The Trek Model 541A Electrostatic Voltmeter (pictured at left with the Model 541PR-S probe) provides accurate non-contacting 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, the negative peak voltage and additional menu information.
Typical Applications Include :
- Semiconductor
- LCD
- Electronic Assembly
- ESD-Sensitive Process
Specifications:
| Measurement Range | |
| Model 541A-1 : | ±1 kV DC or peak AC |
| Model 541A-2 : | ±100 V DC or peak AC |
| Measurement Accuracy : | Better than ±1% of full scale over a probe-to-surface separation of 2.5 mm ± 1mm |
| Alphanumeric LCD Display : | 20 x 4 characters |
