The DURAG D-R 320 is a scattered light dust monitor that detects the lowest to medium dust concentrations in dry flue and process gas.
The D-R 320 is based on the back-scattered light principle – the light of a red laser diode illuminates the dust particles in the measuring volume of the flue gas duct. The light scattered backward by these particles is detected and evaluated.
A unique feature of the D-R 320 is the automatic background light compensation with means of a patented optical system with dual detector. This allows for an easy and quick installation without any adjustment. A light trap is not required.
|Sample gas type||Air, flue gas, non flammable process gas|
|Sample gas temperature||0…600 °C (+32…1112 °F)|
|Inner duct pressure||-50…+50 hPa|
|Sample gas relative humidity||0…95% RF, non-condensing|
|Stack/duct inner diameter||>0,7 m (>2,3 ft)|
|Measuring principle||Back scattering|
US EPA 40 CFR 60 PS11
|Certificates||CE, QAL1 EN 14181 / EN 15267-1 / EN 15267-2 / EN 15267-3, MCERTS|
|Measuring location||In situ, mounted at stack, device is not in contact with sample gas|
|System components||D-R 320 M measuring head, sender/receiver unit
D-TB 200 supply unit
D-ISC 100 universal operation unit (option)
|Self-check, protective functions||Automatic zero and reference point check
Automatic contamination correction
Integrated purge air monitoring
Integrated purge air regulation
Fully-integrated fail safe shutter for protection at purge air failure (option)
|D-R 320 M MEASURING HEAD, SENDER/RECEIVER UNIT|
|Physical measuring value||Scattered light units, calibrated as dust concentration|
|Measuring range dust concentration||min. 0 …5 mg/m³
max. 0 …200 mg/m³
|Output range dust concentration||Output range freely programmable. Any range within the measuring range can be assigned to the analogue output.|
|Certified measuring ranges||Dust concentration
|Integration time||1…180 s, programmable|
|Light source, spectral range||Laser diode, red|
|Process connection||DN100 PN6 / ANSI 4“ 150lbs RF
Single-sided, on a standard flange in any orientation.
No adjustment at site required; no light trap required.
|Digital interfaces||RS 485 Modbus RTU, bi-directional communication, USB (Service)|
|Analog outputs||1x 4-20mA, 400 Ohm, isolated, assignment parameterisable|
|Digital outputs||2 x contact NC/NO, permissible load 60 VDC / 30 VAC / 0.5 A,
function can be assigned. Typically: maintenance, failure
|Power supply||24 VDC, 0,5 A|
|Operation||D-ISC 100 universal operating unit (option),
Service software D‑ESI 100, incl. remote access via web interface (option), requires PC with Windows XP® or Windows 7® OS
Access via USB
|Ambient temperature (operational)||-40…+60 °C (-40…+140 °F)|
|IP protection class (IEC 60529)||IP65|
|Dimensions (HxWxD)||200 x 190 x 260 mm
200 x 190 x 410 mm (variants)
|Weight||Depending on version, approx. 15 kg|
|Material||1.4571 / 316Ti, painted blue RAL 5017|
Hi there, I'm Bronwyn. I've been with TES for 13 years and I'm the territory manager for the ACT, Southern NSW and Tasmania. I also look after our Gasmet and CEMS equipment sales. My usual work days are Monday - Wednesday. If there's something I can help you with, please give me a call on 0404 161 353 or send me a message and myself or your local sales support will be in touch shortly!