19280 DESCO | Alldatasheet
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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-3069 Page 1 of 7 © 2016 DESCO INDUSTRIES, INC. Employee Owned Combo Tester Installation, Operation and Maintenance
Description
The Desco Combo Tester verifies the functionality of an operator’s wrist strap and footwear (footwear test requires foot plate). It determines if an operator’s wrist strap and footwear will function correctly. A rocker switch allows the operator to select a wrist strap or footwear test. A green light indicates that the wrist strap or footwear is passing. Red and yellow lights plus an audible alarm indicate when the wrist strap or footwear is failing. If failure occurs, the tester will also display if the grounding device’s resistance is too low or too high. The Combo Tester may also be used to test smocks or garments that feature a grounding mechanism for operators using a coiled cord connection. The factory test limits are set to: Wrist Straps: 750 kilohms and 10 megohms Footwear: 750 kilohms and 100 megohms Limits meet the required limits for Compliance Verification of ANSI/ESD S20.20 (Wrist Strap System < 3.5 x 10 7 ohms and Footwear < 1 x 109 ohms tested per ESD TR53). Contact Desco Customer Service if custom test limits are required. The Combo Tester can be powered by a 9 volt battery or the Desco 98256 (120VAC) and 98257 (220VAC) power adapters (sold separately). A warning light on the tester indicates when the battery power is too low and affecting the test results. Each Combo Tester is calibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology (NIST) and includes a NIST certificate. September 2016 Per ANSI/ESD S20.20 section 7.4 “A Compliance Verification Plan shall be established to ensure the Organization’s 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.” Additional User Wrist Strap Testing “Proper testing of the wrist strap includes the resistance of the groundable point on the end of the cord, the cord itself, the resistor, the cord-to-cuff snap connector, the resistance of the interface of the cuff, the cuff/wrist interface, and the resistance of the person between the wrist and the hand that contacts the test electrode.” Wrist Strap Ground Cord “At first glance, the ground cord appears to be a relatively simple assembly. However, the design requirements are considerable, given the wide range of user applications and the durability requirements of constant tugging, flexing, and dragging over the edge of workstation tops and equipment chassis.” Item Description
19280 Combo Tester
19282 Combo Tester with Stand and Foot Plate
19283 Combo Tester with Stainless Steel Foot Plate
19261 Combo Tester Mounting Plate
98254 Stand and Foot Plate
98273 Stainless Steel Foot Plate
98256* Power Adapter, 120VAC Input, 6VDC Output 98257* Power Adapter, 220VAC Input, 9VDC Output *Use only the Desco 98256 and 98257 power adapters with the Combo Tester. Using any other power adapter may damage the unit and void the warranty. TECHNICAL BULLETIN TB-3069 Made in the United States of America Figure 1. Desco 19280 Combo Tester
© 2016 DESCO INDUSTRIES, INC.
1 Combo Tester
1 Foot Plate Cord, 5 inches
1 Certificate of Calibration
19282 COMBO TESTER WITH STAND AND FOOT
1 Foot Plate Ground Wire, 5 inches
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
19283 COMBO TESTER WITH STAINLESS STEEL
1 Stainless Steel Foot Plate
1 Foot Plate Cord, 6 feet
Figure 2. Desco 19282 Combo Tester with Stand and Figure 3. Desco 19283 Combo Tester with Stainless
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 4. Desco 19261 Combo Tester Mouting Plate
© 2016 DESCO INDUSTRIES, INC. Figure 7. Combo Tester features and components B. Test Result LEDs: Displays the test results. single-wire wrist cord here to test your wrist strap. power is low and needs to be replaced. Figure 5. Desco 98254 Stand and Foot Plate Figure 6. Desco 98273 Stainless Steel Foot 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 TB-3069 Page 7 of 7 © 2016 DESCO INDUSTRIES, INC. Employee Owned Limited Warranty, Warranty Exclusions, Limit of Liability and RMA Request Instructions See Desco Terms and Conditions Specifications COMBO TESTER Power Supply 9V Alkaline Battery or optional AC power adapter Operating Temperature 32°F to 104°F (0 to 40°C) Wrist Strap Test Limit: 750 kilohms to 10 megohms Footwear Test Limit: 750 kilohms to 100 megohms Test Accuracy: ±20% Test Voltage 4 VDC Dimensions 3.3" x 5.6" x 1.5" Weight 0.5 lbs STAND AND FOOT PLATE Stand Height 36" Foot Plate Dimensions 18" x 12" x 1" Weight 8.0 lbs STAINLESS STEEL FOOT PLATE Dimensions 20" x 20" x 0.5" Weight 5.5 lbs