Designed for electrostatic protection of
static-sensitive components during field
service calls
Although static damage can occur anywhere micro-
electronic components are used, these sensitive devices
are most susceptible during servicing. The 3M™ Static
Dissipative Portable Field Kit 8501 prevents static damage
that frequently occurs when an unprotected service
technician works on electronic equipment.
The 3M Field Service Kit 8501 is designed to quickly
and reliably remove any static charge on the technician and
to provide a static-free surface upon which to lay parts.
The kit includes one 3M™ Adjustable Wrist Band 2204
and a static-dissipative work surface. Both connect to
ground by the 3M™ Ground Cord Assembly 3051. (See
“Components” section for details).
The static-dissipative work surface reduces the potential
for sparking and shorting that exists with highly conductive
mats, and minimizes charge drainage from battery packs.
For added safety, cotton trim covers all edges of the mat.
The construction of this work surface gives it excellent
flexibility over a wide range of temperatures. Its red color
keeps both the technician and the customer alert to the
potential problem of static electricity.
The Field Service Kit 8501 works on the principle of
grounding. When the technician attaches the ground cord
to the wrist band and to the static-dissipative mat, then
connects the cord to ground, any existing static charge
on the technician or on any conductive parts laid on the
mat drains away to ground. Also, new charge is unable to
accumulate.
Note: Static charge on nonconductors (e.g. plastic
boxes, vinyl work order holders, foam coffee cups,
synthetic clothing, etc.) cannot be removed simply by
grounding. The only effective way to get rid of static on
these items is to neutralize the charge with ionized air.
Since it is often impractical to carry an ionized air blower
to a service call site, the technician must take extra care to
keep such nonconductors as far away from the work area
and sensitive electronics as possible.
The need for good static control procedures at a
customer’s site cannot be overemphasized. Practicing
proper static precautions in the field can save time,
money and aggravation for both your customers and your
own company. Static damage caused by an unprotected
technician usually results in one or more callbacks – costly
not only in time and money, but also in reputation. A
callback may suggest to both the customer and your service
manager that the job was not done right the first time.
Components
• Static-dissipative work surface,
.021” x 22” x 24”. Red with dark gray edging. Two
pockets, each approximately 8” x 11”, sewn into the
work surface.
• 3M™ Common Point Ground Cord System 3051 Large
center snap connects to the work surface. The
10’ (extended length) coiled cord section snaps to
technician’s wrist band; the 5’ (extended length) coiled
cord section terminates in a standard banana plug
which connects to ground either directly or by way
of the 3M™ Alligator Clip 3038 (included). Each of
the ground cord sections has its own independent one
megohm resistor for user safety. (Note: 3M™ Insulated
“Bulldog” Clip 3037 is optional.)
• One 3M™ Adjustable Wrist Band 2204
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Static-Dissipative Portable
Field Service Kit 8501
Static-safe field service procedure
(See schematic below)
1. Upon arrival at the service call site, unfold the static-
dissipative kit on any convenient area adjacent to the
trouble location.
2. Remove the accessories from the kit pockets, and attach
the ground cord assembly to the red work surface by
means of the large black snap in the middle of the
cord. Connect the shorter of the two coiled sections to a
reliable ground via the alligator clip, which fits over the
banana plug. (Water pipes, unpainted equipment frames,
electrical conduits, or building frame members usually
provide accessible and reliable grounding locations.)
Once grounded, the work surface cannot hold static
charges. The conductivity of the material ensures that the
boards or components will be protected from the static
charge existing on the carpet, tile, or table top beneath the
mat.
3. Slip on the elastic 3M™ Adjustable Wrist Band 2204.
Adjust the size to fit comfortably, yet still contact the
entire circumference of the wrist. Contact need not to be
tight, but extremely loose fit is not desirable.
4. Snap the longer coiled section of the ground cord
assembly to the stud on the wrist band. This connects
the wrist band to the same common ground as the work
surface.
5. It is now safe to remove and handle static-sensitive
components.
NOTE: After removing a faulty part, put it immediately
into a 3M static-shielding bag to prevent further static
damage during its return trip to the repair depot.
The replacement board can be removed from
its protective bag or container and inserted into the
equipment frame.
6. If recalls persist and indicate the possibility of user-
caused static damage, permanent placement of other 3M
static control products may be required.
Cleaning
Clean the portable work surface with 3M™ Cleaner for
Static Control Mats 8001. It may also be cleaned with
mild detergent and water. Most strong solvents are not
recommended. The wrist band can be cleaned by hand
washing or in a standard washing machine.
Electrical performance
Note: Measuring the resistance of the work surface
requires a high voltage megohmmeter like the one in the
3M™ Test Kit 701. Using a 5-pound, 2-1/2” diameter
electrode*, the resistance to ground should be greater than
106 ohms and less than 109 ohms. If the resistance is less
than 106 ohms, it indicates the existence of an alternate
path to ground (bypassing the one megohm resistor in the
ground cord) which should be traced and corrected. If
the resistance is greater than 109 ohms, it means that the
ground connection is interrupted and must be repaired.
*As specified in NFPA 99.
Printed in USA.
© 3M 2005 98-0799-0225-4
3
Electronics
6801 River Place Blvd.
Austin, TX 78726-9000
800/328-1368
www.3M.com/electronics Minimum 10%
Post-consumer fiber
Important Notice
All statements, technical information, and recommendations All statements,
technical information, and recommendations related to 3M’s products
are based on information believed to be reliable, but the accuracy or
completeness is not guaranteed. Before using this product, you must
evaluate it and determine if it is suitable for your intended application. You
assume all risks and liability associated with such use. Any statements
related to the product which are not contained in 3M’s current publications,
or any contrary statements contained on your purchase order shall have no
force or effect unless expressly agreed upon, in writing, by an authorized
officer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture for a
period of one year from the time of purchase. 3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. If this product is defective within the warranty period stated
above, your exclusive remedy shall be, at 3M’s option, to replace or repair
the 3M product or refund the purchase price of the 3M product. Except
where prohibited by law, 3M will not be liable for any indirect, special,
incidental or consequential loss or damage arising from this 3M
product, regardless of the legal theory asserted.
• 3MTM Ground Cord 3051 snap
to work surface and wrist band,
then attach alligator clip to any
reliable ground
• 3MTM Adjustable
Wrist Band 2204
• Static-Dissipative
Work Surface
