VOLTCRAFT VC-340 Mode D'emploi page 46

Measurement tolerances
Statement of accuracy in ± (% of reading + display error in counts (= number of
smallest points)). The accuracy is valid for one year at a temperature of +23 °C
(±5 °C), and at a relative humidity of <80%, non-condensing.
Temperature coefficient at <18 °C, >28 °C: +0.2 x (specified accuracy)/1 °C.
Position error if the current probe is not centred: ±1.5% of the measuring value.
Direct current A/DC
Range
60.00 A**
300.0 A
Overload protection 600 V
DC accuracy: After DC zeroing
**A measuring deviation of up to 0.3 A by polarity reversal is possible.
***An additional measuring error of 10 counts must be added in AUTO mode.
Alternate current A/AC
Range
60.00 A
300.0 A
Overload protection 600 V
Real-time effective value measurement (True RMS) for sinusoidal current, crest
factor (CF) up to 4000 counts: 3.0.
Additional measuring error at non-sinusoidal current:
CF 1.0 - 2.0: +3%
CF >2.0 - 2.5: +5%
CF >2.5 - 3.0: +7%
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Resolution
0.01 A
0.1 A
Resolution
0.01 A
0.1 A
Accuracy
±(1.5% + 10)***
±(1.5% + 5)
Accuracy
50 - 100 Hz
<3A: +/-(1,5% +25)
≥3A: +/-(1,5% +5)
±(1.5% + 5)
Accuracy
>100 - 400 Hz
<3A: +/-(2,5% +25)
≥3A: +/-(2,5% +5)
±(2.5% + 5)