4B Components Ltd.

Rotech encoder
The Rotech encoder protects equipment and personnel from dangerous underspeed and belt-slip conditions in extreme environments. It is constructed of heavy-duty stainless steel, and requires no guards, since its rotating components are encased inside the housing. The encoder is also suitable for speed control, rotation direction detection, gate position indication, and revolution counting applications. The unit is available in intrinsically safe and Class II Div. 1 versions.

HotBus digital serial communication system
The HotBus digital serial communication system offers customers a cost-effective approach to continuous bearing-temperature monitoring. With up to 256 bearing sensors on a single twisted pair cable, installation is easier and maintenance free. The system allows complete control with user-adjustable relative ambient and absolute trip points for each sensor. HotBus Control units can be standalone or connected to relay control units to provide automatic machine shutdown. Ethernet, Modbus, and Device Net Gateways are also available for connection to existing networks. Software is provided for system test, system status and uploading of meaningful sensor names and logging/trending bearing temperatures and alarms. The HotBus system can also accept TouchSwitch and other switched contact inputs on the same network.