Zirconia

Zirconia provides trusted and accurate oxygen measurement

Zirconia is a reliable oxygen sensing technology capable of providing measurements at parts-per-million (ppm) and percentage levels. Trusted by industries around the world, it is an essential component of our SERVOTOUGH FluegasExact 2700 analyzer, which monitors O2 levels in in-situ combustion processes.

The Servomex Zirconia sensor consists of a cell made of ceramic zirconium oxide, stabilized with an oxide of yttrium to form a lattice structure.

The measure and reference sections of the cell are covered with catalytic, porous, electrically conductive coatings that serve as electrodes on both sides of the lattice barrier between sample and reference gas volumes.

At elevated temperatures, the lattice permits the passage of negatively charged oxygen ions, formed at the catalytic electrodes at a rate determined by temperature and the difference in the O2 partial pressures of the sample gas and the reference gas.

The passage of the ions produces a voltage across the electrodes – the magnitude of this is a logarithmic function of the ratio of the O2 partial pressures of the sample and reference gases.

Since the partial pressure of the reference gas is predetermined, the voltage produced by the cell indicates the O2 content of the sample gas.

There are two variants of our sensor: a higher-temperature variant for percentage O2 in flue gas, and a lower-temperature variant with modified catalytic electrode properties for parts-per-million (ppm) O2 measurements in purity applications.

Related and alternative technologies

Our Zirconia sensor is paired with Calorimetry sensing to deliver an all-in-one combustion control solution. In some applications, Measurement errors may result if the sample contains hydrocarbons. Depending on the application, a Paramagnetic or TDL sensor may be recommended for the oxygen measurement instead.

Key applications

Process heaters

Thermal crackers

Incinerators

Nitrogen purity

Utility boilers

Key benefits

Measures O2 concentrations in ppm or up to 21%

Extractive sampling equipment is not required

Suitable for high-temperature measurements

Ideal for

Measuring O2 in in-situ combustion processes, where the measuring probe can be directly installed into the flue for high-temperature combustion gas analysis, eliminating the need for extractive sampling equipment.

Explore the Zirconia analyzers we have for your process

Learn more about all our gas analyzer solutions that use this sensor technology.

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4900 Multigas

SERVOPRO Safe Area

The 4900 Multigas is a high-performance CEMS analyzer designed for a wide range of multi-gas measurements.

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AquaXact 1688

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AquaXact Controller

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Built specifically to work in harmony with the AquaXact 1688 ultra-thin film Aluminum Oxide moisture transmitter.

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Chroma

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The Chroma is optimized to specific background gases to ensure optimum performance for your application.

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DF-550E

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An ultra-trace Coulometric oxygen analyzer, the DF-550E is optimized for quality measurements in ultra-high-purity electronic gases.

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DF-560E

SERVOPRO Safe Area

The DF-560E provides the semiconductor industry with industry-best oxygen (O2) measurements for quality control in ultra-high-purity (UHP) electronic grade gas.

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DF-560E ULTRA

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A superior quality control solution for ultra-high-purity (UHP) electronic grade gases, the DF-560E Ultra delivers an industry-best detection of 45 parts per trillion for oxygen (O2).

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DF-730

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The DF-730 is an ultra-trace moisture analyzer that monitors the electronics-grade, high-purity hydrogen chloride (HCl) gas used in semiconductor fabs.

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DF-740

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A trace moisture analyzer using Tunable Diode Laser (TDL) sensing technology, the DF-740 is designed to measure contaminants in UHP-grade ammonia.

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DF-745

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The DF-745 delivers trace and ultra-trace measurements of moisture for ultra-high-purity (UHP) electronic gas checks in LED/LCD manufacturing processes.

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DF-745 SGMax

SERVOPRO Safe Area

The DF-745 SGMax is designed for the measurement of diverse gas mixtures in specialty gas blending applications.

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DF-750

SERVOPRO Safe Area

The DF-750 is a trace/ultra-trace moisture analyzer optimized for measurements in the ultra-high-purity (UHP) gases used in 300mm semiconductor fabs.

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DF-750 ULTRA

SERVOPRO Safe Area

Delivering industry-leading trace/ultra-trace moisture measurements, the DF-750 ULTRA is optimized for quality monitoring in the ultra-high-purity (UHP) gases used in 300mm semiconductor fabs.

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DF-760E

SERVOPRO Safe Area

Designed for quality control applications in UHP bulk gases, the compact DF-760E analyzer is a unique solution for the dual measurement of trace and ultra-trace moisture

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DF-760E ULTRA

SERVOPRO Safe Area

Designed for industry-leading quality control measurements in UHP bulk gases, the compact DF-760E ULTRA is a unique dual-analysis solution for trace and ultra-trace moisture and oxygen.

