Siemens Industry Sector
The new, heavy-duty motion-sensing switch Sitrans WM100 (photo) is used to detect the absence or presence of motion on rotating, reciprocating or conveying equipment. The devices act as an early warning system to avoid costly process interruptions and equipment breakdowns. Located outside of the process, Sitrans WM100 can be mounted up to 100 mm (4 in.) from the ferrous target. The motion sensors provide the contacts to shutdown machinery whenever zero speed is detected. On belt, drag and screw conveyors, or on bucket elevators, fans and pumps, the zero-speed alarm option can warn of equipment malfunctions. — Siemens Industry Sector, Industry Automation Div., Nuremberg, Germany