Electrostatic Voltmeter for EOS/ESD

Trek Model 541A Non-Contacting

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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