Durag has decided to discontinue the D-R 220 by 31.12.2024 without replacement.
If you still need the D-R 220, you can order it until 30.09.2024.
Repairs, delivery of spares and wear and tear parts will be available for up to 5 years after the date of discontinuation.
The D-R 290 works according to the transmission principle. The measurement is continuous, non-contact and without sampling in the exhaust gas flow. The D-R 290 is particularly suitable for monitoring medium to high dust concentrations.
Air quality monitor with IoT visible opacity and gas sensor for use in tunnels. Visibility measurement is based on the scattered light principle, gas measurement with up to 3 electrochemical cells.
The DURAG D-R 220 was a compact and cost effective transmittance dust and opacity measuring device for monitoring medium to high dust concentrations in dry flue and process gas.
Key Benefits
- Non-contact measuring method
- Continuous measurement of opacity and dust concentration
- Suitable for medium or high dust concentrations on short to medium measuring lengths
- Automatic internal self-test, zero point and reference point check
- Manual contamination and linearity check
- Extremely low-maintenance due to self-test functions and LED source
- Easy installation and commissioning with universal operating unit and adjustment tool
- Convenient operation including remote access capability
- Cost-effective, small measuring system
- Operation with or without control unit
Applications
Suitable for dust concentration and opacity measurement
- Measurements with variable flow speeds
- Visibility Monitoring
Industries
- Power industry
- Biomass incineration
- Waste incineration
- Cement industry
- Crematories
- Process monitoring
Opacity measurements on ships
- Ro-Ro ships
- Cruise ships
- Container ships
Also suitable for
- Cost effective process monitoring
- Filter monitoring
- Measurement of ambient air dust-load in halls or warehouses
Download Specifications
TECHNICAL DATA
Physical measuring valueTransmission, opacity
| D-R 220 M MEASURING HEAD |
| Derived measuring values |
Opacity (PLC), optical density, dust concentration in mg/m3, mg/Nm3 (after gravimetric calibration), extinction coefficient, visibility |
| Measuring range transmission |
100 … 0% |
| Output range transmission |
Freely programmable |
| Measuring range opacity |
0 … 100% |
| Output range opacity |
Freely programmable |
| Measuring range extinction |
0 … 1.6 |
| Output range extinction |
Freely programmable |
| Measuring range dust concentration |
0 … 5000 mg/m3 (depending on calibration) |
| Output range dust concentration |
Freely programmable |
| Lowest detection limit |
0.2 % transmission |
| Combined standard uncertainty acc. to QAL1, DIN EN 14181 |
less than 0.013 Ext (2 mg/m3 for particle size 1 … 2µm, duct ID 5m (16.4 ft)) |
| Light source |
LED |
| Process connection |
Adjusting flange, bolt circle 100 mm, tube ID = 59 / 83 / 105 mm |
| Purge air connection |
For hose Ø 25 mm |
| Electrical connection |
DURAG standard device connector M23 male |
| Digital interfaces |
RS 485 Modbus RTU, bi-directional communication, USB (Service) |
| Analog outputs |
1 x 4 … 20mA, 400 Ohm, isolated, assignment parameterisable |
| Digital outputs |
2 x contact NO, permissible load 60 VDC / 30 VAC / 0.5 A,
function can be assigned. Typically: maintenance, failure |
| Power supply |
Sensor supply voltage 24 VDC, 0.4 A |
| Ambient temperature (operational) |
-20 … +50 °C (-4 … 122 °F) |
| IP protection class (IEC 60529) |
IP65 |
| Dimensions (HxWxD) |
150 x 132 x 214 mm (150 x 132 x 331 mm with purge air flange) |
| Weight |
2.7 kg |
| Material |
Housing: Polyamide, RAL 5017, fire class B1 (UL 94 V0),
Purge air flange: 1.4571 (316 Ti) |
| D-R 220 R REFLECTOR |
| Process connection |
Adjusting flange, bolt circle 100 mm, tube ID = 59 / 83 / 105 mm |
| Ambient temperature (operational) |
-20 … +50 °C (-4 … 122 °F) |
| IP protection class (IEC 60529) |
IP65 |
| Dimensions (HxWxD) |
126 x 132 x 101 mm (126 x 132 x 218 mm with purge air flange) |
| Weight |
1.6 kg |
| Material |
Housing: Polyamide, RAL 5017, fire class B1 (UL 94 V0),
Purge air flange: 1.4571 (316 Ti) |
