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SensoGate WA131MH

6.3 Corrective Maintenance

6.3.1 Corrective Maintenance Safety Instructions

WARNING! Process medium, possibly containing hazardous substances, can escape from the

SensoGate WA131MH.

Follow the safety instructions.

➜

Safety, p. 5

CAUTION! Risk of cutting injuries from broken sensor glass.

Handle the sensor with care. Follow

the safety instructions in the related sensor documentation.

6.3.2 Drive Unit: Disassembly

01.

Safely disconnect the SensoGate WA131MH from the process.

➜

Retractable Fitting: Removal, p. 39

02.

As necessary, disconnect the outlet hose, inlet hose

, and limit switch

03.

Move the SensoGate WA131MH into the SERVICE position.

➜

Moving into the SERVICE Position, p. 24

04.

As necessary, remove the sensor

(3)

➜

Installing and Removing a Sensor, p. 25

Note:

Do not tilt the coupling nut. Use a suitable spanning wrench (e.g., the one contained in

ZU0680 service set or ZU0740 service set).

➜

Tools, p. 47

05.

Using the spanning wrench

(1)

, loosen the coupling nut

(2)

counterclockwise.

06.

Pull the drive unit

(4)

out of the process unit

(5)

Availability is dependent on the ordered version.

➜

Product Code, p. 11

Содержание SensoGate WA131MH

Страница 1: ...User Manual SensoGate WA131MH Manual Retractable Fitting www knick de Read before installation Keep for future use ...

Страница 2: ...n be sufficiently reduced This document uses the following warnings to indicate hazardous situations Symbol Category Meaning Remark WARNING Designates a situation that can lead to death or serious irreversible injury The warnings contain information on how to avoid the hazard CAUTION Designates a situation that can lead to slight or moderate reversible injury Without NOTICE Designates a situation ...

Страница 3: ...9 2 Product 10 2 1 Package Contents 10 2 2 Product Identification 10 2 2 1 Example of a Version 10 2 2 2 Product Code 11 2 3 Nameplates 12 2 4 Symbols and Markings 14 2 5 Design and Function 14 2 5 1 Retractable Fitting 15 2 5 2 Drives and Sensor Holders 16 2 5 3 Process Connections 16 2 5 4 Immersion Tube 17 2 6 Permissible Changes 17 2 7 Limit Positions 18 2 7 1 SERVICE and PROCESS Position 18 2...

Страница 4: ...ut a Mounted Liquid Electrolyte Sensor Functional Test 30 6 2 Maintenance 30 6 3 Corrective Maintenance 31 6 3 1 Corrective Maintenance Safety Instructions 31 6 3 2 Drive Unit Disassembly 31 6 3 3 Drive Unit Assembly 32 6 3 4 Immersion Tube Removal 33 6 3 5 Immersion Tube Installation 34 6 3 6 Calibration Chamber Removal 35 6 3 7 Calibration Chamber Installation 36 6 3 8 Knick Repair Service 36 7 ...

Страница 5: ... Operation in Explosive Atmospheres p 8 When installed SensoGate WA131MH can be sterilized with steam An independent testing institute evaluated the product in terms of its sterilizability 1 1 2 Personnel Requirements The personnel must be authorized by the operating company and instructed in handling this product The operating company must ensure that personnel are sufficiently qualified in accor...

Страница 6: ...vided on a safety label The safety label is attached to the strain relief bracket of the SensoGate WA131MH 1 2 Immersion Lock Without a Mounted Liquid Electrolyte Sensor The safeguard is only available with special version V Product Code p 11 The immersion lock can be seen at the yellow indicator ring 2 above the bellows 1 If the yellow indicator ring 2 is missing the safeguard function is not ava...

Страница 7: ...ents to stick together Adjust the inspection and maintenance intervals accord ingly Inspection p 29 1 4 2 Accidental Loosening of the Process Connection The coupling nut of the screw joint on process connections with a thread may become loose by acci dent This may be caused by manual rotation of the rotating collar when moving to the limit positions or by process related vibrations Pressurized pro...

