Brand: ABB

ABB Endura AZ40 Oxygen and Carbon Monoxide Analyzer

Name: ABB Endura AZ40 Oxygen Carbon Monoxide Analyzer – Datasheet
Brand: ABB

Description

Overview

The ABB Endura AZ40 oxygen carbon monoxide analyzer is a close-coupled extractive combustion analyzer that measures excess oxygen (O2) and combustibles as carbon monoxide equivalent (COe). Oxygen is measured by a zirconium oxide cell, while COe is measured by a catalytic sensor downstream of metered dilution air, which keeps the COe sensor working when combustion oxygen is very low.

The sensor assembly mounts on the process wall with the probe and filter in the flue gas; an air-powered ejector draws the sample through a heated sample path to prevent acid-gas condensation. An integral flame arrestor prevents flash-back if combustibles exceed the LEL during start-up, shutdown or upsets. The AZ40 is part of ABB’s Endura combustion analyzer family, alongside the in-situ Endura AZ20 oxygen analyzer.

Key Features

O2 and COe measurement in one close-coupled system (oxygen-only version available)
Response time t63: O2 < 3.5 s, COe < 13 s
COe span up to 0 to 20,000 ppm
Integral flame arrestor and heated sample path
Built-in AutoCal solenoid valves and optional programmable blowback
NAMUR NE107 diagnostics and SD card logging, configuration and firmware upgrade
Four isolated analog outputs, six relays and Modbus communication

Technical Specifications

Parameter	Value
Order code	AZ40/ (configured code: transmitter, sensor, probe type and length, flange, certification, supply)
Measured variables	O2 and carbon monoxide equivalent (COe)
O2 span	Minimum 0 to 5%, maximum 0 to 25%
COe span	Minimum 0 to 500 ppm, maximum 0 to 20,000 ppm
Response time (t63)	O2 < 3.5 s; COe < 13 s
Accuracy O2	±2.5% of reading or ±0.5% O2, whichever is greater
Accuracy COe	±20 ppm or ±2% of span (200 to 999 ppm); ±400 ppm or ±2% of span (1,000 to 20,000 ppm)
Temperature input	Thermocouple type B, E, J, K, N, R, S, T
Standard probe	600 to 2,100 mm nominal; up to 649 °C (primary filter) or 816 °C (with secondary filter)
High-temperature probe	600, 900, 1,200 mm; up to 1,650 °C (600 mm) / 1,370 °C (900 mm) / 1,232 °C (1,200 mm)
Process connections	ANSI 2/3/4 in, DIN 80/100
Analog outputs	4 isolated, 0 to 22 mA
Relay outputs	6, normally closed, 2 A at 230 V AC
Digital inputs	4, volt-free contact
Communication	Modbus (ordered option)
Supply	85 to 265 V AC, 50/60 Hz
Ambient temperature	Transmitter -20 to 55 °C; sensor -20 to 70 °C
Ingress protection	Transmitter IP66/NEMA 4X; sensor IP55/NEMA 4
Approvals	CE (EN 61010); cFMus ordinary locations
Instrument air supply	350 to 700 kPa (50 to 100 psig), regulated to 207 kPa (30 psig) at the sensor
Air consumption	15 l/min at 207 kPa
Process pressure range	±5 kPa
Power consumption	Transmitter under 60 W; sensor under 730 W at start-up, under 310 W in operation
Storage temperature	-40 to 85 °C
Operating humidity	Up to 95% RH, non-condensing
EMC	EN 61326, industrial
Display	89 mm (3.5 in) backlit colour, 6 operator keys
Weights	Sensor assembly 9.0 kg; transmitter 7.6 kg (unpacked)
Sensor-to-transmitter cable lengths	10, 25, 50 or 75 m
Data logging interval	Programmable from 1 second to 60 minutes

Applications

Combustion optimisation of boilers and fired heaters in refineries and petrochemical plants
Burner malfunction detection and combustion safety monitoring on process furnaces
Excess-air control on utility and industrial boilers in power and desalination plants
Combustion monitoring on kilns and incinerators

ABB Endura AZ40 Ordering Code and Options

The AZ40 order code is built in four blocks after the AZ40/ prefix: transmitter, sensor, probe and additional items. In the transmitter block the first digit selects no transmitter, the standard transmitter, or standard plus Modbus, so Modbus is an ordered option. The next digits select the cable entry (metric or NPT gland pack) and whether a remote transmitter is included.

The sensor block selects oxygen only or oxygen plus combustibles, the sensor cable entry type, and the smart sensor version. The probe block sets the probe type (standard or high temperature), the nominal length (600, 900, 1,200, 1,500, 1,800 or 2,100 mm), the flange (ABB heritage, DIN 80, DIN 100, ANSI 2, 3 or 4 in) and the filter. ABB requires the secondary filter when the process temperature is between 650 and 815 °C.

The final block covers interconnecting cable length (10, 25, 50 or 75 m), blowback hardware, certification, language, supply voltage (115 V AC or 230 V AC) and options such as the calibration set-up kit and a stainless steel tag.

