Related Manuals for Knick SensoGate WA131MH
Summary of Contents for Knick SensoGate WA131MH
- Page 1 SensoGate WA131MH User Manual Manual Retractable Fitting Read before installation. www.knick-international.com Keep for future use.
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Page 2: Supplemental Directives
SensoGate WA131MH Supplemental Directives READ AND SAVE THIS DOCUMENT FOR FUTURE REFERENCE. BEFORE ATTEMPTING TO ASSEMBLE, INSTALL, OPERATE OR MAINTAIN THE PRODUCT, PLEASE ENSURE A COMPLETE UNDERSTANDING OF THE INSTRUC- TIONS AND RISKS DESCRIBED HEREIN. ALWAYS OBSERVE ALL SAFETY INFORMATION. FAILURE TO COMPLY WITH INSTRUCTIONS IN THIS DOCUMENT COULD RESULT IN SERIOUS INJURY AND/OR PROPERTY DAMAGE. -
Page 3: Table Of Contents
SensoGate WA131MH Table of Contents 1 Safety............................. 1.1 Intended Use ................................. 1.2 Personnel Requirements ........................... 1.3 Safeguards................................1.4 Residual Risks ................................ 1.5 Safety Accessories..............................1.6 Hazardous Substances ............................1.7 Operation in Explosive Atmospheres ......................1.7.1 Possible Ignition Hazards During Installation and Maintenance.......... - Page 4 6.3.4 Immersion Tube: Removal ........................35 6.3.5 Immersion Tube: Installation......................36 6.3.6 Calibration Chamber: Removal ......................37 6.3.7 Calibration Chamber: Installation..................... 38 6.3.8 Knick Repair Service ..........................38 7 Troubleshooting ........................... 39 8 Retractable Fitting: Emergency Release..................40 9 Decommissioning......................... 41 9.1 Retractable Fitting: Removal..........................
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Page 5: Safety
“operating company”) may be conducted, subject to the requirements set forth herein, by placing the product into the service position (SERVICE limit position). If the product is used with any product or part not authorized by Knick, the operating company assumes all risks and liabilities related thereto. -
Page 6: Safeguards
Process medium escaping from the leakage bores indicative of damage to the calibration chamber’s O- rings. This damage can be detected and repaired. The availability of safeguards is in part dependent on the version of the SensoGate WA131MH. Product Code, p. 12 ➜... -
Page 7: Residual Risks
WA131MH by the rotary movement of the rotating collar. Some versions of the SensoGate WA131MH are screwed to process connections with a thread or se- cured with coupling nuts. A turning rotating collar or process-related vibrations may cause the process connection to accidentally come loose from the process or a coupling nut. -
Page 8: Safety Accessories
The retainer clamp prevents the coupling nut of the Ingold socket (25 mm) screw joint from accidentally coming loose. The wires of the retainer clamp connect the SensoGate WA131MH to the cus- tomer’s process port. A locking lug on the retainer clamp engages in the groove of the coupling nut (form‑fit). -
Page 9: Operation In Explosive Atmospheres
• Non-metallic components are cleaned with a moist cloth only. Mechanically Generated Sparks Single impacts on metal parts or collisions between metal parts of the SensoGate WA131MH-X are not a potential ignition source if the following conditions are met: • Possible impact velocity is less than 1 m/s. -
Page 10: Possible Ignition Hazards During Operation
Tools, p. 48 ➜ Spare Parts For professional corrective maintenance of the product, only use Knick genuine spare parts. Usage of any other spare parts shall constitute an unintended use of the product. Spare Parts, p. 45 ➜... -
Page 11: Product
• EU Type Examination Certificate 2.2 Product Identification The various versions of the SensoGate WA131MH product are coded in a model designation. The model designation is stated on the nameplate, the delivery note, and the product packaging. Nameplates, p. 13 ➜... -
Page 12: Product Code
SensoGate WA131MH 2.2.2 Product Code Basic unit with manual drive unit, stainless steel, hygienic WA131MH – _ _ _ _ _ _ _ _ _ _ – _ _ _ Explosion protection ATEX Zone 0 – Without – Sensor Sensor ⌀12 mm with PG13.5 –... -
Page 13: Nameplates
For immersion depths A, B and pH sensor type 1. 2.3 Nameplates The SensoGate WA131MH is identified by nameplates on the drive unit and the process unit. The infor- mation provided on the nameplates varies according to the version of the SensoGate WA131MH. - Page 14 SensoGate WA131MH Nameplate, version with Ex approval Note: The figure shows a nameplate for the SensoGate WA131MH-X version by way of example. WA131MH-X0E***AA*2-000 2203714 / 1909 ® SensoGate 14163 Berlin Process Unit Made in Germany Type WA131MH-X*EHH1**2*-000 2203712 / 1906 Max.
