Vermason 222700, 222690 Installation And Operating Instructions Manual

TECHNICAL BULLETIN TB-7535

Dual Independent Footwear
and Wrist Strap Tester
Installation and Operating Instructions

Daily checks, clause 9.6.2 Wrist strap)
“Where toe and heel straps are used as ESD

Figure 1. Vermason 222700 Dual
Independent Footwear and Wrist Strap

Tester

Description

The Vermason Dual Independent Footwear
and Wrist Strap Tester is designed to test
personal grounding devices, wrist strap and
ESD footwear, to satisfy the requirements
and the recommendations of EN 61340-5-1.

Use the Vermason Dual Independent
Footwear and Wrist Strap Tester to fulfill
the requirements of EN 61340-5-1. Per
EN61340-5-1 Table 1 ESD protective item
requirements, the Resistance to be for Wrist
Strap as worn to be 1M = 1 X 10E6 ohms
</= Rp </= 3.5 x 10E7 ohms.

“When footwear/floor systems are used as
primary means of grounding personnel,
the resistance of the combination shall be
determined by the ESD co-ordinator, and is
recommended to be 1M = 1 X 10E6 ohms
and 3.5 x 10E7 ohms” (EN 61340-5-1 Table
1 ESD protective item requirements NOTE

2).

footwear, once these are worn outside the
EPA (ESD protected area, particularly on
carpets, they are likely to accumulate fluff
and become ineffective; this requires that
they be checked or replaced on every visit
to the EPA. …When ESD footwear is used,
it should be noted that ESD footwear alone
cannot achieve protection, but needs to be
used in conjunction with a suitable ESD
floor.” (EN 61340-5-2 clause 5.2.8 Footwear)

“All wearers shall check that their heel and
toe straps meet requirements. The check
shall be made before entering the EPA.”
(EN 61340-5-1 Daily checks, clause 9.6.3
Non-permanent footwear)

Packaging

1 Dual Independent Footwear and
Wrist Strap Tester
1 Dual Foot Plate
1 Stereo Plug to Stereo Plug Cord
1 Banana Plug to Ring Terminal

Cord

1 Certificate of Calibration

Installation

The resistance limits for footwear and wrist
strap tests are controlled by the DIP switches
located on the left-side of the tester (see
Figure 2). See the following tables for the
DIP switch settings and their corresponding

test values.

Footwear Rresistance

DIP switches 1 and 2 control the “HIGH” test
limit.

HIGH Limit
Switch 1 Switch 2 Resistance

ON ON 10 Megohms
(1 X 10E7)

OFF OFF 35 Megohm
(3.5 X 10E7)*

ON OFF 100 Megohm
(1 X 10E8)

OFF ON 1 Gigohm
(1 X 10E9)

LOW Limit
Switch 3 Switch 4 Resistance

ON OFF 100 Kilohms
(1 X 10E5)

OFF ON 1 Megohm
(1 X 10E6 ohms)*

* Default Setting

NOTE: At 1 Gigohm high limit resistance, a
dirty foot plate could result in a false pass.
Be sure to keep the foot plate clean when
using this setting.

Wrist Strap Resistance

DIP switches 5 and 6 control the “HIGH” test
limit.

* Default Europe Setting

DIP switch 5 must be ON (default setting) for
the wrist strap test to be active. If the wrist
strap test is disabled by DIP switch 5 being
OFF, the 3 LEDs for this test will remain OFF
at all times.

The “LOW” limit for the wrist strap test is set
to 1 Megohms and cannot be changed by the
user.

Made in America

DIP switches 3 and 4 control the “LOW” test
limit.

HIGH Limit
Switch 5 Switch 6 Resistance

OFF OFF Wrist Strap Test
Disabled

ON OFF 35 Megohm
(3.5 X 10E7)*

ON ON 10 Megohm
(1 X 10E7)

“Wrist straps shall be checked before use.
Each check shall be made with the wrist
band worn in contact with the wearer’s skin
and with the ground cord attached to the
appropriate tester.” (EN 61340-5-1 clause 9.6

UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK

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TB-7535 August 2009 Page 1 of 3 © 2009 Vermason

* Default Setting

Audio Adjustment

Foot Plate Jack

Wrist Strap

Relay

Ground Jack

FRONT VIEW

DIP Switch Power Jack

SIDE VIEW

Data Output

(for SmartLog X3)

TOP VIEW

Figure 2. Dual Independent Footwear and
Wrist Strap Tester side views

Installing The Tester And Foot
Plate

Mount the tester at the desired location using
the four mounting holes in the corners of
the yellow mounting plate. Set the foot plate
below the tester.

