Overview - ABB Endura AZ30 series Programming Manual

Endura AZ30 series integral probe and remote transmitter
Combustion oxygen monitor

3 Overview

3 Overview
The Endura AZ30 provides continuous monitoring of the oxygen content of processes located in hazardous
areas, it is certified to: Class 1 zone 1 and zone 2 – gas groups IIA, IIB + H2, Class 2 zone 21 and zone 22
– dust group IIIC plus Class 1 Div 1 gas groups BCD, Class II Div 1 dust groups EFG.
Operation and programming of the Endura AZ30 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.
Note. Operating the system in oxygen-enriched atmospheres will invalidate / compromise certification.
10 COI/AZ30E–EN Rev. D