LCD voltmeter 341B

digitalportableDC

The Trek Model 341B is a DC-stable, precision electrostatic voltmeter for making noncontacting surface voltage measurements. The 341B employs a field-nulling technique that achieves DC stability and high accuracy even if the probe-to-surface spacing changes. This permits measurements of either stationary or moving surfaces without the need to establish fixed spacing to maintain accuracy. The instrument also utilizes a patented probe design that eliminates the need for close tolerance components which significantly improves noise and drift under conditions of high humidity and wide temperature ranges. Key Specifications Measurement Range: 0 to ±20 kV DC or peak AC Measurement Accuracy: Better than ±0.1% of full scale Speed of Response: Less than 200 µs for a 1 kV step Typical Applications Include Charge accumultion monitoring of LCD production processes Monitoring surface potentials in the electrostatic painting process Measuring of electrostatic potentials on polymers, rubber, fabrics and paper Features and Benefits 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 Easy-to-read LED display Optional probes offer versatility (order separately) Can be operated on a bench top, or with optional hardware, in a standard 19-inch rack NIST-traceable Certificate of Calibration provided with each unit