OPERATION
C. OPERATING PROCEDURES:
1. If the instruments defaults are acceptable then be sure to connect the appropriate test
leads to the device under test (DUT) or test fixture. Be sure to connect the safety ground
(on the rear panel) to a suitable known good ground before energizing this instrument.
Then connect the return lead first to the test fixture or the DUT followed by the high
voltage lead.
Check your connections to be sure they are making good contact and that the test station
or area is clear of debris or other personnel. DO NOT TOUCH THE DEVICE
UNDER TEST ONCE THE TEST HAS BEEN STARTED.
2. Please follow the setup procedures to set the parameters. The display
will show the Dwell or Delay Timer value, the Test Voltage value, and
the High Limit Setting. On model 2925, 2935, and 2945 the memory location will also
be displayed.
S e t MX XXX . X s
X . XX K V A C XX . X X mA
On model 2945 the display will show either the Dielectric Withstand test stettings or the
Insulation Resistance test settings depending on what has been selected, as follows:
W - S e t MX XXX . X s
X . XX K V A C XX . X X mA
I - S e t MX XXX . X s
X . XX K V DC XXX. X M
On model 2945 the underbar character may be displayed after the memory number (i.e.
M5_ ) this indicates that there is another configured test that will execute after the
displayed setup has completed successfully. To view the second test setup, press the
down arrow key. Return to the first test by pressing the up arrow key. If a second test is
not configured an audible beep will be heard when the arrow keys are pressed.
Dielectric Withstand Test Mode
3. If you are performing a Ground Continuity Check the Ground Continuity must be set
to the “ON (Enabled)” position. The ground check cable has to be connected properly to
the chassis of the DUT and the green indicator on the TEST switch should be illuminated
before activating the Test switch. Otherwise, the instrument will signal a continuity
failure when the test switch is activated. Please refer to page 41 for the proper test
connections using the adapter box, to test items terminated in a three-prong plug.
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