Vermason 222700 Installation And Operating Instructions

Dual Independent Footwear
and Wrist Strap Tester
Installation and Operating Instructions
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).
"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
Phone: 0044 (0) 1462 672005, Fax: 0044 (0) 1462 670440 • e-mail: Service@Vermason.co.uk, Internet:
TB-7535 August 2009 Page 1 of 3
TECHNICAL BULLETIN TB-7535
Daily checks, clause 9.6.2 Wrist strap)
"Where toe and heel straps are used as ESD
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.
Switch 1 Switch 2 Resistance
ON
OFF
ON
OFF
* Default Setting
UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK
HIGH Limit
ON 10 Megohms
(1 X 10E7)
OFF 35 Megohm
(3.5 X 10E7)*
OFF 100 Megohm
(1 X 10E8)
ON 1 Gigohm
(1 X 10E9)
DIP switches 3 and 4 control the "LOW" test
limit.
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.
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)
* 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.
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