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Endress+Hauser CleanFit P CPA 472, Operating Instructions Manual, Page: 24 / 31

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Endress+Hauser CleanFit P CPA 472 Operating Instructions Manual Download Page 24

CleanFit P CPA 472

5 Maintenance

22

Hauser

5.3

Repairs

The CPA 472 retractable assembly largely requires very little maintenance. The follo-
wing repair work is needed to ensure reliable operation:

•

Replace damaged assembly parts.

•

Keep O-rings and sealing surfaces on the assembly free of dirt.

•

Grease dry O-rings.

•

Inspect O-rings in contact with medium (see Fig. 3.16) regularly for damage and re-
place at reasonable intervals.

•

Remove deposits clinging to the assembly for time to time.

#

Warnung!
Any other intervention or modifications to the assembly are not permitted and will render 
all warranty claims null and void.

Summary of Contents for CleanFit P CPA 472

Page 1: ...BA 223C 07 en 03 00 No 51502647 CleanFit P CPA 472 Retractable Assembly for Measuring pH Redox Operating Instructions ...

Page 2: ......

Page 3: ...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 Contro...

Page 4: ...ons 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 t...

Page 5: ...tion 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 re...

Page 6: ... P CPA 472 2 Identification 4 Endress 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 ...

Page 7: ...ngths 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 A PP B PEEK C PVDF D PVDF with PEEK electrode holder Y Special design to customer specifications Seal material 2 VITON 3 KALREZ 9 Special design to customer specifications Process connection A G 1 exter...

Page 8: ...een 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 Opera...

Page 9: ...apter 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 extensio...

Page 10: ...lation 8 Endress 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 ...

Page 11: ...CleanFit P CPA 472 3 Installation Endress Hauser 9 Abb 3 4 Dimensions of CPA 472 short version with 225 mm liquid KCl electrode CeraLiquid P CPS 41 with hose connection for refilling with KCl ...

Page 12: ...les The minimum installation angle is 15 to the horizontal Hinweis The assembly requires a minimum nominal width of DN 80 for installation in a pipe For thinner pipes please use a flow vessel These are available as accessories DN 25 PVDF or DN 50 PP for Order Numbers see Accessories section Abb 3 6 Flow vessel for CPA 472 left DN 25 PVDF right DN 50 PP Achtung Risk of frost damage If there is a ri...

Page 13: ...ing parts of CPA 472 3 3 1 Installing the electrode Hinweis Before installing a new electrode make sure that the electrode shaft is fitted with O ring B and thrust collar A and that the protection cap is removed Moisten the electrode shaft before installing the electrode Simply immerse in water ...

Page 14: ...isible and tigh ten by turn using socket spanner WAF17 7 Insert measuring cable from top th rough handle and lifting tube 8 Screw measuring cable on electrode plug in head and tighten hand tight 9 Screw lifting tube hand tight back on assembly 10 Place measuring cable in splash pro tection tube and insert on protective tube 11 Release stop bolt locks catch Remove stop bolt lock and turn through 90...

Page 15: ...de and electrode tube in lifting tube 10 Insert tension sleeve from bottom in lif ting tube and screw to electrode tube 11 Screw lifting tube and electrode hand tight on assembly 12 Insert measuring cable from top th rough protective tube and KCl hood 13 Screw measuring cable on electrode plug in head and tighten hand tight 14 Insert electrolyte supply tube through KCl hood and connect to electrod...

Page 16: ...as far as possible so that the electrode does not run dry in the rinse chamber Besides water other or additional cleaning solutions may be used in the rinse chamber However pay attention to the material resistance of the assembly and comply with the maximum permitted temperatures see Technical Data 3 3 3 Compressed air connection to assembly control only when equipped accordingly Abb 3 12 Compress...

Page 17: ...hapter 3 3 3 as follows Abb 3 14 Connection of the pneumatic lines to the CPA 471 assembly 1 input 2 output Connect the compressed air lines for the Measurement position feedback signal to the lower limit switch at the connections marked 1 inlet and 2 outlet When the Measurement position is reached the air applied to inlet 1 is switched through and can be tapped at connection 2 Connect the compres...

Page 18: ...nge DN 50 flange ANSI 2 NPT 1 external thread grooved nut Rd 78 Abb 3 15 Existing process connections for the CleanFit P CPA 472 assembly The immersion depth is specified in each case long assembly version in brackets Hinweis Note the following depending on the process connection fitted All connections Check the correct seating of the O rings on the assembly Abb 3 16 O ring seals of the CPA 472 in...

