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Particulate Monitors

+44 (0)1280 850 521

Controlling Dust and Particulate Emissions in Industry and at Sea

Designed for monitoring dust and particulate concentrations in the exhaust gas of industrial combustion or air filtration processes, our range of low cost / low maintenance particulate monitors offer the ideal solution to your emissions monitoring or process control requirement.

Easy to install, simple to use, and available in a variety of different models and configurations, particulate monitors from Dynoptic are used in a variety of different applications including:

  • Boilers
  • Diesel Engines
  • Wood Burners
  • Furnaces
  • Electrostatic Precipitators
  • Filter Bag Houses
  • Incinerators
  • Crematoria


Our continuous particulate monitors use either the standard obscuration opacity technique with automatic zero and span checking, or the innovative DDP (sometimes called scintillation) technique which eliminates the need for zero and span checking through an immunity to drift with dirty optics. They determine particulate concentrations (mg/m³) in a duct, stack, exhaust or flue - typically the exhaust gas from an industrial combustion process or air filtration system.

We offer a flexible range of interface and output options including alarm level relay contacts with programmable delay, isolated and scalable 4-20mA outputs, ModBus serial communications, and “walk up” USB connections. Available with or without a control unit (which is available in a variety of enclosure styles) our particulate monitors can be easily integrated into a ModBus multi-drop system, and all our instruments are supplied with free utility software for use on a PC or laptop computer.

Particulate monitor

Our particulate monitors have no moving parts, are of rugged design, and have an excellent reliability record. Regular maintenance simply involves cleaning the TX and RX lenses, which are easily accessible due to our latched head design. Both the TX and RX are supplied with an air purge body which when connected to a high volume source of clean air (a blower is recommended) will resist particle deposition on the lenses and further lengthen service intervals.

Further details

Compare our range of particulate monitors in the table below...

  Measures particulate in mg/m³ Measurement technique: DDP Measurement technique: Opacity Manual cal check option Automatic cal checking Single pass Double pass US EPA compliant Chinese EPA compliant
DSL-240 tick tick       tick      
DSL-340 tick tick   tick     tick   tick
DSL-900 tick   tick   tick   tick tick  

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DynOptic Systems Limited Furlong House, Crowfield, Brackley NN13 5TW, UK
t +44 (0)1280 850521 f +44 (0)1280 850568 e contact@dynoptic.com

© 2009 Dynoptic Systems Ltd, Reg England, No. 1950437
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