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Cleanfit CUA451

Maintenance

Hauser

29

8  

Maintenance

L

WARNING

Medium flows out.

Risk of injury

Only install the assembly when the process is deactivated.

Before disassembling, always ensure that the process pipe and vessel are

unpressurized, empty and rinsed.

Move the assembly to the service position.

Close the ball valve.

8.1  

Maintenance tasks

NOTICE

Unfavorable ambient conditions such as plant vibrations or atmospheres that

encourage corrosion can affect the functional integrity of the safety ring.

There is the danger of the ring breaking or coming free from the groove.

Visually inspect for potential signs of corrosion.

Make sure that the ring is fully seated in the groove.

8.1.1  

Cleaning agent

The choice of cleaning agent depends on the degree and type of contamination. The most

common types of contamination and the appropriate cleaning agents can be found in the

following table.

Type of contamination

Cleaning agent

Greases and oils

Agents containing surfactants (alkaline agents) or water-soluble
organic solvents (halogen-free, e.g. ethanol)

Limescale deposits, metal hydroxide
buildup, lyophobic biological buildup

Approx. 3% hydrochloric acid

Sulfide deposits

Mixture of 3% hydrochloric acid and thiocarbamide (commercially
available)

Protein buildup

Mixture of 3% hydrochloric acid and pepsin (commercially
available)

Fibers, suspended substances

Pressurized water, possibly surface-active agents

Light biological buildup

Pressurized water

L

CAUTION

Inhalation of solvents

Health hazard due to solvents

Do not use any halogen-containing organic solvents or acetone. These solvents may

destroy plastic components of the sensor and are also suspected carcinogens (e.g.

chloroform).

8.1.2  

Disassembling the assembly

Disassembling the sensor

All parts in contact with the medium, such as the sensor and the sensor guide, must be

cleaned regularly.
Use the following tools to remove the sensor:

Summary of Contents for CleanFit CUA 451

Page 1: ...Products Solutions Services Operating Instructions Cleanfit CUA451 Retractable process assembly BA00369C 07 EN 14 18 71429362 2018 11 30 ...

Page 2: ......

Page 3: ...ct identification 9 4 3 Scope of delivery 10 4 4 Certificates and approvals 10 5 Installation 11 5 1 Installation conditions 11 5 2 Mounting the assembly 17 5 3 Post installation check 26 6 Commissioning 27 6 1 Preparatory steps 27 7 Operation 28 7 1 Adapting the device to the process conditions 28 8 Maintenance 29 8 1 Maintenance tasks 29 9 Repair 34 9 1 General information 34 9 2 Spare parts 35 ...

Page 4: ...gerous 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 y...

Page 5: ...organization 2 2 Designated use The manually operated Cleanfit CUA451 retractable assembly is designed for the installation of turbidity sensors in vessels and pipelines Thanks to its design it can be operated in pressurized systems The assembly is designed exclusively for use in liquid media Use of the device for any purpose other than that described poses a threat to the safety of people and of ...

Page 6: ...ducts as defective During operation If faults cannot be rectified products must be taken out of service and protected against unintentional operation LCAUTION Cleaning not switched off during calibration or maintenance activities Risk of injury due to medium or cleaning agent If a cleaning system is connected switch it off before removing a sensor from the medium If you wish to check the cleaning ...

Page 7: ...operational state ball valve open 1 Bracket for sensor holder 2 Sensor holder 3 Bayonet lock 4 Securing screws 5 Grease nipple 6 Ball valve for venting or rinse connection 7 Process connection 8 Retraction pipe 9 Hand lever for opening closing the ball valve 10 Handles An additional rinse chamber valve can be mounted in the locking screw ...

Page 8: ...e ball valve may be blocked or the sensor may be located in the dead space as a result 1 2 A0038451 2 Short sensor holder 1 Mounting position of the bayonet nut to hold the relevant sensor 2 Grooves of the safety rings to mount the bayonet nut A0038479 3 Mounting position of the bayonet nut for CUS65D The name indicated on the holder serves as a mounting aid The bayonet nut covers over the marking...

Page 9: ...rs 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 4 2 Product identification 4 2 1 Nameplate The nameplate provides you with the following information on your device Manufacturer identification Order code Extended order code Operating conditions Serial number Safety information and warn...

