
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
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.
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 4. Connecting the test lead from banana jack “E”
on the Calibration Unit to the WRIST CORD banana jack
on the Combo Tester
Test
Point
Resistance
Value
Test Output
A
675K
FAIL LOW
B
825K
PASS
C
8.5M
PASS
D
11.5M
FAIL HIGH
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 5. Verifying the calibration of the wrist strap
circuit in the Combo Tester
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.