Washing machine Evaluation using D/A output (for WT310E)

Overview

• Test items: In the test of new washing machine, voltage, current, power, and the control signal on the time control panel need to be recorded.
• Test requirement:
  • High sampling rate of data acquisition to record the motor controlling signal.
  • Measurement of high voltage and the power changes at the time of motor startup.
• Solutions: The oscilloscope only has a few test channels and ordinary data acquisition unit can't acquire high voltage signals. Use the combination of WT310E + MX100 to fulfill the function.

Points of application

1. MX100 uses high-speed channel modules to record the controlling signal at sampling rate of 10ms.
2. WT310E is used to record the power at motor startup. The high-voltage signal and power signal are converted to low-voltage signals through the D/A output, which are then recorded by MX100.

Features

• The D/A output of WT310E enables analog output of the power signal, making it possible to record power waveform by data acquisition device.
• The high-speed channel of MX100 realizes recording of high-speed controlling signals, and can withstand high voltage during live line measurement.