TECHNICAL BULLETIN TB-2020 90P1 Foot Grounders - Grounding, Made in the Testing, and Maintenance United States of America LISTED Cleaning Description These foot grounders include Foot grounders are to ground static charges, while Descos complete line of foot grounders has been a molded external resistor dirt generally provides an insulative layer adversely created to provide a continuous ground path and a permanently effecting reliability. For proper operation, the Foot between the operator and a properly grounded attached grounding tab. Grounder and its conductive strip must be kept ESD protected flooring. Foot grounders are clean. designed for use in applications where user mobility 1. Place foot is required, such as wave solder, kitting, and quality grounder on the shoe The rubber portion of the Foot Grounder should control. Per ANSI/ESD S20.20 Paragraph 6.2.2.2, so that the blue lining be cleaned using Descos Reztore Antistatic ESD protective flooring used with approved is making contact Surface & Mat Cleaner or Static-Wipes wipers. footwear, may be used as an alternative to the with the shoe. An alternative would be to clean using isopropyl wrist strap system for standing operations. Foot alcohol. The Desco cleaning products are specially grounders quickly and effectively drain the static 2. Insert the grounding GROUNDING formulated for cleaning ESD control components TAB charges which collect on personnel during normal, tab inside and are silicone free. This is critical as silicone is an everyday activities. of the shoe and under insulator. Desco ESD cleaners should not be used to the foot. Make sure clean the nylon polyester grounding tab. General Guidelines that a solid contact Foot Grounders can be safely hand or machine is made between 1. It is recommended that foot grounders be worn washed on gentle cycle. Mild detergents, such as the sock and body. on both feet, in order to assure that a continuous Woolite or a liquid dish washing product and warm Cut grounding tab path to ground is maintained. water are recommended. However, care must be to desired length. 2. Grounding tabs should be tucked inside the taken to ensure that these detergents are silicone shoe with as much contact area as possible to free. 3. Pull the bottom of the stockinged foot. Foot grounders the strap rely upon the perspiration in the shoe to sustain Installation through the D-ring and electrical contact between the conductive grounding clinch down for a snug, HOOK & LOOP AND MARR RESISTANT tab and the body. comfortable fit. HEEL GROUNDERS Desco model 07560, 17200, 17202, 17250, 17252, 3. Foot grounders should be used in conjunction 4. Test each foot and 17260 heel grounders are designed for use on with floor surfaces which have a surface resistance grounder to confirm standard shoes. All Desco foot grounders can be of less than 1 x 10E9 ohms. proper installation. easily adjusted to fit the individual wearer. Desco 4. A current limiting one or two megohm resistor in heel grounders have a dissipative lining that will not series with the grounding tab is recommended. HEEL GROUNDER WITH SNAP-LOC mar white or light colored shoes. Models 07560, FASTENING SYSTEM 17200, 17202, and 17252 have a current limiting one The Desco model 07515 heel grounders or two megohm resistor in series with the grounding are equipped with a Snap-Loc quick release tab. Models 17250 and have no resistor. fastening system. The model 07515 has a cup 1. Place the foot grounder on and lining that will not mar shoes or floors. The the shoe so that the lining is 07515 has a molded exterior 2 megohm resistor. making contact with the shoe. GROUNDING 1. Insert the grounding tab inside 2. Insert the grounding TAB of the shoe and under the foot. tab inside of the shoe Make sure that a solid contact is and under the foot. made between the sock Make sure that a solid contact and body. Cut 19252 19253 is made between the sock and grounding tab to body. Cut grounding tab to Testing Your Foot Grounders desired length. desired length. The best test of your foot grounder is one that includes all three components: the individual foot 2. Fit the grounder, the grounding tab and the interface heel cup snugly to shoe and between the grounding tab and the wearers 3. Fasten hook and loop connect the Snap-Loc fastener sweatlayer. straps together, securing together. Adjust elastic strap foot grounder firmly on for comfortable fit. Tuck excess Desco has testers designed to properly test foot shoe. elastic strap behind itself. grounders. For more detailed information on these 4. Test each foot testers, ask for technical bulletins TB-2040 (19252, grounder to confirm 19253). 3. Test each heel grounder to confirm proper proper installation. If you obtain a fail reading from the tester you installation. should stop working and clean the foot ground and D-RING HEEL GROUNDERS grounding tab. Retest after cleaning. If the unit still HOOK & LOOP TOE GROUNDERS Desco model 07590 heel grounders are equipped fails, replace the foot grounder. Retest the system Desco model 17222 toe grounders are with an elastic D-ring fastening system which before beginning work. designed for use on heeled shoes. Desco provides snug cinching of the ankle strap and allows toe grounders have a lining that prevents flex during walking. They are designed for use on marring on white or light colored shoes. most types of shoes and boots. The light blue lining Model 17222 has a current limiting prevents marring on white or light colored shoes. one megohm resistor in series with the grounding tab. 