Endress+Hauser Cleanfit CPA450 A Series User manual

Products Solutions Services
Operating Instructions
Cleanfit CPA450
Retractable assembly for 12mm sensors for pH/ORP and
oxygen measurement
BA00183C/07/EN/14.18
71439248
2018-10-31

Cleanfit CPA450 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 Designated use ........................ 5
2.3 Occupational safety ..................... 5
2.4 Operational safety ...................... 6
2.5 Product safety ......................... 6
3 Incoming acceptance and product
identification ....................... 7
3.1 Incoming acceptance .................... 7
3.2 Product identification .................... 8
3.3 Scope of delivery ....................... 8
3.4 Certificates and approvals ................ 9
4 Installation ....................... 10
4.1 Mounting conditions ................... 10
4.2 Installation .......................... 13
4.3 Post-installation check .................. 18
5 Operation options ................. 19
5.1 Initial commissioning ................... 19
5.2 Operating elements .................... 19
5.3 Operating the assembly ................. 20
6 Maintenance ...................... 22
6.1 Cleaning the assembly .................. 22
6.2 Cleaning agent ....................... 23
6.3 Replacing seals ....................... 24
7 Repair ............................ 27
7.1 Spare parts .......................... 28
7.2 Return .............................. 31
7.3 Disposal ............................ 31
8 Accessories ....................... 32
8.1 Accessory kits ........................ 32
8.2 Welding socket ....................... 32
8.3 Safety kit ............................ 32
8.4 Sensors ............................. 33
8.5 Connection accessories .................. 34
9 Technical data .................... 36
9.1 Environment ......................... 36
9.2 Process ............................. 36
9.3 Mechanical construction ................ 37
Index .................................. 38

About this document Cleanfit CPA450
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
1.3 Symbols on the device
Symbol Meaning
Reference to device documentation

Cleanfit CPA450 Basic safety instructions
Endress+Hauser 5
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 manually operated Cleanfit CPA450 retractable assembly is designed for the
installation of pH, ORP and oxygen sensors in vessels and pipelines.
Thanks to its design, it can be used in pressurized systems →  36.
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 Occupational safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations

Basic safety instructions Cleanfit CPA450
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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
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.

Cleanfit CPA450 Incoming acceptance and product identification
Endress+Hauser 7
3 Incoming acceptance and product
identification
3.1 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.

Incoming acceptance and product identification Cleanfit CPA450
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3.2 Product identification
3.2.1 Nameplate
The nameplate provides you with the following information on your device:
• Order code
• Serial number
• Permitted pressure
• Permitted temperature
‣Compare the information on the nameplate with the order.
3.2.2 Product identification
Product page
www.endress.com/cpa450
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.
3.2.3 Manufacturer's address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
3.3 Scope of delivery
The scope of delivery comprises:
• Assembly in the version ordered
• PAL mounting kit
• Hook wrench
• Operating Instructions

Cleanfit CPA450 Incoming acceptance and product identification
Endress+Hauser 9
3.4 Certificates and approvals
3.4.1 CE/PED
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.

Installation Cleanfit CPA450
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4 Installation
4.1 Mounting conditions
4.1.1 Dimensions and process connections
Ø 27 (1.06)
135 (5.31)
46
(1.81)
M23 + 1.5
Ø 21.2 (0.83)
Ø 25 (0.98)
Z
X
Y
Z
X
Y
X
Y
89
(3.5)
89
X
X
X
(3.5)
Y
Z
Y
Z
Y
Z
A B
CD E
F, G
A0037726
 1 Dimensions (see the following table). Engineering unit in mm (inch)
F 130 mm (5.12 in) (flange DN32)
G 140 mm (5.51 in) (flange ANSI 1¼")

