Trek 901HS ESD Event Detector - Manual

Model 901HS High Sensitivity
ESD Event Detector
Electrostatic discharge (ESD) events are important indicators of
excessive charge accumulation in environments where they may be
detrimental to manufacturing processes in the semiconductor or LCD
industries.
Trek’s Model 901HS is a diagnostic tool used to identify
incidents or verify suspected areas of ESD activity.
Electromagnetic waves, generated by electrostatic discharge,
transmit differently in different environments. In order to
accommodate these differences, the Model 901HS includes two
antennas - one active and one passive - that can be used for
detection purposes. The determination of which antenna to use
will typically be based on the environment in which it’s being
deployed and the level of detection that is required.
The active antenna may be connected directly to the Model
901HS or with an extension cable that lengthens the antenna to
1.5 meters. It provides high flexibility in positioning the antenna to
achieve the best possible reception. The active antenna can
detect ESD events as small as 10 V, at a distance of 50 mm. A
passive, monopole antenna is also provided. This antenna has a
detection capability that identifies ESD events as small as 50 V, at
a distance of 90 mm and is generally used when less sensitive
detection is required.
When an ESD event is detected, the Model 901 signals the
operator by playing an audible notification tone and by displaying
the detected event level visually via its five LED lights. Since
measurement results will vary due to the distance from the signal
source and whether there are physical obstacles present in the
environment, the LED display indicates a relative signal strength
rather than an actual signal strength. A stereo connector on the
Model 901 enables connection to an optional external display
device to display the measurement results.
!
Sensitive to ESD
voltage levels as low
as 10 V at 50 mm
! Suitable for CDM
(Charge Device Model)
!
Two antennas provide
high sensitivity in
detecting electrostatic
discharge events
!
F ive LED indicators or
an external display
indicate the detection
of ESD events
!
An audible alert
indicates ESD events
!
Automatic or manual
reset control
!
AC or Battery
operated, compact,
and portable
Copyright Ó 2012 TREK, INC.
All specifications are subject
to change. 1202/DEC
Measurement and Power Solutions
TM
www.trekinc.com