The ±2 kV Trek Model 820 Infinitron Voltmeter may be used in either contacting or non-contacting mode to acquire precision surface voltage measurements. It is especially beneficial when used with applications that demand infinitely high loading impedance levels far beyond the reach of currently available high impedance voltmeter instruments. The Model 820 comes with a guarantee of virtually no modification of the object being measured. This allows the instrument to indicate, with high precision, the voltage level of both conductive and insulative objects and surfaces.
Voltage monitor output scale factor at 1/200
Probe electrode may be easily replaced with other sensor tips
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
Digital Enable allows an external device to turn ON/OFF the internal HV power supply
Easy-to-read LED display
Designed to be operated on a bench top
NIST-traceable Certificate of Calibration provided with each unit
CE compliant
Measurement Range 0 to ±2 kV DC or peak AC
Measurement Accuracy
Voltage Monitor Output: Better than ±0.1% of full scale
Voltage Display: Better than ±0.1% of reading, ±1 digit (referred to measured input)
Speed of Response(10% to 90%): Less than 500 μs for 1 kV step
Large Signal Bandwidth(-3 db): DC to greater than 200 Hz for 4 kV pp
Stability
Contacting - Drift with time at 22 ºC: Less than 6 V/minute, cumulative (referred to input)
Noncontacting: Better than 100 ppm/˚C
Input Resistance: Greater than 1×10E15Ω
Input Capacitance: Less than less than 10E-15F
