DURAG D-R 290

General Details

Optical Dust and Opacity Monitor

Certified optical transmission analyzer to measure the opacity or dust concentration of sample gas. Suitable for plants which require the monitoring of dust missions by law.

Suitable for dust concentration measurement:

  • at incinerators in general
  • at garbage, hazardous waste and sewage sludge incinerators,
  • at facilities for cement production
  • at power stations with gas, oil, coal or co-firing

Suitable for measuring the opacity in the exhaust gas:

  • at incinerators in general

Suitable for monitoring of filter facilities

Suitable for measurement of dust load in warehouses.

 

Overview

 

  • Suitable for systems with variable gas speed
  • Allows calibration to measure the dust concentration in mg/m3
  • Measures opacity and/or optical density
  • Can be used even at thick-walled stone / insulated ducts
  • Device is not in contact with sample gas
  • Automatic zero and reference point check
  • Automatic measurement and correction of soiling of optical windows
  • Super-wide band diode (SWBD), long life, reduced influence of variable particle sizes
  • Hermetically sealed enclosures – no flue gas diffusion to optics or electronics unit
  • Optimized purge air reduces pollution, provides long maintenance intervals
  • Heated optical window
  • Easy installation, adjustment and maintenance, no PC required
  • Local control unit displays opacity, extinction or mg/m3 values
  • Additional display unit as an option in up to 1000m distance
  • Automatic range switching output

 

Specification

D-R 290 Application Data

measurements opacity, extinction / optical density, allows calibration as a dust concentration in mg/m3
sample gas air, flue gas, non flammable process gas
dust concentration**
(typical values at the site)
0,5 – 15…. / 500 – 10.000 mg/m3 (.0002-.0065 / .22 – 4.37 gr/ft3)
duct diameter 1 – 2,3 m / 1 – 8m* / 1 – 12m* / 1 – 18m* (3.3 – 6.5 , 9.8 ft./ 3.3 – 26.2ft* / 3.3 – 39.4 ft* / 3.3 – 59 ft*)
sample gas temperature -25 … 250°C / 400°C* / 600°C*, (-13…482°F / 752°F* / 1112°F*) others on request
sample gas pressure
(relative to ambient pressure)
-50 to +20 hPa, others on request
sample gas moisture < 95% relative humidity (non-condensing)
ambient temperature -20 to +50 °C (-4°F to 122°F), others on request
compliances 2000/76/EG WID / 17. BImschV
2001/80/EG LCPD / 13. BImschV
27. BImschV
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 /prEN 15267-3, MCERTS, Pattern Approval GOST R, Pattern Approval certificate Rep.of Belarus, Pattern Approval Certificate PRC, MCOC 40CFR 60 EPA PS1

D-R 290 Specifications

 
measuring principle measuring the optical transmission of visible light which passed a measuring path twice
light source SWBD LED white, 450 – 680 nm
type in situ, mounted at stack, device not in contact with sample gas
system components D-R 290 M measuring head 
D-R 290 R Reflector
D-R 290 AW2 / AG Evaluation unit
D-R 290 AZ2/AG display unit *
D-BL purge air unit
accessories
measuring ranges 0 – 97,5 % Opacity
0 – 1,6 EXT (Optical density)
expanded uncertainty 
EN14181 / EN ISO14956 / EN15267-3
better than 0,0063 Ext, related to ca. 1 mg/m3 (.0004 gr/ft3) for particle size 1-2mü and duct diameter D = 5m (16.5ft)
output ranges 0-20% … 100% Opacity
0 to 0,1 … 1,6 extinction, can be assigned in 2 ranges to 2 analog outputs, measured values are displayed at D-R 290 AW2/AZ2 as opacity, extinction or scaled to dust concentration
process connection 2 x adjustment flange, 100mm (4 in) bolt circle, pipe ID = 59, 83*, 105* mm (2.25 x 3.25 x 4.25 in)
2 x adjustment flange, 150mm (6in) bolt circle*, pipe ID = 59 / 83* / 105* mm (2.25 x 3.25 x 4.25 in)

DR 290 M measuring head

power supply + 5 VDC, +- 15 VDC
dimensions (hxwxd) ca. 370 x 190 x 400 mm (14.5 x 7.5 x 15.75 in.)
protection IP65,
Ex II 3G Ex pz II T4*
Ex II 3D Ex pz II T4*
others on request
weight ca. 10 kg  (22 lbs.)
material Al cast alloy, painted RAL 5017

D-R 290 AW2 + D-R 290 AG2 Evaluation unit
D-R 290 AZ2* + D-R 290 AG2 Display unit*

measurement outputs 2 x 4-20 mA / 500 Ohm, 
RS 485 – Modbus RTU*, Profibus DP*
status outputs 6 relay outputs, programmable function, resilience 48 V / 0,5 A
analog signal inputs 1 x 4 – 20 mA, can be configured
status inputs 6 potential free inputs, programmable function
supply 90 – 264 VAC, 48 – 62 Hz, 30 VA
protection IP 65
dimensions (hxwxd) ca. 260 x 190 x 220 mm (10.25 x 7.5 x 8.75 in.)
material Al cast alloy, painted RAL 5017

D-R 290 R Reflector

 
weight ca. 7 kg (15.5 lbs.)
material Al cast alloy, painted RAL 5017

D-BL Blower unit

 
purge air flow rate max. 40/60 m3/h at dPtot 50/25 hPa, others on request
power supply 115 / 230 VAC, 50 / 60 Hz, 0,37 / 0,43 kW, others on request
protection IP 55
dimensions (hxwxd) 480 x 450 x 320 mm (19 x 17.75 x 12.5 in.)
weight 12 kg (26.5 lbs.)
material 1.4301
remarks * variants
** the suitability of the DR 290 for the listed ranges depends on the kind of dust, the size distribution and the duct diameter 
Subject to technical modifications!
Certificate

d_r_290_cert