ABB Endura AZ40 Installation and Wiring Notes

The sensor needs clean instrument air through two-stage coalescing filtration, with a dew point at least 10 °C below the lowest site ambient temperature, particles no larger than 3 microns and oil content not above 1 ppm. Air and test gas lines must be 1/4 in copper or stainless steel tube and must slope down to the sensor. Zero and span test gases are regulated to 1 bar (15 psig); instrument air (20.95% O2) is recommended as the span gas. ABB supplies the 3-core power and 4-core signal cables between transmitter and sensor. Blowback and thermocouple wiring runs longer than 30 m need conduit or screened cable.

Why Seven Star LLC

Seven Star LLC supplies ABB Endura analyzers, probes, filters and calibration accessories across Oman and the GCC. Before quoting, we confirm the full AZ40 order code, including probe type and length, flange, filter option and certification, against the process temperature and existing installation.

Request a Quote for ABB Endura AZ40 Oxygen and Carbon Monoxide Analyzer

Send the AZ40 order code or nameplate data, quantity, flue gas temperature, duct dimensions, fuel type, required probe length and flange, and communication needs through our Inquiry Form. We will confirm the configuration and respond with a formal quotation.

Where the ABB Endura AZ40 oxygen carbon monoxide analyzer is used

Combustion control on boilers
Process heaters
Furnaces
Flue gas monitoring
Start-up and shutdown monitoring

Selection checklist for the ABB Endura AZ40 oxygen carbon monoxide analyzer

Oxygen only or oxygen with carbon monoxide
Probe type and length
Flange
Flue gas temperature
Supply
Outputs and relays
Calibration and blowback needs
Order code

Installation, commissioning and maintenance notes for the ABB Endura AZ40 oxygen carbon monoxide analyzer

Mount the sensor assembly on the process wall with the probe and filter in the flue gas. Connect the supply, the outputs and the sample air. Check the filter, the calibration and the sample path at regular intervals.

Requesting a quotation for the ABB Endura AZ40 oxygen carbon monoxide analyzer

Please send the application, the probe length and the flue gas conditions. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

Endura AZ40 analyzer type

It is a close-coupled extractive combustion analyzer.

Endura AZ40 maker

It is made by ABB.

Endura AZ40 measurements

It measures excess oxygen and combustibles as carbon monoxide equivalent.

Endura AZ40 oxygen cell

Oxygen is measured by a zirconium oxide cell.

Endura AZ40 combustibles sensor

The carbon monoxide equivalent is measured by a catalytic sensor.

Endura AZ40 dilution air

The catalytic sensor sits downstream of metered dilution air.

Endura AZ40 low oxygen

The dilution air keeps the combustibles sensor working when combustion oxygen is very low.

Endura AZ40 oxygen-only

An oxygen-only version is available.

Endura AZ40 mounting

The sensor assembly mounts on the process wall with the probe and filter in the flue gas.

Endura AZ40 ejector

An air-powered ejector draws the sample through the sample path.

Endura AZ40 heated path

The sample path is heated to prevent acid-gas condensation.

Endura AZ40 flame arrestor

An integral flame arrestor prevents flash-back if combustibles rise during start-up, shutdown or upsets.

Endura AZ40 calibration

Built-in AutoCal solenoid valves handle calibration gas.

Endura AZ40 blowback

Programmable blowback is optional.

Endura AZ40 diagnostics

Built-in diagnostics report the condition of the analyzer.

Endura AZ40 logging

An SD card handles logging, configuration and firmware upgrade.

Endura AZ40 outputs

It has four isolated analog outputs, six relays and Modbus communication.

Endura AZ40 family

It belongs to the Endura combustion analyzer family together with the in-situ Endura AZ20 oxygen analyzer.

Endura AZ40 documentation

Manufacturer documentation is supplied with a quotation.

Endura AZ40 support

Seven Star LLC gives local technical support with selection.

Combustion records for the ABB Endura AZ40 oxygen carbon monoxide analyzer

Record the oxygen and carbon monoxide readings, the calibration dates and the filter checks.

Choosing the right ABB Endura AZ40 oxygen carbon monoxide analyzer probe

Choose the probe from the flue gas conditions, the wall thickness and the measurements needed.

Datasheets & Documents

Datasheet ABB Endura AZ40 Oxygen and Carbon Monoxide 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 AZ40 measure?

It measures oxygen (O2) and carbon monoxide equivalent (COe) in combustion flue gas, with a COe range up to 20,000 ppm, in a single close-coupled system.

What is the response time of the AZ40?

Response to 63% of span is under 3.5 seconds for O2 and under 13 seconds for COe.

How is flashback prevented on the AZ40?

An integral flame arrestor in the sample path prevents flash-back if combustible levels exceed the lower explosive limit (LEL) during startup, shutdown or process disturbance.

What process temperatures does the AZ40 handle?

The system covers process temperatures from a minimum of 260 C (500 F) to a maximum of 1,649 C (3,000 F), with a heated sample path preventing acid-gas condensation.

What outputs does the AZ40 provide?

Six normally-closed relay outputs, two internal AutoCal solenoid valves, an RS485 probe connection and 115/230 V AC power, with an IP66/NEMA 4X transmitter.

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