WT5000 Precision Power Analyzer Error Due to Heating Typo

​WT5000 Precision Power Analyzer Error Due to Heating Typo:


WT5000 Precision Power Analyzer
The specifications for the WT5000 30A element states a self heating influence for DC current is (0.00002*I^2)% Rdg + (3*I^2)mA.
At 20 Amps that would be a floor value of 1.2A (3*20^2=1200mA).

WT3000  Precision Power Analyzer
On the WT3000  Precision Power Analyzer is (3*I^2)uA which is 1.2 mA and is a lot more reasonable.

Is this a typo in the specifications?

Answer:
This is a typo. mA is wrong, uA is correct. The document will be corrected in a future revision.

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WT5000 - Highest Precision

  • Up to 7 wattmeters / Modular
  • 0.01% of rdg + 0.02% of rng
  • DC to 1MHz
  • 4 motor inputs
  • Harmonics to 500th order
  • IEC 61000 compliance testing

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