Measure the charge and discharge current with high accuracy. With this test you ensure not only that your module or pack has the desired charge and discharge capacity, but you can also verify that the BMS control is working correctly.
With this set up you can measure the battery capacity by integrating the charge and discharge currents. Using a high precision current sensor and power analyzer, it is possible to check the detailed charge/discharge control profile by BMS.
The PW6001 combined with the CT6904 current sensor provides the most accurate solution available for high DC voltage and high DC current measurement. One important factor for this performance is the extremely high Common Mode Rejection Ratio (CMRR) of the CT6904. This guarantees that high frequency noise generated by the switching power supply will not have any influence on the accuracy of the measurement. The high accuracy, even at a short update rate of 10 ms, will deliver excellent information to determine the capacity of powerful battery packs.
HIOKI Power Analyzer PW6001
High accuracy and sampling rate of 5 MS/s in combination with the 18-bit measurement resolution enable to detect very quick and small changes in power demand during charge/discharge tests.
HIOKI AC/DC Current Sensor CT6904
|Power Analyzer PW6001|
|Base accuracy||± 0.02% rdg.|
|Input Voltage range||6V to 1500V, 8 range|
|Waveform recording||Always 5 MS/s with 18-bit A/D converter|
|Data update rate||10ms / 50ms / 200ms|
|Number of input channels||Max. 6|