― 5 ―
Nominal voltage
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
KEW3023
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
0.1MΩ
500V
250V
100V
0〜4/40/200MΩ
<Operating error>
Operating error (B) is an error obtained under the nominal operating
conditions, and calculated with the intrinsic error (A),
which is an error of the instrument used, and the error (En) due to
variations. According to IEC61557, the maximum operating error
should be /-30%.
Ｂ ＝︱Ａ︱＋ 1.15 × √
（ Ｅ
1
2
＋ Ｅ
2
2
＋ Ｅ
3
2
）
Ａ ： Intrinsic error（％）
Ｂ ： Operating error（％）
Ｅ
1
： Variation due to changing the position（％）
Ｅ
2
： Variation due to changing the Supply voltage（％）
Ｅ
3
： Variation due to changing the temperature（％）
Nominal operating conditions
Ambient temperature
: 0〜40℃
Relative humidity
: 90% or less
Position
: Horizontal〜±90゜
Battery voltage
: within the battery effective range
