DURAG D-R 290 Double path dust measuring system
For continuous, contactless dust and opacity measurement at medium to high concentrations in dry flue and process gases. Also suitable for difficult plant conditions.
Functionality: Transmission
Features :
- Continuous dust measurement
- Smallest certified measuring range 0 … 15 mg/m3
- Automatic measurement and correction of contamination
- Automatic check 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
Applications :
- Emission measurement of dry flue gases at the stack
- Temperatures up to 1,000 °C
- Corrosive flue gases, plants with complex gas matrix
- Measurement of dry process gases
Technical data :
| Measuring principle | Transmission, contactless and in-situ measurement |
|---|---|
| Measuring variable | Extinction, opacity, calibratable as dust concentration in mg/m³ |
| Measuring range | Opacity: Minimum 0 … 20%, maximum 0 … 100%Extinction: Minimum 0 … 0.1, maximum 0 … 2.0Dust concentration: Minimum 0 … 80 mg/m³, maximum 0 … 4,000 mg/m³ |
| Certified measuring range | 0 … 15 mg/m³ |
| Ambient conditions | Installation location: Indoor or outdoor installation**Temperature:-40 … +60 °C-30 … +60 °C (ATEX)-20 … +60 °C (IECEx) |
| Operating conditions | In duct:Temperature: Maximum 250 °C, optional: 1,000 °CRelative humidity: 0 … 95%, non-condensingRelative pressure:-50 … +20 hPa-50 … 0 hPa (ATEX/IECEx) |
| Inner duct diameter | 0.5***… 18 m |
| Interface* | Analogue output: 1x 4 … 20 mA, maximum 400 Ohm, potential-free (various parameters adjustable)Digital output: 2x NC/NO, maximum 60 VDC, 30 VAC, 0.5 A (various parameters adjustable)RS 485 Modbus RTU, USBStatus display: LED |
| Operation and display | Software D-ESI 100*** orOperating unit D‑ISC 100 |
| Check functions | Automatic zero point and reference point measurement, automatic contamination measurement and compensation |
| Light source | LED, 450 … 680 nm |
* Additional interfaces with D‑ISC 100 operating unit
** Weather protection cover required for outdoor installation
*** Measuring section > 1 m
