ABB Endura AZ20 Manual page 2

Endura AZ20 Oxygen Systems
Endura AZ20 5µm/Oil Coalescing Filter Regulator
3 Identification
The filter regulator can simultaneously supply up to 6 ABB
zirconia-based in situ oxygen sensors with reference air at 0.3 to
0.5 l/min (0.64 to 1.06 scfh) and test gas air at 2.2 l/min (4.662
scfh).
Two models are available – see Table 3.1:
Description
5µm/oil coalescing filter regulator –
1 1
/ NPT ( / in. OD compression
4 4
fitting, female thread)
5µm/oil coalescing filter regulator –
1
/ BSP (6 mm OD compression
4
fitting, female thread)
Table. 3.1 5µm/Oil Coalescing Filter Regulator Models
2
Each unit contains 2 replaceable filter cartridges – see Table 3.2:
ABB Part Number
Table. 3.2 Replacement Filters
AZ200 731
AZ200 732
Description
5µm Filter cartridge
Oil coalescing filter cartridge
Notes.

The filters on the regulator unit provide a safeguard
against water and oil passing through to the oxygen
sensor under fault conditions of the customer air
supply only.

Under normal operating conditions, it is important that
the customer's inlet air supply is free from oil, water
and oil vapor.
3 Identification
ABB Part Number
AZ200 740
AZ200 741
INF09/029 Rev. C