• The XZR250 monitors combustion control in industrial boilers
    The XZR250 monitors combustion control in industrial boilers
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A new oxygen analyser from Michell Instruments targets combustion efficiency in boilers.

The XZR250 monitors combustion control in industrial boilers, and was developed to meet customer demand for a cost-effective, easy-to-operate instrument with a probe designed to cope with high temperatures in the flue.

Effective combustion control helps increase fuel efficiency but also ensures compliance with legislation on allowable emissions.

The XZR250 uses a zirconium-oxide sensor with a life span of up to seven years (depending on the fuel used) to keep maintenance to a minimum.

A key benefit of the sensor is its fast response of less than 15 seconds to changes in oxygen concentrations of 90 per cent of the range. It is also accurate to <0.25% O2, allowing optimum combustion control.

The XZR250 is easy to install as it requires no specialised tools. It is also light to handle and has a fast start-up routine. The probe can be inserted directly into boilers up to 700°C and uses the Pitot effect to ensure the sample gas is sufficiently cooled to protect the sensor from damage without the need for complex sample conditioning.

As with any process instrument, regular calibration is necessary to ensure the accuracy of the measurements. The XZR250 can use air as a calibration gas, making calibration cost-effective and simple to perform.

The analyser is available from AMS Instrumentation & Calibration.