Chapter 2 Measurement Procedures
1.
Confirm that the power of the Insulation Resistance
Tester is turned off.
2.
Plug the test lead securely into the LINE terminal of the
Insulation Resistance Tester.
3.
Before Starting (Before using the test leads, be sure to
conduct the following safety checks.)
a. Short circuit the tips of the test leads.
b. Use the function selector to select Insulation Resistance.
c. Upon pressing the MEASURE key on the L9788-10,
the MEASURE key lights up in red and indicator nee-
dle points at 0 M.
d. Press LIGHT key of the instrument to confirm that the
light at the tip of the L9788-10 comes on.
e. To prevent an electric shock accident, confirm that the
white portion (insulation layer) inside the cable is not
exposed. If a color inside the cable is exposed, do not
use the cable.
4.
Press the MEASURE key to start the measurement.