9026 Desco, 9026 Datasheet
9026
Manufacturer Part Number
9026
Description
WRISTBAND ELASTIC MEDIUM 4MM
Manufacturer
Desco
Specifications of 9026
Strap Type
Wrist Strap (Wristband)
Size
Medium
Color
Blue
Number Of Conductors
Single Wire
Strap Material
Elastic Fabric
Strap Termination
4mm Snap Stud
Lead Free Status / RoHS Status
Not applicable / Not applicable
Features
-
Cord Length
-
Cord Plug
-
Cord Type
-
Strap Closure
-
TB-2005 December 2008 Page 1 of 2
Location of Proper Ground Point
Wrist straps, work surfaces, and floor mats
which are to be grounded for protection
against electrostatic discharge (ESD)
should be grounded to a common point.
The common point should be connected to
the “green wire” equipment ground.
Figure 1. Common point ground for each
workstation
This may be accomplished in a variety of
ways utilizing common point ground
blocks, ground buses, or connecting
directly to the nearest utility “green wire”
ground point. In a properly wired building,
the nearest reliable ground point will be
the center screw of the standard 110VAC
outlet.
Figure 2. “Green wire” equipment ground
Each individual workstation must be
individually grounded to the ground bus or
“green wire” equipment ground. Do not
wire work surfaces or other ESD
devices in series or “daisy chain” them.
This can create unknown resistance and
unacceptable grounds.
For a more detailed discussion of ESD
grounding see Desco technical bulletin
TB-2007. For instructions on grounding
Desco workstation mats see technical
bulletin TB-2000.
Test The Ground Before You
Use It And Periodically
Thereafter
Do not assume that any AC electrical
outlet is properly wired. Even if it was
originally wired correctly it can become
Wrist Straps
Grounding, Testing and Maintenance
COMMON POINT
GROUND #09826
EQUIPMENT
GROUND
GREEN
DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: Desco.com
WIRE
FLOOR MAT
GROUND #09814
NO
WRIST STRAP
WITH COIL CORD
THE WRIST STRAP!
TECHNICAL BULLETIN TB-2005
DAISY CHAIN
FLOOR MAT
WARNING!
DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449
DO NOT
BENCH MAT
ungrounded due to corrosion and wear.
Test the ground you intend to use
before you hook up. We suggest using
Desco’s item 98130 AC Outlet Analyzer
and Wrist Strap Tester.
A Banana Jack Is Recommended
Almost all wrist strap manufacturers
terminate wrist ground cords with banana
plugs. This is because the banana plug
and jack have proven to be a fast and
reliable way to attach to ground. If you
must use another method such as snaps
or alligator clips, due to your particular
environment, be sure to test the
connections often.
Note: Many wrist strap users clip the wrist
cord to the edge of an ESD protective mat.
This process is not recommended as it
can increase the total system resistance to
ground to over the 35 megohm limit
recommended in ESD S 20.20. (ESD
Handbook TR20.20 section 5.3.2.2.2 Wrist
Strap Ground Cord)
Figure 3. Desco’s 09740/09741 dual
bench mount and 09835/09836 quad
common point ground cord are two easy
ways to provide multiple banana jacks at
any workstation.
Compliance Verification of the
Ground System
Set up a schedule to be sure that all ESD
grounds are inspected and tested
periodically, every six months for example.
Testing the Wrist Strap
The best test of the wrist strap system is
while it is worn. This includes all three
components: the wrist band, the ground
cord (including resistor), and the interface
with the wearer’s skin.
Desco has several testers available for
this purpose. For more information ask for
specification drawings or operating
instructions by item number.
09740
09835/09836
Figure 4. Wrist strap testers
If you obtain an open or bad reading from
the tester you should stop work and test
the wrist band and cord individually to find
out which item has failed. Replace the bad
component and test the system again.
Obtain a “Pass” reading before beginning
work.
Cleaning
For proper operation, the wrist strap,
especially the wrist band strip, must be
kept clean. All wrist bands should be
cleaned with a mild detergent on a periodic
basis. Be sure that metallic expansion wrist
bands are thoroughly dried to prevent
corrosion.
Woolite™ works well. Liquid detergents are
better than dry in that there is less caking
and frictional wear. Launder elastic wrist
band strips in cool or warm water, tumble
dry with low heat or hang dry. This works
well if using a standard house machine on
gentle cycle. Industrial machines are fine if
"Pony" (typically under 200 pound loads)
machines are used. It is not recommended
to launder .. in heavy industrial laundry
machines as it will lead to premature wear.
Should be tumbled dry using low heat. DO
NOT BLEACH.
Wrist Strap silver fibers are sensitive to
heat and should not be exposed to
laundering heat in excess of 120°F. Use
only non-ionic softeners and detergents
when laundering."
19208
19250
© 2008 DESCO INDUSTRIES INC.
Made in America
19350
Employee Owned
9026 Summary of contents
Page 1
... DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: Desco.com TB-2005 December 2008 Page ungrounded due to corrosion and wear ...
Page 2
... To replace the fabric, DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: Desco.com TB-2005 Page simply open the clasp as described under “ ...