Страница 8: ...atmospheres For further guidance consult the following IEC 60079 14 EU directives 2014 34 EU and 1999 92 EC ATEX 1 7 1 Possible Ignition Hazards During Installation and Maintenance To avoid mechanically generated sparks handle the SensoGate WA131MH X with care and apply suit able measures e g use covers and pads The metallic parts of the SensoGate WA131MH X must be connected to the plant s equipot...

Страница 9: ...on 1 8 Safety Training Upon request Knick Elektronische Messgeräte GmbH Co KG will provide safety instruction and product training during initial commissioning of the product Further information is available from the relevant Knick representatives 1 9 Maintenance and Spare Parts Preventive Maintenance Preventive maintenance can keep the product in good condition and minimize downtimes Knick pro vi...

Страница 10: ...Example of a Version Basic device with manual drive stainless steel hygienic WA131MH X 0 E H H 1 A A 2 2 0 0 0 Explosion protection ATEX Zone 0 X Sensor Sensor Ø 12 mm with PG 13 5 0 Gasket material EPDM FDA E Wetted materials 1 4404 1 4404 1 4404 H Process connections Ingold socket hygienic 1 4404 25 mm H 1 Immersion depth Short A Electrical limit signal Without A Rinse media connection Inlet G1 ...

Страница 11: ...d socket 1 4435 25 mm groove 45 mm 1 H Z Dairy pipe DN 40 C 0 Dairy pipe DN 50 C 1 Dairy pipe DN 65 C 2 Dairy pipe DN 80 C 3 Dairy pipe DN 100 C 4 Clamp 1 5 1 4404 J 1 Clamp 2 1 4404 J 2 Clamp 2 5 1 4404 J 3 Clamp 3 1 4404 J 4 Clamp 3 5 1 4404 J 5 Clamp 4 1 4404 J 6 BioControl 1 4404 DN 50 L 1 BioControl 1 4404 DN 65 L 2 Varivent 1 4404 DN 50 V 1 Varivent 1 4404 DN 65 short DN 80 long V 2 Varivent...

Страница 12: ...d the process unit by nameplates The infor mation provided on the nameplates varies according to the version of the SensoGate WA131MH Nameplate Version Without Ex Approval Note The figure shows a nameplate for the SensoGate WA131MH N version by way of example Type Made in Germany SensoGate No Insertion fitting Tamb Made in Germany 10 to 70 C Type No SensoGate Retractable probe Drive unit WA131MH N...

Страница 13: ...2 11 10 9 12 8 1 Drive unit nameplate 10 ATEX scope of application zone explosion group 2 Process unit nameplate 11 Designation of origin 3 Product name 12 EU Type Examination Certificate test number 4 IP protection 13 Information on explosion protection 5 ATEX marking 14 Permissible ambient temperature 6 Special conditions and danger points 15 Serial number year and week of production 7 CE markin...

Страница 14: ...ve the SensoGate WA131MH to the PROCESS position Moving into the PROCESS Position p 23 Symbol indicating the direction of rotation to move the SensoGate WA131MH to the SERVICE position Moving into the SERVICE Position p 24 Outlet symbol marking the outlet port of the SensoGate WA131MH Inlet symbol marking the inlet port of the SensoGate WA131MH 2 5 Design and Function SensoGate WA131MH consists of...

Страница 15: ...3 12 3 4 5 6 7 8 9 10 11 1 Drive unit 8 Inlet port 2 Process unit 9 Immersion tube 3 Protection sleeve 10 Process connection e g Ingold socket 4 Strain relief bracket with grounding connection 11 Calibration chamber base 5 Rotating collar 12 Calibration chamber top 6 Coupling nut 13 Leakage bore 7 Outlet port 14 Safety lock button ...

Страница 16: ...e p 11 1 2 1 Drive short ID 1 solid electrolyte sensor 225 mm 2 Drive short ID 1 liquid electrolyte sensor 250 mm 2 5 3 Process Connections Note The figure shows a selection from the product line Product Code p 11 1 2 3 4 5 1 Dairy pipe screw joint 4 BioControl 2 Tri Clamp 5 Ingold socket 3 Varivent 1 ID immersion depth ...

