2 Relay outputs and a traditional analog output are fitted as

standard, with the option of adding a second analog output or 2

digital inputs/outputs (I/O).

The Endura AZ20 transmitter is equipped with HART

communication as standard, supported by a full Device Type

Manager (DTM) to enable remote access to the analyzer through

a user-friendly graphical interface. The DTM provides full access

to the transmitter setup, logged data and diagnostics

information as well as live data.

The IrDA standard infrared communication port can also be

used with the DTM to upload and download device

configurations. In addition, it enables data logged values and

diagnostics to be viewed on a hyperterminal interface or a PC.

The device’s firmware can also be upgraded using this port.

Advanced diagnostics, in accordance with NAMUR NE107.

classify alarms and warnings as ‘Maintenance Required’,

‘Check Function’, ‘Failure’ and ‘Out-of-Specification’. Cell

performance is monitored by the transmitter; indicators such as

cell impedance, rate-of-response to test gasses and changes in

calibration offset/factor are recorded and analyzed. The current

cell ‘quality’ is displayed by the transmitter as a visual indication

of the measurement confidence; providing the operator all the

information required to keep the monitor operating at peak

performance.

The Performance Log holds up to 100 time-stamped events.

When the log is full, the oldest data is overwritten by new

entries. The log contains details of measurements and

coefficients for all calibrations and accuracy checks.

Advanced Transmitter

The Endura AZ20 transmitter incorporates the most up-to-date

design and technology available today.

ABB’s universal human/machine interface (HMI) with its large,

clear, backlit graphical display, ‘through-the-glass’ control and

intuitive menu structure simplifies transmitter configuration and

operation.

The user-friendly interface enables fast, easy data entry for all

parameters and the ‘Easy Setup’ menu speeds and simplifies

system commissioning.

Long-term operation without technician intervention minimizes

operating costs, total cost-of-ownership, optimizes system

accuracy and contributes to the CEMS (Continuous Emmissions

Monitoring Compliance). A significant proportion of service visits

to an analyzer result in ‘no fault found’.

Advanced Automatic Calibration Facility

Integrated automatic calibration secures the oxygen

measurement, providing complete confidence in the analyzer’s

performance.

Long-term operation without technician intervention minimizes

operating costs, total cost-of-ownership, optimizes system

accuracy and contributes to the CEMS (Continuous Emmissions

Monitoring Compliance). A significant proportion of service visits

to an analyzer result in ‘no fault found’. Endura AZ20’s

high-quality

manufacture, advanced diagnostics and

fully-integrated, automatic calibration is targeted at reducing this

wasted effort and cost.

The user-friendly interface enables fast, easy data entry for all

parameters and the ‘Easy Setup’ menu speeds and simplifies

system commissioning.

Flow Rate Control using Flow Restrictors

The flow rates of test gas and reference air are important to the

accurate operation of Zirconia-based oxygen analyzers and,

traditionally, control has been achieved using ancillary

flowmeters and flow control valves.

The Endura AZ20 offers a new approach with the inclusion of

optional flow restrictors. These are fitted within the probe to

control the flow rate of the reference air and test gasses,

removing the need for additional flowmeters fitted with flow control valves.

This innovative approach enables the gasses to be controlled by

pressure only. 1 Bar (15 psi) is applied directly to the probe’s gas

ports and the correct flow rate is then set by the flow restrictors.

Unique Integrated Automatic Calibration

The all new Endura AZ20 automatic calibration system

eliminates the need for the expensive ancillary equipment

required for automatic calibration on traditional flue gas oxygen

analyzer systems. ABB’s fully integrated, automatic calibration

feature controls the test gas sequence and detects test gas

availability, eliminating incorrect calibrations due to loss of test gas.

Easy Cell Release

The Endura AZ20 probe has retained the easy-access cell arrangement of the previous generation ZFG2 probes.

Cell replacement can be performed on-site using basic hand tools;

even after long periods of high temperature operation where screw threads have ‘seized’ and can no longer be released.

Kits containing all the parts needed to complete maintenance are available

from ABB to ensure a technician can perform services quickly, efficiently and at minimum cost.

Proven Cell Design

ABB’s metallurgically bonded, multi-layer electrode technology increases

the cell’s resistance to sulphurous and reducing atmospheres and high temperature operation.

This extends the life-cycle of the cell in the most arduous applications such as sulphur recovery processes,

crematoria and industrial/clinical waste incineration.

Advanced Design

Designed and manufactured to exacting standards, the Endura AZ20 ensures long periods

of trouble-free operation in even the most arduous of applications.

The operating process temperature of up to 800 °C (1472 °F) extends system suitability

into previously impossible applications and enables optimum probe location within the process.

The modular design, with reduced component count, improves the robustness and 

reliability of the system and simplifies routine maintenance and servicing.

Complete traceability ensures only the highest quality materials are used in the analyzer’s

construction and rigorous manufacturing, inspection and testing procedures

(to international standard ISO 9001) result in a monitor of superior quality with prolonged probe life.

ABB’s metallurgically bonded, multi-layer electrode technology increases

the cell’s resistance to sulphurous and reducing atmospheres and high temperature operation.

This extends the life-cycle of the cell in the most arduous applications such as sulphur recovery processes,

crematoria and industrial/clinical waste incineration.

Introduction

The Endura AZ20 is the latest in a long line of high-quality, 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.

Probe Lengths up to 4.0 m (13.1 ft.)

A wide range of probe insertion lengths from 0.5 to 4.0 m (1.7 to 13.1 ft.) enable installation

to the optimum measuring point for accurate oxygen measurement within the duct; even in the largest flue gas ducts and stacks.

A comprehensive range of mounting flanges provide simple installation

when plant-wide standard flanges are required or when replacing existing probes.

The transmitter can be probe- or remote-mounted at distances of up to 100 m (328 ft.),

thus providing versatile system options for all applications.

The probe-mounted transmitter option provides the lowest cost of installation.

However, the remote-mounted transmitter provides flexibility when the operationally ideal probe location does not provide easy access for the user.

Explosion-proof motors

ABB’s high voltage explosion-proof motors are designed to withstand the pressure

caused by an internal explosion without causing any damage.

Our explosion-proof motors are the safe choice for applications in potentially explosive atmospheres

where the most important specifications of the oil and gas industry are required.

Power range: up to 1.6 mw (7.5 MV)

Voltage range: up to 11 kV

Shaft height: IEC 355-500 (500-900)

Number of poles: 2-18

Cooling: IC411. IC416 (IC511. IC516)

Protection: IP55. up to IP66

Operation: DOL, VSD

Operating environment: Explosion-proof, explosion-proof for added safety

Core Applications.

Pumps, fans, blowers, compressors, centrifuges in hazardous areas for most industry applications.

ABB’s high voltage rib-cooled design motors set the benchmark for the industry,

delivering more watts per kilogram than has previously been achieved with rib-cooled motors,

which also allows for simple configurability and built-in maintainability.

Standards: IEC/NEMA

Power range: up to 2240 kW / 3000 HP

Voltage range: up to 11.5 kV

Shaft height: IEC 315-560/NEMA 5000-5800

Number of poles: 2-12

Cooling: IC411.IC416 / TEAC, TEFC

Protection: IP55. up to IP66

Operation: DOL, VSD

Operating environment: Safe area, Hazardous area

Core applications.

Pumps, fans, blowers, compressors, hoists, conveyors, extruders, mills, cutting, saws