The main components of the monitoring system are infrared transmitters and receivers that are installed on the cyclone walls. The measuring principle uses an infrared signal which penetrates the material flow and is detected by the receiver.

As soon as an accumulation of material occurs, the infrared signal is interrupted and the receiver does not detect the infrared signal any more. A message is immediately output for the operator, and the material flow leading to the cyclone is shut down automatically. To avoid that momentary increases in material density lead to an immediate shut-down, an alarm threshold is integrated in the system. Thus, the reaction time of the system can be flexibly adjusted.

Your Benefit

Measuring Principle

The ABC 7 control console is the core of the cyclone blockage detector. It collects the measuring signals of the individual monitoring zones of different cyclones. Upon material accumulation in one of the connected cyclones, the operators are informed immediately, and the conveyor fans in the corresponding areas shut down via voltage-free relay outputs.

Thanks to a modern plug-in card system, the modular control console can be equipped for the monitoring of up to 12 cyclones. Special infrared transmitters are used to generate a stable infrared signal. Receivers using a highly sensitive electronics detect the infrared signal.

The combination of both components guarantees a perfect operation, even for big cyclones with long distances between transmitter and receiver. Two types of transmitters and receivers are available for different applications.

For process temperatures below 60 °C, the transmitters and receivers are installed directly on the cyclone wall. In areas of high process temperatures, such as material drying processes, the transmitters and receivers are connected with the cyclone via fibre optic cables. Thus, the electronics is separated from the high working temperatures in the installation position. Additional cooling measures are not necessary.

Infomaterial