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.de Keep for future use.
- Page 2 Warnings SensoGate WA131MH was subjected to a risk assessment. Nevertheless, not all risks can be sufficiently reduced. This document uses the following warnings to indicate hazardous situations: Symbol Category...
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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................................. 1.4.1 Environmental Influences ........................1.4.2 Accidental Loosening of the Process Connection............... 1.5 Safety Accessories ..............................1.6 Hazardous Substances............................1.7 Operation in Explosive Atmospheres...................... - Page 4 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 Troubleshooting ........................... 37 7.1 Malfunction States ............................... 37 7.2 Retractable Fitting: Emergency Release....................... 38 8 Removal from Operation ......................
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Page 5: Safety
1.1 Intended Use SensoGate WA131MH is a retractable fitting for installation in boilers, tanks, and pipes. The product is used to accommodate a sensor for measuring process parameters. SensoGate WA131MH allows the sensor to move into the process medium. -
Page 6: Safeguards
Immersion Lock Without a Mounted Solid-Electrolyte Sensor A mechanical lock prevents a SensoGate WA131MH without a mounted solid-electrolyte sensor from being moved into the PROCESS position. The safety lock button cannot be depressed. The rotating collar is mechanically locked and cannot be rotated. -
Page 7: Residual Risks
Safety Accessories, p. 7 ➜ Operating SensoGate WA131MH without a retainer or locking clamp is at the risk of the operating company. The operating company must take action to rule out the possibility of the screw joint cou- pling nut accidentally loosening. -
Page 8: Hazardous Substances
Related certificates are included in the product’s scope of delivery and are available at www.knick.de in the current version. Observe all applicable local and national codes and standards for the installation of equipment in ex- plosive atmospheres. -
Page 9: Possible Ignition Hazards During Operation
SensoGate WA131MH Mechanically generated sparks Single impacts on metal parts or collisions between metal parts of the SensoGate WA131MH-X are not a potential ignition source only if the following conditions are met: • Possible impact velocity is less than 1 m/s •... -
Page 10: Product
• EU Declaration of Conformity • EU-Type-Examination Certificate 2.2 Product Identification The different versions of the SensoGate WA131MH are coded in a product code. The product code is stated on the nameplate, the delivery note, and the product packaging. Nameplates, p. 12 ➜... -
Page 11: Product Code
SensoGate WA131MH 2.2.2 Product Code Basic device with manual drive, stainless steel, hygienic WA131MH – _ _ _ _ _ _ _ _ _ _ – _ _ _ Explosion protection ATEX Zone 0 – Without – Sensor Sensor, Ø 12 mm with PG 13.5 –... -
Page 12: Nameplates
For immersion depths A, B, and pH sensor type 1. 2.3 Nameplates The SensoGate WA131MH is identified on the drive unit and the process unit by nameplates. The infor- mation provided on the nameplates varies according to the version of the SensoGate WA131MH. - Page 13 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 ® Insertion fitting Made in Germany Type WA131MH-X*EHH1**2*-000 2203712 / 1906 KEMA 07 ATEX 0065...
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Page 14: 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 limit positions for the purpose of moving to the SERVICE or PROCESS position. -
Page 15: Retractable Fitting
SensoGate WA131MH 2.5.1 Retractable Fitting Note: The figure shows an example version of the SensoGate. Product Code, p. 11 ➜ 1 Drive unit 8 Inlet port 2 Process unit 9 Immersion tube 3 Protection sleeve 10 Process connection (e.g., Ingold socket) -
Page 16: 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. 11 ➜ 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 17: Immersion Tube
It is recommended that changes to the SensoGate WA131MH are carried out by the Knick Repair Ser- vice. After making the necessary changes, a functional and pressure test is carried out and, if neces- sary, a modified nameplate is attached. -
Page 18: Limit Positions
• The desired process parameters can be measured. When using versions of 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 19: Limit Switch
SensoGate WA131MH 2.7.2 Limit Switch Note: The limit switch is only available on versions of SensoGate WA131MH with electronic limit signal. Product Code, p. 11 ➜ The limit switch (1) is a “simple apparatus” as defined in EN 60079-11 for use in explosive atmospheres up to Zone 0. -
Page 20: Installation
Ensure the required sensor installation clearances. Dimension Drawings, p. 48 ➜ Fasten the SensoGate WA131MH to the process port using the process connection. Optional: If using the product in explosive atmospheres, connect the grounding connection of SensoGate WA131MH to the plant’s equipotential bonding system. -
Page 21: Outlet Hose: Installation
SensoGate WA131MH 3.3 Outlet Hose: Installation Note: The outlet is used to drain trapped process medium and must not be closed. By moving the sen- sor to the respective limit positions, pressurized process medium can enter the calibration chamber and be compressed when the outlet is closed. This process medium may splash out during sensor re- placement. -
