The Durag D-R 216 Opacity Monitor is a reliable system for monitoring dust emissions on small plants. The instrument applies the 2-beam alternate light method following the autocollimation principle, ie. the light beam crosses the measuring section twice. The unit measures and evaluates the light beam's weakening cause by the dust content within the measuring section.
The Durag D-R 216 Opacity Monitor has the following features:
- In-situ measurement directly in the flue gas flow
- Digital operation with microprocessor
- Adjustable limit value
- Contact switch outputs for pre-alarm and auto-power off
- Switchable measuring value integral 8/64 seconds