Trek 325 | Advanced Energy
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Trek 325


High Sensitivity, DC Stable Electrostatic Voltmeter, Measures 0 to ±40 V

The Trek® 325 was specifically designed for high sensitivity applications. It enables highly accurate, low noise, non-contacting measurement of electrostatic voltages of 0 to ±40 V over a wide range of probe-to-surface distances. A dual-range front panel 3.5-digit LED display resolves ±10 mV.  And you can monitor the measured voltage through a precision 1:1 voltage monitor output and/or a 10:1 voltage monitor output. 


  • Sensitivity: 1 mV
  • Null Voltage Source: 0 to ±10 V calibrated supply 
  • Drift/spacing null adjustment
  • Response speed control
  • Voltage monitor output


  • Utilize low impedance probe sensor that assures high accuracy in high humidity and contaminated environments (e.g. airborne dust, toner, ions, and chemicals)
  • Minimize variation in monitored voltage values as the probe-to-test surface spacing changes
  • Operate or, with optional hardware, in a half 9.5-inch or standard 19-inch rack
  • Benefit from speed control that adjusts the Trek 325's AC response


Betriebstemperaturbereich (°C): 0 to 40
Messbereich: 0 to ±40 V
Messgenauigkeit (%): ±0.05%
Geschwindigkeit der Reaktion (ms): <3, <5

Technische Dokumentation


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.


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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