Instruction Manual Instruction Manual

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49
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14. Specification
Measuring Range and Accuracy
<RMS accuracy>
（
AC 50/60Hz,Sine wave, Input: 10% or more of the range at CH1)
Range
KEW 8146 (30A) :100.0mA/1000mA/10.00A/30.0A
KEW 8147 (70A) :100.0mA/1000mA/10.00A/70.0A
KEW 8148 (100A) :100.0mA/1000mA/10.00A/100.0A
KEW 8121 (100A) :10.00/100.0A
KEW 8122 (500A) :50.00/500.0A
KEW 8123 (1000A) :100.0/1000A
KEW 8309 (600V) :600.0V (only 5020)
Digit number 4-digit
Effective
InputRange
0% ~ 100% of each Range
Display Range 0% ~ 105% of each Range (
“
OL
”
is displayed over 105%.)
Accuracy
100.0mA Range:
±
2.0%rdg
±
0.9%f.s. + Accuracy of Sensor
Other ranges :
±
1.5%rdg
±
0.7%f.s. + Accuracy of Sensor
Crest
Factor
2.5 or less :RMS accuracy (sine) + 2%rdg+1%f.s.
(95% or less of each Range)
<Accuracy at Trigger Recording Mode
（
AC 50/60Hz sine wave)
Accuracy
100.0mA Range:
±
3.5%rdg
±
2.2%f.s. + Accuracy of Sensor
Other ranges :
±
3.0%rdg
±
2.0%f.s. + Accuracy of Sensor
<Accuracy at Capture/ Power Quality Analysis mode>
<Accuracy of instantaneous value at Capture Recording mode>
Accuracy
100.0mA Range:
±
3.0%rdg
±
1.7%f.s. + Accuracy of Sensor
Other ranges :
±
2.5%rdg
±
1.5%f.s. + Accuracy of Sensor
NOTE:
- Refer to the Instruction Manual attached to the Sensor for the specification of each
Sensor.
- Electromagnetic compatibility(EMC)
EN61000-4-2 Electrostatic discharge immunity(ESD) / Performance criteria: B
- Max, Min and Instant Peak values in Normal Recording mode are just reference
values; their accuracies aren't guaranteed.