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73621 Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers |
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3 / 4 page Installation Follow the directions below for proper installation and grounding of the ESD smock. 1. Put on the smock and fasten all of the snaps on the front of the smock, making sure that clothing is not exposed outside of the smock. 2. Throughout use, it is essential that conductive cuff be in intimate contact with wrist skin; conductive cuff should never be allowed to be pulled up and over shirt sleeve. 3. Install a ground cord to the snap stud located above the left hand hip pocket. Connect the other end of the ground cord to a verified ground point such as a grounding block or common point mat ground. Grounding Integrity Testing For daily testing or monitoring of the grounding integrity of Desco ESD protective smocks and ground cords, we recommend the use of standard wrist strap testers or singlewire workstation continuous monitors. Panel-to-panel conductivity is essential so as not to leave portions of the smock as isolated charged conductors. Panel-to-panel conductivity is easy to test using our Surface Resistance Test Kit Item #19780. Place the two five-pound electrodes on different panels to test. Unless properly grounded, the smocks can hold a charge and become a possible source for discharge to ESD susceptible products. For additional information, refer to ANSI/ESD S20.20, TR20.20, and the ESD Association Garment Standard, ESD-STM2.1. Desco has several testers available for this purpose. For more information ask for specification drawings or operating instruction manuals by item number. TB-2055 Page 3 of 4 © 2011 DESCO INDUSTRIES INC. Employee Owned DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449 DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: Desco.com Figure 5. Testing and monitoring of smock and ground cord assembly YES! YES! NO! NO! Figure 3. Proper installation of smock wearer’s body Figure 4. Grounding the smock Figure 6. Testers The user and the smock will now be properly grounded. The “hip to cuff” grounding feature allows greater freedom of movement of user’s arms and hands, and a reliable path to ground while the ESD smock offers extra protection against damaging electrostatic fields which may be generated by the user’s clothing. NOTE: ANSI/ESD S20.20 REQUIRES THAT THE GROUND CORD SELECTED FOR GROUNDING OF PERSONNEL CONTAIN A BUILT-IN CURRENT LIMITING 1 MEGOHM RESISTOR. Heat Sealed Patches It is possible to heat seal patches to our smocks. The patch should be small and the smock should be tested before and after application. Maintenance For proper operation, the ESD protective smock must be laundered periodically. Woolite works well. Liquid detergents are better than dry in that there is less caking and frictional wear. Launder garment in cool or warm water, tumble dry with low heat or hang dry. Launder the smocks by hand or with a washing machine. Use a standard household machine on gentle cycle or use an industrial machine if “Pony” (typically under 200 pound loads) machines are used. It is not recommended to launder these garments in heavy industrial laundry machines as it will lead to premature wear. Garments should be tumbled dry using low heat. DO NOT USE BLEACH OR FABRIC SOFTENER. 19250 19350 19780 |
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