D-R 290
Optical opacity / dust monitor 2nd generation
The D-R 290 has been used successfully for more than 15 years in various applications as reliable and low maintenance opacity / dust monitor. Now the new generation is available.
The D-R 290 is a certified optical transmission monitor to measure the opacity or dust concentration of flue gases with medium to high dust concentrations.
The D-R 290 operates using the double-pass method according to the auto-collimation principle. The light beam traverses the measuring path twice. The attenuation of the light beam by the dust content in the measuring section is measured and evaluated.
Overview
- Continuous and contactless measurement
- Automatic zero and span check
- Automatic measurement and correction of contamination of optical surfaces
- Extremely powerful and stable super-wide band diode (SWBD) light source
- Extremely low-maintenance
- Fail-safe shutters with purge air monitoring as option
- Certified according to EN 15267-3
- Compliant with US EPA 40 CFR 60 PS1 and ASTM 6216
Advantages of the new generation
- Digital Modbus interface according to VDI 4201-3
- Convenient operation with remote access option
- All settings can be changed without opening the device
- Compatible with universal display and control unit D-ISC 100
Applications
Suitable for dust concentration measurement
- on incineration plants
- on power plants
- on cement plants
- in the metal industry
- on plants according to IED 2010/75/EC
- on converter plants and asphalt mixing plants
- on plants for the incineration of biomass
Suitable for measuring the opacity of flue gas
- on plants in accordance with U.S. EPA 40 CFR 60 PS1, special MCOC required
- on cruise and container ships
Suitable for measurement of dust load in warehouses
Technical Data
| Sample gas type | Air, flue gas, non flammable process gas |
| Sample gas temperature | Above dew point up to 250 °C (482 °F) standard, optional up to 1000 °C (1832 °F) |
| Inner duct pressure | -50...+20 hPa (optional higher) |
| Sample gas relative humidity | 0...95% RF, non-condensing |
| Stack/duct inner diameter | 1…18 m (3.3…59.1 ft) |
| Measuring principle | Measuring the optical transmission of visible light which passed a measuring path twice. |
| Conformities | IED 2010/75/EU EN 13284-2, EN 14181 EN 15267-3 40 CFR 60 US EPA PS1 40 CFR 60 US EPA PS11 |
| Certificates | CE, COC QAL1 DIN EN 14181 / DIN EN ISO 14956 / EN 15267-3, MCERTS, Pattern Approval GOST R, Pattern Approval certificate Rep.of Belarus, Pattern Approval Certificate PRC, MCOC 40CFR 60 EPA PS1 |
| Measuring location | In-situ, non-contact |
| Self-check, protective functions | Automatic zero- and span check Automatic soiling correction LED light source: no readjustment needed Automatic fail safe shutter in case of purge air failure (option) |
| System components | D-R 290 M xx2 measuring head D-R 290 R xx2 reflector D-ISC 100 Universal operating and display unit D-BL purge air unit D-R 290 E mounting flange with tube D-SK fail safe shutter (option) Accessories |
| Physical measuring value | Optical density/ extinction, opacity |
| Derived measuring values | Transmission, opacity (SP), extinction, dust concentration in mg/m3, mg/Nm3 (after gravimetric calibration) |
| Measuring range opacity | 0...20% ... 0…100% |
| Output range opacity | Freely programmable |
| Measuring range extinction | 0…0.1 ... 0...2.0 |
| Output range extinction | Freely programmable within the measuring range |
| Measuring range dust concentration | 0…10000 mg/m3 (depending on calibration) |
