The basic broken bag detector

DUSTY is a filter guard, working on the principle of triboelectronic technology.
The Dusty has been designed for reliable broken bag detection without delay. The user will be immediately informed if there are possibly defects at the dust filter.

Dusty is usable in all metallic channels in which dust particles should be detected


  • Detects all dust types
  • Electronic alarm output
  • Usable in clean gas and dust channels
  • Very simple and fast retrofitting
  • Immediate detection of filter damages
  • Uncomplicated commissioning (Plug & Play)
  • Excellent price / performance ratio
  • Easily expandable to 4 ... 20 mA output (trend signal)
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  • Technical Specifications
  • Applications
  • Operating Principle
  • Literature
  • Measurement Range : From 0.1 mg/m³
  • Process temperature : Max. 140 °C
  • Ambient temperature : - 20…+ 60 °C
  • Pressure : max. 2 bar
  • Gas velocity : Min. 4 m/sec
  • Output signals : 2 solid switching contact states
                                3-colour LED in the front cover
  • Power Supply : 24 V DC ± 10 %
  • Power Consumption : 1 W
  • Sensor Rod : Total length: 260 mm, length of stainless steel rod: approx. 194 mm
  • Enclosure : Aluminium
  • All Clean Gas & Dust Conduits

The “Dusty” uses the tried and tested triboelectric principle. This means that as soon as moving, electrically charged dust particles impact the sensor or fly past it, an electric charge, transfer of the particles to the sensor rod takes place.  These very small signals are reinforced in the electronics and thus made visible.

The Dusty is a compact device that operates on 24 V DC supply voltage.