Electrostatic Products

Trek Infinitron 820

Contacting or Non-Contacting High Impedance Voltmeter

Advanced Energy’s Trek Infinitron 820 electrostatic voltmeter is optimal for applications demanding infinitely high loading impedance levels.

  • Measurement Range: 0 to ±2 kV DC or peak AC
  • Measurement Accuracy: Better than 0.1% of full-scale (voltage monitor output)
  • Speed of Response: Less than 500 µs for a 1 kV input step
  • Input Characteristics:
    • Resistance greater than 1 x 1015Ω
    • Capacitance less than 1 x 10-15F
  • Overview
  • Technical Specs
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The ±2 kV Trek® Infinitron® 820 voltmeter can be used in contacting or non-contacting mode to acquire precision surface voltage measurements. Virtually no object or surface modifications are required. This allows the Trek Infinitron 820 to precisely indicate the voltage level of both conductive and insulative objects and surfaces.




  • Use low voltage replica of the measured electrostatic potential for monitoring purposes or as a feedback signal in a closed-loop system
  • Use in either contacting or non-contacting mode
  • Easily replace the probe electrode with other sensor tips
  • Turn internal HV power supply on or off via external device
  • Quickly and easily transfer data via USB port


  • Voltage monitor output scale factor at 1/200
  • NIST-traceable calibration certificate provided with each unit
  • Easy-to-read LED display
  • On-benchtop design
  • Reset button

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

  • Performance

    Measurement Range

    0 to ±2 kV DC or peak AC

    Measurement Accuracy

    • Voltage Monitor Output: Better than ±0.1% of full-scale
    • Voltage Display: Better than ±0.1% of reading, ±1 digit (referred to measured input)

    Speed of Response (10 to 90%)

    Less than 500 µs for 1 kV step

    Input Characteristics

    • Resistance greater than 1 x 1015Ω
    • Capacitance less than 1 x 10-15F
  • Voltage Monitor


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


    1/200th (standard)

    Output Current

    ±5 mA (minimum)

  • Front Panel Meter

    Voltage Display

    3.5-digit LED display


    0 to ±1.9 kV


    1 V

  • Mechanical

    H x W x D

    10.2 x 22.9 x 33 cm (4 x 9 x 13 in)


    1.8 kg (4 lb)

  • Electrical

    AC Line Cord Receptacle

    A universal line PFC-type wall cube provides input power to the ESVM

    Line Voltage

    24 VDC, ±5% @ 1 A

    DC Connector

    2.1 mm DC power plug

  • Typical Applications

    Accurate reading of electrostatic voltage levels associated with ESD sensitive components, circuits, and surfaces

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.


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Trek Graph Trek Software

Graph Trek Software for the Trek 820 voltmeter

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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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