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.