On the EDN Network‘s “Rowe’s and Columns” blog, Martin Rowe’s recent post is about the disintegration of his wrist strap. I’ve used ESD wrist straps whenever I work on a computer and have never had an ESD problem, even in dry winter conditions. Today, I needed to open a desktop computer so I reached for…
To claim your free wrist straps, submit your information and a copy of your invoice for your previously purchased 19228. Select one wrist strap kit from the items listed below for each 19228 purchased. This offer is only available for purchases of 19228 made after 2014-03-03. Submit your invoice here. Wrist Strap Kits 09070 Adjustable…
Read more Receive a Free Wrist Strap Kit with Each Multi-Mount Monitor (Item #19228) Purchased
If testing can demonstrate that operator’s resistance path is reliable, it might be OK, but it is certainly not best practice. Alligator clip attached to dissipative mat is not recommended per ESD Handbook ESD TR20.20 wrist strap section 5.3.2.2.2 Wrist Strap Ground Cord: “The groundable end of the cord is most often equipped with a…
Read more Is It OK to Connect Wrist Strap to Mat Using Alligator Clip?
ANSI/ESD S20.20 doesn’t mention hair, but the ESD Handbook ESD TR20.20 does. The general rule from ANSI/ESD S20.20 is in section 8.3. From ESD Handbook ESD TR20.20 mentions “human hair” is near the extreme end of the Triboelectric Series, so it can be high charging. But the above rule would apply; keep hair 12” away…
Read more Should dissipative hats be worn to protect ESD sensitive items from charges on hair?
A leader in manufacturing electronic products in Asia, evaluated Desco Full Coverage Foot Grounder (17290, 17291, and 17292) to determine if they actually outperformed standard heel grounders. The customer was easily convinced that the path-to-ground of a full coverage style foot grounder outperformed a standard heel grounder due to the contact points on both the…
The “standard” resistance value for a wrist strap is to be 1 megohm (+/-20%). Touch-Testers test for this, so should your single-wire constant monitor. One of the ways that manufacturers of low cost continuous monitors cut corners is to not monitor for a current-limiting resistor in the wrist strap system. While there is no industry…
Read more Does your Continuous Monitor Test for a Resistor in the Wrist Strap?
Toby Harvey of HMC Electronics, local distributor in Massachusetts, highlights the most popular Desco foot grounders in this video. Desco 07599 High Visibility Foot Grounder Desco 17200 Velcro® Stretch Hook and Loop Foot Grounder Desco 17271 Full Coverage Non-Marring Foot Grounder Desco stat-A-Rest™ Full Coverage Foot Grounder with Contact Points on Sole and Heel Area…
Read more Local Distributor provides an overview on Desco Heel Grounders
ANSI/ESD S20.20 has three garment categories with the following names and required limits: Category 1 – Static Control Garment < 1 x 1011 ohms Category 2 – Groundable Static Control Garment < 1 x 109 ohms Category 3 – Groundable Static Control Garment System < 3.5 x 107 ohms The primary purpose of a smock…
We see many companies with a conductive tile floors that measures mid-10^5 ohm resistance to ground and the operators are wearing foot grounders on each foot that passes the touch-testing, but what peak voltage on the body is generated? Over the years, there have been independent studies conducted per ANSI/ESD STM97.2, Floor Materials and Footwear…
$3.50 Heel Grounders Use code PromoD396 on your online order. Expires Mar. 5, 2012 40% Off Surface Resistance Tester Use code PromoD397 on your online order. Expires Mar. 5, 2012 25% Off Wescorp ESD Tape Use code PromoD398 on your online order. Expires Mar. 5, 2012 20% Off All Reztore® Mat Cleaners Use code…