ABB Introduces Oxygen Sensor for Use in Air Separation Plants

  • September 27, 2004
  • ABB
  • News
New ABB Gas Analyzer AO2000-ZO23Frankfurt, Germany, September 27, 2004 ABB, the leading power and automation technology group rounds off its product range of measuring modules for the continuous process gas analysis with its new zirconium dioxide sensor ZO23.Zirconium dioxide sensors are applied in particular to the measurement of oxygen in pure gases of air separation plants. They are capable of registering minimal measuring ranges of 0-1 ppm of oxygen. This makes the AO2000-ZO23 Analyzer perfectly suitable for the quality control of technical gases in gas depots or for the monitoring of protective gas atmospheres.The use of catalytically inactive platinum electrodes in the measuring cell even allows measurement in the presence of small amounts of flammable gases.The sensor excels with its above-standard operational life. An internal function test, its patent already pending, checks the functionality of the cell during operation. The test routine can either be started manually or programmed to allow for a cyclic scan.The housing of the AO2000 Analyzer is designed for the installation of up to two ZO23 modules. Additional analyzers can be integrated in the AO2000 system by using a bus connection, providing extremely compact system solutions for simultaneous measuring at several points of measurement.Measured values, status signals and the messages of the built-in log can be transmitted by means of digital interfaces. From the basic, serial Modbus connection via Profibus DP to the direct Ethernet connection with OPC server - everything that simplifies the integration in process control technology or controls is available.The AO2000 Series is thus the most perfected line of modularly structured gas analyzers on the market. From the chemical oxygen cell through various photometers all the way to In-Situ process lasers, it offers all current measuring methods in one system with one common structure and operating philosophy.ABB ( is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 105,000 people.

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