7.2 Measurement Specifications
152
Values measured: Insulation resistance,
leakage current, voltage, and temperature
7.2.1
Insulation Resistance Measurement
7.2 Measurement Specifications
Measurement
test voltage
Selectable range: 250 VDC to 5.00 kVDC
Setting method:
• Choose from test voltage presets (250 V,
500 V, 1 kV, 2.5 kV, 5kV)
• Fine adjustment (between 250 V and 1
kV with a resolution of 25 V or between 1
kV and 5 kV with a resolution of 100 V.)
Output voltage
accuracy
• -0% and +10% of setting
• Applies when the tester measures a
resistance equal to or higher than the
result of division of test voltage (setting)
by rated measuring current.
Short-circuit
current
2 mA or less
Output voltage
monitor
function
Display range: 0 V to 999 V, 0.98 kV to
5.50 kV
Monitored value accuracy:
±
5%rdg.
±
5dgt.
(Actual output voltage is within the tolerance
of the output voltage accuracy given above.)
Measuring
range
Resistance obtained by dividing the value
of the range from 0.00 M
Ω
to the test volt-
age (setting) by 1 nA (Measuring range
varies according to test voltage.)
*Rated measuring current:
Electric current that can be generated with the set
test voltage is maintained.
Test voltage
(setting)
Rated measuring
current*
(Tolerance: -0%,+10%)
250 V - 1.00 kV
1 mA
1.10 kV - 2.50 kV
0. 5mA
2.60 kV - 5.00 kV
0.25 mA
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