Cleanfit CPA450 Installation
Endress+Hauser 11
Type Assembly Immersion depth
mm (inch)
X
Adapter
Y
mm (inch)
Z
mm (inch)
A CPA450-*A*** 100 (3.94)
250 (9.84)
700 (27.5)
G1½ internal 558 (21.97)
708 (27.87)
1158 (45.59)
275 (10.83)
425 (16.7)
875 (34.5)
B CPA450-*B*** 100 (3.94)
250 (9.84)
700 (27.5)
G1¼ external 558 (21.97)
708 (27.87)
1158 (45.59)
220 (9.06)
370 (14.9)
820 (32.6)
B CPA450-*C*** 100 (3.94)
250 (9.84)
700 (27.5)
NPT 1¼" external 558 (21.97)
708 (27.87)
1158 (45.59)
220 (9.06)
370 (14.9)
820 (32.6)
C CPA450-*D*** 100 (3.94)
250 (9.84)
700 (27.5)
Flange DN32(as per DIN EN
1092-1)
558 (21.97)
708 (27.87)
1158 (45.59)
225 (8.86)
375 (14.76)
825 (32.48)
C CPA450-*E*** 100 (3.94)
250 (9.84)
700 (27.5)
Flange ANSI 1¼" (as per ASME
B16.5)
558 (21.97)
708 (27.87)
1158 (45.59)
225 (8.86)
375 (14.76)
825 (32.48)
D CPA450-*F*** 100 (3.94)
250 (9.84)
700 (27.5)
G1¼ internal 558 (21.97)
708 (27.87)
1158 (45.59)
130 (5.12)
280 (11.2)
730 (28.7)
D CPA450-*H*** 100 (3.94)
250 (9.84)
700 (27.5)
NPT 1¼" external 558 (21.97)
708 (27.87)
1158 (45.59)
130 (5.12)
280 (11.2)
730 (28.7)
E CPA450-*I*** 100 (3.94)
250 (9.84)
700 (27.5)
Flange DN32 (as per DIN EN
1092-1)
558 (21.97)
708 (27.87)
1158 (45.59)
92 (3.62)
242 (9.53)
792 (31.18)
E CPA450-*K*** 100 (3.94)
250 (9.84)
700 (27.5)
Flange ANSI 1¼" (as per ASME
B16.5)
558 (21.97)
708 (27.87)
1158 (45.59)
82 (3.23)
232 (9.13)
782 (30.79)
B CPA450-*M***
and
CPA450-*Q***
100 (3.94)
250 (9.84)
700 (27.5)
M-NPT 1½ external 558 (21.97)
708 (27.87)
1158 (45.59)
220 (8.66)
370 (14.57)
820 (32.28)
C CPA450-*N***
and
CPA450-*R***
100 (3.94)
250 (9.84)
700 (27.5)
Flange ANSI 2" (as per ASME B16.5) 558 (21.97)
708 (27.87)
1158 (45.59)
225 (8.86)
375 (14.76)
825 (32.48)
4.1.2 Mounting instructions
Suitable sensors
The following sensors are suitable for installation in the assembly:
• Digital sensors with Memosens technology, length 120 mm (4.72")
• pH/ORP glass electrodes, length 120 mm (4.72")
• ISFET sensors: Only the ISFET sensors specified in the "Accessories" section can be
installed.
• Oxygen sensors, length 120 mm (4.72")
Orientation
The permitted orientation of the assembly depends on the sensor used:
• Digital sensors with Memosens technology, pH/ORP glass electrodes:
Install the assembly at an angle of at least 15° to the horizontal →  2,  12.
• ISFET sensors:
For ISFET sensors, there are basically no restrictions regarding orientation. The
installation angle should be from 0 to 180°.
• All other sensors:
Pay attention to the information in the relevant TI.

