Endress+Hauser Flowfit CYA27 User manual

Products Solutions Services
Operating Instructions
Flowfit CYA27
Modular flow assembly for multiparameter
measurements
BA02059C/07/EN/03.22-00
71559349
2022-03-31

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 the personnel ............ 5
2.2 Intended 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 ..................... 11
4.1 Incoming acceptance ................... 11
4.2 Product identification ................... 11
4.3 Scope of delivery ...................... 12
5 Mounting ......................... 13
5.1 Mounting requirements ................. 13
5.2 Mounting the assembly ................. 16
5.3 Mounting assembly in the process ......... 19
5.4 Connecting the flow switch, flow
measurement or status lighting (optional) ... 25
5.5 Installing sensor in assembly ............. 38
5.6 Connecting optional accessories ........... 40
5.7 Post-mounting check ................... 41
6 Commissioning .................... 42
6.1 Function check ....................... 42
6.2 Switching on the device ................. 42
7 Operation ......................... 44
7.1 Adapting the measuring device to the process
conditions ........................... 44
7.2 Sampling ............................ 45
8 Diagnostics and troubleshooting ... 47
8.1 General troubleshooting ................. 47
8.2 Faults in the assembly and process
integration .......................... 47
9 Maintenance ...................... 48
9.1 Maintenance schedule .................. 48
9.2 Maintenance tasks ..................... 49
9.3 Disassembly (e.g. for modification or
cleaning) ............................ 54
10 Repair ............................ 56
10.1 Spare parts .......................... 56
10.2 Return .............................. 57
10.3 Disposal ............................ 57
11 Accessories ....................... 58
11.1 Device-specific accessories ............... 58
12 Technical data .................... 60
12.1 Power supply ......................... 60
12.2 Performance characteristics .............. 60
12.3 Environment ......................... 60
12.4 Process ............................. 61
12.5 Mechanical construction ................ 62
Index .................................. 64

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
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
Reference to device documentation
Flow direction

Flowfit CYA27 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 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 (4.72 in) 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 a 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, type
and position of sensor slots.
For additional functions, the assembly can be fitted with optional accessories, e.g.:
• Status lighting to indicate the operating status
• Flow switch for monitoring the flow
• Flowmeter for flow measurement
• Sampling valve for direct sampling at the assembly
• Particle filter for particle reduction
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8
10
1
2
3
4
5
6
9
12
11
13
14
A0043472
1 Process adapter inlet (female thread G 1/4") and hose connection (optional)
2 Inlet module
3 Module for holding a disinfection sensor with 25 mm (0.98 in) diameter
4 Disinfection sensor CCS5xD , e.g. CCS51D (not included in the scope of delivery)
5 Module for holding a sensor with Pg 13.5 connection, e.g. a pH sensor
6 pH sensor, e.g. CPS31E (not included in the scope of delivery)
7 Module for holding the conductivity sensor CLS82E with Pg 13.5 connection
8 Conductivity sensor CLS82E (not included in the scope of delivery)
9 Flow module
10 Flow switch or flowmeter (optional)
11 Outlet module
12 Process adapter outlet (female thread G 1/4") and hose connection (optional)
13 Status lighting (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 (0.98 in) sensors
• Sensor secured via pressure screw M35x2
• Sensors: →  58
• Flow versions
• 5 l/h (1.1 gal/h)
• 30 l/h (6.6 gal/h)
• Flow-dependent module whose design varies depending on the selected
flow version
• 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 (0.47 in) sensors in 120 mm (4.72 in) length
• Sensor installation via Pg 13.5 thread
• Sensors: →  58
• Flow-independent module that can be combined with both flow versions
A0043431
Flow module
• Qualitative display and control of the flow
• Flow must come from below
• Flow versions
• 5 l/h (1.1 gal/h)
• 30 l/h (6.6 gal/h)
• Flow-dependent module whose design varies depending on the selected
flow version
• Optional function
• Approved flow switch, see accompanying documentation
• Status lighting
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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A0047941
Flow module for continuous flow measurement
• Qualitative control and quantitative measurement of the flow volume
• Medium flows crosswise from above
• Flow versions
• 5 l/h (1.1 gal/h)
• 30 l/h (6.6 gal/h)
• Flow-dependent module whose design varies depending on the selected
flow version
• Optional function
Status lighting
The flow module, if used, must be the last module upstream from the
outlet module in order to guarantee flow through all modules.
A0043432
Module for the conductivity sensor CLS82E
• Medium flows to sensor from below
• Adapter for sensor CLS82E (12 mm (0.47 in) sensor with Pg 13.5 thread in
120 mm (4.72 in) length)
• Optional function: sampling valve (not shown here)
• Flow-dependent module whose design varies depending on the selected
flow version
A0043430
Dosing module
• Connection for supplying a liquid for pH adjustment (acidification) 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 is not included in the scope of
delivery)
• Medium flows through module from above
• Flow-independent module that can be combined with both flow versions
The dosing module, if used, should be the first module downstream
from the inlet module. An exception to this is a measurement which
could be falsified by the type of liquid added, e.g. a conductivity
measurement. In this case, the dosing module should be installed as the
second module →  22.
A0043894
Inlet module
• With needle valve (inlet valve)
• Connection G 1/4'' (ISO 228-1)
• Medium flows crosswise from below
• Drill hole for mounting (→  16)

Product description Flowfit CYA27
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A0043895
Outlet module
• With needle valve (outlet valve)
• Connection G 1/4'' (ISO 228-1)
• Medium flows crosswise from above
• Drill hole for mounting (→  16)
A0047942
Module for particle removal (only available through the replacement and
retrofitting module structure XPC0014)
• Flow-independent module that can be combined with both flow versions
• With needle valve in the top section (clear water)
• With G 1/4'' connection (ISO 228-1) in the bottom section (particle
discharge)
• Central flow direction (channel seal)
If used, the particle separator module should be the first module
downstream from the inlet module →  23.