23
VI. SPECIFICATIONS (23°C±5°C)
AC Watt (50 or 60 Hz, PF 0.6 to 1. CT = 1, Voltage is greater than AC 4V, Current is
greater than AC 1mA for mA range, and Current is greater than AC 0.04A for A
range. Specification applies to continuous waveforms)
Model 21
Range (0 to 30A) Resolution Accuracy of Readings
1, 2
0.050 – 9.999 W 0.001W ±2% ± 0.025W
10.00 – 99.99 W 0.01W ±2% ± 0.25W
100.0 – 999.9 W 0.1W ±2% ± 2.5W
1.000 – 9.999 KW 0.001 KW ±2% ± 0.025KW
10.00 – 99.99 KW 0.01 KW ±2% ± 0.25KW
100.0 – 999.9 KW 0.1 KW ±2% ± 2.5KW
1000 – 9999 KW 1 KW ±2% ± 25KW
Model 23
Range (0 to 60A) Resolution Accuracy of Readings
1, 2
0.050 – 9.999 W 0.001W ±2% ± 0.025W
10.00 – 99.99 W 0.01W ±2% ± 0.25W
100.0 – 999.9 W 0.1W ±2% ± 2.5W
1.000 – 9.999 KW 0.001 KW ±2% ± 0.025KW
10.00 – 99.99 KW 0.01 KW ±2% ± 0.25KW
100.0 – 999.9 KW 0.1 KW ±2% ± 2.5KW
1000 – 9999 KW 1 KW ±2% ± 25KW
1
For CT
≠
1, the accuracy in percentage is the same (±2%). But the additional
wattage should be multiplied by the CT ratio.
For example, ±0.025W becomes ±0.025W * CT ratio
2
If Auto Hz is selected, the AC voltage must be greater than 50V, and add
2°
phase angle error to the accuracy.
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