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A B B M E A S U R E M E N T & A N A LY T I C S | I N S T R U C T I O N | I N F 0 9/0 2 7- E N R E V. F
Endura AZ20, AZ25, AZ30
Reference air pump
Pumped reference air unit
Introduction
Pumped reference
air unit
This publication details the installation, connection
and maintenance of an ABB Pumped Reference Air
Unit. This pump supplies reference air to any of the
following ABB oxygen probes:
• AZ20, AZ25, AZ20/ZFG2 replacement,
Note. The pump cannot be used with multiple
probes simultaneously.
Pumped reference air unit models
4 pump models are available – see Table 1:
Description
1/4 BSP (Metric) 230 V AC 50/60 Hz AZ200 770
1/4 BSP (Metric) 115 V AC 50/60 Hz AZ200 771
1/4 NPT (Imperial) 230 V AC 50/60 Hz AZ200 772
1/4 NPT (Imperial) 115 V AC 50/60 Hz
Table 1 ABB pumped reference air unit part numbers
ZFG2 and ZGP2
Measurement made easy
Spares/replaceable items
Description
Air pump – pre-2016: 230 V, 60 Hz
Air pump – pre-2016: 115 V, 60 Hz
Air pump – post-2016: 230 V, 60 Hz
Air pump – post-2016: 115 V, 60 Hz
Pre-2106 to post-2016 upgrade kit: 230 V, 60 Hz
Pre-2106 to post-2016 upgrade kit 115 V, 60 Hz
Internal air filter
Table 2 Spares/replaceable items
For more information
Part No.
AZ200 770
Further information is available from:
AZ200 771
www.abb.com/analytical
AZ200 772
AZ200 773
or by scanning these codes:
Sales
AZ200 768
AZ200 769
AZ200 755
AZ200 756
AZ200 748
AZ200 749
Service
Part No.
0217463