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Trek 875 Series


Electrostatic Voltage Sensor Designed for Inline Monitoring of Electrostatic Charge Build-Up

The Trek® 875 electrostatic voltage sensor is used to monitor static charge levels within manufacturing equipment such as conveyors, handlers, and other tools. The Trek® 875 features an automatic calibration technique to maintain high accuracy and speed over wide variations of the spacing between the non-contacting measurement probe and the surface under test. Other features include a voltage measurement range of ±500 VDC or peak AC, accuracy of ±0.5%, speed of 25 ms, and low noise of 1% rms of full-scale. Buffered output voltage and current monitors (4 to 20 mA) are provided for remote monitoring and alarm purposes. The instrument is powered by +24 VDC and is housed in a standard DIN package to enable standardized mounting.


  • Accuracy is independent of probe-to-measured surface spacing
  • 4 to 20 mA current monitor
  • Voltage monitor with an accuracy better than ±0.5% of full-scale


  • Select from two available probe types, side view and 45° angle
  • Mount the enclosure on a 35 mm DIN rail
  • Use TTL digital enable input and TTL fault warning flag output


Measurement Range: 0 to ±500 V
Measurement Accuracy (%): ±0.5%
Speed of Response (ms): <25
Communications Interface: 4 to 20 mA current loop

Technical Documentation

Title Type
Trek 875 Data Sheet (264 KB) Data Sheet


Calibration and Alignment

Advanced Energy has the tools and processes to ensure your equipment continues to meet its original specifications.  Our products are calibrated at global AE service sites with proprietary technology designed to exceed industry standards​.

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