Page 22: Commissioning
SensoGate WA131MH 4 Commissioning WARNING! Process medium may leak from the SensoGate WA131MH in the event of damage or improper installation, and may contain hazardous substances. Follow the safety instructions. Safety, p. 5 ➜ Note: Upon request, Knick Elektronische Messgeräte GmbH & Co. KG will provide safety instruction and product training during initial commissioning of the product. -
Page 23: Operation
5 Operation 5.1 Moving into the PROCESS Position Note: When the PROCESS position is reached, this will be indicated in different ways, depending on the SensoGate WA131MH version. Limit Positions, p. 18 ➜ Note: The safety lock button pops out when the PROCESS position is reached (see detail B). Only if the safety lock button has popped out is the function of the safeguard “Immersion lock without a... -
Page 24: Moving Into The Service Position
SensoGate WA131MH 5.2 Moving into the SERVICE Position Note: When the SERVICE position is reached, this will be indicated in different ways, depending on the SensoGate WA131MH version. Limit Positions, p. 18 ➜ Note: The safety lock button pops out when the SERVICE position is reached (see detail B). Only if the safety lock button has popped out is the function of the safeguard “Immersion lock without a... -
Page 25: Installing And Removing A Sensor
This process medium may splash out during sensor re- placement. 5.3.2 Solid-Electrolyte Sensor, Short Immersion Depth: Installation Move the SensoGate WA131MH into the SERVICE position. Moving into the SERVICE Position, p. 24 ➜... -
Page 26: Solid-Electrolyte Sensor, Short Immersion Depth: Removal
Dur- ing this process, the sensor cable loop must be long enough so that the sensor cable does not im- pede the stroke movement of the SensoGate WA131MH. On first-time installation: Optionally connect the equipotential bonding line (8) -
Page 27: Liquid-Electrolyte Sensor: Installation
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. -
Page 28: 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. Moving into the SERVICE Position, p. 24 ➜... -
Page 29: Maintenance
Interval Operation required First inspection after Move the SensoGate WA131MH into the SERVICE position. If the product is not tight, a few days/weeks process medium will escape from the outlet hose. Moving into the SERVICE Position, p. 24 ➜... -
Page 30: Immersion Lock Without A Mounted Liquid-Electrolyte Sensor: Functional Test
WARNING! In the event of a malfunction, pressurized process medium may escape from the SensoGate WA131MH. Do not completely loosen the large coupling nut to ensure that pressure resistance is still available in the event of a malfunction. -
Page 31: Corrective Maintenance
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 Safely disconnect the SensoGate WA131MH from the process. Retractable Fitting: Removal, p. 39 ➜... -
Page 32: 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 33: Immersion Tube: Removal
SensoGate WA131MH 6.3.4 Immersion Tube: Removal Remove the drive unit (1). Drive Unit: Disassembly, p. 31 ➜ Move the drive unit (1) to the PROCESS position (sensor must be mounted). Moving into the PROCESS Position, p. 23 ➜ Loosen the screws around 4 rotations using a screwdriver of type TX25 (3) -
Page 34: Immersion Tube: Installation
SensoGate WA131MH 6.3.5 Immersion Tube: Installation Install the sensor. Installing and Removing a Sensor, p. 25 ➜ Move the drive unit to the PROCESS position. Moving into the PROCESS Position, p. 23 ➜ Check the O-ring (2) for damage; replace the O-ring if necessary. -
Page 35: Calibration Chamber: Removal
SensoGate WA131MH 6.3.6 Calibration Chamber: Removal Note: ZU0754 service set or ZU0740 service set are required to remove the calibration chamber. Tools, p. 47 ➜ Remove the process unit from the drive unit. Drive Unit: Disassembly, p. 31 ➜ Remove the screws (1) with a screwdriver of type TX25. -
Page 36: Calibration Chamber: Installation
TX25 . 6.3.8 Knick Repair Service The Knick Repair Service offers professional corrective maintenance on the SensoGate WA131MH to the original quality. Upon request, a replacement unit can be obtained for the period of the repair. -
Page 37: Troubleshooting
Corrosion or contamination by Perform emergency release process medium Retractable Fitting: Emergency Release, p. 38 ➜ Clean the SensoGate WA131MH or send it to Knick for corrective maintenance Knick Repair Service, p. 36 ➜ "Immersion lock without Corrosion or clogging by pene- Send SensoGate WA131MH to Knick for repair mounted sensor"... -
Page 38: Retractable Fitting: Emergency Release
SensoGate WA131MH 7.2 Retractable Fitting: Emergency Release WARNING! Process or rinse medium, possibly containing hazardous substances, can escape 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 39: Removal From Operation
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/ disinfected prior to being shipped. -
Page 40: Spare Parts, Accessories, And Tools
SensoGate WA131MH 9 Spare Parts, Accessories, and Tools 9.1 Gasket Sets The gasket sets are available in different materials. The smaller gasket sets (“Set X/1”) only contain O-rings for direct contact with the process medium. The extended gasket sets (“Set X/2”) also include O-rings for contact with the rinse medium. - Page 41 SensoGate WA131MH Gasket sets Order Code Ingold-socket H1 Set E/1 Process-wetted gasket material: EPDM FDA ZU0704/1 process connection Set E/2 Process-wetted gasket material: EPDM FDA, ZU0849 wetted by rinse medium: EPDM FDA Set F/1 Process-wetted gasket material: FKM FDA ZU0703/1...