Installation Cleanfit CPA450
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15° 15°
A B
A0011679
 2 Orientations
A Glass sensors: 15 ° to the horizontal
B ISFET sensors: 0 to 180° recommended
Insert the immersion assembly into the vessel or pipe to a depth that will ensure that
medium continuously washes around the electrode, even at the minimum level.
Installing with a ball valve
To replace the sensor without interrupting the process, a ball valve is required. Depending
on the version, the ball valve forms part of the assembly or must be installed by the
customer.
LCAUTION
There is a risk of injury if used without a ball valve. due to the risk of medium
escaping.
‣If used without a ball valve, the process must be stopped prior to dismantling the
immersion tube or replacing the sensor.
A0010209
 3 Measuring mode (ball valve is open):
assembly is retracted
A
A0010210
 4 Service position (ball valve is closed): assembly is
extended for electrode replacement, calibration,
rinsing
A Top edge of adapter
Depending on the assembly version, a mounting clearance of at least 700 or 1150
mm (27.6" or 45.3") is required from the top edge of the adapter.

Cleanfit CPA450 Installation
Endress+Hauser 13
4.2 Installation
LWARNING
If process medium and cleaning medium escape, there is a risk of injury due to high
pressure, high temperatures or chemicals.
‣Wear protective gloves, protective goggles and protective clothing.
‣Mount the assembly only if vessels or pipes are empty and unpressurized.
‣Before exposing the assembly to the process pressure, verify that all connections are
sealed.
4.2.1 Measuring system
A complete measuring system comprises:
• Assembly Cleanfit CPA450
• Oxygen/pH/ORP electrode, length 120 mm (4.72"), e.g. Orbisint CPS11D
• Transmitter, e.g. Liquiline CM44x or Liquiline CM42
• measuring cable, e.g. CYK10
Optional:
• Junction box M12 socket/cable or cable/cable→  32
• Extension cable CYK11
1
2
3
A0038005
 5 Measuring system with CPA450
1 Transmitter Liquiline CM44x
2 Measuring cable CYK10
3 Assembly Cleanfit CPA450
4.2.2 Required tools
The following tools are required for installing the assembly in the process and for
installing the sensor:
• Allen key M5 (5 mm)
• Hook wrench AF 55 (included in scope of delivery)
• Combination wrench AF 20 (20 mm (0.79")) or adjustable open-ended wrench
• Adjustable open-ended wrench (up to 45 mm (1.8"))
• Open-ended wrench set (only for flange connection)

Installation Cleanfit CPA450
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4.2.3 Installing the safety kit
At pressures over 4 bar (58 psi) the use of a safety kit is strongly recommended.
LDANGER
Non-compliance with the safety instructions can lead to injury or death.
‣The safety instructions must be read and followed.
‣Install the safety equipment only if the assembly has been removed.
The safety equipment is not a substitute for the standard retainer of the assembly.
A0014680
 6 Assembly with safety kit
Preparation
1
2
3
4
5
6
7
8
9
10
11
12
13
A0014681
 7 Installing the safety kit
1 Service chamber 8 Setting collar

Cleanfit CPA450 Installation
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2 Safety kit (lower part) 9 Safety kit (upper part with handle)
3 Sensor holder with protection guard 10 Cable protector
4 Locking ring (metal) 11 Handle on immersion tube
5 Coupling nut (black) 12 Safety kit (upper part with handle and locking pin)
6 Safety kit (compression spring) 13 Ball valve with handle
7 Immersion tube
1. Move the assembly to the measuring position, and mark the immersion tube approx.
20 mm (0.8") above the coupling nut (black) (item 5).
 This is where the upper part of the safety kit (item 9) will be installed.
2. Use the hook wrench to open the coupling nut (black) by ¼ to ½ turn.
3. Pull the immersion tube out as far as the stop (service position).
4. Screw on the locking ring (item 4), and disconnect the assembly from the service
chamber (item 1).
Installing the safety kit
1. Remove the cable protector (item 10).
2. Unscrew the sensor holder (item 3).
3. Unscrew the immersion tube handle (item 11).
4. Remove the setting collar (item 8).
5. Slide the compression spring (item 6) onto the immersion tube.
6. Screw on both of the upper parts of the safety kit (items 9 and 10) at the marked
position. Tighten both screws with a torque of 3.5 Nm (2.6 lbf ft).
7. Install the setting collar.
8. Screw the sensor holder onto the immersion tube.
9. Mount the lower part of the safety kit (item 2) on the service chamber.
The side with the chamfered edge points towards the ball valve. Secure the lower part
with a torque of 3.5 Nm (2.6 lbf ft).
10. Assemble the assembly.

