Compact and cost effective transmittance dust and opacity measuring device for monitoring medium to high dust concentrations in dry flue and process gas.
D-R 220 Dust and Opacity Monitor
Description
Compact and cost effective transmittance dust and opacity measuring device for monitoring medium to high dust concentrations in dry flue and process gas.
Overview
- 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
Your Benefit
- Easy set-up for opacity monitoring
No gravimetric calibration needed when using transmission principle for reliable opacity monitoring - Compact and cost effective solution
The smallest available DURAG dust monitor comes with an attractive system pricing - Broad functional range due to dual-path transmission principle
The sensitivity scales up with growing duct diameter. This allows for measuring very low dust concentrations in very big stack diameters and vice versa very high dust concentrations in small stack diameters - Suitable for harsh flue gas conditions
Non-contact measurement with purge air cushion technology allows for very high flue gas temperatures and aggressive flue gases - Designed for a wide range of environmental conditions
Corrosion-free plastic housing and a broad ambient temperature range - Reliable emission monitoring
Automatic control functions ensure reliable measuring values
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
Technical Data
| Flue gas type | Air, flue gas, non flammable process gas |
| Flue gas temperature | Above due point, ≤ 200 °C standard, up to 500 °C option |
| Inner stack/duct pressure (relative to ambient pressure) | -50 … +10 hPa standard, -50 … +50 hPa option |
| Flue gas relative humidity | 0 … 95 % RH, non-condensing |
| Stack/duct inner diameter | 0.4 … 10 m |
| Measuring principle | Measuring the optical transmission of visible light which passed a measuring path twice |
| Certificates | CE, Pattern Approval Certificate PRC |
| Measuring location | In-situ, non-contact. Mounted at stack, measurement across the stack, purged sensors are not in contact with flue gas |
| Self-check, protective functions | LED light source: no readjustment needed Automatic internal self-test Automatic zero and reference point check (option) Manual contamination check and linearity check (option) |
| System components | D-R 220 M measuring device D-R 220 R reflector D-R 220 SPF purge flange D-R 220 CLP clamping ring fastener D-R 220 N zero point reflector (option) D-R 220 E adjusting flange with tube (option) D-ISC 100 universal operating unit (option) Purge air and power supply unit (option) Accessories |
| Physical measuring value | Transmission, opacity |
| 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 |
| 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) |
| Process connection | Adjusting flange, bolt circle 100 mm, tube ID = 59 / 83 / 105 mm |
| Ambient temperature (operational) | -20 … +50 °C |
| 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) |
Accessories
Universal display and operating units
The universal operating unit 
D-ISC 100 allows the connection of several DURAG devices. It allows parameterization and maintenance of all connected devices via integrated keypad or a connected PC and also supports remote access via intranet or internet connection.
Our D-ESI Service and Parameterisation Software assists you to manage all your DURAG sensors connected in one network system via a uniform graphical Interface.
Contact us for more details.
Supply unit
D-TB x00 in various versions- for voltage supply of one DURAG sensor
- different housings available
- version with integrated purge air blower available
Please contact your sales representative for more information.
Purge air blower
- D-BL xx in various versions
- for supplying the measuring head with purge air
- weather protection cover available as an option
Please contact your sales representitive for more information.
We offer various accessories such as weather protection covers for your sensor, reference filter sets, mounting flanges and so on to fit your application and to have all components from one source.
Resources
GENERAL INFORMATION
Product overview emission monitoring / DE (4 MB)
Product overview emission monitoring / EN (4 MB)
Guidance book EU regulations / DE (4 MB)
Guidance book EU regulations / EN (3 MB)
PRODUCT INFORMATION
Product brochure D-R 220 / DE (878 KB)
Product brochure D-R 220 / EN (873 KB)
Additional information
| Models | D-R 220, D-R 290, D-R 320, D-R 808, D-R 820 F |
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