Endress+Hauser Flowfit CYA27 User manual

Products Solutions Services
Operating Instructions
Flowfit CYA27
Modular flow assembly for multiparameter
measurements
BA02059C/07/EN/02.21
71511599
2021-01-07

Flowfit CYA27 Table of contents
Endress+Hauser 3
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 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 ..................... 10
4.1 Incoming acceptance ................... 10
4.2 Product identification ................... 10
4.3 Scope of delivery ...................... 11
4.4 Certificates and approvals ............... 11
5 Installation ....................... 12
5.1 Installation conditions .................. 12
5.2 Mounting the assembly ................. 15
5.3 Mounting assembly in the process ......... 18
5.4 Flow switch and status indication light
(optional) ........................... 22
5.5 Installing sensor in assembly ............. 25
5.6 Connecting optional accessories ........... 27
5.7 Post-installation check .................. 27
6 Commissioning .................... 28
6.1 Function check ....................... 28
6.2 Switching on the device ................. 28
7 Operation ......................... 29
7.1 Adapting the measuring device to the process
conditions ........................... 29
7.2 Sampling ............................ 30
8 Diagnostics and troubleshooting ... 32
8.1 General troubleshooting ................. 32
8.2 Faults in the assembly and process
integration .......................... 32
9 Maintenance ...................... 33
9.1 Maintenance schedule .................. 33
9.2 Maintenance tasks ..................... 34
9.3 Disassembly (for conversion, cleaning etc.) ... 39
10 Repair ............................ 41
10.1 Spare parts .......................... 41
10.2 Return .............................. 42
10.3 Disposal ............................ 42
11 Accessories ....................... 43
11.1 Device-specific accessories ............... 43
12 Technical data .................... 45
12.1 Power supply ......................... 45
12.2 Performance characteristics .............. 45
12.3 Environment ......................... 45
12.4 Process ............................. 46
12.5 Mechanical construction ................ 47
Index .................................. 48

About this document Flowfit CYA27
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
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
Flow direction

Flowfit CYA27 Basic safety instructions
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2 Basic safety instructions
2.1 Requirements for 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 specially designed to hold sensors. This includes in particular membrane-
covered disinfection sensors, e.g. Memosens CCS51D and 12 mm sensors with Pg 13.5
thread adapters and 120 mm installation length, such as pH or ORP sensors, oxygen
sensors and conductivity sensors. Thanks to its design, it can be operated in pressurized
systems.
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

Basic safety instructions Flowfit CYA27
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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.

Flowfit CYA27 Product description
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3 Product description
3.1 Product design
The Flowfit CYA27 is a modular assembly designed for operating sensors for liquid
analysis with continuous flow of medium. The sensors are placed in specially adapted
modules. Due to its modular design, the assembly is flexible in terms of the number and
type of sensor slots.
For additional functions, the assembly can be fitted with optional accessories, e.g.:
• Status indication light to indicate the operating status
• Flow switch for monitoring the flow
• Sampling valve for direct sampling at the assembly.
7
8
10
1
2
3
4
5
6
9
12
11
13
14
A0043472
1 Process adapter inlet (internal thread G 1/4") and hose connection (optional)
2 Inlet module
3 Module for holding a disinfection sensor with 25 mm diameter
4 Disinfection sensor CCS5xD, e.g. CCS51D (not included in scope of delivery)
5 Module for holding a sensor with Pg 13.5 connection, e.g. a pH sensor
6 pH sensor, e.g. CPS31D (not included in scope of delivery)
7 Module for holding the conductivity sensor CLS82D with Pg 13.5 connection
8 Conductivity sensor, e.g. CLS82D (not included in scope of delivery)
9 Flow module
10 Flow switch (optional)
11 Outlet module
12 Process adapter outlet (internal thread G 1/4") and hose connection (optional)
13 Status indication light (optional)
14 Sampling valve (optional)

Product description Flowfit CYA27
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A0043433
Module for disinfection sensors
• Medium flows to sensor from below
• Sensor slot for 25 mm sensors
• Sensor secured via pressure screw M35x2
• Sensors: CCS5x(D)
• Flow options
• 5 l/h (1.1 gal/h)
• 30 l/h (6.6 gal/h)
• Optional function: sampling valve (see diagram)
A0043434
Module for pH, ORP or oxygen sensors
• Medium flows to sensor from above
• Sensor slot for 12 mm sensors in 120 mm length
• Sensor installation via Pg 13.5 thread
• Sensors: →  43
A0043431
Flow module
• Flow display/monitoring
• Flow must come from below
• Flow options
• 5 l/h (1.1 gal/h)
• 30 l/h (6.6 gal/h) (identified by a blue distancing ring)
• Optional functions
• Flow switch
• Status indication light
The flow module, if used, must be the last module upstream from the
outlet module in order to guarantee flow through all modules.

Flowfit CYA27 Product description
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A0043432
Module for conductivity sensor CLS82D
• Medium flows to sensor from below
• Adapter for sensor CLS82D (12 mm sensor with Pg 13.5 thread in 120 mm
length)
• Optional function: sampling valve (not shown here)
A0043430
Dosing module
• Connection for supplying a liquid for acidification (pH reduction) or
cleaning purposes
• Connection: hose nipple 3 mm (0.12 in) on dosing plug Pg 13.5
suitable for hoses with internal diameter (ID) 1.6 mm (0.06 in), outer
diameter (OD) 4.8 mm (0.19 in) (hose and hose clip not included in scope
of delivery)
• Medium flows through module from above
The dosing module, if used, should be the first module downstream
from the inlet module. An exception to this is conductivity
measurement, which could be falsified by the type of liquid added. In
this case, the dosing module should be installed as the second module
downstream from the conductivity measurement.
A0043894
Inlet module
• with needle valve (inlet valve)
• Connection G 1/4'' (ISO 228-1)
• Flow of medium from below
• Drill hole for mounting(→  15)
A0043895
Outlet module
• with needle valve (outlet valve)
• Connection G 1/4'' (ISO 228-1)
• Flow of medium from above
• Drill hole for mounting(→  15)

Incoming acceptance and product identification Flowfit CYA27
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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
• flow
• Safety information and warnings
‣Compare the information on the nameplate with the order.
4.2.2 Product identification
Product page
www.endress.com/cya27
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.