TECHNICAL BULLETIN TB-2039
Calibration Unit for Testers
Installation, Operation and Maintenance
Packaging
Made in the
United States of America
1 Calibration Unit
2 Test Leads with Banana Plug Terminals
1 Certificate of Calibration
Operation
WRIST STRAP TESTER
1. Plug one of the included test leads into the black banana
jack labeled “E” on the Calibration Unit. Connect the
opposite end of the test lead into the yellow banana jack
located on the
19240
Wrist Strap Tester.
Figure 1. Desco
07010
Calibration Unit
Description
The Desco
07010
Calibration Unit is designed to verify
whether a tester is operating within specifications.
This product can be used as one of the tools to fulfill
the ANSI/ESD S20.20 paragraph 6.1.3.2 “Compliance
Verification Plan.” The
07010
Calibration Unit is a
passive device and requires no power source. The
Calibration Unit is manufactured with industry accepted
test ranges for both wrist straps and foot grounders.
The wrist strap pass range is set at 750K - 10M, while
the foot ground test range is set at 750K - 100M. The
Desco Calibration Unit is calibrated to NIST traceable
standards.
The Desco
07010
Calibration Unit is to be used with the
following items:
Item
Description
Figure 2. Connecting the test lead from banana jack “E”
on the Calibration Unit to the banana jack on the Wrist
Strap Tester
2. Connect the second test lead to the red 675K banana jack
labeled “A” on the Calibration Unit. Touch the opposite
end of the test lead to test plate on the Wrist Strap Tester
and press down to activate the test. Be sure not to touch
the banana plug or test plate with your skin.
3. Observe the response from the Wrist Strap Tester. The
alarm should sound, and the LOW LED should illuminate
red.
4. Repeat the procedure for test points B (825K), C (8.5M)
and D (11.5M). The expected test results can be found in
the following table.
Test Resistance Test Output
Point
Value
A
B
C
D
675K
825K
8.5M
11.5M
FAIL LOW
PASS
PASS
FAIL HIGH
19240
Wrist Strap Tester
19250
Combo Wrist Strap / Footwear Tester
19252
Combo Wrist Strap / Footwear Tester with
Stand
19253
Combo Wrist Strap / Footwear Tester with
Foot Plate
19350
Wrist Strap Touch Tester, 120VAC
19351
Wrist Strap Touch Tester, 220VAC
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Desco.com
TB-2039
Page 1 of 4
July 2012
© 2012 DESCO INDUSTRIES, INC.
Employee Owned
Test Resistance Test Output
Point
Value
A
B
C
D
675K
825K
8.5M
11.5M
FAIL LOW
PASS
PASS
FAIL HIGH
Figure 3. Verifying the calibration of the Wrist Strap
Tester
COMBO WRIST STRAP / FOOTWEAR TESTER
Testing the Wrist Strap Circuit
1. Plug one of the included test leads into the black banana
jack labeled “E” on the Calibration Unit. Connect the
opposite end of the test lead into the yellow banana jack
labeled “WRIST CORD” on the Combo Wrist Strap /
Footwear Tester. Toggle the switch to the “WRIST
CORD” position.
Figure 5. Verifying the calibration of the wrist strap
circuit in the Combo Tester
Testing the Footwear Circuit
1. Plug one of the included test leads into the black banana
jack labeled “E” on the Calibration Unit. Connect the
opposite end of the test lead into the yellow banana jack
labeled “FOOTPLATE” on the Combo Wrist Strap /
Footwear Tester. Toggle the switch to the “FOOTPLATE”
position.
Figure 4. Connecting the test lead from banana jack “E”
on the Calibration Unit to the WRIST CORD banana jack
on the Combo Tester
2. Connect the second test lead to the red 675K banana jack
labeled “A” on the Calibration Unit. Touch the opposite
end of the test lead to test plate on the Combo Tester
and press down to activate the test. Be sure not to touch
the banana plug or test plate with your skin.
