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FS-750E Dust Monitor Analogue Output


  • Maintenance free
  • Analog output of the particle load as a 4-20mA signal
  • Condition indication by different LED colors
  • Protection class IP65
  • Compact form
  • Easy installation

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Product Description

Purpose of the FS-750E Dust Monitor 

The dust indicator FS750E is intended for the use at the clean air side to detect dust behind a filter. In this way, filter cracks, fractures or assembly errors are reported automatically and reliably.

Installation of the Dust Indicator

The FS750E dust monitor is suitable for all piping and metallic channels, whose length exceed 3 times the diameter. Installation is quick and easy by welding a threaded sleeve. The sensor rod is inserted into the pipe and fixed by the thread.

The sensor rod length should be at least 1/3 of the pipe diameter and must not touch the opposite wall. A distance of min. 20mm is recommended between the rod end and the opposite wall.

FS-750E Dust Monitor Measurement Principle

The measurement system is based on the triboelectric effect: Particles collide permanently with each other or with other materials, e.g. the wall. Because of this process the particles will be charged in a natural way. If these electrically charged particles are flying next to the sensor rod of FS750E or even touch it, the particles are detected via the charge transfer.

Compatibility of the Broken Bag Detector

Resting particles, such as deposits etc., do not affect the measurement. Therefore a subsequent installation into existing exhaust ducts is possible without any problems. The dust monitoring device cannot be used for material which forms an electrically conductive layer between the sensor rod and inner wall by abrasion or adhesions.

The emerging particle load is output as an analogue 4-20mA signal. Three conditions of particle load are additionally signalized by different LED colours at the sensor.


Dust Monitor Installation Guidelines and Locations

Check out our blog post ‘Particle and Dust Monitoring: Ensuring Air Quality and Safety’ for more information about dust monitoring devices, their applications and benefits.

Particle and Dust Monitoring: Ensuring Air Quality and Safety