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TB-9102 Page 1 of 18
© 2020 DESCO INDUSTRIES INC
Employee Owned
SCS - 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website: StaticControl.com
WS Aware Monitor
Installation, Operation and Maintenance
August 2020
Description
The SCS WS Aware Monitor is a dual workstation
continuous monitor for operators, ESD worksurfaces
and metal tools. It continuously monitors the
path-to-ground integrity and body voltage of two
operators, as well as the path-to-ground integrity for two
conductive or dissipative worksurfaces and two metal
tools. It also continuously monitors for electromagnetic
interference (EMI) on two metal tools which may cause
electrical overstress (EOS) damage. The WS Aware
Monitor eliminates the need for periodic testing and
record keeping of wrist straps.
Made in the
United States of America
USER GUIDE TB-9102
The WS Aware Monitor is designed with digital signal
processing technology for true continuous monitoring
(versus pulsed or intermittent) of wrist strap functionality
(path-to-ground and presence of 1 megohm resistor)
and operator safety according to accepted industry
standards without capacitance variations from personnel
or environment. Digital signal processing technology
uses dual-wire wrist straps to apply an ultra-low test
voltage of 0.05V onto the operator for the handling of
sensitive components.
The WS Aware Monitor features operator body voltage
detection. It will alarm if the operator generates or
comes in contact with voltage that would be dangerous
to an ESD susceptible item.
The WS Aware Monitor continuously monitors two metal
tools for electromagnetic interference (EMI). EMI can
cause equipment lockups and malfunction. The WS
Aware Monitor will alarm if EMI is detected. Each WS
Aware Monitor is calibrated with accepted procedures
and standards traceable to the National Institute of
Standards and Technology (NIST) and includes a
certificate of calibration.
ANSI/ESD S20.20 section 7.3 states “Compliance
verification records shall be established and maintained
to provide evidence of conformity to the technical
requirements.” Per ANSI/ESD S1.1 Annex A.3 Daily
(wrist strap system) testing may be omitted if constant
monitoring used.” Per ESD Handbook ESD TR 20.20
section 5.3.2.4.4 “Typical Test programs recommend
that wrist straps that are used daily should be tested
daily. However, if the products that are being produced
are of such value that knowledge of a continuous,
reliable ground is needed, and then continuous
monitoring should be considered or even required.”
The WS Aware Monitor and its accessories are
available as the following item numbers:
Item Description
770067 WS Aware Monitor, with Standard Remotes
770068 WS Aware Monitor, with Big Brother
Remotes
770069 Power Relay, for WS Aware Monitor
770064 Power Adapter, 100-240VAC Input, 7.5
VDC 1.5A Output, All Plugs
CTE701 Workstation Monitor Checker
CTA242 Operator Remote, Standard
CTA243 Operator Remote, Big Brother
CTA245 Replacement Wrist Strap Jack PCB
770055 SMP Software
Figure 1. SCS 770067 WS Aware Monitor with Standard
Remotes
Figure 2. SCS 770068 WS Aware Monitor with Big
Brother Remotes