Brand: ABB

ABB Endura AZ20 Combustion Gas Oxygen Analyzer

Name: ABB Endura AZ20 Oxygen Analyzer – Datasheet & Price Quote
Brand: ABB

Description

Overview

The ABB Endura AZ20 oxygen analyzer is an in-situ combustion instrument that measures O2 directly in the flue gas with a heated zirconium oxide cell mounted at the tip of the probe. Because no sample is extracted, the measurement avoids sample transport delay and sample system maintenance.

The AZ20 is part of ABB’s Endura combustion analyzer family and consists of a probe with an integral or remote transmitter. It is used for combustion trim control, efficiency monitoring and emissions-related O2 measurement on boilers, furnaces and fired heaters.

Key Features

In-situ zirconia measurement, 0.01 to 100% O2 display range
316L stainless steel probe for process temperatures up to 800 °C
Probe insertion lengths from 0.5 m to 4.0 m
AutoCal option with built-in solenoid valves and test-gas pressure switches
4 to 20 mA output with HART 5.7, optional second isolated output
Two relay outputs and NAMUR-style diagnostics

Technical Specifications

Parameter	Value
Order code	AZ20 (configured code: probe length, flange, transmitter type, AutoCal, outputs)
Measurement principle	In-situ heated zirconium oxide cell
Range	0.01 to 100% O2
Process temperature	-20 to 800 °C (-4 to 1472 °F)
Probe insertion lengths	0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 m
Probe material	316L stainless steel
Process connections	ANSI B16.5 150 lb 2, 2.5, 3, 4 in; DIN 65, 80, 100 mm; JIS 5K; ABB standard flange
Transmitter	Integral (head-mounted) or remote
Analog output	1 isolated 4 to 20 mA with HART 5.7; optional second isolated 0 to 20 mA
Relay outputs	2, normally closed, 5 A at 230 V AC or 30 V DC (non-inductive)
Digital I/O	2 optional, configurable as input or output
AutoCal	Isolated solenoid valve control 24 V at 2 W per valve; pressure-switch inputs
Probe heater supply	100 to 240 V AC ±10%, 50/60 Hz via transmitter
System accuracy	Better than ±0.75% of reading or 0.05% O2, whichever is greater
Test gas response	Dead time 3 s; T90 under 10 s
Drift	Under ±1% of maximum O2 range per month without calibration
Ambient temperature	Transmitter -20 to 55 °C; probe head -20 to 70 °C
Ingress protection	IP66 / NEMA 4X for probe and transmitter enclosures
Power consumption	Electronics under 10 W; probe heater under 100 W
Process pressure	Withstands ±35 kPa; pressure compensation needed above 5 kPa
Remote transmitter cable	ABB 16-core probe cable, maximum 100 m
Reference air	0.3 to 0.5 l/min; 1 bar (15 psi) regulated supply
Test gas flow	2.2 l/min at 1 bar (15 psi)
Menu languages	English, German, French, Spanish, Italian

Applications

Combustion trim (air/fuel ratio) control on utility and industrial boilers
O2 monitoring on refinery and petrochemical fired heaters and furnaces
Efficiency monitoring on kilns and incinerators
Oxygen measurement in flue gas for emissions reporting in power and desalination plants

ABB Endura AZ20 Ordering Code and Options

The AZ20 order code has a transmitter block and a probe block after the AZ20/ prefix. The first transmitter digit selects the output set: 1 for the standard transmitter, 2 for standard plus a second analog output, and 3 for standard plus two digital inputs/outputs. The next digits choose the cable entry (M20 or NPT) and the system type: integral, remote, or remote in a stainless steel housing.

In the probe block, the automatic calibration digit has four working choices: with or without AutoCal, each with or without built-in flow restrictors. Restrictors let the probe run from a fixed 1 bar supply without external flowmeters. The insertion length digit runs from 1 (0.5 m) to 8 (4.0 m) in 0.5 m steps. The flange character covers the ABB standard flange, DIN 65/80/100, ANSI 2, 2.5, 3 and 4 in, and JIS 65/80/100. The thermocouple is type K, and the cell option is either the standard cell or the large-surface-area filter for dusty gas.

Remaining positions set the probe cable length for remote systems (5, 10, 25, 50, 75 or 100 m), cable type, certification, menu language, and special features such as a corrosion-resistant PFA coating for process temperatures below 250 °C.

ABB Endura AZ20 Installation and Wiring Notes

The probe may be mounted at any angle from horizontal to vertically downward; ABB notes that horizontal probes longer than 2.0 m may need support. Reference air and test gas must be clean, dry and oil-free, passed through a 5 micron oil-coalescing filter-regulator from a supply of no more than 10 bar. Where no instrument air is available, ABB offers a reference air pump. On remote systems the cable screens are connected only at terminal 3 in the remote terminal housing and must not be earthed anywhere else. The mains input is protected by a 1.0 A type F fuse.

Why Seven Star LLC

Seven Star LLC supplies ABB Endura oxygen analyzers, probes and spares across Oman and the GCC. Before quoting, we confirm the complete order code, including probe insertion length, flange, transmitter type and AutoCal option, against the duct geometry and process conditions of the installation.

Request a Quote for ABB Endura AZ20 Combustion Gas Oxygen Analyzer

Send the AZ20 order code or nameplate data, quantity, flue gas temperature, duct or stack dimensions, required probe length and flange, and whether AutoCal and HART are needed through our Inquiry Form. We will confirm the configuration and respond with a formal quotation.

How the ABB Endura AZ20 oxygen analyzer works

A heated zirconium oxide cell sits at the tip of the probe inside the flue gas. The cell produces a signal that depends on the oxygen content. The transmitter converts the signal into a 4 to 20 mA output.

