3
1 Introduction
1.1
Safety
Dusty requires 12-24 VDC power supply. 12-24 VDC voltage level is considered as safe.
Precautions:
The duct has to be opened at the installation and the maintenance.
Thereby some risks have to be considered:
• The flow of gas or dust can be hazardous to health.
• The flow can be inflammable, explosive or toxic.
• The gas can be hot or under pressure.
1.2
Product overview
The Dusty is a microprocessor-based, self-adjusting device, equipped with 2 switching contacts and a LED
in the front cover.
The Dusty is designed for filter bag leak detection. It is a compact unit consisting of a sensor and control
electronics built into an IP65 enclosure, which has been specifically designed for easy installation and
operation.
The Dusty is designed for applications at up to 2 bar and 140 °C.
1.3
How does it work
The Dusty works with its proven and reliable triboelectric technology whereby the interaction of dust
particles with the sensor rod causes a small electric charge, when the particles pass by and the sensor rod.
This small electric charge provides the signal to the sensor by the electronics, and the signal generated is
proportional to the dust level even if there is an accumulation of particles on the sensor rod. Experience has
shown that this method of sensoring dust level in gases offers accurate results with a minimum of
maintenance.
