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Endura AZ25 High Temperature Combustion Gas Oxygen Analyzer

Brand: ABB Group
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The Endura AZ25 is an in situ combustion gas oxygen analyzer system designed for use in high temperature applications > 600° C.

The sensor, based on a zirconium oxide cell, is mounted at the tip of the probe that is inserted into the furnace or flue duct. 

The resulting direct, in situ measurement provides accurate and rapid oxygen reading for combustion optimization, process control and furnace atmosphere monitoring.
Features
  • Proven design and precision manufacturing
    • Robust, long-life probe for process temperatures up to 1,400° C (1,292° F)
    • Stable and accurate oxygen measurement
  • Automatic calibration system
    • Controls test gas sequence, flow rate and test gas detection
  • Probe lengths up to 1250 mm (49 inches) and choice of protective sheath materials
    • Configurable to suit application conditions
  • Industry-standard flanges
    • Simplifies installation
  • Advanced transmitters
    • Easy configuration, monitoring and intuitive HMI
    • HART communications
    • Cell performance logging and diagnostics

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Specifications

Brand

Probe Length

  • 500 to 1,250 mm (23.62” to 49”)
  • Insertion Length: 556 to 1251 mm (21.89” to 49.25”)

Sheath / Probe Material

  • Aluminous porcelain
  • Recrystallized alumina
  • Incoloy 800

Communication

  • HART

Environmental Protection

  • IP66 (NEMA 4)

Measurement Range

  • 0 to 25 % O₂

Response Time

  • Test Gas: Initial dead time 3 seconds, T90 < 10 seconds

Accuracy

  • < ± 2.0 % of Reading or 0.2 % O₂, whichever is greater

Drift

  • < ± 1 % Max. % O₂ Range value per month (Without calibration)
  • < ± 0.2 % Typical

Ambient Temperature

  • Transmitter: -20° to 55° C (-4° to 131° F)
  • Probe Standard cable: -20° to 100° C (-4° to 212° F)

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Humidity

  • Up to 95 % Relative Humidity, Non-Condensing

Power Supply

  • Electronics: < 10 W
  • 100-240 Vac ± 10 % (90 V min. to 264 V Max.) 50/60 Hz

Certifications & Approvals

  • General safety: Conforms to EN 61010-1: 2001
  • CE Mark
  • EMC: Conforms to EN 61326-1: 2006

Process Conenction

  • ANSI B16.5 150 lb
  • DIN 2501 Part 1
  • JIS B2238 5K
  • 1” NPT
  • 1” BSP

Mounting

  • Probe: Horizontal to Vertically down
  • Transmitter-integral: Head-Mounted, 3 Gland entries, Optional 1/2” NPT, M20
  • Transmitter-Remote: Wall-, pipe- or Stand-Mounted 4 Gland entries, Optional 1/2” NPT, M20

Process Temperature

  • Aluminous Porcelain: 600° to 1,250° C (1,112° to 2,282° F)
  • Incoloy 800: 600° to 850° C (1,112° to 1,562° F)
  • Probe Mounted horizontally-Incoloy 800: 600° to 1,000° C (1,112° to 1,832° F)
  • Probe Mounted vertically down-Recrystallized alumina: 600° to 1,400° C (1,112° to 2,552° F)

Operating Pressure

  • 5 kPa (0.7 psi) positive or negative (Nernstian response)

Calibration

  • Manual, semi-Automatic or automatic (Controlled by Endura AZ25 transmitter)

Display

  • Transmitter: Graphical 128 x 64 Pixel LCD, Green LED

  • Furnace atmosphere monitoring 
  • Annealing furnace 
  • Sintering of metals 
  • Ferrite sintering 
  • Whiteheart malleablizing 
  • Combustion measurement and control in: 
    • Soaking pits 
    • Process heaters 
    • Fluidized bed boilers 
    • High temperature incinerators 
  • All other combustion processes where the flue gas temperature is in excess of 600° C (1,112° F)

Documentation

Brochure

Catalog

Manual

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