Measurement example

Evaluate the efficiency of the entire system by testing the charge and discharge of the completed battery system in various operating modes and high/low temperature environments.


To understand the electrical dynamics of an xEV, test vehicles are being equipped with measuring systems that can register the energy consumption or regeneration under „real life“ circumstances. The PW3390 combined with one of the clamp-on current sensors of the CT684x series is ideal for this kind of test. The high accuracy, even at short update rate of 50 ms, and the practicality of the CT684x clamp-on sensors guarantee ease of use and accurate data even at low and high temperatures.

Equipment used

A complete high-precision power measurement system

Power Analyzer PW3390

Extremely effective for evaluating the energy performance of automobiles in accordance with the Worldwide Harmonized Light vehicles Test Procedure (WLTP).

AC/DC Current Probe CT684x

The CT684x series clamp-on current sensors combine good accuracy with the ease of use of a clamp meter.

  • ±0.3% basic Accuracy
  • Wide temperature range (-40°C to 85 °C)
  • Current range 20A to 1000A

Power Analyzer PW3390
Basic accuracy ± 0.04% rdg. ±0.05% f.s.
Input Voltage range 15V to 1500V, 7 range
Frequency band DC, 0.5Hz to 200kHz
Data update rate 50ms
Number of input channels 4
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Contact information

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