TB-9036
Page 1 of 4
© 2015 DESCO INDUSTRIES, INC.
Employee Owned
Constant Monitor
Installation, Operation and Maintenance
December 2015
USER GUIDE TB-9036
Description
SCS Constant Monitors meet the Continuous Monitor
requirements of ANSI/ESD S20.20. “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.” (ESD Handbook ESD TR20.20 Wrist
Strap section 5.3.2.4.4 Test Frequency)
•
Monitors can check up to two wrist strap systems
and one worksurface, depending on the model.
• Compatible with single-wire wrist straps.
• Easy to use: Simply plug in the wrist strap.
• Easy to install: Attach the monitor boxes to the
bench with included hardware, connect the mat and
plug it in.
Damage to electronic devices is caused by static
electricity from people. Connecting people to ground
directs static electricity away from devices. Constant
Monitors are designed to constantly test the connection
of the person, the wristband and the coiled cord to help
ensure that people remain grounded.
Constant Monitor
WSMONITOR1 uses a solid state
impedance design to constantly test the connection
integrity of the entire ground system including the
person, the wristband and the coiled cord. Constant
Monitors WSMONITOR2 and WSMONITOR3 also
provide worksurface monitoring. This system is fully
automatic and activates when a wrist strap is plugged
into the unit. A green light indicates connection and a
red light indicates there is no connection. The unit is
powered and grounded by the AC adapter.
The Constant Monitor is available in six models:
Item
Operator(s) Mat(s)
Power
Adapter
Input
1
0
120VAC
1
0
230VAC
1
1
120VAC
1
1
230VAC
2
1
120VAC
2
1
230VAC
Packaging
WSMONITOR1 & WSMONITOR1-230VAC
1 WSMONITOR1 Constant Monitor
1 Power Adapter
2 Screws
1 Hook and Loop Fasteners
1 Certificate of Calibration
WSMONITOR2 & WSMONITOR2-230VAC
1 WSMONITOR2 Constant Monitor
1 Mat Monitor Cord
1 Power Adapter
1 STACKJACK
1 Alligator Clip
2 Screws
2 Hook and Loop Fasteners
1 Certificate of Calibration
WSMONITOR3 & WSMONITOR3-230VAC
1 WSMONITOR3 Constant Monitor
2 Operator Remotes
1 Mat Monitor Cord
1 Power Adapter
1 STACKJACK
1 Alligator Clip
4 Screws
2 Hook and Loop Fasteners
1 Certificate of Calibration
Figure 1. SCS
Figure 2. SCS
Figure 3. SCS
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