Hioki DSM-8542, Instruction Manual, Page: 66 / 140

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6. Measurement
Works for insulation resistance are diverse in materials, shapes, electrical characteristics
and other parameters. Insulation resistance is measured by various methods suiting
these parameters.
This chapter describes the measuring terminals of the meter and measuring methods for
insulation resistance that are suitable to various works.
6.1
Functions of and Connecting Measuring Terminals
6.1.1 Functions of measuring terminals
The functions of the measuring terminals located on the front panel are described.
“INPUT”:
A coaxial measuring input terminal whose outer electrode (shielded side) is
connected to the voltage input terminal of the “VOLTAGE INPUT” connector
on the rear panel.
“OUTPUT”: A measuring voltage output terminal.
Insulation resistance is measured between this “OUTPUT” terminal and the
“INPUT” terminal. The electrical polarity of the “OUTPUT” terminal is “+.”
[Warning]
Setting of measuring voltage outputs voltage of maximum 1000V between the
“OUTPUT” terminal and “INPUT” terminal or the outer electrode (shielded
side). It is very hazardous. Be certain to connect a measuring terminal by
turning the POWER switch off and checking that “POWER” on the panel is
extinguished.