ABB Endura AZ20 series User manual
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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 Service
Pumped reference
air unit
2ENDURA AZ20, AZ25, AZ30 | PUMPED REFERENCE AIR UNIT | INF09/027-EN REV. F
1 Health & Safety
the following points must be noted:
• The relevant sections of these instructions must be read
carefully before proceeding.
•
observed.
• Installation, operation, maintenance and servicing must
only be carried out by suitably trained personnel and in
accordance with the information given.
•
possibility of an accident occurring when operating in
conditions of high pressure and / or temperature.
Safety advice concerning the use of the equipment described in
this manual or any relevant Material Safety Data Sheets (where
applicable) may be obtained from the Company address on the
Document symbols
Symbols that appear in this document are explained below:
DANGER
The signal word ‘DANGER’ indicates an imminent danger.
Failure to observe this information will result in death or
severe injury.
WARNING
The signal word ‘WARNING’ indicates an imminent danger.
Failure to observe this information may result in death or
severe injury.
CAUTION
The signal word ‘CAUTION’ indicates an imminent danger.
Failure to observe this information may result in minor or
moderate injury.
NOTICE
The signal word ‘NOTICE’ indicates potential material
damage.
Note
‘Note’ indicates useful or important information about the
product.
Product symbols
Symbols that may appear on this product are shown below:
Protective earth (ground) terminal.
Functional earth (ground) terminal.
This symbol, when noted on a product, indicates a
injury and/or death. The user should reference this
instruction manual for operation and/or safety
information.
This symbol, when noted on a product enclosure or
electrocution exists and indicates that only
should open the enclosure or remove the barrier.
Recycle separately from general waste under the
WEEE directive.
Safety precautions
WARNING
The installation of the pump should be performed
on electrical installations, in accordance with relevant local
regulations.
Information in this document is intended only to assist our
customers in the efficient operation of our equipment. Use of
this manual for any other purpose is specifically prohibited and
its contents are not to be reproduced in full or part without
prior approval of the Technical Publications Department.
or operating this pump.
Pay particular attention to all warning and caution statements.
Failure to do so could result in serious injury to the operator or
damage to the equipment.
To ensure the protection provided by this equipment is not
impaired, do not use or install this equipment in any manner
other than that which is specified in this manual.
3
ENDURA AZ20, AZ25, AZ30 | PUMPED REFERENCE AIR UNIT | INF09/027-EN REV. F
Electrical Safety – CEI / IEC 61010-1:2001-2
This equipment complies with the requirements of CEI / IEC
61010-1:2001-2 ‘Safety Requirements for Electrical Equipment
for Measurement, Control and Laboratory Use’ and complies
If the equipment is used in a manner NOT specified by the
Company, the protection provided by the equipment may be
impaired.
WARNING
• Isolate electrical supplies to the system and reference air
pump enclosure before proceeding with pump
replacement.
• Isolate the air supply to the reference air pump (part
numbers AZ200 770/AZ200 771/AZ200 772/AZ200 773)
before replacing the pump unit.
• Observe all relevant health and safety procedures for
equipment maintenance.
Product recycling and disposal
(Europe only)
not be disposed of in European public disposal
systems after 12 August 2005. To conform to
European local and national regulations (EU Directive
2002/96/EC), European electrical equipment users
must now return old or end-of-life equipment to the
manufacturer for disposal at no charge to the user.
environmental damage or pollution caused by any of
Information on ROHS Directive 2011/65/EU
(RoHS II)
ABB, Industrial Automation, Measurement & Analytics,
by IAMA UK on and following the 22nd of July 2017 and
without any specific exemption, will be compliant to
Service and repairs
Other than the serviceable items listed in this document, none
of the pump’s components can be serviced by the user. Only
personnel from ABB or its approved representative(s) is (are)
components formally approved by the manufacturer should be
used. Any attempt at repairing the pump in contravention of
these principles could cause damage to the pump and corporal
injury to the person carrying out the repair. It renders the
warranty null and void and could compromise the correct
compliance of the pump.
If you have any problems with installation, starting, or using the
pump please contact the company that sold it to you. If this is
not possible, or if the results of this approach are not
satisfactory, please contact the manufacturer’s Customer
Service
Potential safety hazards
operating the system:
• Electrical (line voltage)
4ENDURA AZ20, AZ25, AZ30 | PUMPED REFERENCE AIR UNIT | INF09/027-EN REV. F
2 Installation
Siting
Site the pump adjacent to the probe – see Figure 1 for
environmental requirements.
Figure 1 Environmental requirements
Mounting
Overall dimensions are shown in Figure 2.
1 Mount the pump on a flat secure surface using the 3
mounting lugs A.
Dimensions in mm (in)
Figure 2 Dimensions and mounting lug locations
Electrical safety
WARNING
• Isolate the incoming power supply before accessing the
• The pump is not fitted with a switch therefore a
conforming to local safety standards must be fitted to the
final installation. It must be fitted in close proximity to
the pump within easy reach of the operator and must be
• Electrical installation and earthing (grounding) must be in
accordance with relevant national and local standards.
