| Item | Specifications | ||
|---|---|---|---|
| Measurement range | Resolution | 150 V | 0.01 V |
| 300 V | 0.01 V | ||
| Allowable crest factor | 3 | ||
| Accuracy*1 *2 | Effective input range | Full range | 1 % to 120 % of the range |
| 45 Hz ≦ f ≦ 66 Hz, LPF: On or off | ±（0.1 % of reading + 0.1 % of range） | ||
| 66 Hz < f ≦ 400 Hz, LPF: Off | ±（0.1 % of reading + 0.2 % of range） | ||
| 400 Hz < f ≦ 1 kHz、LPF:OFF | ±（0.1 % of reading + 0.2 % of range） | ||
| 1 kHz < f ≦ 5 kHz LPF:OFF | ±（ 3 % 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 conditions | 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 overrange is not occurring | ||
*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 reading + 3.1 % of range)
