Stahl offers the type 8485 and type 7485 grounding monitoring devices, which ensure the safe elimination of electrostatic charges during the loading and unloading of combustible liquids or powders from tank vehicles. This solution continuously monitors the connection between the grounding monitoring device and the grounded object. Impaired or broken connections due to cable damages or operating errors are detected and signaled via a red indicator lamp. Two relay contacts allow for an automatic interruption of the loading process. Both types are equipped with an IP65 housing and are respectively designed for use in zone 1 and 2 as well as zone 21 and 22 hazardous dust atmospheres.
Safe Electrostatic Grounding