Page 10: ...address Endress Hauser Conducta GmbH Co KG Dieselstraße 24 D 70839 Gerlingen 4 3 Scope of delivery The delivery comprises Assembly in the version ordered Operating Instructions If you have any queries Please contact your supplier or local sales center 4 4 Certificates and approvals 4 4 1 CE PED The assembly has been manufactured according to good engineering practice as per Article 4 Paragraph 3 o...

Page 11: ...ions Assembly with G2 thread and weld in adapter in measuring position long and short stroke 226 8 90 Ø 49 3 1 94 100 3 94 Ø 46 1 81 106 4 17 1 0 04 X1 311 12 24 67 2 64 185 7 28 270 10 63 109 5 4 31 92 3 62 115 5 4 55 Ø 86 3 39 Ø 91 3 58 A0038481 4 Dimensions in mm in X1 Dimensions depend on the sensor ...

Page 12: ...A451 12 Endress Hauser Assembly with G2 thread and weld in adapter in service position long and short stroke 101 3 98 X2 171 6 73 100 3 94 32 1 26 X2 276 10 87 A0038630 5 Dimensions in mm in X2 Dimensions depend on the sensor ...

Page 13: ...A0038651 6 Dimensions in mm in X0 Dimensions depend on the sensor Sensor X0 CUS52D 26 5 1 04 CUS50D 26 3 1 04 CUS41 CUS51D COS61D 14 0 55 CUS65 COS51D 21 3 0 84 Sensor measuring position X1 CUS52D 139 5 47 CUS50D 110 4 33 CUS41 CUS51D COS61D 101 3 98 CUS65 COS51D 59 2 32 Sensor service position long X2 CUS52D 638 25 12 CUS50D 609 23 98 CUS41 CUS51D COS61D 600 23 62 CUS65 COS51D 558 21 97 ...

Page 14: ...D COS61 D CUS41 D CUS51D CUS50D CUS52D 131 5 16 173 6 81 182 7 17 211 8 31 32 1 26 A0038478 7 Dimensions of sensor holder with sensors in mm in 5 1 2 Process connections A 2 32 1 26 a b B C A0038650 8 Dimensions of process connections in mm in A Internal thread G2 B Internal thread G2 with weld in adapter C Flange DN 50 PN 16 as per EN 1092 1 and flange ANSI 2 150 lbs a DN 50 Ø 125 4 92 ANSI 2 Ø 1...

Page 15: ...ending pipe Installation in a horizontal pipe is also possible When using reflective materials e g stainless steel the pipe diameter must be at least 100 mm 4 An onsite calibration is recommended Install the sensor in places with uniform flow conditions Do not install the sensor in places where air may collect or foam bubbles form or where suspended particles may settle Avoid installation in the d...

Page 16: ... outlet The inflow to the rinse chamber is always from below Clearance between the sensor and pipe wall If the sensor is installed in pipes or very close to the wall this can cause backscatter and therefore a higher sensor signal Follow the instructions in the Operating Instructions for the sensor used ...

Page 17: ...oo high The assembly can be damaged A pressure reducing valve must be connected in series upstream if the water pressure can increase to over 6 bar 87 psi Rinse the sensor in the service position with a second ball valve for the rinse chamber see accessories 1 Connect the rinse water line to the rinsing nozzle provided The two rinse nozzles on the assembly are identical and can be used in the inle...

Page 18: ... within reach 2 Turn the bayonet nut The bayonet lock item 2 is released 3 1 2 A0038432 Taking the handles pull out the retraction pipe item 2 together with the sensor holder item 1 as far as it will go 4 Close the ball valve Push down the hand lever as far as possible only possible in one direction When the ball valve is closed the assembly is sealed from the process 5 Connect a hose to the vent ...

Page 19: ...ion pipe In doing so hold the retraction pipe steady and turn the handles 2 counterclockwise approx 9 turns 9 Holding the handles pull the bayonet nut along with the sensor holder out of the retraction pipe When the sensor is installed the bracket is the only possible way to check the alignment of the sensor in the process Observe the instructions on sensor alignment in the Operating Instructions ...

