The fabric is serious or not charged to a high voltage discharge after static voltage level, on the other hand, and the static voltage keeping time. The electrostatic runaway speed of fabric is expressed by electrostatic half life, and it is an important test index for testing the electrostatic properties of fabrics.

The instrument is composed of two parts, the host computer and the automatic control box, which can be tested by the timing method and the constant pressure method respectively. The instrument uses digital voltmeter to directly display the instantaneous peak value and half life value of the fabric during the high voltage discharge. Automatic shut down high voltage, automatic shut down motor, easy to operate.