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ABB MEASUREMENT & ANALYTICS | INSTRUCTION | INF09/027-EN REV. F
Endura AZ20, AZ25, AZ30
Reference air pump
Pumped reference air unit
Measurement made easy
Introduction
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,
ZFG2 and ZGP2
Note. The pump cannot be used with multiple
probes simultaneously.
Pumped reference air unit models
4 pump models are available – see Table 1:
Description Part No.
Table 1 ABB pumped reference air unit part numbers
Spares/replaceable items
Description Part No.
Internal air filter
Table 2 Spares/replaceable items
For more information
Further information is available from:
www.abb.com/analytical
or by scanning these codes:
Sales Ser vice
Pumped reference
air unit
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