Endress+Hauser Cleanfit CPA871 User manual

Products Solutions Services
BA01323C/07/EN/01.14
71254692
Operating Instructions
Cleanfit CPA871
Flexible process retractable assembly for water,
wastewater and chemical industry

Endress+Hauser
Document information
Safety information
The structure, signal words and color coding applied to safety information comply with the
requirements of ANSI Z535.6 ("Product safety information in product manuals, instructions
and other collateral materials").
Symbols
Structure of information Meaning
DANGER
!
Cause (/Consequences)
Possible consequences if
ignored
‣Preventive measures
This symbol alerts you to a dangerous situation.
If you do not avoid this dangerous situation, it will result in
death or serious injury.
WARNING
!
Cause (/Consequences)
Possible consequences if
ignored
‣Preventive measures
This symbol alerts you to a dangerous situation.
If you do not avoid the dangerous situation, it may result in
death or serious injury.
CAUTION
!
Cause (/Consequences)
Possible consequences if
ignored
‣Preventive measures
This symbol alerts you to a dangerous situation.
If you do not avoid the dangerous situation, it may result in
minor or more serious injuries.
NOTICE
Cause/situation
Possible consequences if
ignored
‣Action/note
This symbol alerts you to situations which may result in
damage to property.
additional information, tip
permitted or recommended
forbidden or not recommended

Cleanfit CPA871
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Table of contents
1 Basic safety instructions . . . . . . . . . . . . . 4
1.1 Personnel requirements . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Incoming acceptance and product
identification . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Incoming acceptance . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Product identification . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Installing the sensor . . . . . . . . . . . . . . . . . . . . . . . 17
3.4 Post-installation check . . . . . . . . . . . . . . . . . . . . . 21
4 Operating options . . . . . . . . . . . . . . . . .22
4.1 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . 22
4.2 Operating elements . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 Manual operation . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4 Pneumatic operation . . . . . . . . . . . . . . . . . . . . . . 25
5 Maintenance. . . . . . . . . . . . . . . . . . . . . . 26
5.1 Cleaning the assembly . . . . . . . . . . . . . . . . . . . . . 26
5.2 Cleaning the sensor . . . . . . . . . . . . . . . . . . . . . . . 26
5.3 Cleaning agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.4 Replacing seals . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.1 Replacing damaged components . . . . . . . . . . . . . 36
6.2 Spare parts kits . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7 Accessories . . . . . . . . . . . . . . . . . . . . . . . 37
7.1 Installation material for rinse connections . . . . 38
7.2 Cleaning systems . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.3 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8 Technical data . . . . . . . . . . . . . . . . . . . . 41
8.1 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8.2 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8.3 Mechanical construction . . . . . . . . . . . . . . . . . . . 45
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Basic safety instructions Cleanfit CPA871
4Endress+Hauser
1 Basic safety instructions
1.1 Personnel requirements
‣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.
‣Measuring point faults may be rectified only by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided may only be carried out
directly by the manufacturer or by the service organization.
1.2 Designated use
The Cleanfit CPA871 retractable assembly, which can be manually or pneumatically
operated, is designed for the installation of sensors in tanks and pipelines.
Its mechanical construction means that it 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 resulting from improper or non-designated use.
1.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Regulations for explosion protection (Ex devices only)
• Installation guidelines
• Local standards and regulations
1.4 Operational safety
‣Before commissioning the entire measuring point, verify that all connections are correct.
Ensure that electrical cables and hose connections are not damaged.
‣Do not operate damaged products, and safeguard them to ensure that they are not
operated inadvertently. Mark the damaged product as defective.
‣If faults cannot be rectified, the products must be taken out of service and secured against
unintentional commissioning.
1.5 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.

