Endress+Hauser CleanFit P CPA 472 User manual

BA 223C/07/en/03.00
No. 51502647 CleanFit P CPA 472
Retractable Assembly for
Measuring pH/Redox
Operating Instructions

CleanFit P CPA 472 Table of Contents
Endress+Hauser 1
Table of Contents
1Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Safety symbols . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Intended application . . . . . . . . . . . . . . . . . . . . 2
1.3 Installation, start-up and operation . . . . . . . . . 2
1.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Identification . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Equipment name . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Scope of supply . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Registered trademark . . . . . . . . . . . . . . . . . . . 6
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Measuring system . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Installation conditions . . . . . . . . . . . . . . . . . . . 8
3.3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 Starting up the assembly . . . . . . . . . . . . . . . . 17
4.2 Operating the CPA 472 in manual mode . . . . 17
4.3 CPA 472 in pneumatic mode . . . . . . . . . . . . . 18
5 Maintenance . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6 Accessories . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 Connection accessories . . . . . . . . . . . . . . . . . 23
6.2 Electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.3 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4 Control of retractable assembly during
cleaning / calibration . . . . . . . . . . . . . . . . . . . 24
7 Technical Data . . . . . . . . . . . . . . . . . . . 25

CleanFit P CPA 472 1 Safety
2Endress+Hauser
1Safety
1.1 Safety symbols
#Warnung!
This symbol alerts you to hazards which could cause serious injuries as well as
damage to the instrument if ignored.
"Achtung!
This symbol alerts you to possible faults which could arise from incorrect operation.
They could cause damage to the instrument if ignored.
!Hinweis!
This symbol indicates important items of information.
1.2 Intended application
The hand-operated or pneumatically operated retractable assembly CleanFit P CPA 472
is designed for installing pH/redox sensors in tanks and pipes.
Its mechanical design permits its use in pressurised systems (see Technical Data).
The responsibility for compliance with the following safety requirements lies with the
operator:
•Explosion protection regulations
•Installation instructions
•Operating instructions for the assembly and its materials
•Local prevailing standards and regulations
1.3 Installation, start-up and operation
#Warnung!
•Installation, electrical connection, start-up, operation and maintenance of the measu-
ring system must be carried out exclusively by trained specialists authorised by the
system operator.
•Technical personnel must be familiar with the instructions in this manual and must ad-
here to them.
•When the assembly is operated in explosive atmospheres, it is imperative to comply
with the regulations applicable.
•Before switching on the system check all the connections again for correctness.
•Do not operate damaged assemblies which could pose a danger, and mark them as
defective.
•Measuring point faults may only be repaired by authorised and trained personnel.
•If faults cannot be repaired, the assembly must be taken out of service and secured
against unintentional start-up.
•Repairs may only be carried out by the manufacturer or by the Endress+Hauser ser-
vice organisation.

CleanFit P CPA 472 1 Safety
Endress+Hauser 3
1.4 Operational safety
The CPA 472 assembly has been designed for safety according to the state of the art
and in compliance with the applicable regulations and EC directives (see Technical Da-
ta).
However, if it is used improperly or other than for its intended purpose, it may pose a
hazard, e.g. through incorrect installation or the wrong operating conditions.
#Warnung!
•If the device is used for any application other than those described in this manual, it
may lead to unsafe and improper functioning of the measuring system and is therefore
not permitted.
•Make sure you strictly adhere to the warnings and notes in these Operating Instruc-
tions.
Instructions for installation in pressurised systems
#Warnung!
•Do not exceed the maximum assembly operating pressure.
•Depressurise the system before installing or removing the assembly.
•Inspect screw unions, valves and pipes for leaks or damage on a regular basis.
1.5 Return
If the assembly has to be repaired, please return it cleaned to the Endress+Hauser sa-
les centre responsible. Please use the original packaging.

