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.

Related Products & Solutions

WT5000 - Highest Precision

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

Power Analyzers and Power Meters

Measure characteristics of devices that generate, transform or consume electricity. Also called power meters or wattmeters, these devices measure parameters such as true power (watts), power factor, harmonics, and efficiency.

Precision Making

Top