may do dien ap tinh dien trek 542a

• Measurement Range:
  • Model 542A-1:
  • Model 542A-2:
• Measurement Accuracy:
  •  
  • Model 542A-1:
  • Model 542A-2:
• Alphanumeric LCD Display:

•   
  ±10 kV DC or peak AC
  ±20 kV DC or peak AC
  Better than ±5% of the reading ±0.2% of full
  scale over a probe-to-surface separation of
•    15 mm to 30 mm
     30 mm to 60 mm
• 20 x 4 characters

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.