Page 19: ...ats are correctly seated on the assembly and process connection Electrode is correctly installed and connected Water supply line is correctly connected to the rinse connections if fitted Limit switches depending on equipment fitted are correctly connected Caution Before applying compressed air to the pneumatic assembly make sure the connec tion is correctly fitted 4 2 Operating the CPA 472 in manu...

Page 20: ...ntrol ope rating manual for instructions It is not possible to lock pneumatic assembly in Measurement position The pneu matic system maintains the back pressure to the process pressure Achtung During maintenance work e g installing and removing electrode lock the assembly in maintenance position using the stop bolt lock During the automatic rinse process do not arrest the lifting tube with the sto...

Page 21: ...sary Cleaning can take place manually by removing the electrode or via the rinse connection if fitted Hinweis Do not use any abrasive cleaning agents for cleaning the electrodes This can lead to irreparable damage to the measuring surfaces After cleaning rinse the rinse chamber with copious amounts of water possibly dis tilled or de ionised Any residual cleaning agent can falsify the measurement d...

Page 22: ...tion cycles must be determined on a case by case basis At the start we recommend frequent calibration e g one a week in order to familiarise yourself with the running characteristics When carrying out the calibration always refer to the calibration instructions of the as sociated measuring transmitter see Operating Instructions of the measuring transmit ter Type of contamination Cleaning agent Gre...

Page 23: ...ibration with electrode removed Hinweis The calibration times depend on the process conditions and the measuring medium Do not allow electrodes to stand in distilled water Do not allow electrodes to stand dry Abb 5 1 Calibrating the electrode when removed ...

Page 24: ...ace damaged assembly parts Keep O rings and sealing surfaces on the assembly free of dirt Grease dry O rings Inspect O rings in contact with medium see Fig 3 16 regularly for damage and re place at reasonable intervals Remove deposits clinging to the assembly for time to time Warnung Any other intervention or modifications to the assembly are not permitted and will render all warranty claims null ...

Page 25: ... rinse fittings G DN 12 PVDF 2 pcs Order No 50090491 Retrofit set of limit switches Set of pneumatic limit switches 2 pcs Order No 51502874 Set of electric limit switches 2 pcs Order No 51502873 6 2 Electrodes pH redox combination electrodes length 120 mm OrbiSint W CPS 11 12 pH redox combination electrodes length 225 mm OrbiSint W CPS 11 12 CeraLiquid P CPS 41 42 with SSA or ESS head Calibration ...

Page 26: ...nical Information TI 161C 07 en Order No 50089137 Liquisys M CPM 223 253 pH and redox measuring transmitter Integrated electrode function monitoring measured value monitoring free configuration of alarm contact Technical Information TI 194C 07 en Order No 51500276 Mycom CPM 152 pH redox field measuring transmitter Integrated electrode function monitoring alpha value compensation calibration messag...

Page 27: ...reedom of installation approx 0 5 m Electrode lengths 120 mm 225 mm Weight of assembly approx 1 5 kg short version approx 3 kg long version Materials Materials in contact with medium Electrode holder PP PEEK PVDF Seals VITON KALREZ Materials in contact with medium Housings PA Process connections G 1 external thread flange DN 50 flange ANSI 2 NPT 1 external thread grooved nut Rd 78 Network connecti...

Page 28: ...CleanFit P CPA 472 7 Technical Data 26 Endress Hauser Pressure temperature chart Abb 7 1 Pressure temperature chart for the assembly CPA 472 Subject to modifications ...

Page 29: ...lication 2 K KCl electrode 9 13 L Limit switch 11 Limit switch pneumatic 15 M Maintenance 19 23 Maintenance manual mode 18 Manual cleaning 19 Manual mode 17 Measurement manual mode 17 Measuring system 7 Monitoring and safety devices 3 N Nameplate 4 O Operating pressure 3 Operation 2 17 Operational safety 3 O rings 16 Overview of mounting parts 11 P Pipe diameter minimum 10 Pneumatic mode 18 Pressu...

Page 30: ......

Page 31: ...Bolivia Tritec Cochabamba Tel 591 42 56993 Fax 42 50981 Brazil q Samson Endress Hauser Ltda São Paulo Tel 55 11 50313455 Fax 11 50313067 Canada q Endress Hauser Canada Ltd Burlington Ontario Tel 1 905 6819292 Fax 905 6819444 Chile q Endress Hauser Chile S A Santiago de Chile Tel 56 2 2088608 Fax 2 2088608 Colombia Colsein Ltda Bogotá D C Tel 57 1 2367659 Fax 1 6107868 Costa Rica EURO TEC Costa Ric...

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