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: 1. Place the sole grounder 1. Place the toe grounder on 1. Place the sole grounder on the shoe so that the the shoe so that the on the shoe so that the lining is making contact lining is making lining is making contact with the shoe. contact with the with the shoe. shoe. 2. Insert the grounding tab 2. Insert the ground- GROUNDING inside of the shoe and TAB ing tab inside of the 2. Insert the grounding under the foot. Make shoe and under the tab inside of the shoe sure that a solid contact foot. Make sure that and under the foot. is made between the sock a solid contact is Make sure that a and body. Cut grounding tab made between the solid contact is made to desired length. sock and body. Cut between the sock and grounding tab to body. Cut grounding 3. Pull the strap through desired length. tab to desired length. the D-rings and cinch down for a snug, 3. Pull fabric strap through cam and com fortable fit. lock in place. This will secure toe grounder firmly on shoe. 4. Test each foot 4.Test each toe ground to grounder to confirm Snap-Loc Fastening System confirm proper installation. proper installation. 3.Connect the Snap-Loc fastener together. Adjust elastic strap for comfortable fit. Tuck FULL COVERAGE GROUNDERS excess elastic strap behind itself. Desco model 17290, 17291, and 17292 full 4. Test each heel grounder to confirm proper D-RING TOE GROUNDERS coverage grounders are designed for use on installation. Desco model 07595 toe grounders with the standard shoes. They can be easily adjusted to elastic D-ring fastening system are designed for fit the individual wearer. They have a lining that use on heeled shoes. Desco toe grounders have DISPOSABLE FOOT GROUNDERS will not marr most footwear. These foot grounders a blue lining that will prevent marring on white or 1. Insert the conductive grounding tab inside the have a discrete one megohm resistor built into the light colored shoes. These toe grounders include shoe and under the foot. grounding tab. a molded external 2 megohm resistor and a 2. Pull front and side extension tabs securing Full 1. Place the permanently attached grounding tab. Coverage Foot Grounder full coverage GROUNDING around the periphery of 1. Insert the grounding tab inside grounder on the TAB shoe positioning straps of the shoe and under the foot. shoe so that the near heel and ball of foot. Make sure that lining is making 3. Then, tuck excess a solid contact contact with the conductive is made shoe. grounding tab between the into the shoe. sock and body. 2. Insert the grounding Cut grounding tab inside of the shoe 4. Test each foot tab to desired and under the foot. Make grounder on an length. sure that solid contact is ESD footwear tester made between the to confirm proper 2. Place rubber toe stockinged foot and installation. material under toe grounding tab. Cut area of shoe sole. Pull grounding tab to desired strap over top of shoe length. and cinch down until snug. Install so that the 3. Connect the snap- lined surface is making ATTENTION: This product is not recommended loc fastener together. contact with the shoe. for use on equipment with operating voltage Adjust elastic strap for exceeding 250 VAC. comfortable fit. Tuck 3. Pull elastic strap around the excess elastic strap CAUTION: The ESD Series is for electrostatic back of the heel. Adjust D- behind itself. control. It will not reduce or increase your risk of ring plastic loop for a receiving electric shock when using or working comfortable fit. 4. Test each full on electrical equipment. Follow the same 4. Test each toe coverage grounder to confirm proper installation. precautions you would use without wrist straps, grounder to confirm including: proper installation. Make certain that equipment having a SOLE GROUNDER WITH SNAP-LOC grounding type plug is properly grounded. SOLE GROUNDERS FASTENING SYSTEM Make certain that you are not in contact with Desco model 07501, 07502, and 07503 sole The Desco model 17239 sole grounders grounded objects other than through the ESD grounders are designed for use on standard are equipped with a Snap-Loc quick release Series. shoes. Desco sole grounders are available in fastening system. The model 17239 has a cup three sizes and can be easily adjusted to fit the and lining that will not mar shoes or floors. The individual wearer. Sole grounders have a lining 17239 has a molded exterior 2 megohm resistor. Limited Warranty, Warranty Exclusions, Limit of that prevents marring on white or light colored Liability and RMA Request Instructions shoes. Models 07507, 07508, and 07509 also See Descos Terms and Conditions - have a non-marring exterior to prevent marks on