Installation Cleanfit CPA450
16 Endress+Hauser
4.2.4 Installing the assembly in the process
In the case of versions with a pre-installed safety kit, it is still necessary to finalize the
position of the safety kit →  14.
1. Move the assembly to the service position.
2. Secure the assembly to the vessel or piping using the process connection.
12
11
10
9
8
7
1
2
3
6
5
4
A0010207
 8 Assembly in operational state (ball valve open)
1 Setting collar for setting the immersion depth
2 Bore hole for hook wrench
3 Rinse connection G¼ (316L) NPT ¼" (Alloy C22 or
titanium)
4 Service chamber
5 Safety kit
6 Sensor holder with protection guard
7 Immersion tube
8 Lever for opening/closing the ball valve
9 Locking ring (metal)
10 Coupling nut (black)
11 Allen screw M5 / AF4
12 Cable protector/cable gland
4.2.5 Rinse water connection (optional)
NOTICE
Operating the service chamber with water pressures above 6 bar (87 psi) will damage
the assembly.
‣At water pressures above 6 bar (87 psi), including short pressure surges, install a
pressure-reducing valve upstream.
1. Connect the rinse water line to the rinsing nozzle provided. The three rinsing nozzles
at the assembly are identical (G¼ for 316L material - NPT ¼" for Alloy C22 and
titanium).
2. Operate the rinse water connection of the assembly with a water pressure from 2 bar
to max. 6 bar (29 to 87 psi).
In addition to water, other or additional cleaning solutions can be used as rinse
liquids. The specifications regarding the material resistance of the assembly and the
permitted temperatures or pressures must be complied with.
You can also connect a drain valve or a manometer. These are available along with
other accessories.

Cleanfit CPA450 Installation
Endress+Hauser 17
4.2.6 Sensor installation
LWARNING
Risk of injury from high pressure, high temperature or chemical hazards if process
medium escapes.
‣Wear protective gloves, protective goggles and protective clothing.
‣Clean or rinse the rinse chamber.
‣Mount the assembly only if vessels or pipes are empty and unpressurized.
‣Before subjecting the assembly to the process pressure, verify that all connections are
sealed.
13
1
12
11
10
14
15
4
6
9
5
3
2
7
8
A0010212
 9 Cable entry and sensor installation

Installation Cleanfit CPA450
18 Endress+Hauser
LCAUTION
The immersion tube may move suddenly and cause injuries.
‣Hold the immersion tube with one hand.
Preparing the assembly
1. Use the hook wrench to carefully open the coupling nut (black) (item 14) by ¼ to ½
turn.
2. Release the cable protector (item 1).
3. Pull the immersion tube (item 2) out as far as it will go.
4. Close the ball valve (item. 9).
Guiding the cable through and installing the sensor
1. Screw on the locking ring (metal) (item 13) using the hook wrench.
2. Remove the assembly from the ball valve.
3. Unscrew the sensor holder with integrated protection guard (item 11).
4. Guide the measuring cable (item 12) from below through the pipe to the transmitter
connection.
5. If necessary, attach the PAL contact spring (item 4) to the contact cable (item 5).
6. Secure the spring with two cable ties.
7. Screw the sensor (item 6) into the sensor holder (item 11).
8. Attach the cable connector (item 3) to the sensor (item 6).
9. Ensure that the O-ring (item 7) is installed at the end of the thread.
10. Insert the sensor holder (item 11) into the immersion tube as far as it will go, and
screw it tight by hand.
11. Reattach the cable protector.
Assembling the assembly
1. Re-install the assembly on the ball valve (item 10).
2. Screw on the locking ring (metal) (item 13), and tighten with the hook wrench.
3. Ensure that the coupling nut (black) (item 14) is opened only by a ½ turn.
4. Position the setting collar (item 15) at the desired immersion depth, and secure with
an Allen key.
5. Open the ball valve (item 9).
6. Insert the immersion tube as far as the stop on the setting collar (item 15).
7. Tighten the coupling nut (black) (item 14) using the hook wrench.
8. Secure the coupling nut (black) by an additional 1/8 turn (45°, corresponds to 10 to
15 Nm (7 to 11 lbf ft)).
4.3 Post-installation check
1. After mounting, check all the connections to ensure they are secure and leak-tight.
2. Ensure that the hose of the (optional) rinse water connections cannot be removed
without force. This pipe is in open contact with the medium and must be secured
accordingly.
3. Check the hoses for damage.

