Calibration is done by comparison to a Certified (NATA endorsed Report) meter in accordance with PCWI Reference Document LWI 27.
Uncertainty of Measurement
- AC AMPS (50Hz): +/- 1%+10 digits
- DC AMPS : +/- 0.25%
- AC VOLTS (50Hz): +/- 0.33%
- DC VOLTS: +/- 0.33%
- RESISTANCE: +/- 2% + 2 digits
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