- Page 42 SensoGate WA131MH Gasket sets 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 Gasket sets for Ingold-socket H1 process connection Process-wetted Rinse-wetted O-rings O-rings Scraper ring 215.000-420...
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Page 43: Spare Parts
SensoGate WA131MH 9.2 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, cleaning, or rinse media from the cali- bration chamber. -
Page 44: Accessories
SensoGate WA131MH 9.3 Accessories ZU0759 and ZU0759/1 Protective Cap The protective cap protects against the effects of weather exposure and prevents the ingress of external liquids or particles into the area of the sensor connections. ZU0759: suitable for versions with solid-electrolyte sensors... - Page 45 SensoGate WA131MH Safety weld-in sockets with Handling Safety Design (HSD) feature special grooves on the sealing surface for the process connection O-ring. These grooves prevent the O-ring from sealing if the Ingold coupling nut loosens inadvertently when process pressure is present. A minor leak means the loosening can be detected quickly and remedied before the Ingold coupling nut comes loose from the thread completely.
- Page 46 The RV01 check valve prevents process medium or calibration, cleaning, or rinse media from flowing back into the inlet of the SensoGate WA131MH. Replacing the existing inlet port of the SensoGate WA131MH with the RV01 check valve is recommended. Inlet Hose: Installation, p. 21 ➜...
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Page 47: Tools
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-Rings 20 x 2.5 The ZU0747 accessory tool allows easy and correct fitting of the O-rings 20 x 2.5 in the calibration chamber of the SensoGate WA131MH. -
Page 48: Dimension Drawings
SensoGate WA131MH 10 Dimension Drawings Retractable fitting for solid-electrolyte sensor, short immersion depth Note: All dimensions are given in millimeters [inches]. - Page 49 SensoGate WA131MH Retractable fitting for liquid-electrolyte sensor Note: All dimensions are given in millimeters [inches].
- Page 50 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 1.5″ ... Clamp 4″ Short immersion depth (ID)
- Page 51 SensoGate WA131MH Varivent ≥ DN 80 Long immersion depth (ID) Varivent ≥ DN 65 Short immersion depth (ID) Varivent ≥ DN 50 Short immersion depth (ID)
- Page 52 SensoGate WA131MH 25 mm Ingold socket BioControl DN 50 or DN 65...
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Page 53: Specifications
SensoGate WA131MH 11 Specifications Permissible process pressure and temperature General Process connection 1.4404 10 bar (at 0 ... 140 °C) / 150 psi (at 32 ... 284 °F) Only When Static in SERVICE Position 16 bar (at 0 … 40 °C) / 230 psi (32 ... 104 °F) Permissible rinsing pressure and temperature 10 bar (at 5 ... -
Page 54: Appendix
SensoGate WA131MH Appendix Return Form ➜... - Page 55 I have answered the above questions to the best of my knowledge. Name: Company: Date: Signature: Knick Elektronische Messgeräte GmbH & Co. KG Beuckestraße 22, 14163 Berlin, Germany Phone: +49 30 80191-0 Declaration of Contamination Fax: +49 30 80191-200 087148 info@knick.de • www.knick.de...
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Page 56: 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 57: Index
SensoGate WA131MH Index Accessories First inspection Accessory tool Functional description, retractable fitting Accompanying slip, gasket set Functional test Ambient temperature Immersion lock w/o a liquid-electrolyte sensor 30 Assembly Immersion lock w/o a solid-electrolyte sensor 29 Bellows Gasket material Gasket sets... - Page 58 SensoGate WA131MH Installation angle 20 Leaking 37 Maintenance Main assemblies 14 Lubricants 30 Return form Maintenance instructions Returns Malfunction states Rinsing pressure, permissible Markings Risk assessment ii, 8 Minimum qualification Model code Model designation Modifications Safeguards Overview 6 Retrofit 17...
- Page 59 SensoGate WA131MH Notes...
- Page 60 Knick Elektronische Messgeräte GmbH & Co. KG Headquarters Beuckestraße 22 • 14163 Berlin Germany Phone: +49 30 80191-0 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.
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