Specification - ABB Endura AZ25 Series User Manual

Endura AZ25 series probe
Combustion oxygen monitor

6 Specification

Physical
Probe insertion lengths
556 mm (21.89 in.)
701 mm (27.60 in.)
801 mm (31.53 in.)
901 mm (35.47 in.)
956 mm (37.64 in.)
1251 mm (49.25 in.)
Process connection
All probe lengths:
ANSI B16.5 150 lb
2, 2.5, 3, 4 in
DIN2501 Part 1
65, 80, 100 mm
JIS B2238 5K
65, 80, 100 mm
1 in. NPT
1 in. BSP
(flange pressure ratings do not apply)
ABB pattern heritage flange
Probe body material
Aluminous Porcelain
Incoloy 800
Recrystallized alumina
Mounting angle
Horizontal to vertically down
Process conditions
Process temperature
Aluminous Porcelain: 600 to 1250 °C (1112 to 2282 °F)
Incoloy 800: 600 to 850 °C (1112 to 1562 °F)
Probe mounted horizontally – Incoloy 800:
600 to 1000 °C (1112 to 1832 °F)
Probe mounted vertically down – recrystallized alumina:
600 to 1400 °C (1112 to 2552 °F)
Process pressure
5 kPa (0.7 psi) positive or negative
OI/AZ25P–EN Rev. E
Operating requirements
Reference air
Regulated supply:

probes with restrictors:
reference air supply set to 1 bar (15 psi), gives flow of
0.3 to 0.5 l / min (0.64 to 1.06 scfh) – flowmeters not required

probes without restrictors:
1 bar (15 psi) flowmeters required with flow set to
0.3 to 0.5 l / min (0.64 to 1.06 scfh
Pumped supply:

probes with / without restrictors:
required preset flow: 0.3 to 0.5 l / min (0.64 to 1.06 scfh)
Test gas
User-selectable, 25 to 0.1 % O2 balance N2 and / or air (air 20.95 %
is recommended as one of the test gases)

AutoCal system with restrictors:
1 bar (15 psi) – flowmeters not required as restrictors preset flow
to 1 l/min (2.118 scfh)

systems without restrictors:
1 bar (15 psi) flowmeters required, set to 1 l/min (2.118 scfh)
Calibration
Manual, semi-automatic or automatic (controlled by Endura AZ25
transmitter)
Automatic calibration
AutoCal hardware
Optional standalone unit with built-in solenoid valves for
control of test gas flow
Built-in pressure switches to detect presence of test gases
6 Specification
DS/AZ25-EN Rev. E
31