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Monitoring electrostatic charge build-up

08 October 2008

Trek Inc, has introduced a electrostatic voltage sensor (Trek Model 875), designed for in-line monitoring of electrostatic charge build-up. Manufacturers of electrostatic-sensitive devices can monitor manufacturing processes in real time, thereby enabling process adjustments to be made that will improve production yields and product integrity.

In-line monitoring of electrostatic charge build-up

Model 875 features a measurement probe with automatic calibration technology which enhances the utility of the sensor by maintaining high accuracy and speed, even as the distance between the non-contacting probe and the monitored surface changes, unlike other measurement technologies which require fixed-probe-to-surface spacing.

Designed with DIN packaging, the sensor’s enclosure mounts on 35mm DIN Rail. Other features include a voltage measurement range of +/- 500 V DC or peak AC, accuracy of +/- 0.5%, speed of 25 ms, and low noise of 2.5% of full scale. Buffered output voltage and current monitors (4 to 20 mA) are provided for remote monitoring and alarm purposes. The unit is powered by +24 V DC.