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Products > ESD > Electrostatic Voltmeters for ESD
Model 876 & 884 HAND-HELD Electrostatic Voltmeter
The Trek Models 876 and 884 Hand-Held Electrostatic Voltmeters provide accurate, noncontacting measurements of electrostatic surface voltage for ESD applications in either ionized or non-ionized environments. Industrial applications include measuring charge accumulation in the LCD manufacturing process or measuring static charge in semiconductor production. The Models 876 and 884 electrostatic voltmeters utilize a new measurement technique that overcomes the disadvantage of the typical hand-held fieldmeter by providing surface voltage measurements which are essentially independent of the sensor probe to measured surface spacing.
Model P0876A (0 to ±2 kV DC)
Over a spacing range of 5 mm to 25 mm, the P0876A voltmeter provides better than a 5% voltage measurement accuracy, while the typical fieldmeter provides a voltage measurement error in excess of 50%.
Model 884 (0 to ±20 kV DC)
Over a spacing range of 30 mm to 60 mm, the 884 voltmeter provides greater than a 5% voltage measurement accuracy, while the typical fieldmeter provides a voltage measurement error in excess of 50%.
The Models 876 and 884 hand-held voltmeters employ an efficient and compact sensor probe design. The probe design allows for higher spatial resolution capability by allowing the measurement of small surface areas. The probe is attached to the meter with 6 feet of cable length. The length of cable provides the flexibility to make measurements in many locations that are impossible to reach using the large bulky sensing surfaces of the typical hand-held fieldmeter. A "hold" push button retains the displayed measured voltage value for recording purposes. The Models 876 and 884 provide a measurement system with calibration traceable to the National Institute of Standards and Technology.
PERFORMANCEModel 876Measurement Range Accuracy Model 884
ACCESSORIESAccessories Supplied
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PRODUCT FEATURESModel 876Hold Power On/Off Probe Cable Length Model 884Hold Power On/Off Probe Cable Length |
GENERALModel 876Dimensions Power Requirements Model 884
CERTIFICATIONTREK, INC. certifies that each Model 876 and Model 884 are tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or to consensus standards. Pollution Category All specifications are subject to change.
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