Electrostatic voltage sensor

Trek has introduced an electrostatic voltage sensor (model 875), designed for inline monitoring of electrostatic charge build-up, which if left unchecked would disrupt manufacturing processes and/or cause product degradation and early life failure of semiconductors and other charge-sensitive components.

Manufacturers can monitor production lines and other manufacturing processes in real time. Applications include use in semiconductor manufacturing as well as other charge-sensitive processes, such as those found in electronics and other devices, including sensitive medical electronics, microelectronics, LCDs, hard disk drives, microelectronic mechanical systems and in various sectors of the electronic manufacturing services industry.

The device has a measurement probe with automatic calibration 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.

Designed with DIN packaging, the sensor’s enclosure mounts on a 35 mm DIN rail. Other features include a voltage measurement range of ±500 DC or peak AC, accuracy of ±0.5%, speed of 25 ms and noise of 2.5% of full scale.

Buffered output voltage and current monitors (4–20 mA) are provided for remote monitoring and alarm purposes. The unit is powered by 24 VDC.