Endress+Hauser CYA251 Operating Manual
BA00495C/07/EN/03.18
71435025
2019-01-15
Products Solutions Services
Operating Instructions
CYA251
Flow assembly for nitrate/SAC, turbidity and
oxygen sensors
CYA251 Table of contents
Table of contents
1 About this document ........... 4
1.1 Warnings ........................... 4
1.2 Symbols used ........................ 4
1.3 Symbols used ........................ 5
2 Basic safety instructions ....... 6
2.1 Requirements for the personnel ........ 6
2.2 Designated use ...................... 6
2.3 Workplace safety .................... 6
2.4 Operational safety ................... 7
2.5 Product safety ....................... 7
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 ................ 10
5 Installation .................... 12
5.1 Installation conditions ............... 12
5.2 Mounting the assembly .............. 13
5.3 Mounting the sensor ................ 17
5.4 Post-installation check ............... 21
6 Commissioning ................ 21
7 Maintenance .................. 22
7.1 Maintenance tasks .................. 22
8 Repair .......................... 25
8.1 Spare parts ........................ 25
8.2 Return ............................ 25
8.3 Disposal ........................... 26
9 Accessories .................... 27
9.1 Device-specific accessories ............27
10 Technical data ................. 30
10.1 Environment ....................... 30
10.2 Process ............................ 30
10.3 Mechanical construction ............. 31
Index ................................. 33
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About this document CYA251
1 About this document
1.1 Warnings
Structure of information Meaning
DANGER
L
Causes (/consequences)
If necessary, Consequences of noncompliance (if applicable)
Corrective action
‣
WARNING
L
Causes (/consequences)
If necessary, Consequences of noncompliance (if applicable)
Corrective action
‣
CAUTION
L
Causes (/consequences)
If necessary, Consequences of noncompliance (if applicable)
Corrective action
‣
NOTICE
Cause/situation
If necessary, Consequences of noncompliance (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
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CYA251 About this document
1.3 Symbols used
1.3.1 Symbols on the device
Symbol Meaning
Reference to device documentation
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Basic safety instructions CYA251
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 assembly is designed exclusively for use in liquid media.
The CYA251 flow assembly is designed for the installation of nitrate/SAC, turbidity and
oxygen sensors, each with a diameter of 40 mm (1.57 in), in pipes and hoses.
Their mechanical construction means that they can be operated in pressurized systems (see
technical data).
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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CYA251 Product description
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
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.
3 Product description
3.1 Product design
3.1.1 Measuring system
A complete measuring system comprises:
• Flowfit CYA251 flow assembly
• Transmitter, e.g. Liquiline CM442
• 40 mm sensor, e.g. CUS50D
• Measuring cable
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Incoming acceptance and product identification CYA251
1 2
3
4
5
6
A0037719
1 Example of a measuring system
1 Process pipe
2 Liquiline CM442 transmitter
3 Measuring cable
4 Return line with shut-off valve
5 Flow assembly CYA251 with 40 mm sensor
6 Inlet with shut-off valve
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.
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Keep the damaged goods until the issue has been resolved.
CYA251 Incoming acceptance and product identification
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.
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Incoming acceptance and product identification CYA251
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 Identifying the product
Product page
www.endress.com/cya251
Interpreting the order code
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.
Manufacturer address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
4.2.3 Certificates and approvals
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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CYA251 Incoming acceptance and product identification
4.2.4 Scope of delivery
The delivery comprises:
• Flow assembly in the version ordered (including the selected sensor adapters and process
connections)
• Accessories ordered
• Adapter with check valve (for optional cleaning only, 6 mm (0.24 in) connection for
compressed air)
• 1 tube of lubricant (for O-rings)
• Operating Instructions
When the flow assembly is delivered, the cleaning port and cleaning connection are fitted
with dummy plugs.
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