ABB Combustion gas oxygen analyzer Endura AZ20

ABB Combustion gas oxygen analyzer Endura AZ20 

The Endura AZ20 is a high-quality combustion gas analyzer providing accurate and rapid oxygen reading for combustion control optimization and emissions monitoring.

The Endura AZ20 is the latest in a long line of highquality, combustion gas analyzers from ABB.

The sensor, based on a zirconium oxide cell, is mounted at the tip of the probe that is inserted in the flue duct. The resulting direct, in situ measurement provides accurate and rapid oxygen reading for combustion control / optimization and emissions monitoring purposes.

Endura AZ20 has been designed for extended periods of maintenance-free operation. The modular design with reduced component count improves the reliability and robustness of the system and simplifies breakdown repair if it occurs.

Kits containing all the parts needed to complete onsite repairs are available from ABB, ensuring that service personnel can effect repairs quickly and efficiently at minimum cost. The Endura AZ20 probe has retained an easy-access cell arrangement, similar to the proven ZFG2 probe. This ensures cell replacement can be carried out on-site using readily available, basic hand tools, even after long periods of high temperature operation.

Advanced design and precision manufacturing

– robust, long-life probe for process temperatures up to 800 °C (1472 °F)

– proven cell design from over 50 years experience

– fast response to process variations

– stable and accurate oxygen measurement

Unique integrated auto-calibration system

– easy compliance for emission monitoring regulation

– reduced installation costs; eliminates requirement for expensive external calibration panel

– reduced maintenance costs

Probe lengths up to 4.0 m (13.1 ft) and industry-standard flange configurations

– suitable for a wide range of applications

– extensive installation options

Easy cell release

– fully site-serviceable probe

– easy access to internal components

Advanced transmitters

– easy configuration, monitoring and intuitive HMI

– HART communications

– cell performance logging and diagnostics

The Endura AZ20 oxygen probe measures oxygen concentration in flue gas using an in situ 'wet analysis' method.

The 'wet analysis' method avoids measurement error (typically 20% of reading higher than the actual value) that is introduced by a sampling system using the 'dry analysis' method.

For customers with an existing installed ZFG2 probe with a ZMT or ZDT transmitter, a 55 V heater version of the Endura AZ20 probe (the Endura AZ20 / ZFG2 replacement probe) is available.

Ordering information Endura AZ20 probe / transmitter Tx Probe 

AZ20/ X X X X X X X X X X X X X 0 X X STD 

Transmitter options None Standard Standard + 2nd analog output Standard + 2 digital inputs / outputs 0 1 2 3 Transmitter entry type None (no transmitter required) Metric (M20) Imperial (NPT) 0 1 2 Transmitter system type None (no transmitter required) Integral Remote 0 1 2 Probe type None (no probe required) Standard 0 1 Probe entry type None (no probe required) Metric (M20) Imperial (NPT) 0 1 2 Probe system type None (no probe required) Integral Remote 0 1 2 Automatic calibration None (no probe required) No automatic calibration (with flow restrictors) No automatic calibration (without flow restrictors) Automatic calibration (with flow restrictors) Automatic calibration (without flow restrictors) 0 1 2 3 4 Insertion length None (no probe required) 0.5 m (1.7 ft.) 1.0 m (3.3 ft.) 1.5 m (5.0 ft.) 2.0 m (6.6 ft.) 2.5 m (8.2 ft.) 3.0 m (9.9 ft.) 3.5 m (11.5 ft.) 4.0 m (13.1 ft.) 0 1 2 3 4 5 6 7 8 Continued on next page…