A new era of measuring and control technology

Equipment for hot-water generating units with bus technology

With this product, we are answering to the demand for a high level of detailed information from monitoring systems and for data communication with the central control room, remote maintenance, etc.

Numerous technical innovations considerably simplify plant planning, engineering and commissioning. This system has had an impressive history for more than 20 years, and has set standards in the field of boiler equipment. The values that require monitoring are analysed in the preamplifier of the sensing unit. Following a safety evaluation, a communication processor reliably transmits the analysis via the bus line to the electronic control unit. Here, the boiler is shut down based on the input signals. With this innovative solution, one to four limit sensors can be connected to an electronic control unit. Thanks to continuous monitoring and feedback confirmation of the data protocols, we achieve active cable monitoring with this system. The limiter systems are certified to DIN EN 61508-2 SIL 2.


  • Temperature barrier in the sensor head
  • Electronic thermal fuse in the connecting head
  • Thermal influences are kept to a minimum
  • Easy access to terminals on control devices
  • One cable between the boiler and control cabinet and for all sensors in the cabinet
  • Active cable monitoring
  • Low installation and material costs
  • One operator unit for all bus nodes
  • Optional remote data transmission of all bus data

Prospect SPECTORbus

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