Pneumatic Connection Configurations - ABB Endura AZ25 Series User Manual

Endura AZ25 series probe
Combustion oxygen monitor

3.5.4 Pneumatic connection configurations

The pneumatic configuration of each probe is detailed on the probe identification label – see Section 3.3, page 7.
To identify the pneumatic configuration of your probe:
1. Remove the probe head cover and refer to the product code on the probe identification label to determine if restrictors are
fitted / not fitted:
– code AZ25/X.X.X.1... = no restrictor fitted
– code AZ25/X.X.X.3... = restrictor fitted
2. Refer to the flowchart below (Fig. 3.6) to identify which configuration is the closest match for your system and refer to the
relevant figure in Sections 3.5.5 (page 12) to 3.5.7 (page 13) for flow rates.
Refer to the product code on the
probe data label (inside the probe
head) to identify system configuration
Restrictor not fitted
AZ25/X.X.X.1.X.........
AZ25/X.X.X.3.X.........
Restrictor fitted
Flowmeters not required
(test gases must be applied as pressure)
ABB filter / regulator
*Is probe
connected to
AutoCal?
Yes
See
No
Fig. 3.7
page 12
See
Fig. 3.11
page 14
Fig. 3.6 Pneumatic connection configurations (schematic)
OI/AZ25P–EN Rev. E
Yes
Reference
air supply
ABB air pump
*Is probe
connected to
AutoCal?
Yes
No
See
Fig. 3.8
page 12
See
Fig. 3.12
page 14
(probe shown with cover removed)
*Is probe
fitted with a
No
restrictor?
(test gas flow must be regulated by flowmeters)
ABB filter / regulator
*Is probe
connected to
AutoCal?
Yes
See No
Fig. 3.9
page 13
See
Fig. 3.11
page 14
3 Mechanical installation
Endura AZ25 probe
Flowmeters required
Reference
air supply
ABB air pump
*Is probe
connected to
AutoCal?
No
See
Fig. 3.12
page 14
Yes
See
Fig. 3.10
page 13
11