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FID

SERVOPRO Safe Area

With trace analysis capability, the FID is ideal for ASU safety and quality control applications.

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FluegasExact 2700

SERVOTOUGH Hazardous Area

Designed to measure O2 and COe in flue gases for improved combustion efficiency and reduced emissions.

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H2scan

SERVOTOUGH Hazardous Area

A solid-state, non-consumable sensor configured to operate in process gas streams. Provides a direct hydrogen measurement that is not cross-sensitive to other gases.

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HFID

SERVOPRO Safe Area

Utilizes an internally heated oven set to 190°C (374°F) to maintain the sample gas above its dew point, for optimum performance in total hydrocarbon analysis (THC).

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Laser 3 Plus Combustion

SERVOTOUGH Hazardous Area

Unmatched installation flexibility plus cost and performance benefits, ready for fast, accurate and responsive measurements in combustion and process control.

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Laser 3 Plus Environmental

SERVOTOUGH Hazardous Area

Compact, high-performance Tunable Diode Laser (TDL) analyzer, specifically optimized for ammonia slip measurement

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Laser 3 Plus Process

SERVOTOUGH Hazardous Area

Optimized for the fast, accurate and responsive measurement of process oxygen (O2) in hot or hazardous conditions.

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Micro i.s. 5100

SERVOFLEX Portables

Designed for the measurement of oxygen (O2) in potentially flammable gas samples. Certified to Zone 0 and Zone 1 and suitable for measuring percent levels of O2.

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MiniFoodpack 5200

SERVOFLEX Portables

A small sample volume portable benchtop analyzer focused on the checking and quality control of gas mixtures in Modified Atmosphere Packaging (MAP).

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MiniHD 5200

SERVOFLEX Portables

The MiniHD 5200 portable gas analyzer is a rugged, heavy duty analyzer designed to accurately measure the levels of O2, CO and CO2 within common gas mixtures.

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MiniMP 5200

SERVOFLEX Portables

The only truly portable battery-powered gas analyzer with MCERTS and TUV certification, offers single or dual measurement of oxygen (O2) and carbon dioxide (CO2).

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MonoExact DF150E

SERVOPRO Safe Area

The MonoExact DF150E combines the reliability of Servomex’s tried and tested Coulometric oxygen sensor with a more user-friendly package.

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MonoExact DF310E

SERVOPRO Safe Area

Designed specifically for accurate measurements of oxygen in industrial gas (IG) applications.

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MultiExact 4100

SERVOPRO Safe Area

A high-performance multi-gas analyzer designed to provide up to four simultaneous gas stream measurements.

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MultiExact 4200

SERVOPRO Safe Area

The MultiExact 4200 analyzes up to four gases simultaneously for Syngas and HyCO

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NanoChrome

SERVOPRO Safe Area

Incorporating the latest advances in gas sensing and signal processing methodology, the NanoChrome revolutionizes ultra-trace purity measurements.

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NanoChrome ULTRA

SERVOPRO Safe Area

Using proven ultra-trace sensing, the NanoChrome ULTRA conquers the most stringent demands of the semiconductor industry, delivering a cost-effective solution compared to competing technologies.

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NOx

SERVOPRO Safe Area

Measures NO or NO/NO2/NOx concentrations in industrial gas and vehicle emission applications.

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Oxy 1800

SERVOTOUGH Hazardous Area

Designed to reliably measure up to 100% oxygen (O2) in many industrial applications, the Oxy 1800 is a stable, accurate O2 analyzer for safe area use.

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Oxy 1900

SERVOTOUGH Hazardous Area

The Oxy 1900 oxygen (O2) gas analyzer sets new standards of flexibility, stability and reliability from a single, cost-effective unit.

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OxyDetect

Gas Detection

A life safety monitor designed for safe area or hazardous area environments, the OxyDetect delivers the superior performance of non-depleting Paramagnetic O2 sensing technology.

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OxyExact 2200

SERVOTOUGH Hazardous Area

The high-specification OxyExact 2200 O2 analyzer offers an unrivaled combination of precision, flexibility and performance for optimum process and safety control.

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Plasma

SERVOPRO Safe Area

The Plasma delivers an accurate, highly stable and reliable measurement, with high sensitivity in the 0-1ppm range.

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PureGas

SERVOPRO Safe Area

A getter-based purification unit designed for the purification of carrier gases used in Gas Chromatography (GC) and other analytical applications

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SpectraExact 2500

SERVOTOUGH Hazardous Area

Flexible single and multicomponent gas analysis capability for corrosive, toxic and flammable sample streams.

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SpectraScan 2400

SERVOTOUGH Hazardous Area

A real-time optical analyzer utilizing the Precisive field-proven optical bench. A breakthrough capability in the continuous analysis of light hydrocarbons C1-C6.

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