Страница 17: ...thout a mounted liquid electrolyte sensor Safeguards p 6 Any changes may result in deviations between the information on the nameplate and the actual ver sion of the SensoGate WA131MH The operating company is responsible for evaluating the permissi bility of the changes and for documenting and identifying the modified version It is recommended that changes to the SensoGate WA131MH are carried out ...

Страница 18: ...cal signal e g at the control center can be dis played when the limit position is reached Limit Switch p 19 The limit positions are indicated in different ways depending on the version of SensoGate WA131MH used Solid electrolyte sensor short immersion depth Liquid electrolyte sensor short immersion depth 1 2 3 1 2 4 SERVICE PROCESS SERVICE PROCESS In the SERVICE position the sensor head 3 is visib...

Страница 19: ...itch 1 has the following characteristics Need not be marked according to EN 60079 For connection to intrinsically safe circuits only Connection and ambient conditions Ui 30 V Ii 100 mA Pi 750 mW Ci negligibly low Li negligibly low Temperature class T6 T6 T5 T5 Equipment protection level Ga Gb Ga Gb Ambient temperature range 10 C 45 C 14 F 113 F 10 C 60 C 14 F 140 F 10 C 57 C 14 F 134 6 F 10 C 70 C...

Страница 20: ...pe of delivery of the SensoGate WA131MH for completeness Package Contents p 10 02 Check the SensoGate WA131MH for damage 03 Ensure the required sensor installation clearances Dimension Drawings p 48 04 Fasten the SensoGate WA131MH to the process port using the process connection 05 Optional If using the product in explosive atmospheres connect the grounding connection of SensoGate WA131MH to the p...

Страница 21: ... Inlet Hose Installation NOTICE Drinking water may be contaminated by rinse and process media when connecting to drink ing water pipes Observe the information contained in EN 1717 Install a suitable check valve e g check valve RV01 at the water or rinse connection Accessories p 44 1 2 5 4 3 1 5 4 3 Note To ensure safe operation the sealing insert or the inlet hose1 must be installed on the inlet A...

Страница 22: ...oving a Sensor p 25 05 Ensure that the process connection is securely fastened 06 Optional Ensure that installed safety accessories e g ZU0818 retainer clamp are securely fas tened Safety Accessories p 7 07 Optional Ensure that the SensoGate WA131MH X is correctly connected to the plant s equipoten tial bonding system Operation in Explosive Atmospheres p 8 08 Move the SensoGate WA131MH into the PR...

Страница 23: ...fety lock button has popped out is the function of the safeguard Immersion lock without a mounted sensor ensured Safeguards p 6 SERVICE PROCESS 1 2 A B 01 Mount the sensor Installing and Removing a Sensor p 25 Note When the rotary movement starts the safety lock button is automatically depressed 02 Depress the safety lock button 2 see detail A and rotate the rotating collar 1 clockwise The safety ...

Страница 24: ...il B Only if the safety lock button has popped out is the function of the safeguard Immersion lock without a mounted sensor ensured Safeguards p 6 PROCESS SERVICE 1 2 A B Note When the rotary movement starts the safety lock button is automatically depressed 01 Depress the safety lock button 2 see detail A and rotate the rotating collar 1 counterclockwise The safety lock button 2 pops out when the ...

Страница 25: ... splash out during sensor re placement 5 3 2 Solid Electrolyte Sensor Short Immersion Depth Installation 1 2 3 10 9 3 7 8 6 5 4 01 Move the SensoGate WA131MH into the SERVICE position Moving into the SERVICE Position p 24 02 Check outlet and leakage bores for escaping process medium If process medium escapes depres surize the process and perform troubleshooting Troubleshooting p 37 03 Check the co...

Страница 26: ...rainment of chemically aggressive process medium in the area of the sensor holders 1 2 3 5 4 01 Move the SensoGate WA131MH into the SERVICE position Moving into the SERVICE Position p 24 02 Check outlet and leakage bores for escaping process medium If process medium escapes depres surize the process and perform troubleshooting Troubleshooting p 37 03 Optional Remove ZU0759 protective cap 04 Discon...

Страница 27: ...emove the closure of the filling hole 4 of the sensor 3 Note In the case of inclined installation turn the electrolyte filling hole towards the top to prevent electrolyte from flowing out during operation of the SensoGate WA131MH Observe any deviating di rection of installation specified by the sensor manufacturer 07 Push in the sensor 3 2 3 2 1 5 7 6 8 9 9 08 Position the large coupling nut 2 and...

