DURAG D-R 820F Dust Monitor
Extractive measurement of wet flue or process gases. For monitoring small to medium dust concentrations.
Functionality: Forward scattering
Features :
- Dilution of the sample
- Hyperkinetic gas extraction
- Single-sided installation on stack
- Automatic zero point and reference point check
- Automatic measurement of contamination and correction of measured values
- Local control panel and LC display
Benefits :
- Suitable for plants with variable gas velocity
- Long life time due to stable laser light source
- Easy commissioning, adjustment and maintenance without PC
Applications :
- Emission measurement of wet flue gases
- Measurement of wet process gases with small to medium concentrations
Technical data :
| Measuring principle | Extraction of sample gas, dilution and heating for evaporation of H2O, forward scattering, single-sided installation |
|---|---|
| Measuring variable | Stray light units, calibratable as dust concentration in mg/m³ |
| Measuring range | Minimum 0 … 15 mg/m³Maximum 0 … 200 mg/m³ |
| Certified measuring range | 0 … 15 mg/m³ |
| Ambient conditions | Installation location: Indoor or outdoor installation*Temperature: -20 … +50 °C |
| Operating conditions | In duct:Temperature: -25 … 220 °CRelative humidity: > 95 %, maximum 30 g/m³ H2O as aerosolRelative pressure: -30 … +2 hPa |
| Inner duct diameter | Minimum 0.4 m |
| Interface | Analogue output: 4x 4 … 20 mA, maximum 1,000 Ohm, potential-freeDigital output: 4x NC/NO, maximum 35 VDC, 0.4 A |
| Operation and display | Supply and display unit on the measuring device |
| Check functions | Automatic zero point and reference point measurement, automatic contamination measurement and compensation |
| Light source | Laser diode, red, 650 nm |
* Weather protection cover required for outdoor installation
