The Michell Instruments XZR501 combustion control analyzer determines the excess air required for optimum efficiency in industrial combustion processes. It uses sealed-reference zirconium oxide technology to measure oxygen levels in harsh conditions such as boilers, incinerators and furnaces. Accurate control of combustion efficiency is critical for effective process operation and reduction of plant operating costs.

The XZR501 analyzer is designed to be located close to the gas stream to protect the sensor from damaging conditions. Its compact size enables installation in nearly any location, and fits most flange types to replace other analyzers without expensive retrofitting. The modular construction offers a choice of three probe lengths and six probe materials, including 304L stainless steel for low-temperature applications, alloys for corrosive samples, and ceramic for temperatures up to 2372°F (1300°C).

The advanced metallic sealed reference sensor (MSRS) technology is resistant to contamination and virtually drift-free, resulting in extended calibration intervals and reduced maintenance — a key benefit for hard-to-access measurement points. The MSRS of the XZR501 allows the use of dry air as a single calibration gas for most applications, eliminating the need for expensive calibration gases.

Michell Instruments XZR501 Combustion Control Analyzer Applications

• Boilers
• Industrial and waste incinerators
• Coal-fired power plants
• Petrochemical furnaces
• Annealing and galvanizing furnaces
• Soaking pits
• Glass and melting furnaces
• Cement kilns
• Crematoria

Features

• 0.01% to 25% oxygen measurement range
• Better than ±2% of reading accuracy
• ±0.1% of reading repeatability
• 1% per month stability
• Better than ±1% of reading linearity
• Minimum flue gas sample flow rate: 17.65ft/sec (0.5m/sec)