8-1 Measuring method
(1) Press the PV button to select insulation measurement function. The LCD
shows “InSU” for about one second, and the PV LED turns off.
(2) Connect the test leads as Fig. 8-1 shows.
MODEL7196A to LINE terminal, and MODEL7244A to EARTH terminal
Fig. 8-1
(3) Check the voltage rating of the object to be tested before making
measurement and select the voltage applied with the rated measure-
ment voltage button.
● Hold down 1000V button two seconds or longer.
● It is possible to disable 1000V range.
[How to disable/enable 1000V range]
1. Keep the 1000V button held down and power on the instrument.
2. Wait for about 5 seconds with the 1000V button held down to disable/
enable 1000V range.
[How to confirm 1000V is surely disabled]
The LCD shows “no” when pressing 1000V button.
(4) Connect the earth test lead (MODEL7244A) to the earth terminal of the
circuit under test. Then, place the tip of remote probe (line) to the circuit
under test and press TEST or remote control switch to start a continuous
measurement. Press TEST or remote control switch again to stop
measurement.
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