Vermason 222693 User manual

Limit Comparator for Testers
Installation and Operating Instructions
UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK
Phone: [phone], Fax: [phone] • e-mail: [e-mail], Internet: Vermason.co.uk
TB-7541 December 2008 Page 1 of 3 © 2008 Vermason
Figure 1. Item 222693 Limit
Comparator
Description
Figure 2 shows the components of
the limit comparator.
Figure 2. Components of item
222693
Installation
Remove the Limit Comparator from
the carton and inspect for shipping
damage. Included with the unit are:
• 1 Limit Comparator
• 2 Test Leads, Banana to Banana
• 1 NIST Certificate of Calibration
Operation
Testing Footwear Circuit, refer to
figure 3.
To complete the footwear test, you
will need to test the low and high
limits. Refer to the dip setting on the
left side of the testers for footwear
test ranges. Manufacturer’s
suggested default test range is 1Meg
low and 35Meg high for the US and
Europe.
Do not power down tester, remove
stereo cable from bottom right jack of
tester labeled "FOOTPLATE" and
connect the stereo lead from model
222693 to the jack labeled
"FOOTPLATE".
Figure 3. Footwear test setup
Testing Low Circuit - If the tester's
low range is set to 1Meg. Set the
knob on model 222693 to the "1M
LOW" position. Push the metal
button down on the tester and you
should get a red LED for the left and
right foot. Disregard the test result for
the wrist strap if the wrist strap circuit
is on.
Set the knob on model 222693 to
"1M Pass", push the metal button on
the tester and you should get a
green LED for the left and right of the
foot.
Testing High Circuit - If the tester's
high range is 35Meg. Set the knob
on model 222693 to "35M PASS",
push the metal button on the tester
and you should get a green LED for
the left and right feet. Set the knob
on model 222693 to "35M HIGH",
push the metal button on the tester
and you should get a yellow LED for
both the left and right feet. If the limit
is set to 1Gig on the tester, test at
1Gig on model 222693, same for
10Meg and 100Meg.
Figure 4. Footwear test results
TECHNICAL BULLETIN TB-7541
Made in America
Footwear Low Fail
Footwear Low and High Pass
Footwear High Fail

Testing Wrist Strap Circuit, refer to
figure 5.
To complete the wrist strap test, you
will need to test the low and high
limits. Refer to the dip setting on the
left side of the testers for wrist strap
test ranges. Manufacturer’s
suggested default test range is 1Meg
low and 10Meg high for the US and
1Meg to 35Meg for Europe.
Do not power down the tester. Using
the 2 banana leads included with
model 222693. Attach 1 of the
banana leads to the right side
banana jack on model 222693 and
connect the other end to the ground
symbol jack on the tester. Connect
the last banana jack to the left
banana jack of model 222693 and
the other end to the "SINGLE -
WIRE" banana jack
Figure 5. Wrist strap test setup
Testing Low Circuit - If the tester's
low range is set to 1Meg. Set the
knob on model 222693 to the "1M
LOW" position. Push the metal button
down on the tester and you should
get a red LED for the Wrist strap.
Disregard the test result for the
footwear. Set the knob on model
50401 to "1M Pass", push the metal
button on the tester and you should
get a green LED for the wrist strap.
Testing High Circuit - If the tester's
high range is 10Meg. Set the knob on
model 222693 to "10M PASS" and
push the metal button on the tester
and you should get a green LED for
the wrist strap. Set the knob on
model 222693 to "10M HIGH" and
push the metal button on the tester
and you should get a yellow LED for
the wrist strap. If the limit is set to
35Meg on the tester, then test at
35Meg on model 222693.
Figure 6. Wrist Strap test results
Specifications and
Dimensions
Figure 7. Dimensions of the 222693
The 22693 limit comparator will
calibrate the following testers:
222720 - SmartLog X3 w/Dual Foot
Plate, Keypad, & Barcode Reader,
120V
222700 - Dual Independent Footwear
and Wrist Strap Tester
222690 - Dual Independent Footwear
Tester
Calibration
There are no user adjustments on
model 222693. Each value is a fixed
resistor load, any model 222693 that
falls out of specification will need to
be sent to factory for repair. Using a
DVM (digital voltage meter) set the
meter to read ohms. The limit that
the knob is set on can be measured
using the DVM connected between
Banana 1 to Banana 2 and
connected between Conductor 1 and
Conductor 2. Refer to figure 8.
Figure 8. Test points
UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK
Phone: [phone], Fax: [phone] • e-mail: [e-mail], Internet: Vermason.co.uk
TB-7541 Page 2 of 3 © 2008 Vermason
Wrist Strap Low Fail
Wrist Strap Low and High Pass
Wrist Strap High Fail

222693 Limits Nominal Resistance % Tolerance of Nominal
Resistance
10K Fail Low 9.5K 2%
10K Pass 10.5K 2%
100K Fail Low 95.0K 2%
100K Pass 105K 2%
1M Fail Low 950K 2%
1M Pass 1.05M 2%
10M Pass 9.09M 2%
10M Fail High 11.09M 2%
35M Pass 31.09M 2%
35M Fail High 37.89M 2%
100M Pass 90.9M 2%
100M Fail High 112.9M 2%
1G Pass 912.9M 2%
1G Fail High 1.113G 2%
UNIT C, 4TH DIMENSION, FOURTH AVENUE, LETCHWORTH, HERTS, SG6 2TD UK
Phone: [phone], Fax: [phone] • e-mail: [e-mail], Internet: Vermason.co.uk
TB-7541 Page 3 of 3 © 2008 Vermason
Limited Warranty
Vermason expressly warrants that for a period
of one (1) year from the date of purchase,
Vermason Limit Comparators will be free of
defects in material (parts) and workmanship
(labour). Within the warranty period, a unit will
be tested, repaired or replaced at Vermason’s
option, free of charge. Call Customer Service
at 0044 (0) 1462 672005 for a Return Material
Authorisation (RMA) and for proper shipping
instructions and address. Any unit under
warranty should be shipped prepaid to the
Vermason factory. You should include a copy
of your original packing slip, invoice, or other
proof of purchase date. Warranty repairs will
take approximately two weeks.
If your unit is out of warranty, Vermason will
quote repair charges necessary to bring your
unit to factory standards. Call Customer
Service at 0044 (0) 1462 672005 for a Return
Material Authorisation (RMA) and proper
shipping instructions and address.
Warranty Exclusions
THE FOREGOING EXPRESS WARRANTY IS
MADE IN LIEU OF ALL OTHER PRODUCT
WARRANTIES, EXPRESSED AND IMPLIED,
INCLUDING MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE
WHICH ARE SPECIFICALLY DISCLAIMED.
The express warranty will not apply to defects
or damage due to accidents, neglect, misuse,
alterations, operator error, or failure to properly
maintain, clean or repair products.
Limit of liability
In no event will Vermason or any seller be
responsible or liable for any injury, loss or
damage, direct or consequential, arising out of
the use of or the inability to use the product.
Before using, users shall determine the
suitability of the product for their intended use,
and users assume all risk and liability
whatsoever in connection therewith.