Page 20: ...ght into the internal thread of the sensor holder Aligning the bracket 1 A0038442 Push the bracket out of the installation bore holes The sensor holder bracket can be fitted in various positions at 60 intervals In this way you can use the bracket to mark the position of the sensor in the retraction pipe ...

Page 21: ...th the axis of the sensor head In this way you can determine the position of the sensor surface in the process and align the sensor with the medium flow 3 Push the bracket into the desired installation bore holes Fitting the sensor in the assembly 1 Fit the mounted sensor into the retraction pipe 2 A0038444 Hold the retraction pipe steady and tighten the bayonet nut turn the handles clockwise ...

Page 22: ...action pipe in the direction of the measuring position as far as it will go The retraction pipe with the sensor is in the measuring position 4 Hold the bayonet lock steady and close it 5 Secure the retraction pipe with the securing screws 6 Turn the entire top assembly part around its own axis until the sensor is in the right position in relation to the medium flow 5 2 4 Fitting the sensor holder ...

Page 23: ...place within reach 2 Turn the bayonet nut The bayonet lock item 2 is released 3 1 2 A0038432 Taking the handles pull out the retraction pipe item 2 together with the sensor holder item 1 as far as it will go 4 Close the ball valve Push down the hand lever as far as possible only possible in one direction When the ball valve is closed the assembly is sealed from the process 5 Connect a hose to the ...

Page 24: ...ion pipe 10 Clean the sensor holder sensor and seals if necessary Removing the sensor Use the following tools to remove the sensor Special pliers with flat jaws for outer locking rings without bores Alternatively a small screwdriver 1 Remove the top locking ring with the special pliers on the sensor holder above the bayonet nut The position of the bottom locking ring does not need to be changed 2 ...

Page 25: ... 1 A0038441 Screw the sensor hand tight into the internal thread of the sensor holder 2 Fit the mounted sensor into the retraction pipe 3 Hold the retraction pipe steady and tighten the bayonet nut turn the handles clockwise 4 Tighten the grub screw of the bayonet nut 5 Connect the rinse chamber connection 6 Push up the hand lever as far as possible The ball valve is open 7 Grease the retraction p...

Page 26: ...er mounting check all the connections to ensure they are secure and leak tight Ensure that the hoses of the optional rinse water connections cannot be removed without force These pipes are in open contact with the medium and must be secured accordingly Check the hoses for damage ...

Page 27: ...sioning check whether rinse hoses are connected to the assembly or whether dummy plugs are fitted at the rinse connections Otherwise do not introduce the assembly into the process Before commissioning check whether 1 All seals are correctly seated on the assembly and on the process connection 2 The sensor is correctly installed and connected ...

Page 28: ...l go 4 Lock the retraction pipe via the bayonet lock 5 Secure with the securing screws The sensor holder is now secure and cannot move back accidentally 6 At the handles turn the top assembly part around its own axis in order to align the sensor 7 1 2 From the measuring position to the service position 1 Release the securing screws with an Allen key 2 Open the bayonet lock 3 Pull out the sensor ho...

Page 29: ...cleaning agents can be found in the following table Type of contamination Cleaning agent Greases and oils Agents containing surfactants alkaline agents or water soluble organic solvents halogen free e g ethanol Limescale deposits metal hydroxide buildup lyophobic biological buildup Approx 3 hydrochloric acid Sulfide deposits Mixture of 3 hydrochloric acid and thiocarbamide commercially available P...

Page 30: ...e the bayonet lock item 2 3 1 2 A0038432 Taking the handles pull out the retraction pipe item 2 together with the sensor holder item 1 as far as it will go 4 Close the ball valve Push down the hand lever as far as possible only possible in one direction When the ball valve is closed the assembly is sealed from the process 5 Connect a hose to the vent valve 6 Vent the rinse chamber ...

Page 31: ...etraction pipe 10 Unscrew the sensor from the sensor holder 8 1 3 Cleaning the assembly To ensure stable and reliable measurements the assembly and the sensor must be cleaned regularly The frequency and intensity of the cleaning process depend on the medium A typical example of a cleaning interval would be 6 months in the case of drinking water Cleaning the assembly 1 Remove light dirt and fouling...

