Hioki IR4051 - Measurement Function Specifications; Insulation Resistance Specs

54
Measurement functions
Temperature and humidity for guaranteed accuracy:
23°C±5°C (73.4°F ±8.5°F) and 90% RH or lower
Insulation Resistance Measurement
Rated mea-
surement volt-
age (DC)
50 V 125 V 250 V 500 V 1000 V
Effective maxi-
mum display
value
100 MΩ 250 MΩ 500 MΩ 2000 MΩ 4000 MΩ
Effective medi-
um value
2 MΩ 5 MΩ 10 MΩ 50 MΩ 100 MΩ
1st effective
measuring
range [MΩ]
0.200 to
10.00
0.200 to
25.0
0.200 to
50.0
0.200 to
500
0.200 to
1000
Accuracy
(Limit deviation
tolerance)
±4%rdg.
2nd effective
measuring
range [MΩ]
10.1 to
100.0
25.1 to
250
50.1 to
500
501 to
2000
1010 to
4000
Accuracy
(Limit deviation
tolerance)
±8%rdg.
Other measur-
ing range [MΩ]
0 to 0.199
Accuracy
(Limit deviation
tolerance)
±2%rdg.±6dgt.
HIOKI IR4051A981-09