Cleanfit CPA871 Incoming acceptance and product identification
Endress+Hauser 5
2 Incoming acceptance and product
identification
2.1 Incoming acceptance
• Verify that the packaging is not damaged.
• Notify your supplier of any damage to the packaging. Keep the damaged packaging until
the matter has been settled.
• Verify that the contents are not damaged.
• Notify your supplier of any damage to the delivery contents. Hold on to the damaged goods
until the matter has been settled.
• Check the delivery for completeness. Check it against the delivery papers and your order.
• 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. Furthermore, the
permitted ambient conditions must also be observed (see "Technical data").
• If you have any questions, please contact your supplier or your local sales center.
2.2 Product identification
2.2.1 Nameplate
You can find the following information on the nameplate:
• Manufacturer details
•Ordercode
• Extended order code
• Serial number
• Operating conditions
• Safety information symbols
Compare the order code on the nameplate with your order.
2.2.2 Product identification
The order code and serial number of your device can be found in the following locations:
• on the nameplate
• in the delivery papers.
To establish your device version, enter the order code from the nameplate into the
search field at the following address:
www.products.endress.com/order?ident
2.3 Scope of delivery
The scope of delivery comprises:
• Ordered version of the assembly
• Operating Instructions in English
If you have any questions, please contact your supplier or your local sales center.

Installation Cleanfit CPA871
6Endress+Hauser
3Installation
3.1 Installation
3.1.1 Orientation
The assembly is designed for installation on vessels and pipes. Suitable process connections
must be available for this.
The assembly is designed in such a way that there are no restrictions with regard to its
orientation.
The sensor that is used can restrict the orientation.
3.1.2 Dimensions
Short version
a0023894
Fig. 1: Pneumatic drive, short version, dimensions in mm
(inch)
a0023897
Fig. 2: Manual drive, short version, dimensions in mm
(inch)
XM
XS
XP
XA
Assembly in measuring position
Assembly in service position
Height of particular process connection (see table below)
Necessary mounting distance for sensor replacement
The mounting distance XA is 280 mm (11.02") for 120 mm sensors
The mounting distance XA is 408 mm (15.94") for 225 mm sensors

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Long version
a0023895
Fig. 3: Pneumatic drive, long version, dimensions in mm
(inch)
a0023898
Fig. 4: Manual drive, long version, dimensions in mm
(inch)
XM
XS
XP
XA
Assembly in measuring position
Assembly in service position
Height of particular process connection (see table below)
Necessary mounting distance for sensor replacement
The mounting distance XA is 360 mm (14.17") for 225 mm sensors
61
(2.40)
XP
200 (7.87)
107
(4.21)
63
XM/XS = 440/518 (17.32/20.39)
XA
(2.48)
61
(2.40)
61
(2.40)
107
(4.21)
42 (1.65)
63
(2.48)
XP
197 (7.76)
XM/XS = 440/518 (17.32/20.39)
XA

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Immersion chamber version
a0023896
Fig. 5: Immersion chamber version with pneumatic drive,
dimensions in mm (inch)
a0023899
Fig. 6: Immersion chamber version with manual drive,
dimensions in mm (inch)
XM
XS
XP
XA
Assembly in measuring position
Assembly in service position
Height of particular process connection (see table below)
Necessary mounting distance for sensor replacement
The mounting distance XA is 280 mm (11.02") for 225 mm sensors
The mounting distance XA is 570 mm (22.44") for 360 mm sensors

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Process connection (EHEDG) Height XP in mm (inch)
CB Clamp 2" 16 (0.63)
CC Clamp 2½" 16 (0.63)
FA Flange DN 40, EN1092-1 18 (0.71)
FB Flange DN 50, EN1092-1 18 (0.71)
FC Flange DN 80, EN1092-1 20 (0.79)
FD Flange 2" 150 lbs, ASME B16.5 19.1 (0.75)
FE Flange 3" 150 lbs, ASME B16.5 23.8 (0.94)
FF 10K50, JIS B2220 16 (0.63)
FG 10K80, JIS B2220 18 (0.71)
MA Dairy fitting DN 50 DIN 11851 15.5 (0.61)
MB Dairy fitting DN 65 DIN 11851 15.5 (0.61)
HB Thread NPT 1½" 40.5 (1.57)