Cleanfit CPA450 Operation options
Endress+Hauser 19
5 Operation options
5.1 Initial commissioning
Prior to commissioning, ensure that:
• all seals are correctly seated (on the assembly and on the process connection)
• the sensor is correctly installed and connected
• the water connection at the rinse connections is correct (if present).
LWARNING
Risk of injury from high pressure, high temperature or chemical hazards if process
medium escapes.
‣Wear protective gloves, protective goggles and protective clothing.
‣Mount the assembly only if vessels or pipes are empty and unpressurized.
‣Before subjecting the assembly to the process pressure, verify that all connections are
sealed.
5.2 Operating elements
12
11
10
9
8
7
1
2
3
6
5
4
A0010207
 10 Operating elements
1 Setting collar for setting the immersion depth
2 Bore hole for hook wrench
3 Rinse connection G¼ (316L) NPT ¼" (Alloy C22 or
titanium)
4 Service chamber
5 Safety kit
6 Sensor holder with protection guard
7 Immersion tube
8 Lever for opening/closing the ball valve
9 Locking ring (metal)
10 Coupling nut (black)
11 Allen screw M5
12 Cable protector
The following operating options are available:
• Setting collar (item 1)
For setting the desired immersion depth of the assembly. Alternatively, the safety kit
can be used.
• Coupling nut (black) (item 10).
For locking the assembly in the desired position.
• Locking ring (metal) (item 9)
For securing the assembly on the ball valve.

Operation options Cleanfit CPA450
20 Endress+Hauser
• Lever (item 8)
For opening or closing the ball valve.
• Immersion tube (item 7)
The desired orientation of the sensor is configured by turning the immersion tube.
• Stop/sensor holder (item 6)
When moving the assembly to the service position, pull the immersion tube out as far as
this stop.
5.3 Operating the assembly
NOTICE
Injuries due to the presence of process medium in the service chamber
‣Clean the service chamber and drain off medium.
While it is moving, the process pressure must not exceed 4 bar (58 psi). If the
assembly is secured by means of the safety kit, the pressure may be increased.
Moving from the service position to the measuring position
1. Open the coupling nut (black) using the hook wrench.
2. Open the ball valve.
3. Push the immersion tube pipe in the direction of the process as far as the stop.
4. Secure the coupling nut (black) on the immersion tube until it is hand-tight. To do so,
use the hook wrench and secure the coupling nut (black) by an additional 1/8 turn
(45°, corresponds to 10 to 15 Nm (7 to 11 lbf ft)).
 The immersion tube cannot accidentally return to the service position.
When using the safety kit, screw the coupling nut (black) onto the immersion tube
until it is hand-tight.
Moving from the measuring position to the service position
LCAUTION
The immersion tube may move suddenly and cause injuries.
‣Hold the immersion tube with one hand.
1. Use the hook wrench to carefully open the coupling nut (black) by ¼ to ½ turn.
2. Pull the immersion tube out as far as the stop (service position).
3. Close the ball valve.
 The lever is horizontal.