This instrument is a model 279 ISOPROBE® Electrostatic Voltmeter with its measurement range reduced to ±300 volts. This change improves the voltage resolution and noise performance for measurements below ±300 volts, and optimizes arc safety for sensitive measurements.
Features：
Disk Media Research
IC Manufacturing and Handling
Contact Potential Measurements
Radiation Effects on Insulators and Semiconductors
Bioelectric Field Studies
Uses Model 1034 series probe
MEASUREMENT RANGE：0~±300V
Resolution:100mV
SPEED OF RESPONSE 10% TO 90%：Less Than 3ms
Accuracy：0.1%
Probe Dimensions:9 mm x 9 mm x 73 mm
Probe Cable Length:3m
Drift:less than 10mV/h
Size:44*208*384mm
Weight: 1.8kg
Power：100/115/230VAC, ±10%, 50/60Hz