Insert one end of the Stereo Plug to Stereo
Plug cord into the stereo jack located at the
bottom of the tester (see Figure 2). Insert
the other end of the cord into the stereo jack
at the back of the foot plate.

Insert the banana plug end of the Banana
Plug to Ring Terminal cord into the ground
jack located at the bottom of the tester (see
Figure 2). Connect the ring terminal end of
the cord to earth ground. This connection
will remove any static charge from the user
before the test. NOTE: Failure to correctly
ground the tester may result in damage not
covered under warranty.

Insert the power supply plug into the power
jack located on the left-side of the tester (see
Figure 2). Plug the power supply into an
appropriate power outlet.

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UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK

Single Wire Jack

Test Push Button

1 2 3 1 & 2 = Normally closed
Relay 2 & 3 = Normally open
1 A @ 30 VDC (Rating)

Dual-Wire Jack

Right FootLeft Foot

Figure 3. Dual Independent Footwear and Wrist Strap Tester features and components

Relay Terminal

A relay with both “normally open” and
“normally closed” contacts is included for
your convenience. Going from left to right,
the terminal block on the bottom of the
tester has terminals for “normally closed,”
“common,” and “normally open” (see Figure

3). The relay can be used for opening an
electric lock to an ESD sensitive area. The
maximum contact rating is: 1A@30VDC.

Operation

Upon power up, the alarm will sound and
all of the LEDs for the activated tests will be
illuminated. The tester is now ready for use.

Pushing the touch plate on the front panel
starts the test. During the test all LEDs will
turn off to indicate that a test is in progress.
The touch plate must remain depressed until
the test results are displayed. Depending on
the configuration of the tester, the test could
require up to three (3) seconds.

The resistance is checked from the touch
plate to the corresponding foot plate for
each foot and from the touch plate to the
wrist strap connector jacks through the
operator. A wrist strap must be plugged
into the appropriate jack before the touch
plate is depressed if the wrist strap option is
activated.

The Dual Independent Footwear and Wrist
Strap Tester can test both single and dual
wrist straps. Single-wire wrist straps are
to be plugged into the banana jack labeled
“SINGLE-WIRE” located on the front panel
of the tester (see Figure 3). Dual-wire wrist
straps are to be plugged into the phono jack
labeled “DUAL-WIRE” located on the front
panel of the tester (see Figure 3). The tester
automatically determines what type of wrist
strap is being tested.

The LED(s) will turn off while the test is in
progress. The test results for each foot
and wrist strap will then be displayed for
approximately three (3) seconds. If all tests
result in a “PASS” condition, the internal relay
will activate.

If any of the test results fail “HIGH” or “LOW,” an
audible alarm will sound. The LED(s) indicating
the failed test will be displayed for approximately
three (3) seconds, and the internal relay will not
activate.

Specifications

Rated tester voltage:

12 VDC, 600 mA, (2.5 mm connector -
center positive)

Relay contact rating:

1 A @ 30 VDC max

Temperature range:

41°F - 104°F (5°C - 40°C)

Operating conditions:

Indoor use only at altitudes less than
6500 ft. (2 km).

Maximum relative humidity of 80% up to 88°F
(31°C) decreasing linearly to 50% @ 104°F
(40°C).

Pollution degree:

2 per IEC 644

Calibration

The Vermason Dual Independent Footwear and
Wrist Strap Tester is calibrated to standards
traceable to NIST. Frequency of recalibratrion
should be based on the critical nature of those
ESD sensitive items handled and the risk of
failure for the ESD protective equipment and
materials.

TB-7535 Page 2 of 3 © 2009 Vermason