Electrostatic Products

Trek P0865

High-Sensitivity, DC Stable, Precision Electrostatic Voltmeter

Advanced Energy's Trek P0865 electrostatic voltmeter is ideal for making non-contacting surface voltage measurements in the range of 0 to ±10 kV DC or peak AC. It features a field-nulling technique that enables high DC stability and accuracy.

  • Response Time: Less than 200 ms for a 1 kV step
  • Measurement Range:  ±10 kV DC or peak AC
  • Measurement Accuracy: Better than ±0.1% of full-scale
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The Trek®  P0865 employs a field-nulling technique for non-contacting voltage measurement. It achieves DC stability and high accuracy even if the probe-to-surface spacing changes. This permits accurate measurements of either stationary or moving surfaces without the need for fixed spacing. 

A precision voltage monitor provides a low-voltage replica of the measured electrostatic potential for monitoring, or use as a feedback signal in a closed-loop system. And probe assembly includes a sensitive electrode and preamplifier, which is driven to the same potential as the measured value to eliminate arcing therebetween. A three-meter cable permits remote probe positioning. 


  • Utilize patented probe design to eliminate the need for close tolerance components
  • Improve noise and drift performance
  • Operate on a benchtop, or, with optional hardware, in a standard 19-inch rack
  • Use for various research and industrial applications
  • Accurately measure stationary or moving surfaces


  • Precision voltage monitor output
  • Zero control for offset nulling
  • Easy-to-read LED display
  • High temperature probes available
  • Field nulling technique

Select specifications are shown below. Please see product data sheet for additional specifications.

  • Performance

    Measurement Range

    0 to ±10 kV DC or peak AC

    Measurement Accuracy

    Better than ±0.1% of full-scale (as referred to the voltage monitor)

    Speed of Response (10% to 90%)

    Less than 200 ms for a 1 kV step change. Less than 5 ms for a 20 kV step change

  • Voltage Monitor


    A BNC output provides a low-voltage replica of the measured voltage


    1/1000th of the measured voltage

    Output Impedance

    Less than 0.1Ω

  • Front Panel Meter

    Voltage Display

    4.5 digit LED display


    0 to ±10,000 V


    1 V

  • Mechanical

    H x W x D

    134 x 432 x 432 mm (5.25 x 17 x 17 in)


    15 kg (33 lb)

  • Electrical

    AC Line Cord Receptacle

    Standard three-prong line cord receptacle with an integral fuse holder

    Line Voltage

    Factory set for one of three nominal AC line voltages: 100 V, 115 V, or
    230 VAC (CE compliant), at 48 to 63 Hz (specify when ordering)

  • Typical Applications

    • Charge accumulation monitoring of the LCD production processes
    • Monitoring surface potentials in the electrostatic painting process
    • Research and development in the electrophotographic process
    • Measuring electrostatic potentials on polymers, rubber, fabrics, and paper

Specifications are subject to change without notice. Not all options and accessories are available for all models and configurations. Dimensions listed generally refer to standard configurations and module bodies only. Please confirm technical specifications and customizations with a sales representative. Advanced Energy is not responsible for errors or omissions.

Data Sheets


Non-Contacting Voltmeter Prober | Advanced Energy

Trek Non-Contacting Voltmeter Probes

We offer an assortment of probes with multiple views, shapes, and aperture sizes available. You can also choose from high temperature and resolution probes for extreme temperatures and critical measurements.

Documents & Support

View All Trek P0865 Accessories

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Product Support

U.S.: +1 800 446 9167
Asia: +86 29 8874 1895
China: 400 8899 130
EMEA: +44 800 032 1546
U.K.: 08000 321 546

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