―5―
Nominalvolta
g
e
AutoRange
Opencircuit
voltage
Shortcircuit
current
Nominaltest
current
1
st
effective
measurement
range
Centerscale
range
Accuracy
2
nd
effective
measurement
range
Accuracy
Accuracyat0
KEW3023
1000V
0〜4/40/400/2000MΩ
Nominaltestvoltage0%〜+20%
Within1.5mA
1MΩ
1mA0%〜+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)
Within6dgt
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
<Operatingerror>
Operatingerror(B)isanerrorobtainedunderthenominaloperating
conditions,andcalculatedwiththeintrinsicerror(A),
whichisanerror of the instrument used, and the error (En)dueto
variations.AccordingtoIEC61557,themaximumoperating error
shouldbewithin+/-30%.
B =︱A︱+ 1.15×
√
(E
1
2
+E2
2
+E3
2
)
A:Intrinsicerror(%)
B:Operatingerror(%)
E1
: Variationduetochangingtheposition(%)
E
2: VariationduetochangingtheSupplyvoltage(%)
E3: Variationduetochangingthetemperature(%)
Nominaloperatingconditions
Ambienttemperature :0〜40℃
Relativehumidity :90%orless
Position :Horizontal〜±90゜
Batteryvoltage :withinthebatteryeffectiverange