Brand Gaus Model 4705 O2 Analyzer

Continuous Measurement of Oxygen Concentration using Linear Ouput Zirconium Oxide Technology
 
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.

The Model 4705 is a single-channel oxygen analyzer. The Model 4805 is a dual-channel oxygen analyzer capable of measuring the O2 concentration of two independent gas streams, but only requires the space of a single Model 4705.

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

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

Mechanical Specifications

• EIA 19 inch rack mount enclosure, 8 inches deep, 2 rack units tall (3.5 inches).
• Weight: Model 4705: 10 lbs., Model 4805: 12 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)
  

For availability and recommendations, please call us at 800.399.4236 or email a Sales Engineer.
Or click on the RFQ link to submit project details.