CleanFit P CPA 472 2 Identification
4Endress+Hauser
2 Identification
2.1 Equipment name
2.1.1 Nameplate
The assembly variant is recognisable
from the order code on the nameplate.
Abb. 2.1: Nameplate of CleanFit P CPA 472

CleanFit P CPA 472 2 Identification
Endress+Hauser 5
2.1.2 Product structure
Drive and limit switches
A Manual drive (not modifiable to pneumatic)
B Pneumatics without limit switch (retrofittable)
C Pneumatics with 2 pneumatic limit switches
Y Special design to customer specifications
Electrode holder seal
1 Standard version
9 Special design to customer specifications
Electrode type
A For gel electrodes with Pg 13.5 (gland)
B For KCl electrodes with Pg 13.5 (gland) hose connection head (only immersion depth 1)
Y Special design to customer specifications
Immersion depth
1 Short version up to 110 mm (dep. on process connection)
(possible electrode lengths: A = 120 mm, B = 225 mm)
2 Long version up to 215 mm (dep. on process connection)
(possible electrode length: A = 225 mm)
9 Special design to customer specifications
Assembly material (in contact with medium)
APP
BPEEK
CPVDF
D PVDF with PEEK electrode holder
Y Special design to customer specifications
Seal material
2VITON
®
3 KALREZ®
9 Special design to customer specifications
Process connection
AG 1¼external thread
B NPT 1" external thread
C Grooved nut Rd 78 DIN 11851-3 in stainless steel
D PP flange DN 50 (only immersion depth 2)
E PP flange ANSI 2" (only immersion depth 2)
Y Special design to customer specifications
Additional equipment
1 without rinse connection (not retrofittable)
3 With rinse connection 2 x G ¼internal thread
4 With rinse connection 2 x NPT ¼" internal thread
9 Special design to customer specifications
CPA 472- complete order code

CleanFit P CPA 472 2 Identification
6Endress+Hauser
2.2 Scope of supply
"Achtung!
•Make sure the packaging is undamaged! If any damage is found, contact your postal
service or forwarding agent. Keep any damaged packaging until matters have been
clarified.
•Make sure the contents are undamaged! If any damage is found, contact your postal
service or forwarding agent and inform the suppliers. Keep any damaged goods until
matters have been clarified.
•Inspect the delivery for completeness and quantity according to the delivery papers,
and the instrument type and version as shown on the nameplate.
The following items are included in the delivery:
•CleanFit P CPA 472 assembly
•Operating Instructions BA 223C/07/en
In case of any queries please contact your supplier or the Endress+Hauser sales centre
responsible (see back page of this Operating Instructionsmanual).
2.3 Registered trademark
KALREZ®
Registered trademark of E.I. Du Pont de Nemours & Co., Wilmington, USA.
Tradename for FFKM
VITON®
Registered trademark of E.I. Du Pont de Nemours & Co., Wilmington, USA.
Tradename for FKM

CleanFit P CPA 472 3 Installation
Endress+Hauser 7
3Installation
The following procedure should be followed for a complete measuring system installa-
tion:
1. Mounting and connecting an electrode (see Chapter 3.3.1)
2. Water connection to rinse connections (see Chapter 3.3.2)
3. Installing the assembly (see Chapter 3.3).
3.1 Measuring system
A full measuring system comprises:
•Retractable assembly CleanFit P CPA 472
•1 pH combination electrode (120 or 225 mm)
•pH/redox measuring transmitter, e.g. Mycom CPM 152, MyPro CPM 431,
Liquisys M CPM 223/253
•Measuring cable CPK 1, CPK 7 or CPK 9 (terminated)
Optional:
•Junction box VBA for measuring cable extension
•Measuring cable CYK 71 (unterminated) for measuring cable extension
•Cleaning device with injector CYR 10
Abb. 3.1: Complete measuring system for CPA 472 with Mycom CPM 152

CleanFit P CPA 472 3 Installation
8Endress+Hauser
3.2 Installation conditions
3.2.1 Dimensions
Abb. 3.2: (left): Dimensions of CPA 472, short version (for electrode length of 120 mm)
Abb. 3.3: (right): Dimensions of CPA 472, long version (for electrode length of 225 mm)