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Page 15: Symbols And Markings
IP66 protection: The product is dust-tight and offers complete protection against contact as well as pro- tection against strong water jets. Safety lock button marked “PRESS”. Used to unlock the SensoGate WA131MH at the SERVICE or PROCESS limit positions for the purpose of moving to the service position (SERVICE limit position) or the process position (PROCESS limit position). -
Page 16: Retractable Fitting
SensoGate WA131MH 2.5.1 Retractable Fitting Note: The figure shows an example version of the SensoGate. Product Code, p. 12 ➜ 1 Drive unit 8 Inlet port 2 Process unit 9 Immersion tube 3 Protection sleeve 10 Process connection (e.g., Ingold socket) -
Page 17: Drives And Sensor Holders
SensoGate WA131MH 2.5.2 Drives and Sensor Holders Note: The figure shows a selection from the product line. Product Code, p. 12 ➜ 1 Drive, short ID , solid-electrolyte sensor (225 mm) 2 Drive, short ID , liquid-electrolyte sensor (250 mm) 2.5.3 Process Connections Note: The figure shows a selection from the product line. -
Page 18: Immersion Tube
It is recommended that changes to the SensoGate WA131MH be carried out by the Knick Repair Service. After making the necessary changes, a functional and pressure test is carried out and, if neces- sary, a modified nameplate is attached. -
Page 19: Service/Process Limit Positions
• The required process parameters can be measured. When using versions of the SensoGate WA131MH with electronic limit signal, a contact is closed when a limit position is reached at the limit switch. An electrical signal, e.g., at the control center, can be dis- played when the limit position is reached. -
Page 20: Limit Switch
SensoGate WA131MH Limit Switch Note: The limit switch is only available for versions of the SensoGate WA131MH with an electronic limit signal. Product Code, p. 12 ➜ 30 Ω 30 Ω The limit switch (1) is a “simple apparatus” in the meaning of EN 60079-11 for use in hazardous loca- tions up to Zone 0. -
Page 21: Installation
Dimension Drawings, p. 49 ➜ Note: The installation angle of the SensoGate WA131MH depends on the sensor type. An installa- tion angle of up to 10° above the horizontal plane is permissible for all sensor types. An installa- tion angle upside down (see view A) is only permitted if using sensors approved for upside-down operation. -
Page 22: Outlet Hose: Installation
Upside-Down Installation If installing the SensoGate WA131MH upside down, lay the outlet hose in an arc above the level of the calibration chamber. This prevents gravity from causing the calibration chamber to leak. 1 Calibration chamber... -
Page 23: Inlet Hose (Option): Installation
SensoGate WA131MH 3.4 Inlet Hose (Option): 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. -
Page 24: Commissioning
Follow the safety instructions. Safety, p. 5 ➜ Note: Upon request, Knick will provide safety briefings and product training during initial commis- sioning of the product. More information is available from the relevant local contacts. Install the SensoGate WA131MH. -
Page 25: Operation
5 Operation 5.1 Moving into the Process Position (PROCESS Limit Position) Note: When the process position (PROCESS limit position) is reached, this is indicated in different ways depending on the SensoGate WA131MH version. SERVICE/PROCESS Limit Positions, p. 19 ➜ Note: The safety lock button pops out when the process position (PROCESS limit position) is reached (see detail B). -
Page 26: Moving Into The Service Position (Service Limit Position)
SensoGate WA131MH 5.2 Moving into the Service Position (SERVICE Limit Position) Note: When the service position (SERVICE limit position) is reached, this is indicated in different ways depending on the SensoGate WA131MH version. SERVICE/PROCESS Limit Positions, p. 19 ➜ Note: The safety lock button pops out when the service position (SERVICE limit position) is reached (see detail B). -
Page 27: Installing And Removing A Sensor
Note: The outlet is used to discharge trapped rinse medium and must not be closed. By moving the SensoGate WA131MH to the limit positions, pressurized process medium may enter the calibration chamber. When the outlet is closed, this process medium may be compressed and splash out during a sensor replacement. -
Page 28: Solid-Electrolyte Sensor, Short Immersion Depth: Removal
Note: Rinse the sensor prior to removal in order to prevent entrainment of chemically aggressive process medium in the area of the sensor holders. Move the SensoGate WA131MH into the service position (SERVICE limit position). Moving into the Service Position (SERVICE Limit Position), p. -
Page 29: Liquid-Electrolyte Sensor: Installation
