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NDIR biogas analyser

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Single Beam NDIR Biogas Analyser - ZPAF


 

Biogas composition multigas analysers

Multigas, continuous and simultaneous measurement of 4 components including H2S

CH4 METHANE
CO2 CARBON DIOXIDE
H2S HYDROGEN SULPHIDE
O2 OXYGEN

 

  • Unique measurement cell design reduces maintenance
  • Reduced maintenance thanks to the unique design of the measuring cell
  • Built-in paramagnetic or fuel cell oxygen sensor available

 


 

Applications of biogas analyser - ZPAF

  • Landfill
  • Waste storage
  • Digesters,
  • Fermenters
  • Sewage treatment plants

 

Features and Advantages of  biogas analyser - ZPAF

  • Easy maintenance thanks to self-diagnosis functions
  • Good accuracy and excellent stability over time
  • Large backlit display
  • Automatic zero and span calibration
  • Correction by oxygen
  • Modbus® protocol digital link
  • Large dynamic range (1 to 20 configurable)

 

Specifications of biogas analyser - ZPAF

Repeatability≤ ± 0,5 % FS (H2S : < ± 2,0 % FS)
Linearity≤ ± 1,0 % FS (H2S : < ± 2,0 % FS)
Zero drift≤ ± 2 % FS per week
Span drift≤ ± 2 % FS per week
(H2S : ≤ ± 2,5 % FS per week or ≤ ± 5 % FS per week)
Response time (for 90%)10-30 s (H2S : 180 s)
Output analog4-20 mA DC ou 0-1 V DC
Contact input12-24 V DC, < 9 points
Contact outputSPDT, < 15 points
Communication (option)RS-485 (Modbus)
DisplayBacklit LCD
Power supply voltage100-240 V AC, 50/60 Hz
Dimensions and weight483 (L) x 133 (H) x 382 (P) mm, approx. 9 kg


 

Components and ranges


 1st range2nd rangePrinciple
CH4 METHANE0…20% vol0…100% volSingle-beam NDIR
CO2 CARBON DIOXIDE0…20% vol0…100% vol
H2S HYDROGEN SULPHIDE0 . . 500 ppmO ... 2000/5000 ppmConstant-potential electrolytic
O2 OXYGENO . . 10% vol25% volGalvanic fuel cell


 

 



 

NDIR biogas analyser documentation