Owner's manual

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Applicable standards
IEC 61557
IEC 61010-1 Measurement CAT.III 600V Pollution degree2
(Location for use: altitude 2000m or less)
IEC 61010-031
IEC 60529 IP40
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Measuring range and accuracy
<Insulation resistance range>
３．Specification
Nominal volta
g
e
Auto Range
Open circuit
voltage
Short circuit
current
Nominal test
current
1
st
effective
measurement
range
Center scale
range
Accuracy
2
nd
effective
measurement
range
Accuracy
Accuracy at 0
KEW3021
1000V
0∼4/40/400/2000MΩ
Nominal test voltage 0%∼＋20%
Within 1.5mA
1MΩ
1mA 0%∼＋20%
0.100∼
1000MΩ
50MΩ
0∼
0.099MΩ
1001∼
2000MΩ
200.1∼
2000MΩ
40.0∼
2000MΩ
20.01∼
200.0MΩ
0∼
0.099MΩ
0∼
0.099MΩ
0∼
0.099MΩ
±(2%rdg＋6dgt)
±(5%rdg＋6dgt)
Within 6dgt
50MΩ 5MΩ 5MΩ
0.100∼
200.0MΩ
0.100∼
40.0MΩ
0.100∼
20.0MΩ
0.5MΩ 0.25MΩ 0.125MΩ
500V 250V 125V
0∼4/40/200MΩ
Nominal volta
g
e
Auto Range
Open circuit
voltage
Short circuit
current
Nominal test
current
1
st
effective
measurement
range
Center scale
range
Accuracy
2
nd
effective
measurement
range
Accuracy
Accuracy at 0
KEW3022
500V
Nominal test voltage 0%∼＋20%
Within 1.5mA
0.5MΩ
1mA 0%∼＋20%
0.100∼
200.0MΩ
50MΩ
0∼
0.099MΩ
1001∼
2000MΩ
200.1∼
2000MΩ
40.0∼
2000MΩ
20.01∼
200.0MΩ
0∼
0.099MΩ
0∼
0.099MΩ
0∼
0.099MΩ
±(2%rdg＋6dgt)
±(5%rdg＋6dgt)
Within 6dgt
50MΩ 5MΩ 5MΩ
0.100∼
200.0MΩ
0.100∼
40.0MΩ
0.100∼
20.0MΩ
0.25MΩ 0.1MΩ 0.05MΩ
50V
0∼4/40/400/2000MΩ
250V 100V
0∼4/40/200MΩ