Introduction - ABB Endura AZ series User Manual

Endura AZ series integral and remote transmitter
Combustion oxygen monitor

2 Introduction

The new Endura AZ20 is the latest in a long line of high-quality, combustion gas analyzers from ABB and
provides continuous monitoring of oxygen content in applications using in situ probes.
Operation and programming of the Endura AZ20 is via four capacitive switches and a digital display located
on the front of the transmitter.
In operation, the transmitter can display measured % oxygen, cell mV, cell temperature or probe heater
output. Set-up of alarm, retransmission and calibration parameters is achieved in programming mode,
where key parameters are protected by security codes.
Measured oxygen values can be retransmitted to remote equipment using the retransmission output facility.
The range of values retransmitted can be set anywhere within the transmitter's display range of 0 to
100 % O .
2
Remote alarm indication is provided by two relay outputs. Relays are programmed to activate when the
oxygen level moves either above or below a pre-defined set point. The alarm relay can also be used as a
'general alarm' that is activated in the event of a transmitter or system fault.
This User Guide provides the following information:

installation details for a remote AZ20 transmitter – see Section 3, page 8

probe cable, power supply and output connection details for remote and integral AZ20 transmitters –
see Section 4, page 11

programming, calibration and troubleshooting information for remote and integral AZ20 transmitters
Warning.

System configuration must be carried out only by users or personnel with approved access rights
(user privileges).

Read all relevant sections of this guide before configuring the system or modifying system
parameters.

Install and use this equipment as detailed in this guide. Install and use associated equipment in
accordance with the relevant national and local standards.
IM/AZ20E–EN Rev. F
2 Introduction
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