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Model 4705 Oxygen Analyzer

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 Oxygen Analyzer for Extractive CEMS and Process Control 

 Continuous Measurement of Oxygen Concentration
using Linear Ouput Zirconium Oxide Technology 


Model 4705
U.S.A. List Price: $3495

The Model 4705 Oxygen (O2) Analyzer uses a revolutionary pumped-oxygen zirconium oxide cell to measure oxygen concentration. The pumped cell provides truly linear sensor output that allows for calibration and measurement from 0% O2 to 25% O2, removing the need to maintain the 2% O2 calibration gas normally required for traditional zirconium oxide analyzers.

The true linear ouput, full measurement range, and ultra-stable zero make the Model 4705 a robust, high-performance replacement for both paramagnetic oxygen analyzers and zirconium oxide O2 analyzers.

The Model 4705 meets or exceeds 40CFR60 and 40CFR75 demands for relative accuracy, linearity, and calibration drift in low and ultra-low NOx natural gas-fired combustion turbine applications.

Advantages Over Conventional and Insitu Designs

  • Thermally coupled reference gas eliminates dependence on ambient humidity and reduces thermal drift
  • Sensor is fully housed within instrument -- no mounting of external sensor required
  • Easy-to-use two-point calibration via front panel buttons -- no complicated menus or passwords to remember

Model 4705 Performance Specifications

  Model 4705/4805
Measurement technology Zirconium oxide (zirconia, ZrO2) cell
Measurement range 0 to 25 %O2
Full scale range Continuously adjustable from 10 to 25 %O2
Zero noise less than 0.02 %O2
Zero calibration drift better than ± 0.1 %O2
Span noise less than 0.02 %O2
Span calibration drift better than ± 0.1 %O2
Linearity error less than 1% of high calibration gas value across range from zero to full scale
Interference (sum of all interferences) less than 1% of measured value
Response time T95 no greater than 30 seconds

Features

  • Large LED readout of O2 concentration.
  • Fully isolated 4-20mA analog output of measured O2 concentration.
  • Analog output can be trimmed ±5%, independent of front panel/gas calibration.

Mechanical Specifications

  • EIA 19 inch rack mount enclosure, 8 inches deep, 2 rack units tall (3.5 inches).
  • Weight: Model 4705: 10 lbs.
  • Power: 120VAC, 4 Amps max.
  • Sample flow rate for each channel: requires 0.3 to 2 SLPM at atmospheric pressure (e.g. from a vented sample manifold)


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