Overview / System Dimensions - ABB Endura AZ40 Manual

1

Overview / system dimensions

The Endura AZ40 combustion gas analyzer continuously
samples and analyzes combustion waste gases for both
oxygen and carbon monoxide equivalent (COe).
The analyzer has 4 main assemblies:
— transmitter (controller / display unit), see Fig. 2
— sensor assembly (housing a zirconia-based oxygen sensor,
catalytic COe sensor and an air powered aspirator),
see Fig. 3
— smart sensor electronics (part of the sensor assembly),
see Fig. 3
— probe / filter assembly, see Fig. 3
270
(10.6)
M25 or
1
M20 or / in.
2
NPT entry
58 (2.3)
(2.1)
Cable entries – mains power in/sensor signal input and user I/O
Fig. 2 Endura AZ40 transmitter – main components / dimensions
Calibration gas inlet
Vacuum test port
Instrument air inlet
Smart sensor electronics
Fig. 3 Endura AZ40 sensor assembly – main components / dimensions
CI/AZ40-EN Rev. A
300 (11.8)
330 (13)
3
/ in. NPT entry
4
54 46.5 46.5 54 40
(1.8) (1.8) (2.1) (1.6)
127 (5)
141 (5.6)
The analyzer uses a close-coupled sampling system where the
sensor assembly is mounted directly against the process wall.
The sample is filtered and drawn through the sensor assembly
by the air powered aspirator.
This combination of a short sample path and pumped sample
provides a very rapid response to changing gas concentrations.
The gas sample is held above the sample dew point to provide
analysis on a 'wet' basis and prevent acid gases from
condensing in the sample path.Thermocouple inputs for
process temperature measurement enable calculations of
combustion efficiency.
53 (2.1)
Zero gas inlet
Span gas inlet
Calibration gas outlet
1
M20 or / in.
2
NPT entry
84 (3.3)
154.5 (6.1)
367
(14.4)
153 (6)
136 (5.4)
300
(11.8)
Probe / Filter assembly
Standard 2 in. ANSI mounting adapter
Sensor data label
Cable entries –
mains power in / signal outputs
92.4 (3.6)
5