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Trek 347 Series


Non-Contacting, Economical Electrostatic Voltmeter for Surface Voltage Measurements ±3 kV DC or Peak AC

The Trek® 347 non-contacting electrostatic voltmeter provides precision and value for surface voltage measurements in the range of ±3 kV DC or peak AC. Its field-nulling technique allows you to accurately measure stationary or moving surfaces. And its patented probe design enhances noise and drift performance in the presence of contaminating particulate or under conditions of high humidity and / or wide temperature ranges.


  • Precision voltage monitor output
  • Low voltage replica of measured electrostatic potential provided for monitoring purposes or use as a feedback signal in a closed-loop system
  • Easy-to-read LED display
  • CE compliant


  • Easily use for automated or computer-controlled systems
  • Operate on a benchtop, or with optional hardware, in a standard 19-inch rack
  • Utilize Digital Enable to turn the internal HV power supply on or off from an external device
  • Improve drift and noise performance
  • Choose from a large selection of optional probes (order separately)


Betriebstemperaturbereich (°C): 0 to 40
Messbereich: 0 to ±3000 V
Messgenauigkeit (%): ±0.05%
Geschwindigkeit der Reaktion (ms): <3


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.

Technische Dokumentation


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​.

Agreement Term Options

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