ABB AZ20/000112121110000E Oxygen Analyzer Unit

Module Feature

AZ20/000112121110000E belongs to ABB Endura AZ20 series in-situ oxygen analyzer.

It adopts high-temperature zirconia sensor principle, directly installed inside flue duct for continuous oxygen measurement. It supports local display, HART communication and alarm output, widely used for boiler, heater, kiln and incinerator combustion optimization and emission monitoring.

Working principle

The heated zirconia cell generates millivolt signal according to oxygen concentration difference between flue gas and reference air.

Transmitter converts the signal into standard 4–20mA or digital communication value. It runs calibration sequence automatically or manually to ensure long-term measuring accuracy.

Onboard components

Zirconia probe assembly, heating control module, transmitter mainboard, touch HMI, signal isolation circuit, terminal wiring compartment.

LED indicators

Front LEDs show power status, heating running state, calibration progress and fault alarm.

Hardware self‑diagnosis

Built-in self-check detects probe breakage, heating failure, thermocouple error and communication interruption, fault codes display on local panel.

Programming software

ABB AZ20 Engineering Software, used for parameter setup, calibration configuration and fault log reading.

Electrical & Process Parameters

Model:AZ20/000112121110000E Brand:ABB Device type:Zirconia flue gas oxygen analyzer Supply voltage:85–265V AC Measuring range:0–25% O2 Function:On-line oxygen monitoring for combustion process, efficiency optimization and safety interlock

Mechanical & Structure

Mounting:Flange mounting on flue duct

Protection class:IP20

Housing:Explosion-proof grade aluminum transmitter housing + stainless steel probe

Environmental

Operating temperature:Probe up to 800℃, transmitter -20℃ ~ +60℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, IEC

Status:Original ABB combustion analysis instrument spare

Installation

Install probe flange on stable flue pipe tapping point.

Connect power supply, output signal cable and communication line, complete heater warm-up and zero/span calibration before commissioning.

Interface

AC power inlet, 4-20mA analog port, HART communication port, relay alarm terminals.

Diagnostic

Probe fault: Broken zirconia cell or damaged thermocouple.

Heating failure: Burned heating element or temperature control error.

Measurement drift: Contaminated probe surface or failed calibration.

Product Brief

ABB AZ20/000112121110000E Endura AZ20 zirconia oxygen analyzer, in-situ instrument for boiler flue gas oxygen continuous monitoring.