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Catalog excerpts
![821HH Hand-Held Infinitron® ESVM - 1](https://img.directindustry.com/pdf/repository_di/72064/821hh-hand-held-infinitron-esvm-772175_1m.jpg)
Hand-Held Electrostatic Voltmeter Trek’s Model 821HH Infinitron® Hand-Held Electrostatic Voltmeter represents the next generation of contacting precision surface voltage measuring instruments, providing input characteristics far beyond the limits of any currently available hand-held voltmeter product. The Model 821HH can easily measure the voltage level of both conductive and insulative objects and surfaces with virtually zero charge transfer to the measurement probe. This results in stable high accuracy voltage measurement capability for ESD-sensitive devices. 0 to ±2 kV DC or peak AC Better than 1% of full scale, ±1 digit Resistance greater than 1 x 1014 W Capacitance less than 1 x 10-14 F Scale factor at 1/1000 Key Specifications . Measurement Range: . Voltage Display Accuracy . Input Characteristics: . Voltage Monitor Output: Typical Applications Include • Semiconductors . LEDs • MR head sensors • Other ESD sensitive devices Features and Benefits • Probe tip assumes the voltage level of the measured object's surface as the tip approaches resulting in no current flow at the time of contact. • Battery or line operation • Easy to read LCD display • Records voltage, temperature and humidity with included sensor • Data graphing capabilities • NIST-traceable Certificate of Calibration provided with each unit • ££ compliant TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK 716-438-7555 • 716-201-1804 (fax) • www.trekinc.com • sales@t
Open the catalog to page 1![821HH Hand-Held Infinitron® ESVM - 2](https://img.directindustry.com/pdf/repository_di/72064/821hh-hand-held-infinitron-esvm-772175_2m.jpg)
Performance Measurement Range 0 to ±2 kV DC or peak AC At the Voltage Better than ±1% of full scale Monitor Output At the Voltage Better than ±1% of full scale, ±1 digit Bandwidth (-3 dB) 1000 V p-p sine wave: better than 700 Hz Input Characteristics Resistance greater than 1 x 1014W Capacitance less than 1 x 10-14 F Current less than 1 x 10-14 A Stability Drift with Less than 2 V/second Time (probe in free air) USB Data Rate 300 ms Displayed Information Voltage 0 to ±2000 V with a resolution of 1 V Zero Offset Battery Status Time / Date Temperature Maximum and Maximum...
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