Страница 28: ...d perform troubleshooting Troubleshooting p 37 03 Disconnect the sensor cable 04 Loosen the small coupling nut 1 by a few rotations do not loosen completely 05 Fully loosen the large coupling nut 2 and pull off the entire unit Note Hold the filling hole upward at an inclined angle during removal to prevent electrolyte from es caping Follow the installation instructions in the sensor documentation ...

Страница 29: ... rings and re grease Corrective Maintenance p 31 6 1 2 Knick Premium Service Knick offers individually compiled services tailored to the customer s requirements for inspections and functional tests on the product Further information can be found at www knick de 6 1 3 Immersion Lock Without a Mounted Solid Electrolyte Sensor Functional Test 01 Move the SensoGate WA131MH into the SERVICE position Mo...

Страница 30: ... impossible to depress the safety lock button It must be impossible to rotate the rotating collar 05 Fasten the large coupling nut 3 finger tight 06 Fasten the small coupling nut 4 finger tight 07 Move the SensoGate WA131MH into the PROCESS position Moving into the PROCESS Position p 23 Safety lock button pops out when the PROCESS position is reached Rotating collar is locked to prevent rotation 0...

Страница 31: ...ect the SensoGate WA131MH from the process Retractable Fitting Removal p 39 02 As necessary disconnect the outlet hose inlet hose1 and limit switch1 03 Move the SensoGate WA131MH into the SERVICE position Moving into the SERVICE Position p 24 04 As necessary remove the sensor 3 Installing and Removing a Sensor p 25 Note Do not tilt the coupling nut Use a suitable spanning wrench e g the one contai...

Страница 32: ...s unit 5 While doing so posi tion the coding pin 4 in the hole 2 Note Do not tilt the coupling nut Use a suitable spanning wrench e g the one contained in ZU0680 service set or ZU0740 service set Tools p 47 03 Position the coupling nut 8 and tighten clockwise finger tight or to 10 Nm using the spanning wrench 6 04 As required install the outlet hose at the outlet 7 Outlet Hose Installation p 21 05...

Страница 33: ...sen the screws 2 around 4 rotations using a screwdriver of type TX25 3 do not completely unscrew 04 Rotate the immersion tube 4 around 60 counterclockwise until the bayonet coupling of the im mersion tube 4 is open 4 5 6 05 Pull the immersion tube 4 off the sensor 6 The O ring 5 is now visible or it may be located in the removed immersion tube 4 06 Check the O ring 5 for damage replace the O ring ...

Страница 34: ...ng a screwdriver of type TX25 6 do not completely unscrew Note There may be an O ring in the immersion tube left over from the removal process Remove this O ring prior to removal of the immersion tube 06 Carefully push the immersion tube 4 onto the sensor 3 and insert it into the bayonet cou pling 5 1 4 6 07 Firmly push the immersion tube 4 into the bayonet coupling 5 at the same time rotating aro...

Страница 35: ...cess unit from the drive unit Drive Unit Disassembly p 31 02 Remove the screws 1 with a screwdriver of type TX25 Keep the screws 1 in a safe place for as sembly later on 03 Position the pliers 3 and use the face pin spanner wrench 2 to loosen the coupling of the split calibration chamber 4 5 04 Unscrew the top 4 from the bottom 5 of the calibration chamber and separate the two parts ...

Страница 36: ...ts p 40 02 Connect the top 1 and the bottom 2 of the calibration chamber and screw together finger tight 03 Position the pliers 4 and use the face pin spanner wrench 3 to screw the calibration chamber together 5 5 Note Securing the calibration chamber with the two screws is not possible until the top and bottom parts have been firmly screwed together to the hard stop 04 Tighten the screws 5 with a...

Страница 37: ...ewed in Reset emergency release Retractable Fitting Emergency Release p 38 Sensor glass shattered Mechanical impact on the sensor glass e g by process medium Replace faulty sensor Installing and Removing a Sensor p 25 Remove any glass splinters from the SensoGate WA131MH Check immersion tube seal and replace if necessary Gasket Sets p 40 No or wrong measured value displayed Sensor may be faulty Re...

