Kikusui IB022853, User Manual

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KPM1000 Specifications
39
Voltage measurement feature
Item Specification
Measurement range Resolution
150 V 0.01 V
300 V 0.01 V
Allowable crest factor 3
Accuracy
1
,
2
1 Under the following conditions: within the effective input range, within six months after the last calibration,
at a temperature of 23 °C ± 5 °C, sine wave, power factor of 1, and common mode voltage of 0 V.
If the waveform is asymmetrical (waveforms such as half-wave rectified waveforms and full-wave rectified
waveforms), errors will occur.
2 The peak voltage accuracy is defined for a sine wave whose frequency is between 45 Hz and 66 Hz. Accuracy:
± (0.1 % of r 3.1 % of range)
Effective input
range
Full range
1 % to 120 % of the range
45 Hz ≤ f ≤ 66 Hz,
LPF: On or off
±(0.1 % of r 0.1 % of range)
66 Hz < f ≤ 400
Hz, LPF: Off
±(0.1 % of r 0.2 % of range)
400 Hz < f ≤ 1
kHz, LPF: Off
±(0.1 % of r 0.2 % of range)
1 kHz < f ≤ 5 kHz
LPF: Off
±(3 % of range)
Residual noise
With the inputs
shorted
LPF: On or off
0.5 % of range
One-year accuracy (accuracy up to 12 months after calibration)
1.5 times the reading errors for the accuracy
at 6 months
Auto range
UP condition
When the value exceeds 120 % of the range
or when a peak over-range occurs
DOWN condition
When the value is less than 30 % of the
range, the value is less than or equal to 90 %
of the next lower range, and a peak over-
range is not occurring