Copyright© 2014 Austin Analytics Group, LLC. Stand Alone System High Temperature System Hazardous...

OXY-O2 System

Zirconium-Oxide

In situ Oxygen Measurement

Copyright© 2014 Austin Analytics Group, LLC

• Stand Alone System

• High Temperature System• Hazardous Area System

• Universal/Remote Display System


The OXY-O2 Product Line


• Display on probe• Diagnostics on probe• User interface on probe• System confirmation on probe• System fault indication on probe• Analog output (optional track or hold)• Customer configured alarms• Serial communication (RS 485 Modbus Protocol)• Manual or Auto calibration trigger• NEMA 4X housing• Universal Power input

O2 Integrated Oxygen System Features:

Integrated Control Unit and Probe

• Designed for used with OXY-O2 probe

• Compatible with probes of other manufacturers

• Stand alone unit

• Used with high temperature OXY-O2 probe

• Supplied with wall mounting flange


The OXY-O2

Remote/Universal Control Unit

Probe Features:• Insertion lengths 0.2M, 0.4M, 0.5M, 1.0M, 1.5M, 2.0M

• Lengths up to 4.0M available as custom order

• Fixing flange 2” ANSI (4” option)

• Probe material stainless steel

• Flue gas maximum temperature 1200°F

• Flue gas maximum pressure or 20” WG


The OXY-O2 Probe

High Temperature Probe • Works with OXY-O2 RCU

• Gas Temperature range 1200 - 2550°F• Probe lengths 21” or 37”• Various sheath materials depending on Temperature• Inconel up to 1850°F • Alumnus Porcelain up to 2250°F • Recrystallized Alumina up to 2550°F


The OXY-O2 High Temperature System

Explosion Proof Probe • Works with OXY-O2 RCU

• Maximum Gas Temperature range 1200°F• Probe lengths 0.4M, 0.5M, 1.0M, 1.5M, 2.0M • Fixing Flange 2” ANSI (4” option)• Probe material stainless steel


The OXY-O2 Explosion Proof System


Auto-Calibration Unit

Automatic Calibration Flow/Control Unit • For auto calibration of stand alone and remote systems• Use where regular calibration required• Often required for compliance monitoring

Auto-Cal Schematic

Key Messages

Display/Probe Features •Display on Probe or remote•Diagnostics on Probe or remote•User Interface on Probe or remote•Visual Indication of System Operation on Probe or remote•Automatic Fault Detection•Visible indication of System Fault on Probe or remote•Analog Outputs and Alarms•Serial Communications•Modbus Communications


In Situ Zirconia MeasurementPrinciple of Operation


In Situ Zirconia MeasurementPrinciple of Operation

Sensor Output across Electrodes is given by the Nernst equation:

where: R - Gas Constant

P1 - Air Oxygen LevelP2 - Flue Gas Oxygen LevelF - Faraday’s ConstantT - Absolute TemperatureC - Cell Constant


The OXY-O2 Cell


Why Measure Oxygen?

• Optimize fuel/air ratio & combustion efficiency

• Minimize NOx emissions

• Standardize emissions concentration data


Optimize fuel/air ratio & Combustion Efficiency

• Dry flue gas loss• Incomplete combustion• Latent heat losses• Radiation losses• Blow down

Combustion Heat Losses & Chemistry


• Insufficient air

• Poor burner conditions

• Poor fuel/air mixing

• Flame turbulence

Incomplete Combustion

Optimize Fuel/Air Ratio & Combustion Efficiency


Minimize NOX Emissions


Application: Large Industrial Boilers


Application: Industrial Boilers


In Dry Cement Process• Ensure minimum of in-leaking air is achieved,

therefore maintaining correct pressure drop through pre heated tower

• Signal a possible explosion hazard due to high oxygen and carbon monoxide levels produced from process

Application: Cement Plant


• High dust levels mean sampling is difficult; in situ method preferred

• Exit temperature from 1st stage 650-750°F

• Zirconia is ideal; accurate and stable so operator gets maximum through-put of product without endangering plant.

Application: Cement Plant (continued)


When tankers are loading and discharging crude oil they have to be blanketed with inert gas (CO2). This gas has to have an O2 content below 8%

• O2 at below 8% is obtained from boiler exhaust

• The level of O2 controls change over valve and is measured down-stream of the valve

• Below 8% feed to tanks • Above 8% exhausted to funnel

Application: Oxygen on Oil Tankers


Copyright© 2014 Austin Analytics Group, LLC. Stand Alone System High Temperature System Hazardous...

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