Infinitron® Ultra-High Impedance Voltmeters

Infinitron® Technology

Trek's Infinitron line offers a breakthrough in the world of electrostatic voltmeters. This ultra-high impedance contacting voltmeter technology makes it possible to do highly accurate contacting measurements with virtually no charge transfer. This contrasts with other contacting measurement technologies that transfer charge upon contact, thereby compromising the electrical condition of the surface being measured.

The ability to accurately measure a very small area, using the Infinitron® and its contacting probe, results in very high spatial resolution measurement capability. This is a significant advantage over other measurement instruments which are limited by the inherent characteristics of non-contacting measurement technology.

The Infinitron® models may also be used in noncontacting mode.

Model 821HH

Resistance
Greater than 1 x 1014 Ω

Capacitance     
Less than 1 x 10-14 F

Measurement Range     
0 to ±2 kV DC or peak AC

Speed of Response (10% to 90%)
Less than 500 µs for a 1 kV step

Accuracy:
Better than ±1% of full scale


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Model 820

Resistance
Greater than 1 x 1015 Ω

Capacitance     
Less than 1 x 10-15 F

Measurement Range     
0 to ±2 kV DC or peak AC

Speed of Response (10% to 90%)
Less than 500 µs for a 1 kV step

Accuracy:
Better than ±0.1% of full scale


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Model 800

Resistance
Greater than 1 x 1016 Ω

Capacitance     
Less than 1 x 10-15 F

Measurement Range     
0 to 100 V DC or peak AC

Speed of Response (10% to 90%)

Less than 3.5 ms for a 100 V step

Accuracy:
Better than ±0.1% of full scale


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