The Trek Model 542A Electrostatic Voltmeter (pictured with the Model 542P-S probe) provides accurate noncontacting measurements of the electrostatic surface voltage associated with EOS/ESD processes. The instrument is configured with a miniature electrostatic field chopper probe that can be remotely located and easily positioned within process equipment to provide highly accurate, non-contacting, DC-stable, spacing-independent voltage measurements in either ionized or non-ionized environments. A 20x4 alphanumeric LCD screen displays the present measured voltage, the positive peak voltage value, the negative peak voltage value and additional menu information.
Chopper probe is DC-stable with or without incident air flow
Drift-free measurements
LCD screen displays present voltage and holds the most positive and negative values
Visual and audible alarms activate when the preset voltage threshold levels are reached
Analog voltage monitor output
USB and RS-232 serial ports
NIST-traceable Certificate of Calibration provided with each unit
Optional Walking Test Adapter Kit available