Filter-Guard 206

Контроль пылеулавливающих фильтров
Filter-Guard 206


The ADOS Filter-Guard 206 in combination with an evaluation unit continuously monitors the clean air side of any fine dust filter installation.
A warning is initiated when a sudden increase in dust concentration is present, i.e. due to a breakdown in the filter casing or bag.

Measurement range is 0–100 % dust.
Measurement range value – total dust:
0,1 – 20 mg/m3
0,1 – 50 mg/m3
0,1 – 100 mg/m3

Fields of Application

  • Monitoring fine dust filter systems at the clean air side
  • Vibrating and jet filter systems
  • Air extraction installations in wood and plastic processing plants
  • Air conditioning units with dust filter systems
  • Paint and varnish production
  • Ambient air monitoring at workplaces
  • and many more


  • Suitable for various types of dust
  • 4-20mA standard output signal
  • LON® interface (optional)
  • Low current consumption
  • Robust aluminium housing
  • Straightforward installation
  • Easy exchange of the sensor elements

Detectable Types of Dust

Dry dusts:
Wood dust
Household dust
Colouring pigments
Plastic dust
Flour dust
Metallic dust
Mineral dust
and many more

Evaluation Units

Multi-channel installations:
MWS 897
MWS 903
LON®-Center 2000
GW 399
Multitronik MC 602

Technical Data

Measurement principle: optical light dispersion
Fields of application: filtermonitoring for dry, not sticking, not lumping, not hygroscopic substances
Measurement ranges: 0 – 100 % dust
approx. measurement range:
total dust
0,1 – 20 mg/m3
0,1 – 50 mg/m3
0,1 – 100 mg/m3
dependant on the kind of dust at the measuring point
Medium humidity: dry
pure warning function, no metering unit
Ambient temperature: -10 °C to +50 °C
Response time (t90): < 10 s
Installation: flexible flange for output air channel construction
(flat and round channels)
Protection class: IP 54
Output signals: analog output 4 (0)–20 mA
RS 485 / LON®
Voltage supply: 24 V=
Power consumption: 3 VA
(D x L):
50 x 300 mm or
50 x 600 mm (long version)
Weight: approx. 0,95 kg
Trademark right: EU-patent


Signal horns, warning lamps, warning banners, air control accessories, metering units, plotters, data-logger.

Further accessories can be supplied on request, according to the proposed measurement tasks.