Hioki IR3455, Instruction Manual

Page: 153 / 184

7.2 Measurement Specifications
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付録
索引
147
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 V DC to 5.00 kV
DC
Setting method:
• Choose from test voltage presets (250 V,
500 V, 1 kV, 2.5 kV, 5 kV)
• 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 instrument measures
a resistance equal to or higher than the
result of division of test voltage (set
value) 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.
±
5 dgt.
(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

to the test volt-
age (set value) by 0.5 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 to 1.00 kV
1 mA
1.10 kV to 2.50 kV
0. 5 mA
2.60 kV to 5.00 kV
0.25 mA