Processing Magazine

Advanced-design static grounding clamp serves mobile/portable equipment

January 12, 2010

The clamp creates and continuously monitors a low-resistance connection to ground, while providing visual verification through a flashing LED indicator. It also includes a redesigned electronic module for enhanced battery/working life, effectively doubling the life of a single battery. Users of the new units report up to 12 months of service between battery changes, based on a typical duty cycle of three hours per day, according to the manufacturer. In addition, the new design also includes an in-line quick-connect feature as standard, allowing quick and easy field replacement of the clamp and/or retractable cables should they be damaged in service. The process requires no special skills or tools, eliminating the cost of materials and extensive down-time. The clamp is at home in even the most demanding applications. Its sharp tungsten carbide teeth and unique clamping-action easily bite through insulating layers such as coated surfaces and built-up paint, resins, adhesives common in processing applications. The 304 stainless steel instrument is powered by a long-life lithium battery, mounted internally for ease of installation. It is also dust and water tight and FM, CSA and ATEX approved. Application areas include Class I, Div. 1 and 2 Groups A,B,C,D; Class II, Div. 1 and 2, Groups E, F, G; Class III, T4.