TECHNICAL BULLETIN TB-3017 Portable Wrist Strap Tester Made in the Installation, Operation and Maintenance United States of America Installation Open the testers battery compartment and install the included 9V battery. Use the included hook and loop fastener strip to mount the tester to a wall or worksurface. NOTE: The low battery indicator flashes briefly every time the unit is used. Replace the battery once the indicator becomes constant during testing. Operation 1. While wearing a wrist strap, plug the wrist cord into the wrist strap jack located on the face of the Portable Wrist Strap Tester. 2. Push down and hold the test switch until the test results are displayed. Ensure that your finger also makes contact with the metal ring around the pushbutton when performing a test. Figure 1. Desco 19240 Portable Wrist Strap Tester DO NOT touch any other metal while performing your test as this will affect your results. Description 3. A pass test result is indicated by illumination of the Per ANSI/ESD S20.20, test equipment is required to green PASS LED. A fail low test result is indicated enact the Compliance Verification Plan Requirement. by illumination of the red LOW LED. A fail high test Test equipment shall be selected to make result is indicated by illumination of the red HIGH measurements of appropriate properties of the technical LED. requirements that are incorporated into the ESD program plan. The Wrist Strap Tester can be used to If your ESD test fails, check your wrist strap and fulfill ANSI/ESD S1.1, The wrist strap system should ensure that it is being worn correctly and/or needs be tested daily to ensure proper electrical value (Annex to be replaced. A3). Being a portable battery powered tool, it is perfect NOTE 1: The Portable Wrist Strap Tester may briefly for small labs or for a supervisor to spotcheck workers display FAIL HIGH once the test button is released at and/or ensure compliance. the conclusion of a test. Residual voltage in the circuits The Desco 19240 Portable Wrist Strap Tester is a capacitors causes the test to continue for a split second battery operated on demand wrist strap tester. When after the button is released. the wearer of a wrist strap plugs in their coil cord and NOTE 2: Failures may be caused by dry skin or minimal touches the metallic surface of the Wrist Strap Tester, sweat layer. For wrist straps, try using an approved a path for current flow is completed from the wearers dissipative hand lotion such as Menda Reztore ESD skin, through the wrist strap. This action will cause Hand Lotion to your wrist prior to use. the green test good LED to illuminate as long as the resistance of the circuit path is between 750 kilohms and 10 megohms. Packaging 1 Portable Wrist Strap Tester 1 9V Alkaline Battery 1 Hook and Loop Fastener Strip 1 Certificate of Calibration 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 2018 DESCO INDUSTRIES INC TB-3017 Page 1 of 2 July 2018 Employee OwnedSpecifications Power Supply 9V Alkaline Battery Operating Temperature 32F to 104F (0 to 40C) Test Limits 750 kilohms to 10 megohms Test Voltage 4 VDC Dimensions 3.6 x 2.6 x 1.1 (91 mm x 66 mm x 28 mm) Weight 4 oz (113 g) Limited Warranty, Warranty Exclusions, Limit of Liability and RMA Request Instructions See the Desco Warranty - Desco.com/Limited-Warranty.aspx Figure 2. Using the Portable Wrist Strap Tester and recording its results Calibration The Desco Portable Wrist Strap Tester is calibrated to NIST traceable standards. There are no user adjustments necessary. We recommend that calibration be performed annually using the Desco 07010 Calibration Unit. It is a convenient product which allows the customer to perform NIST traceable calibration on single-wire personnel testers. The 07010 is designed to be used on the shop floor at the workstation, virtually eliminating downtime, verifying that the continuous monitor is operating within tolerances. View technical bulletin TB-2039 for more information on the Desco 07010 Calibration Unit and instructions to calibrate the Wrist Strap Tester. Figure 3. Desco 07010 Calibration Unit 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 2018 DESCO INDUSTRIES INC TB-3017 Page 2 of 2 Employee Owned