Desco TB-6106 Installation Manual

TB-6106 January 2009 Page 1 of 4

Footwear Tester Installation,
Operation and Maintenance

ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • [phone] • Fax [phone] • Website: ESDSystems.com

Description

The Semtronics 62090 Footwear Tester is a 3-state touch
tester designed for fast and frequent testing of ESD
personnel footwear. The 62090 tester can be used to verify
that the ESD footwear resistance circuit is within the proper
limits. It can be setup to test a 1M - 100M circuit (foot
grounders) or a 1M - 1G circuit (dissipative shoes).

This unit can be used as one of the tools to fulfill the ANSI
ESD S20.20 paragraph 6.1.3.2 Compliance Verification
Plan. "Verification should include routine checks of the
Technical Requirements of the Plan." The Footwear Tester
incorporates a unique dual test circuit design which
improves test accuracy.

ESD TR1.0-01-01 section 1.0 Introduction
"Since people are one of the greatest sources of static
electricity and ESD, proper grounding is paramount. One of
the most common ways to ground people is with a wrist
strap. Ensuring that wrist straps are functional and are
connected to people and ground is a continuous task."

ESD SP9.2 APPENDIX B - Foot Grounder Usage Guidance
"Compliance verification should be performed prior to each
use (daily, shift change, etc.). The accumulation of
insulative materials may increase the foot grounder system
resistance. If foot grounders are worn outside the ESD
protected area testing for functionality before reentry to the
ESD protected area should be considered."
OPERATION

NOTE: Refer to the technical manual for your foot­grounding devices. Not all foot-grounding devices are
similar and it is very important that you review their
specifications.

INSTRUCTIONS MANUAL TB-6106

Made in America

© 2009 DESCO INDUSTRIES INC.

Employee Owned

Figure 1. 62090 Footwear Tester

Figure 2. Footwear Tester and Foot Plate Features and
Components

Packaging

1 Footwear Tester
1 Foot Plate
1 12 VDC Power Adapter (500 mApositive center)
1 Banana Plug to Ring Terminal Cord
1 Snap to Ring Terminal Cord
1 NIST Certificate of Calibration

Installation

Mounting the Tester

• Verify that the correct low and high test limits are
correctly set before mounting the tester to a wall.
Refer to the overlay located on the bottom of the tester.
(See table on Page 4 for more details)

• Be sure to install the Footwear Tester and foot plate
away from any high voltage power supplies, power
boxes, chemicals, and other safety hazards.

• Place in a convenient area where waiting lines may
be allowed to form.

• Mount the tester in the upright position (See Figure 2)
approximately 4 feet above floor level.

• Place the foot plate directly below the Footwear
tester.

ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • [phone] • Fax [phone] • Website: ESDSystems.com

Connecting the Footwear Tester and Foot Plate

I. Using the banana plug to ring terminal cord, connect
the banana plug to the banana jack on the bottom side
of the tester and the ring terminal to a known ground.

II. Using the snap to ring terminal cord, snap the cord
to the foot plate and the ring terminal to a known
ground.
III. After all connections have been made, insert the
female plug of the power adapter to the bottom of the
tester.

IV. Plug the power adapter into an appropriate power
source. The yellow "HIGH" LED will turn on indicating
standby mode.

Calibration

ESD Handbook TR 20.20 paragraph 5.2.3 "If the
contact area between the bottom of the foot and the
floor is not continuous, charge generation may occur
especially when a person is walking. Heel straps must
be worn on both feet to minimize the amount of time
that the body of the person is isolated from ground
while walking."

Note: Consider Semtronics Continuous Monitors
Per ESD Handbook TR 20.20 paragraph 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."

TB-6106 Page 2 of 4

It is recommended that calibration of this unit be
handled by a qualified technician. There are no user
adjustable potentiometers, but there are DIP switches
to adjust the ranges.

The Footwear Tester can be calibrated by using a 1k ­2G range decade box to load a resistance across the
stainless steel handle and the banana jack located on
the bottom of the tester. Resistance Load X from the
decade box is the value that will be indicated as a Fail
LOW, Fail HIGH, or PASS.

© 2009 DESCO INDUSTRIES INC.

Employee Owned

Figure 3. Connecting the Footwear Tester and Foot Plate

Figure 4. Applying a Load Resistance to the Footwear Tester