Trace oxygen analyzer ensures accuracy in cryogenic air separation

The XZR400 oxygen analyzer from Michell Instruments is designed to measure trace levels of oxygen in pure, inert gases such as nitrogen, argon, helium and carbon dioxide. Capable of detecting oxygen down to 0.01 parts per million, the analyzer is used to ensure the purity of gas produced by cryogenic air separation.

The XZR400 uses Michell’s MSRS zirconium oxide oxygen sensor, which contains a metallic sealed reference and ensures long-term repeatability of measurements. The MSRS means that no reference air is required. The technology is non-depleting which gives the sensors a long life span of over seven years. Calibration is required every three to six months and can be carried out with just one calibration gas saving time and money.

The XZR400 range features four configurations: rack, wall, bench mount and transportable. All models include an intuitive touch-screen interface for quick and easy operation, barometric pressure and digital flow meters as standard. One or two 4-20 mA outputs are available and other options include digital outputs such as Modbus RTU over RS485 protocol, RS232, internal or external sample pumps and process pressure correction.

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Date: 28 February 2017
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Written & issued by Michell Instruments Ltd.