Страница 38: ...h the set screw 4 Drive Unit Disassembly p 31 02 Using the Allen wrench A F 2 5 mm 1 screw in the set screw 4 up to the stop 03 Move the SensoGate WA131MH into the SERVICE position Moving into the SERVICE Position p 24 04 Perform troubleshooting as required send the SensoGate WA131MH to Knick for repair Malfunction States p 37 Note The function of the safeguard Immersion lock without a mounted sen...

Страница 39: ...8 retainer clamp 06 Loosen the process connection 07 Remove the SensoGate WA131MH from the customer s process port 08 Close off the process port appropriately 8 2 Returns If required send the SensoGate WA131MH in a clean condition and securely packed to Knick Elektronische Messgeräte GmbH Co KG If the SensoGate WA131MH has been in contact with hazardous substances it must be decontaminated disinfe...

Страница 40: ...cess wetted gasket material FKM FDA wetted by rinse medium FKM FDA ZU0842 Set G 1 Process wetted gasket material FFKM FDA ZU0766 1 Set G 2 Process wetted gasket material FFKM FDA wetted by rinse medium EPDM FDA ZU0843 Set H 1 Process wetted gasket material FFKM FDA ZU0766 1 Set H 2 Process wetted gasket material FFKM FDA wetted by rinse medium FFKM FDA ZU0844 U 1 Process wetted gasket material EPD...

Страница 41: ...ss wetted gasket material FFKM FDA wetted by rinse medium EPDM FDA ZU0851 Set H 1 Process wetted gasket material FFKM FDA ZU0768 1 Set H 2 Process wetted gasket material FFKM FDA wetted by rinse medium FFKM FDA ZU0852 U 1 Process wetted gasket material EPDM FDA USP VI ZU1112 1 U 2 Process wetted gasket material EPDM FDA USP VI wetted by rinse medium EPDM FDA USP VI ZU1112 5 Note Further gasket set...

Страница 42: ...tted O rings Scraper ring 215 000 420 23x2 11 9x2 6 20x2 5 20x2 21x2 13x1 5 8x1 5 2x 40x2 5 20x2 5 6x1 5 2x Gasket sets for Ingold socket H1 process connection Process wetted O rings Rinse wetted O rings Scraper ring 215 000 420 23x2 11 9x2 6 20x2 5 20x2 21x2 13x1 5 8x1 5 2x 40x2 5 20x2 5 6x1 5 2x 33x2 5 ...

Страница 43: ...external contamination and wear ZU0889 Outlet Hose The outlet hose is used to drain calibration cleaning or rinse media from the cali bration chamber Outlet Hose Installation p 21 Safety Label The safety label provides information on the safeguard Immersion lock without a mounted solid electrolyte sensor Safeguards p 6 Damaged or lost safety labels will be replaced on request ...

Страница 44: ...eld In Socket for Tank Walls Process connection Ingold socket Ø 25 mm G1 ZU0717 DN Straight Weld In Socket for Pipelines Process connection Ingold socket Ø 25 mm G1 adapted to DN50 ZU0717 DN50 adapted to DN65 ZU0717 DN65 adapted to DN80 ZU0717 DN80 adapted to DN100 ZU0717 DN100 ZU0718 15 Incline Weld In Socket for Tank Walls Process connection Ingold socket Ø 25 mm G1 ZU0718 DN 15 Incline Weld In ...

Страница 45: ... for personnel ZU0922 Straight Safety Weld In Socket HSD for Tank Walls Process connection Ingold socket Ø 25 mm G1 ZU0922 DN Straight Safety Weld In Socket HSD for Piping Process connection Ingold socket Ø 25 mm G1 adapted to DN50 ZU0922 DN50 adapted to DN65 ZU0922 DN65 adapted to DN80 ZU0922 DN80 adapted to DN100 ZU0922 DN100 ZU0923 15 Incline Safety Weld In Socket HSD for Tank Walls Process con...

