Durag   Dust and Opacity Monitoring System

 Model # D-R290-II

 The dust monitoring unit was in a regular rotation between two units. We would remove one and send it in for official calibration and put the spare in while it was out for calibration.

The facility closed for economic reasons. This unit was returned from calibration and returned to the storeroom shelves.

 It comes with a warranty, buy with confidence.

  Features:

- Continuous dust measurement 

- Smallest certified measuring range 0 … 15 mg/m3 

- Automatic measurement and correction of contamination of interfaces 

- Automatic control functions 

- Contactless measurement 

- Maintenance and linearity check without disassembly 

Benefits:

-Suitable for official emission monitoring 

- Reliable measurement of medium to large dust concentrations 

- Space-saving and easy installation 

- Long life time and high availability under extreme plant conditions 

- Low maintenance

Technical data:

 Measuring principle: Transmission, in-situ, continuous, contactless measurement 

Measuring variable: Optical density/absorbance, opacity, calibratable as dust concentration in mg/m³ 

Measuring range: Opacity: Min. 0 … 20%, max. 0 … 100% 

Absorbance: Min. 0 … 0.1, max. 0 … 2.0 

Dust concentration: Min. 0 … 80 mg/m3, max. 0 … 4000 mg/m3 Certified measuring range 0 … 15 mg/m3 

Analog output: 1x 4 … 20 mA, max. 400 Ω, potential-free (various parameters adjustable) 

Digital output: 2x NC/NO, max. 60 V , 30 V , 0.5 A (various parameters adjustable) 

RS 485 Modbus RTU, mini USB Nominal voltage 24