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A B B ME A SUR EMENT & A N A LY TIC S  |  INSTRUC TION  |  INS/A N A INST/0 07- EN R E V. B

Endura AZ40

Sensor assembly

Orifice and seals kit
Kit reference: AZ400 752

Measurement made easy

1  Introduction

This publication details replacement procedures for 

the following AZ40 orifice and seals kit (AZ400 752).

Before carrying out any procedures, see Section 3.

The following procedures must be carried out by a 

suitably-trained technician:

•  Cleaning/Replacing CO and O2 orifices:  

Sections 4, 5, 6 and 7 (pages 4, 4, 6 and 7)

•  Replacing sensor assembly gaskets:  

Sections 4, 5, 6 and 8 (pages 4, 4, 6 and 8)

•  Cleaning / Replacing sensor assembly aspirator: 

Sections 4, 5, 6 and 8.4 (pages 4, 4, 6 and 12)

•  Replacing sensor assembly flow disk:  

Sections 4, 5, 6 and 8.5 (pages 4, 4, 6 and 14)

Kit contains:

•  Orifices, gaskets, seals

•  This publication

Tools required

•  Transmitter door key (supplied with transmitter)

•  Operating instruction 

OI/AZ40-EN

*

•  3/16 in, 1/4 in, 5/32 in allen keys (wrenches)

•  7/8 in open-ended spanner (wrench)

•  10 in adjustable spanner (wrench)

•  Medium flat-bladed screwdriver

•  2 Small screwdrivers  

(1 × flat-bladed, 1 × crosshead)

•  Single-edged razor blade

•  Anti-seize compound  

(suitable for temperatures up to 200 °C [392 °F])

*Operating instruction 

OI/AZ40-EN

 contains 

mandatory safety information and can be downloaded 
from the link (above) or by scanning this code:

2  For more information

Further information is available from: 
 

www.abb.com/analytical

or by scanning these codes: 
 

Sales Service

Endura AZ40 
sensor assembly

Содержание Endura AZ40

Страница 1: ...nd 8 4 pages 4 4 6 and 12 Replacing sensor assembly flow disk Sections 4 5 6 and 8 5 pages 4 4 6 and 14 Kit contains Orifices gaskets seals This publication Tools required Transmitter door key supplie...

Страница 2: ...contain fibrous material that can be a health hazard if airborne The material predominantly aluminosilicate refractory fibres CAS 142844 00 6 Refractory ceramic fibres RCF are classified as Category 1...

Страница 3: ...sensor probe assembly must be mounted in accordance with the information supplied in Operating instruction OI AZ40 EN Suitable lifting equipment must be available when installing removing the sensor...

Страница 4: ...the sensor air and test gas supplies at the process Referring to Fig 5 2 1 Disconnect air line B and test gas line C at sensor D DANGER Serious damage to health risk to life The transmitter must be i...

Страница 5: ...embly B to mounting flange C Set items aside for re use 2 Carefully remove the sensor assembly and the attached probe including filter assembly from the process 3 Temporarily cover process opening unt...

Страница 6: ...s kit component locations Fig 6 1 Orifice and seals kit component locations on sensor assembly Key A CO orifice see Section 7 page 7 B O2 orifice see Section 7 page 7 C CO heater block gaskets see Sec...

Страница 7: ...a 1 4 in allen key wrench to secure CO orifice pipe plug A in place in the CO orifice chamber 9 Use a 5 32 in allen key wrench to secure O2 orifice D 1 notch in head in place in the O2 orifice chambe...

Страница 8: ...flat bladed screwdriver to unscrew 4 captive cover retaining screws A and remove cover B Retain cover for re use 2 Use a medium flat bladed screwdriver to unscrew 2 captive cover retaining screws C an...

Страница 9: ...crewdriver to depress the spring connector in each terminal and withdraw the wires from the terminal housing 3 Unscrew O2 sensor A from manifold block B using a 7 8 in spanner wrench and withdraw the...

Страница 10: ...th attached washer K 14 Re fit COe block insulation A in the reverse order of removal 15 Apply a light coating of an anti seize compound suitable for temperatures up to 200 C 392 F to sensor clamp pla...

Страница 11: ...Endura AZ40 Sensor assembly Orifice and seals kit INS ANAINST 007 EN Rev B 11 Fig 8 4 Replacing sensor assembly gaskets...

Страница 12: ...ted correctly 7 Fit the nozzle B into the aspirator A ensuring it is seated correctly 8 Apply a light coating of an anti seize compound suitable for temperatures up to 200 C 392 F to the threaded port...

Страница 13: ...Referring to Fig 8 6 If a recommended 2 stage filtration system A is fitted in the instrument air line replace the filters in accordance with manufacturers instructions Fig 8 5 Replacing Cleaning sen...

Страница 14: ...rner of the flow disk assembly J with the upper right hand corner Ensure screw holes are aligned correctly 11 Apply a light coating of anti seize compound suitable for temperatures up to 200 C 392 F t...

Страница 15: ...Endura AZ40 Sensor assembly Orifice and seals kit INS ANAINST 007 EN Rev B 15 Fig 8 7 Replacing sensor assembly flow disk...

Страница 16: ...ts 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...

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