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new Charge-LO current via the numeric keypad and then press the ENTER key to
accept the new parameter or press the EXIT key to escape from the edit.
To automatically set the Charge-LO current, use the up and down arrow keys or the
ENTER key and scroll the highlighted area to the Charge-LO current parameter.
Make sure that the voltage and ramp times are set to the values that will be used on
the DUT and connect the test cables or test fixture between the instrument and DUT.
Press the test button.
Please be aware that the program will activate high voltage
on the output connector when the Test button is pressed.
The program will read the charging current of DUT and set the Charge-LO current at
approximately one half (1/2) of the reading. The highlighted parameter field will briefly
show the word “READING” and then the display the new value. The new value is
automatically updated in the field and does not allow an escape to the original value or
that the ENTER key be used to accept the new parameter.
4.5.4. Continuity and Ground Bond
The Continuity test is generally used to test the ground conductor of a line cord. If the
resistance exceeds the HI-Limit trip point or drops below the LO-Limit trip point the
OMNIA II will signal a continuity failure.
NOTE:
When testing products with two pronged plugs do not activate the
continuity circuit.
When the Ground Bond test is selected on the OMNIA, the High Current will be
applied through the Current lead and flow back through the Return lead. The
resistance is measured and compared to the HI and LO-Limit trip points stored in
memory.
4.5.5. AC Ground Bond
From the Setup Tests Selection screen, press the
“Add” soft key. The test types soft
keys will now be displayed. From the Setup Tests Selection screen,
press the “AC
Ground Bond
” soft key. The Ground Bond Parameter Setting screen will now be
displayed. The Ground Bond Parameter Setting screen will appear as follows:
Содержание OMNIA II 8204
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Страница 87: ...81 conditions The different combinations are represented in the table below ...
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