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3.1.3 Immersion depths
a0023893
Fig. 7: Immersion depths
1 Short stroke (36 mm)
2 Long stroke (78 mm)
3 Immersion chamber version
Immersion depths in mm (inch)
Versions
Process connection 1 2 3
CB Clamp ISO2852
ASME BPE-2012 2"
X1
X2
14.9 (0.59)
34.2 (1.35)
61.0 (2.40)
75.7 (2.98)
119.9 (4.72)
134.6 (5.30)
CC Clamp ISO2852
ASME BPE-2012 2½"
X1
X2
14.9 (0.59)
34.2 (1.35)
61.0 (2.40)
75.7 (2.98)
119.9 (4.72)
134.6 (5.30)
FA Flange DN 40
EN1092-1
X1
X2
14.9 (0.59)
34.2 (1.35)
61.0 (2.40)
75.7 (2.98)
119.9 (4.72)
134.6 (5.30)
FB Flange DN 50
EN1092-1
X1
X2
14.9 (0.59)
34.2 (1.35)
61.0 (2.40)
75.7 (2.98)
119.9 (4.72)
134.6 (5.30)
FC Flange DN 80
EN1092-1
X1
X2
12.9 (0.51)
32.2 (1.27)
59.0 (2.32)
73.7 (2.90)
117.9 (4.64)
132.6 (5.22)
FD Flange 2" 150 lbs
ASME B16.5
X1
X2
13.8 (0.54)
33.1 (1.30)
59.9 (2.36)
74.6 (2.94)
118.8 (4.68)
133.5 (5.26)
FE Flange 3" 150 lbs
ASME B16.5
X1
X2
-
-
-
-
114.1 (4.49)
128.8 (5.07)
FF Flange 10K50
JIS B2220
X1
X2
14.4 (0.57)
33.7 (1.33)
61.3 (2.41)
76.0 (2.99)
120.2 (4.73)
134.9 (5.31)
FG Flange 10K80
JIS B2220
X1
X2
14.4 (0.57)
33.7 (1.33)
60.5 (2.38)
75.2 (2.96)
119.4 (4.70)
134.1 (5.28)
HB Thread NPT 1½" X1
X2
-
-
63.0 (2.48)
77.7 (3.06)
121.9 (4.80)
136.6 (5.38)
MA Dairy fitting
DN 50 DIN11851
X1
X2
15.4 (0.61)
34.7 (1.37)
61.5 (2.42)
76.2 (3.00)
120.4 (4.74)
135.1 (5.32)
MB Dairy fitting
DN 65 DIN11851
X1
X2
15.4 (0.61)
34.7 (1.37)
61.5 (2.42)
76.2 (3.00)
120.4 (4.74)
135.1 (5.32)
NA Thread ISO228
G 1¼
X1
X2
-
-
61.5 (2.42)
76.2 (3.00)
-
-

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a0024447
Fig. 8: Immersion depth in mm (inch) for process connection NA thread ISO228 G1¼

Installation Cleanfit CPA871
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3.2 Installation
3.2.1 Measuring system
a0023901
Fig. 9: Measuring system (example)
1 Cleanfit CPA871 assembly
2Measuringcable
3 Liquiline CM44x transmitter
4Sensor
3.2.2 Installing the assembly in the process
CAUTION
!
If process medium leaks out, there is a risk of injury due to high pressure, high
temperature or chemicals.
‣Wear protective gloves, goggles and clothing.
‣Install the assembly only if the tanks and piping are empty and unpressurized.
Prior to installation, check the flange seal between the flanges.
1. Move the assembly to the service position (the triangle position marking is visible
(å10).
2. Secure the assembly to the tank or piping using the process connection.
3. Follow the instructions in the next section to connect pipes for compressed air and rinse
water (for the relevant assembly version).
a0023307
Fig. 10: Position markings (service position)