Страница 46: ... Protector The flange protectors protect plastic process connections with DIN flanges and nominal sizes of DN80 or DN100 from contact with the process medium Materials ZU0755 PEEK FFKM DN80 ZU0756 PEEK FFKM DN100 ZU0757 PVDF FFKM DN80 ZU0758 PVDF FFKM DN100 ZU0887 Inlet Hose The inlet hose is used to supply calibration cleaning or rinse media to the re tractable fitting calibration chamber Inlet H...

Страница 47: ...et ZU0754 SensoGate Service Set Calibration Chamber This tool set is suitable for maintenance work on the calibration chamber and its seals It allows easy separation of the split calibration chamber ZU0746 Accessory Tool for Scraper Ring The ZU0746 accessory tool allows easy and correct fitting of the scraper rings in the calibration chamber of the SensoGate WA131MH ZU0747 Accessory Tool for O Rin...

Страница 48: ...SensoGate WA131MH 48 10 Dimension Drawings Retractable fitting for solid electrolyte sensor short immersion depth Note All dimensions are given in millimeters inches ...

Страница 49: ...SensoGate WA131MH 49 Retractable fitting for liquid electrolyte sensor Note All dimensions are given in millimeters inches ...

Страница 50: ...SensoGate WA131MH 50 Dairy pipe DIN 11851 DN 40 DN 100 Short immersion depth ID Dairy pipe DIN 11851 DN 40 DN 100 Long immersion depth ID Clamp 1 5 Clamp 4 Short immersion depth ID ...

Страница 51: ...SensoGate WA131MH 51 Varivent DN 80 Long immersion depth ID Varivent DN 65 Short immersion depth ID Varivent DN 50 Short immersion depth ID ...

Страница 52: ...SensoGate WA131MH 52 25 mm Ingold socket BioControl DN 50 or DN 65 ...

Страница 53: ... F Degree of protection IP66 Housing material Stainless steel A2 PEEK PP EPDM Duran Sensors Product Code p 11 Process Connections Product Code p 11 Connections Inlet Female thread G 1 8 Outlet Female thread G 1 8 with connection nipple for hose NW 8 EPDM 3 m For pressurized sensors Hose connection NW 6 pressure in calibration chamber 0 5 1 bar 7 25 14 5 psi above process pressure max 7 bar 101 5 p...

Страница 54: ...SensoGate WA131MH 54 Appendix Return Form ...

Страница 55: ...uded accessories The product has not been exposed to hazardous substances or mixtures The product has been exposed to hazardous substances or mixtures State the classification of the hazardous substance as applicable together with the hazard statements or R phrases or at minimum provide the relevant hazard pictograms The product has been exposed to infectious substances The product was subjected t...

Страница 56: ...g the actual condition of an item under review including determining the causes of wear and deriving the necessary steps for future use Maintenance Combination of all technical administrative and managerial actions during the life cycle of an item intended to retain it in or restore it to a state in which it can perform the required function Source EN 13306 Maintenance Maintenance terminology Prev...

Страница 57: ...tal damage 5 Environmental factors 7 Equipotential bonding Avoidance of possible ignition hazards 8 Connection 26 Error elimination 37 Explosive atmospheres 8 F First inspection 29 Functional description retractable fitting 14 Functional test Immersion lock w o a liquid electrolyte sensor 30 Immersion lock w o a solid electrolyte sensor 29 G Gasket material 11 Gasket sets 40 Genuine spare parts 9 ...

Страница 58: ...al from operation 39 Removal retractable fitting 39 Residual risks 7 Retractable fitting Changes 17 Function 14 Installation angle 20 Leaking 37 Main assemblies 14 Return form 39 Returns 39 Rinsing pressure permissible 53 Risk assessment ii 8 S Safeguards Overview 6 Retrofit 17 Safety accessories Locking clamp 7 Retainer clamp K8 7 Retainer clamp Ingold socket 25 mm 7 Safety chapter 5 Safety data ...

Страница 59: ...SensoGate WA131MH 59 Notes ...

Страница 60: ... Fax 49 30 80191 200 info knick de www knick de Local Contacts www knick international com Copyright 2020 Subject to change Version 5 This document was published on February 26 2020 The latest documents are available for download on our website below the corresponding product description TA 215 305 KNEN05 096353 ...

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