Push in 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 direction of installation specified by the sensor manufacturer. -
Page 30: Liquid-Electrolyte Sensor: Removal
Note: Rinse the sensor prior to removal in order to prevent entrainment of chemically aggressive process medium in the area of the sensor holders. Move the SensoGate WA131MH into the service position (SERVICE limit position). Moving into the Service Position (SERVICE Limit Position), p. -
Page 31: Maintenance
Repeat the functional test every 12 months. As applicable, adjust the interval to match the specific application for which the SensoGate WA131MH is used. The intervals listed are approximate recommendations based on the experience of Knick. The actual intervals de- pend on the specific application. -
Page 32: Immersion Lock Without A Mounted Liquid-Electrolyte Sensor: Functional Test
Safeguards, p. 6 ➜ Move the SensoGate WA131MH into the service position (SERVICE limit position). Moving into the Service Position (SERVICE Limit Position), p. ➜ Loosen the small coupling nut a bit but do not remove completely. -
Page 33: Corrective Maintenance
Safely disconnect the SensoGate WA131MH from the process. Retractable Fitting: Removal, p. 41 ➜ Move the SensoGate WA131MH into the service position (SERVICE limit position). Moving into the Service Position (SERVICE Limit Position), p. ➜ As necessary, remove the sensor (3). ... -
Page 34: Drive Unit: Assembly
SensoGate WA131MH 6.3.3 Drive Unit: Assembly Note: The radial installation position of the drive unit is determined by a coding pin in the calibration chamber and a hole in the drive unit. The coupling nut can be tightened only if the drive unit is cor- rectly inserted into the process unit. -
Page 35: Immersion Tube: Removal
SensoGate WA131MH 6.3.4 Immersion Tube: Removal Remove the drive unit (1). Drive Unit: Removal, p. 33 ➜ Move the drive unit to the process position (PROCESS limit position). The sensor must be in- stalled first. Moving into the Process Position (PROCESS Limit Position), p. 25 ➜... -
Page 36: Immersion Tube: Installation
SensoGate WA131MH 6.3.5 Immersion Tube: Installation Install the sensor. Installing and Removing a Sensor, p. 27 ➜ Move the drive unit to the process position (PROCESS limit position). Moving into the Process Position (PROCESS Limit Position), p. 25 ➜ Check the O‑ring (3) -
Page 37: Calibration Chamber: Removal
SensoGate WA131MH 6.3.6 Calibration Chamber: Removal Note: Service sets ZU0754 or ZU0740 are required to remove the calibration chamber. Tools, p. 48 ➜ Remove the process unit from the drive unit. Drive Unit: Removal, p. 33 ➜ Remove the screws (1) with a screwdriver of type TX25. Keep the screws (1) -
Page 38: Calibration Chamber: Installation
✔ 6.3.8 Knick Repair Service The Knick Repair Service offers professional corrective maintenance for the product to the original quality. Upon request, a replacement unit can be obtained for the period of the repair. Further information can be found at www.knick-international.com. -
Page 39: Troubleshooting
➜ Corrosion or contamination by process Perform emergency release. medium. Retractable Fitting: Emergency Release, p. 40 ➜ Clean the SensoGate WA131MH or send it to your local contact for repair. knick.de ➜ “Immersion Lock Without Corrosion or clogging by penetrated Send the SensoGate WA131MH to your Mounted Sensor”... -
Page 40: Retractable Fitting: Emergency Release
SensoGate WA131MH 8 Retractable Fitting: Emergency Release WARNING! Process or rinse medium, potentially containing hazardous substances, may es- cape from the SensoGate WA131MH or the process port. Follow the safety instructions. Safety, p. 5 ➜ WARNING! The emergency release deactivates the safeguard “Immersion Lock Without Mounted Sensor”... -
Page 41: Decommissioning
Operation in Explosive Atmospheres, p. 9 ➜ WARNING! Process or rinse medium, potentially containing hazardous substances, may es- cape from the SensoGate WA131MH or the process port. Follow the safety instructions. Safety, p. 5 ➜ Stop the process; depressurize or drain off the process medium if necessary. -
Page 42: Spare Parts, Accessories, And Tools
SensoGate WA131MH 10 Spare Parts, Accessories, and Tools 10.1 Seal Kits The seal kits are available in different materials. The smaller seal kits (“Set X/1”) only contain O-rings for direct contact with the process medium. The extended seal kits (“Set X/2”) also include O-rings for contact with the rinse medium. - Page 43 SensoGate WA131MH Seal Kits Order No. Set F/2 Process-wetted seal material: FKM FDA, ZU0850 Wetted by rinse medium: FKM FDA Set G/1 Process-wetted seal material: FFKM FDA ZU0768/1 Set G/2 Process-wetted seal material: FFKM FDA, ZU0851 Wetted by rinse medium: EPDM FDA...