Page 32: ...ffice Preparing the assembly The seals are available as an accessory kit When replacing the seals interrupt the process and remove the assembly completely Use the following materials and tools Teflon tape Grease e g SYNTHESO GLEP 1 or PARALIQ GTE 703 2 5 mm Allen screw 6 mm Allen screw Adjustable open ended wrench up to 45 mm Open ended wrench set only for flange connection Flat screwdriver Adjust...

Page 33: ... of the bayonet lock The seals can now be accessed Replacing the seals and assembling the assembly 1 Lightly grease the O rings e g with Syntheso Glep 1 2 Replace the seals O rings if necessary 3 If you have not already done so wrap Teflon tape around the thread of the retraction pipe This protects the seals from damage when inserting the retraction pipe 4 Grease the retraction pipe 5 Reassemble t...

Page 34: ...ing all repair and maintenance work suitable measures must be taken to check the assembly for leaks and ensure it is leak tight Following this the assembly must again comply with the specifications in the technical data Only use spare parts from Endress Hauser to guarantee the safe and stable functioning of the device Detailed information on the spare parts is available at www endress com device v...

Page 35: ...r holders are used to adjust the length of the different sensors to a standard installation length Item No Description and contents Order number of spare parts kit 2 Ball handle with bolts 2 of each 51513164 3 Kit Kit universal sensor holder short 71425249 Kit Kit universal sensor holder long 71425251 Kit Kit retrofit univ sensor holder short 71425252 Kit Kit retrofit univ sensor holder long 71425...

Page 36: ...Viton O rings 51513155 9 Ball valve for rinse chamber as rinse connection or venting hose connection OD 9 51512982 10 Grease nipple H1 M6x1 51514843 5 12 Kit Bracket 11 5 pcs Allen screws M8 x 20 6 10 pcs Stop bolt 15 2 pcs Setscrews 7 10 pcs 51513158 9 3 Return The product must be returned if repairs or a factory calibration are required or if the wrong product was ordered or delivered As an ISO ...

Page 37: ...of turbidity and solids in wastewater 4 beam scattered light method With Memosens technology Product Configurator on the product page www endress com cus51d Technical Information TI00461C Turbimax CUS52D Hygienic Memosens sensor for turbidity measurement in drinking water process water and in utilities With Memosens technology Product Configurator on the product page www endress com cus52d Technic...

Page 38: ...eel 1 4404 AISI 316 L Order No 71265347 2 50 1 97 3 6 0 14 A0038763 15 Welding nipple dimensions in mm in Welding rinse socket DN 65 For automatic spray cleaning of CUS51D 31 41 sensors in pipes and vessels Bores for DN 50 flange 4 x 90 Ø18 on bolt circle Ø125 Bores for ANSI 2 flange 4 x 90 Ø19 on bolt circle Ø121 Rinse connection external thread R With removable rinse nozzle Up to 6 bar 87 psi 80...

Page 39: ...50 18 0 71 2 76 1 3 A0038762 16 Welding rinse socket dimensions in mm in D Markings for bores DN 50 flange 10 2 Service specific accessories Ball valve for rinse chamber As rinse connection complementing or replacing the vent cock supplied Order No 51512982 O ring set Viton FPM Order No 51512981 ...

Page 40: ...40 30 20 10 2 4 6 8 10 29 58 87 116 145 p p psi bar 176 158 140 122 104 86 68 50 T C T F A 85 185 A0038761 17 Pressure temperature ratings A Range in which the assembly can be operated manually 11 3 Mechanical construction Dimensions Section Installation Rinse connection nozzles Connection options 2 x ball valve with hose connection OD 9mm see Accessories A ball valve is included in the delivery f...

Page 41: ...eanfit CUA451 Technical data Endress Hauser 41 Materials Wetted Viton seals Stainless steel 1 4404 AISI 316 L Nickel plated brass vent cock or rinse connection Not wetted Stainless steel 1 4404 AISI 316 L ...

Page 42: ...ions 40 M Materials 41 N Nameplate 9 O Operational safety 6 P Product identification 9 R Requirements for the personnel 5 S Safety Operation 6 Workplace safety 5 Scope of delivery 10 Symbols 4 T Technical data Environment 40 Mechanical construction 40 Technical personnel 5 U Use Designated 5 W Warnings 4 Weight 40 Workplace safety 5 ...

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Page 44: ...www addresses endress com 71429362 71429362 ...

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