Ground bond tester ID-471A series

industrial

The ID-471A Conduction to Ground monitor is an essential piece of equipment necessary for screening personnel and establishing the effectiveness of their conductive footwear. Testers can be supplied in a number of configurations with critical resistance settings of either 1000MΩ (109) or 100MΩ (108). The ID-471A Conduction to Ground Monitor is a control and display unit which is usually mounted on a wall at about shoulder height. This unit is connected by cable to a stainless Steel plate on the ground just in front of the wall-mounted unit. By standing on the métal plate and holding the test handle on the wall unit the monitor circuit is activated and the electrical résistance is measured between the hand and the floor plate. In a number of industrial operations it is essential for personnel to be effectively bonded to ground at ail times to prevent electrostatic spark discharges damaging sensitive electronic components or circuits, or causing ignition of flammable vapours or materials. Bonding to earth may be conveniently achieved via conductive footwear, but it is necessary to know if this bonding remains effective in practice. The ID-471A Conduction to Ground Monitor provides a simple to use and robust unit for checking the effective résistance between an operator and ground. The unit can be mounted at the point where personnel enter a hazardous area from a safe area, and may be used to prevent entry of staff with inadequately conductive footwear. There are two versions of the ID-471A available, the ID-471A/BS and the ID-471A/EN.