User guide

ManualsBrandsTrek ManualsEquipment541A Non-Contacting Electrostatic Voltmeter for EOS-ESD

Typical Applications Include

! Semiconductor

! LCD

! Electronic assembly

! ESD-sensitive processes

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.

Trek Model 541A Non-Contacting

Electrostatic Voltmeter for EOS/ESD

Key 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

TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK

716-438-7555 • 716-201-1804 (fax) • www.trekinc.com • sales@trekinc.com

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

! compliant

! Optional Walking Test Adapter kits available

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. See page 2 for details.

Summary of content (2 pages)

PAGE 1
Trek Model 541A Non-Contacting Electrostatic Voltmeter for EOS/ESD 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.
PAGE 2
Model 541A Specifications Performance Features (cont.) Menu ↑↓Buttons Measurement Ranges Model 541A-1 0 to ±1 kV DC or peak AC Model 541A-2 0 to ±100 V DC or peak AC Speed of Response (10% Less than 50 ms for a ±1 kV step (541A-1) to 90%) Less than 50 ms for a ±100 V step (541A-2) Accuracy 1% of full scale Resolution 0.