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3.2.3 Pneumatic connection for automatic operation
Requirements:
• Air pressure of 4 to 7 bar (58 to 102 psi)
• Compressed air quality as per ISO 8573-1:2001
Quality class 3.3.3 or 3.4.3 (see below)
• Solids class 3 (max. 5 μm, max. 5 mg/m3, contamination with particles)
• Water content for temperatures 15 °C: class 4 pressure dew point 3 °C or lower
• Water content for temperatures 5 to 15 °C: class 3 pressure dew point -20 °C or lower
• Oil content: class 3 (max. 1 mg/m3)
• Air temperature: 5 °C or higher
• No continuous air consumption
• Minimum nominal diameter of the air lines: 2 mm (0.08 ")
Connection: Threaded union M5, hose 4/2 mm AD/ID (adapter to 6/4 mm AD/ID enclosed)
Drive can be damaged if the air pressure is too high.
There must be a pressure-reducing valve upstream if the air pressure can increase to above
7 bar (102 psi) (including any short pressure surges).
a0023912
Fig. 11: Assembly with pneumatic drive (without
protection cap)
1
2
3
4
5
6
7
8
Rinse connection
Automatic limit position lock, process
Connection for limit position switch
Automatic limit position lock, service
Fastening ring for protection cap
Pneumatic connection (move to measuring
position)
Pneumatic connection (move to service position)
Rinse connection
Use a pneumatic change-over valve (4/2-
way valve) to move the assembly. Connect
both inputs. If you connect only one input
(e.g. for test purposes), the piston will be
blocked, as the sensor guide moves before
the limit position lock is deactivated.

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3.2.4 Rinse connections
The connections of the service chamber of the CPA871 retractable assembly make it possible
to clean the chamber and the sensor with water or cleaning solution with a maximum
pressure of 6 bar (87 psi).
Seals can be damaged if the water pressure is too high
Install an upstream pressure-reducing valve if the water pressure can increase to above 6 bar
(87 psi) (including any short pressure surges).
3.2.5 Assignment of rinse connections
In the standard version, the inlet and outlet of the service chamber can be assigned as
desired.
In the immersion chamber version, the inlet and outlet of the service chamber are fixed. The
outlet of the service chamber is located under the leakage borehole. The leakage borehole is
sealed with an M5 screw.
a0024133
Fig. 12: Connection of service chamber in the immersion chamber version
1 Service chamber
2 Service chamber inlet
3Leakageborehole
4 Service chamber outlet

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3.2.6 Separation of service chamber and process
a0024239
Fig. 13:
1 Service chamber
2 Service chamber outlet
3 Service chamber inlet
4Sensorguide
In measuring position, the service chamber is separated from
the process by the process seals and sensor guide.
No process medium can get into the service chamber.
a0024240
When the assembly is moving from measuring to service
position (or the other way around), the service chamber is no
longer separated from the process. Now process medium can
get into the service chamber.
To prevent this, you can rinse the service chamber with a
sealing medium via the service chamber inlet. This also
means that no process medium potentially containing solid
particles needs to be removed through the service chamber.
a0024241
In service position, the service chamber is separated from the
process.

Installation Cleanfit CPA871
16 Endress+Hauser
3.2.7 Connecting the limit position switches
a0017831
Fig. 14: Inductive limit position switches
A Limit position switch, Service position
B Limit position switch, Measure position
C Plug, M12, solder side
DCoding
EPlug,pinside
a0022163
Fig. 15: Connecting cable for limit position switch
1"Measuring"position
2"Measuring"position
3"Service"position
4"Service"position
Only pins 1 and 2 are assigned for manually activated assemblies with one switch
(measuring position).
Signal table for limit position switches
Position of assembly Limit position switch for "measuring"
position
Limit position switch for "service"
position
Measuring Active HIGH Active HIGH
Service Active LOW Active LOW

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3.3 Installing the sensor
CAUTION
!
If process medium leaks out, there is a risk of injury due to high pressure, high
temperature or chemicals.
‣Wear protective gloves, goggles and clothing.
‣Install the assembly only if the tanks and piping are empty and unpressurized.
3.3.1 Preparing the sensor and assembly
3.3.2 Installing and removing sensors
a0023255
Fig. 17: Sensor installation options
1 Sensor adapter
2 Retraction pipe
A Sensor adapter is on top of the retraction pipe
B Sensor adapter is below the retraction pipe (not visible)
Depending on the assembly version, the sensor adapter is either visible (å17, pos. A)
or installed inside the retraction pipe where it is not visible (pos. B). As a result, the
procedures for installing and removing the sensors differ as follows:
1. Remove the protection cap from the
sensor.
Ensure that the o-ring and thrust collar
(å16, pos. 1) are present.
2. Immerse the sensor shaft in water. This
makes for easier installation.
3. Move the assembly to the service
position.
a0006214
Fig. 16: Installing the sensor
1 Thrust collar with o-ring
1

