TECHNICAL BULLETIN TB-3069 Combo Tester Installation, Operation and Maintenance Made in the United States of America Per ANSI/ESD S20.20 section 7.4 A Compliance Verification Plan shall be established to ensure the Organizations fulfillment of the technical requirements of the ESD Control Program Plan. Process monitoring (measurements) shall be conducted in accordance with a Compliance Verification Plan that identifies the technical requirements to be verified, the measurement limits and the frequency at which those verifications shall occur. The Compliance Verification Plan shall document the test methods and equipment used for process monitoring and measurements. The test equipment selected shall be capable of making the measurements defined in the Compliance Verification Plan. Per ANSI/ESD S1.1 Annex A.3 Frequency of System Testing The wrist strap system should be tested daily to ensure proper electrical resistance. Figure 1. Desco Combo Tester Per ESD Handbook ESD TR20.20 section 5.3.2.4.2 Additional User Wrist Strap Testing Proper testing of Description the wrist strap includes the resistance of the groundable point on the end of the cord, the cord itself, the resistor, The Desco Combo Tester verifies the functionality of the cord-to-cuff snap connector, the resistance of the an operators wrist strap and footwear (footwear test interface of the cuff, the cuff/wrist interface, and the requires foot plate). It determines if an operators wrist resistance of the person between the wrist and the hand strap and footwear will function correctly. A rocker that contacts the test electrode. switch allows the operator to select a wrist strap or footwear test. A green light indicates that the wrist strap Per ESD Handbook ESD TR20.20 section 5.3.2.2.2 or footwear is passing. Red and yellow lights plus an Wrist Strap Ground Cord At first glance, the ground cord audible alarm indicate when the wrist strap or footwear is appears to be a relatively simple assembly. However, failing. If failure occurs, the tester will also display if the the design requirements are considerable, given the grounding devices resistance is too low or too high. wide range of user applications and the durability requirements of constant tugging, flexing, and dragging The Combo Tester may also be used to test smocks over the edge of workstation tops and equipment or garments that feature a grounding mechanism for chassis. operators using a coiled cord connection. The factory test limits are set to: Item Description Wrist Straps: 750 kilohms and 10 megohms 19280 Combo Tester Footwear: 750 kilohms and 100 megohms 19282 Combo Tester with Stand and Foot Plate Limits meet the required limits for Compliance 19283 Combo Tester with Stainless Steel Foot Plate Verification of ANSI/ESD S20.20 (Wrist Strap System 7 9 < 3.5 x 10 ohms and Footwear < 1 x 10 ohms tested 19261 Combo Tester Mounting Plate per ESD TR53). 98254 Stand and Foot Plate Contact Desco Customer Service if custom test limits 98273 Stainless Steel Foot Plate are required. 98256* Power Adapter, 120 VAC Input, 6.5 VDC Output The Combo Tester can be powered by a 9 volt battery or the Desco 98256 (120 VAC) and 98257 (220 VAC) 98257* Power Adapter, 120 VAC Input, 6.5 VDC power adapters (sold separately). A warning light on the Output tester indicates when the battery power is too low and affecting the test results. *Use only the Desco 98256 and 98257 power adapters with the Combo Tester. Using any other power adapter Each Combo Tester is calibrated with accepted may damage the unit and void the warranty. procedures and standards traceable to the National Institute of Standards and Technology (NIST) and includes a NIST certificate. 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 2021 DESCO INDUSTRIES INC TB-3069 Page 1 of 7 March 2021 Employee Owned19283 COMBO TESTER WITH STAINLESS STEEL Packaging FOOT PLATE 19280 COMBO TESTER 1 Combo Tester 1 Combo Tester 1 Foot Plate Cord, 5 inches 1 Foot Plate Cord, 5 inches 1 9V Battery 1 9V Battery 1 Stainless Steel Foot Plate 1 Certificate of Calibration 1 Foot Plate Cord, 6 feet 1 Certificate of Calibration 19282 COMBO TESTER WITH STAND AND FOOT PLATE 1 Combo Tester 1 Foot Plate Ground Wire, 5 inches 1 9V Battery 1 Foot Plate 1 Pedestal 3 Button Head Screws, 1/4-20 x 3/4 1 Allen Wrench, 5/32 1 Flat Head Screw, 8-32 x 5/8 1 Knurled Nut, 8-32 1 Black Cap 1 Poster 1 Certificate of Calibration Figure 3. Desco 19283 Combo Tester with Stainless Steel Foot Plate 19261 COMBO TESTER MOUNTING PLATE 1 Combo Tester Mounting Plate 4 Pan Head Screws, 4 x 1-1/2 4 Pan Head Screws, 10 x 1-1/2 4 Mounting Anchors Figure 2. Desco 19282 Combo Tester with Stand and Foot Plate Figure 4. Desco 19261 Combo Tester Mouting Plate 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 2021 DESCO INDUSTRIES INC TB-3069 Page 2 of 7 Employee Owned