Where the ABB Endura AZ20 oxygen analyzer is used

Boilers
Furnaces
Fired heaters
Combustion trim control
Flue gas O2 measurement

Selection checklist for the ABB Endura AZ20 oxygen analyzer

Probe insertion length
Flange type
Transmitter type
AutoCal option
Output needs
Relay needs
Process temperature
Test gas supply

Installation, commissioning and maintenance notes for the ABB Endura AZ20 oxygen analyzer

Mount the probe on its flange in the flue and connect the transmitter. Connect the test gas lines if the AutoCal option is fitted. Check the calibration and the probe at regular intervals.

Requesting a quotation for the ABB Endura AZ20 oxygen analyzer

Please send the probe length, the flange and the transmitter type. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

AZ20 analyzer type

It is an in-situ combustion oxygen analyzer.

AZ20 maker

It is made by ABB.

AZ20 family

It is part of the Endura combustion analyzer family.

AZ20 direct measurement

It measures O2 directly in the flue gas.

AZ20 sensing cell

It uses a heated zirconium oxide cell.

AZ20 cell position

The cell is mounted at the tip of the probe.

AZ20 no sample

No sample is extracted.

AZ20 sample delay

The measurement avoids sample transport delay.

AZ20 sample system

It avoids sample system maintenance.

AZ20 construction

It consists of a probe with a transmitter.

AZ20 transmitter

The transmitter is integral or remote.

AZ20 range

The display range is 0.01 to 100% O2.

AZ20 probe material

The probe is 316L stainless steel.

AZ20 process temperature

Process temperature runs up to 800 degrees C.

AZ20 insertion length

Insertion lengths run from 0.5 m to 4.0 m.

AZ20 length steps

Lengths come in steps of 0.5 m.

AZ20 AutoCal

An AutoCal option has built-in solenoid valves.

AZ20 test gas switches

AutoCal also has test-gas pressure switches.

AZ20 analog output

It has a 4 to 20 mA output with HART.

AZ20 second output

An optional second isolated output is available.

AZ20 relay outputs

It has two relay outputs.

AZ20 digital I/O

Two optional digital I/O points can be input or output.

AZ20 heater supply

The probe heater supply is 100 to 240 V AC.

AZ20 flanges

Several flange sizes and standards are available.

AZ20 duty

It is used for combustion trim control and emissions-related O2 measurement.

Analyzer records for the ABB Endura AZ20 oxygen analyzer

Record the calibration date, the O2 reading and the date of each check.

Choosing the right ABB Endura AZ20 oxygen analyzer probe length

Choose the insertion length from the wall thickness and the flue width.

Datasheets & Documents

Datasheet ABB Endura AZ20 Combustion Gas Oxygen Analyzer Datasheet Download

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About brand

ABB, formed in 1988 and headquartered in Zurich, covers an unusually long stretch of a plant's equipment list, from the flowmeter and analyzer in the field to the drive, breaker and protection relay in the electrical room.

Seven Star LLC is an independent supplier serving Oman and the GCC. Our ABB listing concentrates on measurement and analytics: ABB flowmeters, liquid analysis sensors and systems, level and pressure instruments. It also includes valve actuators, low voltage circuit breakers, ABB drives, soft starters and protection relays.

ABB product families on this page

Flow measurement includes ABB electromagnetic, Coriolis, vortex and swirl meters, sold under names such as ProcessMaster, AquaMaster, CoriolisMaster and SwirlMaster. Liquid analysis covers pH, conductivity and dissolved oxygen sensors with their transmitters. SensyTemp TSP sensors handle temperature. On the electrical side the listing has ACS355 machinery drives, the ACS550 general purpose drive, the ACQ580 for water and wastewater and the ACS880-01 industrial drive, with fieldbus adapters such as the FPBA-01 for PROFIBUS DP. Protection and switching products include SACE Tmax XT molded case breakers, SACE Emax 2 air circuit breakers, PSR soft starters and the REM615 and RET615 relays.

Where ABB instruments and drives are used

Water and wastewater plants use the electromagnetic flowmeters, analyzers and ACQ580 drives together. Oil and gas, power and chemical plants specify the Coriolis and vortex meters, pressure and level transmitters and the 615 series relays for motor and transformer feeders. The drives run pumps, fans, conveyors and compressors in almost every industry.

Ordering ABB parts: what we need

For drives send the full type code from the rating label, for example ACS355-03E-05A6-4, plus the serial number if it is a replacement. For instruments send the complete order code, measuring span, process connection, wetted materials, output or protocol and the hazardous area approval. For breakers give frame size, rated current, breaking capacity, number of poles, trip unit and fixed or withdrawable version.

Frequently Asked Questions

What does the ABB Endura AZ20 measure?

It measures oxygen (O2) directly in flue and exhaust gas with a zirconium oxide cell mounted at the probe tip, over a range of 0.01 to 100% O2.

How fast is the AZ20 response?

T90 response is under 10 seconds with an initial dead time of 3 seconds, which allows fast combustion trimming.

What process temperature can the AZ20 probe withstand?

The robust probe operates at process temperatures up to 800 C (1472 F), with probe lengths up to 4.0 m (13.1 ft) for large ducts.

Does the AZ20 support automatic calibration?

Yes. The integrated AutoCal system provides fully automatic calibration with two solenoid valve outputs and two test-gas detection inputs, eliminating the need for an external calibration panel.

What communication does the AZ20 provide?

A galvanically isolated 4-20 mA analog output with HART communication, plus two relay outputs rated 5 A at 230 VAC or 30 VDC.

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