Endress+Hauser Cleanfit CPA871 User manual

Products Solutions Services
Operating Instructions
Cleanfit CPA871
Flexible retractable process assembly for water,
wastewater, chemical industry and heavy industry
BA01323C/07/EN/06.22-00
71563008
2022-03-04

Cleanfit CPA871 Table of contents
Endress+Hauser 3
Table of contents
1 About this document ........... 4
1.1 Warnings ........................... 4
1.2 Symbols used ........................ 4
1.3 Symbols on the device ................ 4
2 Basic safety instructions ....... 5
2.1 Requirements for the personnel ........ 5
2.2 Intended use ........................ 5
2.3 Workplace safety .................... 6
2.4 Operational safety ................... 7
2.5 Product safety ....................... 7
3 Product description ............. 8
3.1 Product design ....................... 8
4 Incoming acceptance and
product identification ......... 11
4.1 Incoming acceptance ................ 11
4.2 Scope of delivery .................... 11
4.3 Product identification ................ 12
5 Mounting ...................... 12
5.1 Mounting requirements .............. 12
5.2 Mounting the assembly .............. 21
5.3 Post-mounting check ................ 43
6 Commissioning ................ 43
6.1 Preliminaries ....................... 43
7 Operation ...................... 44
7.1 Adapting the assembly to the process
conditions ......................... 44
8 Maintenance .................. 48
8.1 Maintenance schedule ............... 48
8.2 Maintenance tasks .................. 49
9 Repair .......................... 70
9.1 General notes ...................... 70
9.2 Spare parts ........................ 70
9.3 Return ............................ 70
9.4 Disposal ........................... 71
10 Accessories .................... 72
10.1 Device-specific accessories ............ 73
10.2 Service-specific accessories ........... 78
10.3 Installation material for rinse
connections ........................ 80
11 Technical data ................. 80
11.1 Mounting .......................... 80
11.2 Environment ....................... 81
11.3 Process ............................ 81
11.4 Mechanical construction ............. 87
Index ................................. 88

About this document Cleanfit CPA871
4 Endress+Hauser
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of non-
compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to property.
1.2 Symbols used
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
 Result of a step
1.3 Symbols on the device
Reference to device documentation
Do not dispose of products bearing this marking as unsorted municipal waste. Instead, return them to the
manufacturer for disposal under the applicable conditions.

Cleanfit CPA871 Basic safety instructions
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2 Basic safety instructions
2.1 Requirements for the personnel
• Installation, commissioning, operation and maintenance of the measuring system may be
carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the specified
activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions and
must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Intended use
The Cleanfit CPA871 retractable assembly, which can be manually or pneumatically operated,
is designed for the installation of sensors in vessels and pipes.
Thanks to its design, it can be operated in pressurized systems (→  80).
Use of the device for any purpose other than that described, poses a threat to the safety of
people and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
2.2.1 Use in explosion-proof areas
As a manufacturer of products used for analysis, we declare that the product supplied has
undergone an ignition risk assessment and may be used in hazardous atmospheres once the
following conditions for safe usage have been met:
• The protective ring is labeled as follows: "CAUTION, DANGER DUE TO ELECTROSTATIC
CHARGES, CLEAN USING ONLY AN ANTISTATIC CLOTH". This instruction must be
observed.
• Assemblies comprising wetted parts made of non-conductive material, must not be used in
potentially explosive atmospheres.
• The compressed air supply, sensors and limit position switches must comply with the
applicable guidelines and standards for use in hazardous atmospheres, be labeled with the
degree of protection and meet the requirements of the relevant range of application. The
ambient temperatures must be observed. The limit position switch used in the product
complies with this requirement.
• Ensure that the compressed air does not contain a potentially explosive atmosphere.
• Please ensure that movements associated with the retraction and insertion of the sensor do
not damage the connection.
• The product must be incorporated into the local potential equalization system.
• The Operating Instructions for the product and in particular the conditions for safe usage
must be read, understood and implemented.
The product does not need to be labeled with the degree of protection.

Basic safety instructions Cleanfit CPA871
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2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations

Cleanfit CPA871 Basic safety instructions
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2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.
During operation:
‣If faults cannot be rectified:
products must be taken out of service and protected against unintentional operation.
2.5 Product safety
2.5.1 State-of-the-art technology
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
international standards have been observed.

Product description Cleanfit CPA871
8 Endress+Hauser
3 Product description
3.1 Product design
1
2
3
4
5
6
7
8
A0029614
 1 Assembly with pneumatic drive (without protective cover)
1Rinse connection (outlet)
2 Automatic limit position
lock, process
3 Connection for limit
position switch
4 Automatic limit position
lock, service
5 Fastening ring for
protective cover
6 Pneumatic connection
(move to measuring
position)
7 Pneumatic connection
(move to service position)
8 Rinse connection (inlet)

Cleanfit CPA871 Product description
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3.1.1 Operating principle
1
23
4
5
6
7
A0039361
 2 Sealing system, assembly in service position
1 Rinse chamber, inlet
2 Seal, drive (1 x O-ring)
3 Leakage hole
4 Rinse chamber, outlet
5 Seal, rinse chamber (1 x O-ring)
6 Process seal (2 x O-ring)
7 Rinse chamber
The assembly is open to the process during insertion/retraction; the rinse connections must
either be pipe-fitted or sealed.
The assembly has a pin seal. This seals the assembly from the process in the relevant limit
position.

Product description Cleanfit CPA871
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Process seal
1
2
A0039106
 3 Process seal, assembly in service position
1 Process seal (2 x O-ring)
2 Pin