Trek 347 Series

The Trek® 347 non-contacting electrostatic voltmeter provides precise surface voltage measurements in the range of ±3 kVDC or peak AC. The Trek 347 utilizes a field-nulling technique for non-contacting voltage measurement that achieves DC stability and high accuracy, with no need for fixed probe-to-surface spacing. This permits the accurate measuring of stationary or moving surfaces. 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.

PRODUCT HIGHLIGHTS

• Superb noise and drift performance
• Precision voltage monitor output
• Monitor provides a low voltage replica of the measured electrostatic potential for monitoring purposes or for use as a feedback signal in a closed loop system
• Digitalenable allows an external device to turn the internal HV power supply on/off
• Well suited for automated or computer-controlled systems
• Easy-to-read LED display
• Large selection of optional probes offer versatility (order separately)
• Operated on a bench top, or with optional hardware, in a standard 19-inch rack
• NIST-traceable Certificate of Calibration provided with each unit

APPLICATIONS

• Surface voltage measurements of photoconductors or dielectric surfaces
• Charge monitoring in semiconductor production
• Measuring of electrostatic potentials on film, polymers, and papeR

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