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TREK MODEL 541A
Non-Contacting Electrostatic Voltmeter
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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.
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Key Specifications:
- 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
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Typical Applications Include:
- Semiconductor
- LCD
- Electronic assembly
- ESD-sensitive processes
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Walking Test Adapter
Optional Walking Test Adapter
kits for the Model 541A allow
analysis of charge levels
accumulated on the human body
per compliance with ANSI/ESD
STM97.2. and IEC Standard
61340-4-5.
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Features and Benefits:
- Chopper probe is DC-stable with or without incident air ion flow
- Drift-free measurements
- LCD screen displays present voltage and holds the most positive and negative values
- Visual and audible alarms activate when the preset voltage threshold levels are reached
- Voltage output monitor for remote monitoring or control
- USB and RS-232 serial ports
- NIST-traceable Certificate of Calibration provided with each unit
- CE compliant
- Optional Walking Test Adapter kits available
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