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

© 2012 DESCO INDUSTRIES, INC.

Employee Owned

Made in the

United States of America

Calibration Unit for Testers

Installation, Operation and Maintenance

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:

July 2012

Figure 1. Desco 07010 Calibration Unit

Packaging

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.

TECHNICAL BULLETIN TB-2039

Item

Description

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

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

Point

Resistance

Value

Test Output

A

675K

FAIL LOW

B

825K

PASS

C

8.5M

PASS

D

11.5M

FAIL HIGH