Non-Contacting Electrostatic Voltmeter for EOS and ESD Processes

Advanced Energy’s Trek 542A provides accurate electrostatic surface measurements. Typical uses include semiconductor, LCD, electronic assembly, and ESD-sensitive applications. 

• Measurement Range: ±20 kV DC or peak AC
• Measurement Accuracy: Better than ±5% of the reading ±0.2% of full-scale over a probe-to-surface separation of 15 to 60 mm
• Alphanumeric LCD Display: 20 x 4 characters

*Specifications dependent on model

Overview

The Trek® 542A electrostatic voltmeter (pictured with the Model 542P-S probe) is configured with a miniature electrostatic field chopper probe. The probe 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. The unit’s 20 x 4 alphanumeric LCD screen displays the present measured voltage, positive and negative peak voltage values, and additional menu information.

Benefits

• Enable drift-free measurements
• Benefit from visual and audible alarms that activate when preset voltage-threshold levels are reached
• Remotely locate or easily position miniature field chopper probe
• Use in ionized or non-ionized environments
• Take spacing-independent voltage measurements

 

 

 

Features

• Chopper probe is DC-stable with or without incident airflow
• Analog voltage monitor output
• USB and RS-232 serial ports
• NIST-traceable calibration certificate provided with each unit
• Walking test adapter kit available

• Performance

  Measurement Ranges

   

  • 542A-1: 0 to ±10 kV DC or peak AC
  • 542A-2: 0 to ±20 kV DC or peak AC

   

  Speed of Response (10 to 90%)

   

  Less than 50 ms for a ±1 kV step

   

  Accuracy

   

  Better than ±5% of the reading ±0.2% of full-scale over a probe-to-surface separation of:

  • 542A-1: 15 mm to 30 mm
  • 542A-2: 30 mm to 60 mm

   

  Drift with Time

   

  Less than ±1% full scale, non-cumulative

• Mechanical

  H x W x D

   

  97 x 152  x 204 (3.8 x 6 x 8)

   

  Weight

   

  0.77 kg (1.7 lb)

• Operating Conditions

  Temperature

   

  15 to 35°C (59 to 95°F)

   

  Relative Humidity

   

  5 to 85% relative humidity, non-condensing

   

  Altitude

   

  To 2000 m (6561.68 ft)

• Typical Applications

  • Semiconductor
  • LCD
  • Electronic assembly
  • ESD-sensitive processes