3. Observe the response from the Combo Tester. The alarm
should sound, and the LOW LED should illuminate red.
4. Repeat the procedure for test points B (825K), C (8.5M)
and D (11.5M). The expected test results can be found in
the following table.
Figure 6. Connecting the test lead from banana jack “E”
on the Calibration Unit to the FOOTPLATE banana jack
on the Combo Tester
2. Connect the second test lead to the red 675K banana jack
labeled “A” on the Calibration Unit. Touch the opposite
end of the test lead to test plate on the Combo Tester
and press down to activate the test. Be sure not to touch
the banana plug or test plate with your skin.
3. Observe the response from the Combo Tester. The alarm
should sound, and the LOW LED should illuminate red.
4. Repeat the procedure for test points B (825K), C (80M)
and D (120M). The expected test results can be found in
the following table.
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Desco.com
TB-2039
Page 2 of 4
© 2012 DESCO INDUSTRIES, INC.
Employee Owned
Test Resistance Test Output
Point
Value
A
B
C
D
675K
825K
80M
120M
FAIL LOW
PASS
PASS
FAIL HIGH
Test Resistance Test Output
Point
Value
A
B
C
D
675K
825K
8.5M
11.5M
FAIL LOW
PASS
PASS
FAIL HIGH
Figure 7. Verifying the calibration of the footwear circuit
in the Combo Tester
WRIST STRAP TOUCH TESTER
1. Plug one of the included test leads into the black banana
jack labeled “E” on the Calibration Unit. Connect the
opposite end of the test lead into one of the yellow
banana jacks located on the Wrist Strap Touch Tester.
Power the Wrist Strap Touch Tester.
Figure 9. Verifying the calibration of the Wrist Strap
Touch Tester
Specifications
Accuracy:
±2%
Dimensions:
3.2" L x 4.4" W x .9" H
(8.1 cm x 11.2 cm x 2.3 cm)
Weight:
4 oz
(.1 kg)
Figure 8. Connecting the test lead from banana jack “E”
on the Calibration Unit to one of the banana jacks on the
Wrist Strap Touch Tester
2. Connect the second test lead to the red 675K banana jack
labeled “A” on the Calibration Unit. Touch the opposite
end of the test lead to test plate on the Wrist Strap Touch
Tester to activate the test. Be sure not to touch the
banana plug or test plate with your skin.
3. Observe the response from the Wrist Strap Touch Tester.
The alarm should sound, and the LOW LED should
illuminate red.
4. Repeat the procedure for test points B (825K), C (8.5M)
and D (11.5M). The expected test results can be found in
the following table.
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Desco.com
TB-2039
Page 3 of 4
© 2012 DESCO INDUSTRIES, INC.
Employee Owned
Limited Warranty
Desco expressly warrants that for a period of one (1) year from the date of purchase Desco Calibration Units will be free of defects in material (parts) and
workmanship (labor). Within the warranty period, a credit for purchase of replacement Desco Calibration Units, or, at Desco’s option, the Calibration Unit
will be repaired or replaced free of charge. If product credit is issued, the amount will be calculated by multiplying the unused portion of the expected one
year life times the original unit purchase price. Call our Customer Service Department at 909-627-8178 (Chino, CA) or 781-821-8370 (Canton, MA) for a
Return Material Authorization (RMA) and proper shipping instructions and address. Please include a copy of your original packing slip, invoice, or other
proof of date of purchase. Any unit under warranty should be shipped prepaid to the Desco factory. Warranty replacements will take approximately two
weeks.
If your unit is out of warranty, call our Customer Service Department at 909-627-8178 (Chino, CA) or 781-821-8370 (Canton, MA) for a Return Material
Authorization (RMA) and proper shipping instructions and address. Desco will quote repair charges necessary to bring your unit up to factory standards.
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 Desco 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.
DESCO WEST
- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178
DESCO EAST
- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website:
Desco.com
TB-2039
Page 4 of 4
© 2012 DESCO INDUSTRIES, INC.
Employee Owned
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