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18 Endress+Hauser
Installing and removing sensors if the sensor adapter is visible (pos. A)
a0024371
Fig. 18: Installing the sensor
1 Open-ended wrench (AF 17/19 mm)
2 Protection cap
3 Dummy plug (protection cap)
4Sensor
Gel and KCl sensors can be installed in this version.
Install the sensor as follows:
1. Remove the protection cap (å18, pos. 2) (this is possible only if the assembly is in
the service position).
2. Remove the yellow dummy plug (pos. 3).
3. Screw in the sensor (pos. 4) in the place of the dummy plug:
– hand-tighten initially
– then tighten it by approx. ¼ turn using the open-ended wrench (pos. 1)
4. Attach the open-ended wrench back into the protection cap.
5. Put the protection cap on the assembly. When doing so, guide the measuring cable
through the cable run (top of protection cap).
Always install the protection cap before moving the assembly to the measuring
position. The protection cap cannot be removed in the measuring position. This
prevents the sensor from being removed.

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Installing and removing sensors if the sensor adapter is not visible (pos. B)
a0024372
Fig. 19: Installing the sensor
1 Socket wrench (AF 17/19 mm)
2 Protection cap
3 Dummy plug (protection cap)
4Sensor
5 Retraction pipe
Gel sensors can be installed in this version. To install KCl sensors, you will need a "Gel -
KCl adapter".
Install the sensor as follows:
1. Remove the protection cap (å19, pos. 2) (this is possible only if the assembly is in
the service position).
2. Unscrew and remove the retraction pipe (pos. 5) (in an anticlockwise direction).
3. Remove the yellow dummy plug (pos. 3).
4. Screw in the sensor (pos. 4) in place of the dummy plug:
– hand-tighten initially
– then tighten it by approx. ¼ turn using the socket wrench (pos. 1).
5. Guide the sensor cable through the retraction pipe and connect it to the sensor.
6. Screw the retraction pipe back in.
7. Attach the socket wrench back into the protection cap.
8. Put the protection cap on the assembly. When doing so, guide the measuring cable
through the cable run (top of protection cap).
Always install the protection cap before moving the assembly to the measuring
position. The protection cap cannot be removed in the measuring position. This
prevents the sensor from being removed.

Installation Cleanfit CPA871
20 Endress+Hauser
Installation of 360 mm gel and KCL sensors with "Gel - KCl adapter"
a0024373
Fig. 20: Sensor installation, Part 1
1 Open-ended wrench (AF 17/19 mm)
2 Protection cap
3 Dummy plug (protection cap)
5 Retraction pipe
6 Adaptergel-KCl
7 Locknut
Install the sensor as follows:
1. Remove the protection cap (å20, pos. 2) (this is possible only if the assembly is in
the service position).
2. Unscrew and remove the retraction pipe (pos. 5) (in an anticlockwise direction).
3. Turn the lock nut (pos. 7) on the "Gel - KCl adapter" (pos. 6) as far as it will go in an
upward direction.
4. Remove the yellow dummy plug (pos. 3).
5. In the place of the dummy plug, screw in the "Gel - KCl adapter" (pos. 6) and hand-
tighten:
6. Hand-tighten the lock nut (in a clockwise direction), and then use an open-ended
wrench (AF 24 mm) to tighten it by ¼ turn.
7. Screw the retraction pipe back in.
8. Screw in the sensor (å21, pos. 4) (360 mm gel sensor or 360 mm KCl sensor):
– hand-tighten initially
– then tighten it by approx. ¼ turn using the open-ended wrench (pos. 1)
9. Attach the open-ended wrench back into the protection cap.
10. Put the protection cap on the assembly. When doing so, guide the measuring cable
through the cable run (top of protection cap).