1 Channel application

• Random quick test on single workstations with regard to impedance and temperature behavior incl. cell voltage measurement
• Visualization of all measurement parameters, measurement results and evaluations
• Measurement data acquisition via fieldbus and/or USB

TASK

Battery cells with a relatively high internal resistance can generate more heat; chemical processes can accelerate the capacitance reduction and the internal resistance increases. The resistance can change due to transport or handling movements. In order to ensure that there is consistent quality in the assembly of power tools and the integration of the batteries, test objects are taken at random at individual workplaces and subjected to a quick test with regard to impedance and temperature behaviour, including a cell voltage measurement.

Measuring and evaluation parameters
U_cell .................... ≈ 0 … 18.2 to 18.8 VDC
R_AC (1 kHz) ....... ≈ 23.50 … 24.88 mΩ
R_DC (10 Hz) ....... ≈ 24.71 mΩ
ϑ ........................ ≈ 20 … 29 °C