be substituted as necessary.
Power outlet test
It is the customer’s responsibility to verify that the power outlet is wired correctly per
the country’s electrical code standard before starting the following electrical safety
tests. The results of the following tests will be inaccurate unless a properly wired
power outlet is used.
Ground (earth) integrity
Listed below are two methods for checking the ground (earth) integrity:
Ground continuity test on page 8-13
Electrical leakage test on page 8-14
These tests determine whether the device’s exposed metal and power inlet’s earth
(ground) connection has a power ground fault condition.
Perform the test method below that is required by your country/local governing safety
organization.
Ground continuity test
Completion of this test is checked by the following steps:
1. Disconnect the DUT (device under test) from the wall receptacle.
2. Connect the negative (–) lead of the ohm meter to the protective earth terminal
(ground pin in power inlet connector) or the protective earth pin in the Mains
plug (ground pin in power cord).
3. Set the DMM to measure ohms.
4. Connect the positive (+) lead of the ohm meter to all exposed metal surfaces on
the DUT. If the metal surfaces are anodized or painted, scrape off a small area in
an inconspicuous area for the probe to make contact with the metal.
Item Specifications
Leakage Current Tester See figures shown in Ground (earth) wire
leakage current tests on page 8-16 and
Enclosure (chassis) leakage current test on
page 8-17
Digital Multimeter (DMM) resistance, AC voltage
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