| Output range dust concentration | Freely programmable within the measuring range |
| Lowest detection limit | 0.75% for measuring range 0...0.1 extinction |
| Combined standard uncertainty acc. to QAL1, DIN EN 14181 | 1.8%, related to the certified measuring end value 15mg/m3 |
| Light source, spectral range | 450…680 nm, SWBD LED white |
| Process connection | Connection flange, bolt circle 100 mm, tube ID = 59 / 83 / 105 mm |
| Digital interfaces | RS 485 Modbus RTU, bi-directional communication Mini-USB (service) |
| Analog outputs | 1x 4-20 mA, 400 Ohm, potential free, assignment programmable |
| Digital outputs | 2x contact NC/NO, max. load 60 VDC / 30 VAC / 0.5 A assignment programmable, typically: maintenance, failure |
| Power supply | 24 VDC, 0.5 A |
| Ambient temperature (operational) | -40…+60 °C (-40…140 °F) |
| IP protection class (IEC 60529) | IP65 |
| EX zone | Option: Ex II 3G Ex pz II T4, Ex II 2G Ex px II T4 |
| Dimensions (hxwxd) | 370 x 190 x 400 mm |
| Weight | 10 kg |
| Material | Aluminum, painted blue RAL 5017 |
| Process connection | Connection flange, bolt circle 100 mm, tube ID = 59 / 83 / 105 mm |
| Ambient temperature (operational) | -40…+60 °C (-40…140 °F) |
| IP protection class (IEC 60529) | IP65 |
| Dimensions (HxWxD) | 370 x 190 x 270 mm |
| Weight | 7 kg |
| Material | Aluminum, painted blue RAL 5017 |
| Electrical connections | 1x Mini-USB 1x DURAG device connector M23 (option) |
| Digital interfaces | 1x USB (service) 1x DURAG Modbus 1x Modbus RTU / RS-485 (optional extension module) 1x Profibus DP (optional DIN rail converter) 1x Modbus TCP (optional software module) |
| Analogue outputs | 1x 4...20 mA, 400 Ohm, isolated, assignment programmable up to 17x with extension modules (option) |
| Analogue inputs | None (standard) 16x with extension modules (option) 0…20 mA, 50 Ohm, zero point programmable |
| Digital outputs | 3x relais output, contact NC/NO, permissible load 48 V, 0,5 A potential free, assignment programmable up to 35x by extension modules (option) |
| Digital inputs | 1x digital input (standard), potencial free, assignment programmable up to 33x by extension modules (option) |
| Power supply | 90...264 VAC, 48...62 Hz, 200 VA |
| Display, status LEDs | Graphical LC display 120 x 92 mm, 5 LEDs for status display |
| Operation | Keypad Service software D‑ESI 100, including remote access via web-interface (option), requires PC with Windows XP® or Windows 7® OS Remote access via USB / Modbus RTU (option) / Modbus TCP (option) |
| Ambient temperature (operational) | -20 ... +50 °C (-4 ... 122 °F) -40 ... +60 °C (-40 ... 140 °F) (option) |
| IP protection class (IEC 60529) | IP65 |
| Relative ambient humidity | ≤ 95% RF, non-condensing. Use weather protection hood for ≥ 95% RF |
| Altitude | ≤ 2000 m |
| EX zone | Zone 2 (option) |
| Dimensions (hxwxd) | 220 x 335 x 145 mm 286 x 335 x 145 mm (incl. cable glands) |
| Weight | approx. 5 kg |
| Material | Stainless steel 1.4301, painted blue RAL 5017 |
| Power supply | 115 / 230 VAC, 50 / 60 Hz, others on request |
| Power consumption | 0.37 kW (50 Hz) / 0.43 kW (60 Hz) |
| Air supply capacity | 40 m3/h (50 hPa) / 60 m3/h (25 hPa), others on request |
| Ambient temperature (operational) | -20…+50 °C (-4…122 °F), optional higher |
| IP protection class (IEC 60529) | IP55 |
| Dimensions (HxWxD) | 480 x 450 x 320 mm |
| Weight | 12 kg |
| Material | Stainless steel 1.4301 |
- The suitability of the D-R 290 for the listed ranges depends on the kind of dust, the size distribution and the duct diameter.
- Subject to technical modifications.