Desco Europe Charleswater 99037 Installation, Operation And Maintenance Manual

EUROPE
Combo Tester
Installation, Operation and Maintenance
Figure 1. Charleswater
Description
The Charleswater Combo Tester verifies the functionality
of an operator's wrist strap and footwear (footwear
test requires foot plate). It determines if an operator's
wrist strap and footwear will function correctly. A rocker
switch allows the operator to select a wrist strap or
footwear test. A green light indicates that the wrist strap
or footwear is passing. Red and yellow lights plus an
audible alarm indicate when the wrist strap or footwear is
failing. If failure occurs, the tester will also display if the
grounding device's resistance is too low or too high.
The factory test limits are set to:
Wrist Straps: 750 Kilohms and 35 Megohms
Footwear: 750 Kilohms and 35 Megohms
Contact Desco Europe Customer Service
limits are required.
The Combo Tester is powered by a 9 volt battery. A
warning light on the tester indicates when the battery
power is too low and affecting the test results.
Each Combo Tester is calibrated with accepted
procedures and standards traceable to the National
Institute of Standards and Technology (NIST) and
includes a NIST certificate.
PPE-5111.E Page 1 of 6 May 2018
TECHNICAL BULLETIN PPE-5111.E
99037 Combo Tester
if custom test
DESCO EUROPE - 2A DUNHAMS LANE, LETCHWORTH, HERTFORDSHIRE, SG6 1BE, UK
Phone: +44 (0) 1462 672005 • E-mail: Service@DescoEurope.com, Website:
This product can be used as one of the tools to fulfil
EN 61340-5-1 Compliance verification requirements.
"Process monitoring (measurements) shall be conducted
in accordance with a compliance verification plan that
identifies the technical requirements to be verified, the
measurement limits and the frequency at which those
verifications must occur. ... Compliance verification
records shall be established and maintained to provide
evidence of conformity to the technical requirements.
The test equipment selected shall be capable of making
the measurements defined in the compliance verification
plan."
"Wrist straps should be tested periodically. The
frequency of testing, however, is driven by the amount
of usage, wear and ESD risk exposure that can occur
between tests. For example, what is the quantity of
product handled between test periods? 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 a
guarantee of a continuous, reliable ground is needed
then continuous monitoring should be considered or
even required." (CLC TR 61340-5-2 User guide Wrist
Strap clause 4.7.2.4.4 Test frequency)
"While wearing the wrist strap, connect the loose end
of the cord to the tester terminal and depress the test
button or touch the metal test surface with a finger or
hand. If the resistance is over 3,5 x 10
alone for continuity. If the resistance of the cord alone
is approximately 1,0 x 10
around the wrist and adjust it for a snug fit. Snap the
cord back on the cuff and retest. If the resistance is
7
still over 3,5 x 10 Ω, substitute a new band." (CLC TR
61340-5-2 User guide Wrist Strap clause 4.7.2.4.3 Test
procedure)
"The operator shall stand with one foot on the
conductive footwear electrode. The hand contact plate
shall be pressed to verify that the person footwear
system resistance is within acceptable parameters.
The test shall be repeated for the other foot. The test
apparatus can be an integrated, commercially available
tester." (EN 61340-5-1 Annex A Test method A.2
Measurement procedure for footwear testing)
Item Description
99037 Combo Tester
99038 Combo Tester with Stand and Foot Plate
99013 Stainless Steel Foot Plate
DescoEurope.com
Made in the
United States of America
7
Ω, test the cord
6
Ω, check the fit of the band
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Employee Owned