24
Model 21 Range (30 – 50A)
Model 23 Range (60 – 100A)
Resolution Accuracy
3, 4
0.050 – 9.999 W 0.001W ±2% of VA ± 5dgts
10.00 – 99.99 W 0.01W ±2% of VA ± 5dgts
100.0 – 999.9 W 0.1W ±2% of VA ± 5dgts
1.000 – 9.999 KW 0.001 KW ±2% of VA ± 5dgts
10.00 – 99.99 KW 0.01 KW ±2% of VA± 5dgts
100.0 – 999.9 KW 0.1 KW ±2%of VA ± 5dgts
1000 – 9999 KW 1 KW ±2% of VA ± 5dgts
3
For CT
≠
1, the accuracy in percentage is the same (±2%). But the additional
digits should be multiplied by the CT ratio.
For example, ±5 digits becomes ±5 digits * CT ratio
4
If Auto Hz is selected, the AC voltage must be greater than 50V.
Range of CT Ratio: 1 to 250
H.P. (Horse Power)
1 H.P. = 746 W
AC Apparent Power (VA, from 0.000VA to 9999 KVA)
VA = V r.m.s. x A r.m.s
AC Reactive Power (VAR, from 0.000 VAR to 9999 KVAR)
VAR =
√
(VA
2
– W
2
)
AC Active Energy (mWH, WH, or KWH, from 0 mWH to 999,999 KWH)
WH = W * Time (in hours)
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