Electrostatic Voltmeter

Trek, Inc.rek Model 542 Electrostatic Voltmeter provides noncontacting measurements of electrostatic surface voltage associated with EOS/ESD sensitive processes. The micoprocessor-based unit is suited to monitor critical operations associated with semiconductor, LCD, electronic assembly, and other processes where static charge accumulation poses a threat to production yields or product quality.

The device uses a DC stable electrostatic field chopper probe which can be remotely located and positioned within process equipment to provide drift-free, noncontacting, spacing independent, voltage measurements in either ionized or non-ionized environments. Two probe types are available, a side viewing probe and probe with a 45° angle.

A 20 x 4 alphanumeric LCD screen displays the present measured voltage, the positive peak voltage value, the negative peak voltage value, and additional menu information. The device has a voltage detection and measurement range of 0 to +/-10kV. Over a probe to surface separation distance of 15 to 30 mm, the unit has a 5% reading accuracy, +/-20V. The device includes independently programmable plus and minus voltage threshold/alarm limits. Audible and visible alarms indicate the detection of surface voltages which meet or exceed the programmed limits.

<%=company%>, 11601 Maple Ridge Rd, Medina, NY 14103. Tel: 716-798-3140; Fax: 716-798-3106.