USER GUIDE TB-9085
Dual-Wire Static Control Smock
Installation, Operation and Maintenance
Made in the
United States of America
SCS Dual-Wire Static Control Smocks are constructed
of a lightweight dissipative material which is made from
texturized polyester and a minimum of 9% carbon nylon
monofilament. The conductive nylon fibers are woven
in a chain-link design throughout the material, providing
continuous and consistent charge dissipation. All of the
seams in the smocks are designed to maintain electrical
continuity from panel to panel and from sleeve to sleeve
in accordance with the ESD Association Garment
Standard, ESD STM2.1.
SCS Dual-Wire Static Control Smocks incorporate
a “hip-to-cuff” grounding feature which allows for
hands-free grounding with no cord attached to the
operator’s wrist. This feature allows connection of a
proprietary SCS magnetic dual-wire ground cord (sold
separately) to two snap studs on the hip. A seam of
carbon-suffused threads provides a secure and direct
electrical connection from the snap studs on the hip
to conductive elastic cuffs. The SCS Dual-Wire Static
Control Smock grounds the operator when used in
this manner. Dual-wire personnel grounding testers
or continuous monitors can be used to verify the
“hip-to-cuff” function.
The SCS Dual-Wire Static Control Smock is available in
the following sizes:
Item
770100
770101
770102
770103
770104
770105
770106
770107
770108
770109
Color
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Size
X-Small
Small
Medium
Large
X-Large
Chest
30-32"
34-36"
38-40"
42-44"
46-48"
Sleeve
33-3/4"
34"
34-3/8"
35"
35-1/2"
35-1/2"
37-1/2"
36-1/2"
36"
36"
Figure 1. SCS Dual-Wire Static Control Smock
Description
The SCS Dual-Wire Static Control Smock is designed
for use with dual-wire grounding systems. One
conductive cuff is electrically bonded to the dissipative
garment and one snap stud at the hip. The second
conductive cuff uses an isolated conductive path to
bond to a second snap stud at the hip. The smock’s
dual-wire circuit loop closes when its two conductive
cuffs are bridged by the skin on the wearer’s wrists.
The SCS Dual-Wire Static Control Smock creates
a Faraday cage around the torso and arms of the
wearer and protects ESD susceptible items from the
electrostatic fields generated by the wearer’s clothing.
SCS Dual-Wire Static Control Smocks meet the
requirement for Groundable Static Control Garment
System per ANSI/ESD S20.20 required limit of < 3.5
x 10
⁷
ohms Rtg tested per ANSI/ESD STM2.1 and
ESD TR53. The path-to-ground integrity of the SCS
Dual-Wire Static Control Smock can be verified with
constant monitors or personnel grounding testers.
“While a person may be grounded using a wrist strap
or other grounding methods, that does not mean that
insulative clothing fabrics can dissipate a charge to that
person’s skin and then to ground. Personnel clothing
usually is electrically separate or isolated from the body.
Groundable Static Control Garment System, Garments
that are used to establish the primary ground path for
a person shall provide a resistance of less than 35
megohms from the person to the groundable point
of the garment.” (ESD TR20.20-2008 section 5.3.13
Garments)
2X-Large 50-52"
3X-Large 54-56"
4X-Large 58-60"
5X-Large 62-64"
6X-Large 66-68"
The magnetic dual-wire ground cord is not included with
the SCS Dual-Wire Static Control Smock, and it must be
purchased separately.
Item
770110
770111
Description
MagSnap® Dual-Wire Coil Cord, 6'
MagSnap® Dual-Wire Coil Cord, 12'
SCS
- 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website:
StaticControl.com
TB-9085
Page 1 of 3
December 2017
© 2017 DESCO INDUSTRIES, INC.
Employee Owned
Operation
Use the following instructions to pair the SCS Dual-Wire
Static Control Smock with an SCS dual-wire continuous
monitor and use it as a Groundable Static Control
Garment System.
1. Connect the MagSnap® Dual-Wire Coil Cord to the
two snap studs located nearby the left-hand hip
pocket.
Figure 2. SCS
770110
MagSnap® Dual-Wire Coil Cord
Installation
1. Put on the smock, and close the garment by
fastening all of the snaps on the front. Verify that no
clothing is exposed outside of the smock.
Figure 5. Connecting the SCS MagSnap® Dual-Wire
Coil Cord to the Dual-Wire Static Control Smock
2. Connect the opposite end of the MagSnap®
Dual-Wire Coil Cord to a dual-wire continuous
monitor.
YES!
NO!
Figure 3. Proper wear of the Dual-Wire Static Control
Smock
2. Fit the conductive knitted cuffs over the wrists.
Ensure that the cuffs make contact with the skin.
They should never be worn over the shirt sleeves.
YES!
NO!
Figure 4. Proper wear of the conductive knitted cuff
Figure 6. Using the Dual-Wire Static Control Smock
with the SCS
CTC331-WW
Iron Man® Plus Workstation
Monitor
SCS
- 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website:
StaticControl.com
TB-9085
Page 2 of 3
© 2017 DESCO INDUSTRIES, INC.
Employee Owned
Maintenance
Smocks must be laundered periodically for proper
operation. Launder the smocks by hand or with a
standard household washing machine using cold
or warm water and non-ionic liquid detergent. SCS
recommends using Woolite® Detergent. The smocks
should be hung dry or tumbled dry using low heat.
DO NOT USE:
• Hot water
• Dry detergent
• Bleach
• Fabric softener
• Industrial laundry machines
The carbon-suffused mono-filament nylon is sensitive to
heat and should not be exposed to laundering heat in
excess of 120°F. Under normal wearing and
recommended washing conditions, SCS smocks will
maintain their usefulness and effectiveness for a
minimum of 100 washings. Other ESD smocks have
as little as 1% suffused carbon and lose their ESD
protective qualities after a few washings.
Figure 7. Using the Dual-Wire Static Control Smock with
the SCS
770061
WS Aware Monitor
Specifications
Fabric Weight*
Fabric Content
2.2 oz per square yard
Texturized polyester and
a minimum of 9% carbon
mono-filament nylon
Verification
Refer to ANSI/ESD STM2.1 for instructions on how
to verify the SCS Dual-Wire Static Control Smock as
a Static Control Garment, Groundable Static Control
Garment and Groundable Static Control Garment
System. SCS offers various meters, testers and
continuous monitors that may be used to perform the
tests outlined in ANSI/ESD STM2.1. Use the links below
to learn more.
•
•
•
•
SCS
701
Analog Surface Resistance Megohmmeter
SCS
Personnel Grounding Tester Selection Guide
SCS
Workstation Monitor Selection Guide
SCS
Equipment Ground Monitor Selection Guide
Carbon Mono-Filament Conductive at 1 x 10
4
ohms, non-flaking and
non-sloughing
Surface Resistance
Glass Transition
Temperature
Flash Point
Country of Origin
1 x 10
5
to < 1 x 10
7
ohms, per
ANSI/ESD STM2.1 and ESD
TR53 of Fabrics
250°F
1040°F
United States of America
*Fabric lots vary slightly in color and weight
Limited Warranty, Warranty Exclusions, Limit
of Liability and RMA Request Instructions
See the SCS Warranty -
StaticControl.com/Limited-Warranty.aspx
SCS
- 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website:
StaticControl.com
TB-9085
Page 3 of 3
© 2017 DESCO INDUSTRIES, INC.
Employee Owned
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