• Use cable appropriate for the load currents: 3-core cable
rated 5A and 90 °C (194 °F) minimum, that conform to
either IEC 60227 or IEC 60245. The terminals accept cables
from 0.8 to 2.5 mm2 (18 to 14 AWG).
• The pump conforms to Installation Category II of IEC
61010.
• After installation, there must be no access to live parts,
for example, terminals.
• If the pump is used in a manner not specified by the
Company, the protection provided by the equipment may
be impaired.
• All equipment connected to the pump’s terminals
must comply with local safety standards (IEC 60950,
EN601010-1).
CAUTION
• Always route power cables and air lines separately.
•
• Maintain Environmental Protection at all times.
• Ensure the seal and mating surfaces are clean to maintain
environmental rating.
• Conduit connections must provide cable entry sealing.
• Ensure cable glands are tightened after wiring. Do not
overtighten the plastic cable glands to avoid destroying
their sealing properties. Initially, tighten finger-tight, then
a further ½ to ¾ turn using a suitable spanner or wrench.
•
• Inductive loads must be suppressed or clamped to limit
voltage swings.
IP66 (NEMA 4)
55 °C
(131 °F)
–20 °C
(–4 °F)
98
(3.9)
71
(2.8)
150
(5.9) R3.2 (0.1)
179 (7.0)
210 (8.3)
5
ENDURA AZ20, AZ25, AZ30 | PUMPED REFERENCE AIR UNIT | INF09/027-EN REV. F
Accessing the terminal block
Referring to Figure 3:
1 Loosen the 4 pump cover retaining screws A.
2 Remove the pump cover B.
3 Loosen cable gland Cto prepare for the incoming power
supply cable.
Figure 3 Accessing the terminal block
Electrical connections
Preparation
Referring to Figure 4:
1 Prepare the incoming power supply cable as follows:
a
wires A
b B
2 Pass the cable through cable gland C.
Making connections
steps 1 to 5. The mains power supply must be 115 or 230 V AC,
page 1).
1 Prepare the incoming power supply cable as follows:
a
wires A
b B
2 Pass the cable through cable gland C.
3 Connect the neutral (blue wire D
match the existing connection.
4 Connect the earth wire Eto the pump’s internal earth
connection.
5 Connect the live (brown) wire F
match the existing live connection.
WARNING
Ensure the live (brown) wire is protected with a 1.6 A
Type F fuse.
6 Refit the pump cover by reversing the procedure in
Accessing the terminal block.
Figure 4 Electrical Connections
6ENDURA AZ20, AZ25, AZ30 | PUMPED REFERENCE AIR UNIT | INF09/027-EN REV. F
…2 Installation
Reference air connections
CAUTION
It is important that air to the pump inlet is clean and dry.
Failure to observe this requirement causes damage to both
the pump and the probe.
Referring to Figure 5:
1 If necessary, connect a pipe to the pump (suction) inlet A
and ensure the other end of the pipe is located in a clean,
dry area.
2 Connect the pumped reference air outlet Bdirectly to the
reference air inlet on the probe – refer to individual probe
manuals for reference air connection details.
3 A flow restrictor Cin the pump outlet line ensures the
correct flow is delivered without further regulation from the
pump. Ensure the flow restrictor is in place to protect pump
components.
Figure 5 Pumped reference air unit inlet and outlet
Inlet (suction)
see step 1
Outlet
(delivery)
7
ENDURA AZ20, AZ25, AZ30 | PUMPED REFERENCE AIR UNIT | INF09/027-EN REV. F
3 Maintenance
Replacing the air filter
NOTICE
Isolate the pump from power and air supplies before
replacing the air filter.
1 Remove the pump cover – see Accessing the terminal block,
page 5.
Referring to Figure 6:
2 Disconnect tube Afrom air filter B.
3 Disconnect tube Cfrom air filter B.
4 Release clip Dand carefully remove air filter Bby pulling
it out of the clip.
5 Discard air filter B.
6 Fit a new filter by reversing steps 1 to 4.
Figure 6 Replacing the air filter
INF09/027-EN Rev. F 10.2019
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We reserve the right to make technical changes or modify the contents of this document
without prior notice. With regard to purchase orders, the agreed particulars shall prevail.
ABB does not accept any responsibility whatsoever for potential errors or possible lack of
information in this document.
We reserve all rights in this document and in the subject matter and illustrations contained
therein. Any reproduction, disclosure to third parties or utilization of its contents – in
whole or in parts – is forbidden without prior written consent of ABB.
© ABB 2019
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ABB Limited
Measurement & Analytics
Oldends Lane
Stonehouse
Gloucestershire
GL10 3TA
UK
Tel: +44 (0)1453 826661
Fax: +44 (0)1453 829671
Email: instrumen[email protected]om
ABB Inc.
Measurement & Analytics
125 E. County Line Road
Warminster
PA 18974
USA
Tel: +1 215 674 6000
Fax: +1 215 674 7183
www.abb.com/measurement
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