Endress+Hauser CUA252 Operating Manual
BA01281C/07/EN/03.19
71440423
2019-03-01
Products Solutions Services
Operating Instructions
Flowfit CUA252
Flow assembly for CUS52D turbidity sensor
Flowfit CUA252 Table of contents
Table of contents
1 About this document ................ 4
1.1 Warnings ............................ 4
1.2 Symbols used .......................... 4
2 Basic safety instructions ............ 5
2.1 Requirements for the personnel ............ 5
2.2 Designated use ........................ 5
2.3 Workplace safety ....................... 5
2.4 Operational safety ...................... 6
2.5 Product safety ......................... 6
3 Product description ................. 7
3.1 Product design ......................... 7
4 Incoming acceptance and product
identification ....................... 8
4.1 Incoming acceptance .................... 8
4.2 Product identification .................... 8
4.3 Scope of delivery ....................... 9
4.4 Certificates and approvals ................ 9
5 Installation ....................... 10
5.1 Mounting conditions ................... 10
5.2 Mounting the flow assembly ............. 12
5.3 Mounting the sensor ................... 15
5.4 Post-installation check .................. 15
6 Commissioning .................... 16
7 Maintenance ...................... 17
7.1 Maintenance tasks ..................... 17
7.2 Cleaning agent ....................... 18
8 Repair ............................ 19
8.1 Spare parts .......................... 19
8.2 Return .............................. 19
8.3 Disposal ............................ 19
9 Accessories ....................... 20
10 Technical data .................... 22
10.1 Environment ......................... 22
10.2 Process ............................. 22
10.3 Mechanical construction ................ 23
Index .................................. 25
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About this document Flowfit CUA252
1 About this document
1.1 Warnings
Structure of information Meaning
DANGER
L
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
Corrective action
‣
WARNING
L
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
Corrective action
‣
CAUTION
L
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
Corrective action
‣
NOTICE
Cause/situation
If necessary, Consequences of
non-compliance (if applicable)
Action/note
‣
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious
injury.
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious
injury.
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
This symbol alerts you to situations which may result in damage to
property.
1.2 Symbols used
Symbol Meaning
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
1.2.1 Symbols on the device
Symbol Meaning
Reference to device documentation
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Flowfit CUA252 Basic safety instructions
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 Designated use
The CUA252 flow assembly is designed for the installation of the CUS52D turbidity sensor.
Its mechanical construction means that it can be operated in pressurized systems (see
technical data→ 22).
The main areas of application are:
• Final turbidity measurement in outlet of waterworks
• Turbidity measurement in inlet of waterworks
• Turbidity measurement at all process stages
• Turbidity measurement for filter monitoring and filter backwashing
• Turbidity measurement in drinking water networks
The assembly is designed exclusively for use in liquid media.
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.
2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations
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Basic safety instructions Flowfit CUA252
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
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
European standards have been observed.
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Flowfit CUA252 Product description
1
2
3
4
3 Product description
3.1 Product design
1 CUA252 flow assembly with locking clamp
1 Butterfly nut of locking clamp
2 Clamp seal
3 Locking clamp
4 Flow assembly CUA252
A0038827
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Incoming acceptance and product identification Flowfit CUA252
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
1. Verify that the packaging is undamaged.
Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
Compare the shipping documents with your order.
4. Pack the product for storage and transportation in such a way that it is protected
against impact and moisture.
The original packaging offers the best protection.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.
4.2 Product identification
4.2.1 Nameplate
The nameplate provides you with the following information on your device:
• Manufacturer identification
• Order code
• Extended order code
• Serial number
• Ambient and process conditions
• Safety information and warnings
Compare the information on the nameplate with the order.
‣
4.2.2 Product identification
The order code and serial number of your product can be found in the following locations:
• On the nameplate
• In the delivery papers
Obtaining information on the product
1. Go to www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.
4. Search.
The product structure is displayed in a popup window.
5. Click on the product image in the popup window.
A new window (Device Viewer) opens. All of the information relating to your
device is displayed in this window as well as the product documentation.
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Flowfit CUA252 Incoming acceptance and product identification
4.2.3 Manufacturer's address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
4.3 Scope of delivery
The scope of delivery comprises:
• 1 Flowfit CUA252 flow assembly, version as ordered
• 1 clamp seal and locking clamp
• 2 process connections, version as ordered
• 1 set of Operating Instructions
4.4 Certificates and approvals
DRGL- 2014/68/EU / PED- 2014/68/EU
The assembly has been manufactured according to good engineering practice as per Article
4, Paragraph 3 of the Pressure Equipment Directive 2014/68/EU and is therefore not
required to bear the CE label.
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