- Page 44 SensoGate WA131MH Seal Kits for Ingold Socket H0 Process Connection Process-wetted Rinse-wetted O-rings O-rings Scraper ring 215.000-420 23x2 13x1.5 20x2.5 8x1.5 (2x) 11.9x2.6 6x1.5 (2x) 20x2.5 40x2.5 20x2 21x2 Seal Kits for Ingold Socket H1 Process Connection Process-wetted Rinse-wetted O-rings...
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Page 45: Spare Parts
SensoGate WA131MH 10.2 Spare Parts ZU0739 Bellows The bellows (only used on versions with liquid-electrolyte sensors) protect the fit- ting beneath the pressure chamber against external contamination and wear. ZU0889 Outlet Hose The outlet hose is used to drain calibration solutions and cleaning or rinsing me- dia from the calibration chamber. - Page 46 SensoGate WA131MH ZU0718 (15° Incline) Weld-In Socket for Tank Walls Process connection: Ingold socket (Ø 25 mm, G1¼″) ZU0718/DN (15° Incline) Weld-In Socket for Pipes For connection with Ingold socket (Ø 25 mm, G1¼″) Adapted to DN50 ZU0718/DN50 Adapted to DN65 ZU0718/DN65 Adapted to DN80 ZU0718/DN80...
- Page 47 The retainer clamp prevents the coupling nut of the Ingold socket (25 mm) screw joint from accidentally coming loose. The wires of the retainer clamp connect the SensoGate WA131MH to the cus- tomer’s process port. A locking lug on the retainer clamp engages in the groove of the coupling nut (form‑fit).
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Page 48: Tools
ZU0670/2 Air Supply for Pressurized Sensors 1 … 7 bar ZU0713 Hose, 20 m (Extension for ZU0670) This assembly group maintains the defined gauge pressure in the pressure cham- ber in versions of the SensoGate WA131MH for liquid-electrolyte sensors. 10.4 Tools ZU0680 SensoGate Service Set, Basic Equipment This tool set is suitable for minor maintenance work. -
Page 49: Dimension Drawings
SensoGate WA131MH 11 Dimension Drawings Retractable fitting for solid-electrolyte sensor, short immersion depth Note: All dimensions are listed in millimeters [inches]. - Page 50 SensoGate WA131MH Retractable fitting for liquid-electrolyte sensor Note: All dimensions are listed in millimeters [inches].
- Page 51 SensoGate WA131MH 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″ ... Clamp 3.5″ Short immersion depth (ID)
- Page 52 SensoGate WA131MH Clamp 2″ ... Clamp 3.5″ Long immersion depth (ID) Varivent ≥ DN 50 Short immersion depth (ID) Varivent ≥ DN 65 Short immersion depth (ID)
- Page 53 SensoGate WA131MH Varivent ≥ DN 80 Long immersion depth (ID) 25 mm Ingold socket BioControl DS 50 or DS 65...
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Page 54: Specifications
SensoGate WA131MH 12 Specifications Generally permitted process pressure and temperature Process connection 1.4404 10 bar (150 psi) 0 … 140 °C (32 … 284 °F) Only static in service position 16 bar (230 psi) 0 … 40 °C (32 … 104 °F) Permitted rinsing pressure and temperature 10 bar (150 psi) 5 … 150 °C (41 … 302 °F) Ambient temperature -10 … 70 °C (14 … 158 °F) Protection class... -
Page 55: Glossary
SensoGate WA131MH Glossary CE Marking Manufacturer’s declaration, in accordance with EU Regulation 765/2008, that the product is in conformity with the appli- cable requirements set out in the European Union harmonization legislation providing for its affixing. Corrective Maintenance Measures taken to return an item under review to an operational condition, with the exception of improvements. - Page 56 Knick Elektronische Messgeräte GmbH & Co. KG Beuckestraße 22 14163 Berlin Germany Phone: +49 30 80191-0 Fax: +49 30 80191-200 info@knick.de www.knick-international.com Translation of the original instructions Copyright 2024 • Subject to change Version 7 • This document was published on June 06, 2024.
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