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CEM SPECIALTIES INC.
1100 Dearness Drive
London, Ontario
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PRODUCTS
- Opacity Monitors
DURAG
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| Description: |
 The
D-R 290 has been designed to monitor
dust and opacity concentration in
industrial plants with large duct
diameters. It works according to the autocollimation
principle and is approved according
to the German Clean Air Regulations
and U.S. EPA. |
| Applications: | Dust concentration and opacity monitoring even at large duct diameter |
| Compliance: | TÜV and U.S. EPA approved |
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Measuring range: |
 Opacity: 100... 0%; adjustable;
smallest range 0...20%Extinction: 0...1.6; smallest range 0...0.1 Dust concentration: Ranges: @1m stack ID: 0...150/5000 mg/m3; @5m stack ID: 0...30/1000 mg/m3 |
| Flue gas temperature: | Above dew point, up to 250°C, higher on request |
| Accuracy: | < 2% FS |
| Measured components: | Opacity, Extinction, dust concentration in mg/m3 |
| Measuring principle: | Transmission |
| Measuring path: | 1.0 ... 12 m; depending on type of reflector |
| Measuring output: | 2 analog outputs 0/4...20 mA |
| Interfaces: | RS 485 Modbus RTU as an option |
| Protection: | IP 65, optional EEx p |
| Ambient temperature: | -20°... +50°C |
| Status/control signals: | Relay outputs and potential free inputs for status signals |
| System components: | Transmitter/Receiver unit, reflector, control unit, one purge air blower |
| Test functions: | Automatic zero and span check point |
| Comments: | Large stack diameter up to 12 m; Automatic control cycle consisting of zero, window and span check; EPA display of stack correction factor |
| Download: | DR290 Brochure |
