Knick SensoGate WA 131 H User Manual
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Knick SensoGate WA 131 H User Manual

Sensor lock-gate
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SensoGate® WA 131 H
User Manual
Sensor Lock-Gate

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Summary of Contents for Knick SensoGate WA 131 H

  • Page 1 SensoGate® WA 131 H User Manual Sensor Lock-Gate...

  • Page 2: Table Of Contents

    Table of Contents SensoGate® WA 131 H Safety Information ................3 Intended Use ..................5 Properties and Features ................7 Package Contents ..................8 SensoGate® WA 131 H Product Code ...........9 Function Description ................10 Installing the Outlet Hose ..............11 Installing the Inlet Hose (Optional) ...........12 Build-Up of the Sensor Lock-Gate ............13 Modules available: rotary drives, immersion tubes, process adaptations ...14 Maintenance Work on the Drive Unit ..........15...

  • Page 3: Safety Information

    SensoGate® WA 131 H Process-Related Risks Knick Elektronische Messgeräte GmbH & Co. KG assumes no liability for damages caused by process-related risks known to the operator, which would in fact not permit the use of the WA 131 H sensor lock-gate.
  • Page 4 Exceeding the standard atmospheric conditions within the manufacturer’s specifications, such as ambient tem- perature, process pressure and temperature, does not impair the durability of the retractable fittings. Related certificates are included in the product’s scope of delivery and are available at www.knick.de in the cur- rent version.

  • Page 5: Intended Use

    Intended Use SensoGate® WA 131 H Intended Use The SensoGate® WA 131 H hygienic sensor lock-gate is used for installing a sensor for measure- ments in liquids. The sensor can be cleaned, calibrated or replaced under process conditions (pressure and temperature). The operator can exchange process adaptations (Ingold socket, dairy pipe, Varivent, BioControl, Clamp) or convert the fitting for the use with gel sensors or liquid-electrolyte sensors.
  • Page 6 (inlet to calibration chamber) to pre-vent backflow of rinse or process medium or compressed air into the water pipe. Suitable check valves made from different materials are available from Knick. Rating Plates SensoGate®...

  • Page 7: Properties And Features

    Properties and Features SensoGate® WA 131 H Hygienic design and sterilizability apply not only to the process side but also to the rinsing cham- ber. The only part of the immersion tube which comes into contact with the process is that part which was previously sterilized in the rinsing chamber.

  • Page 8: Package Contents

    Package Contents SensoGate® WA 131 H Check the shipment for transport damage and completeness. The package should contain: • Sensor lock-gate • Outlet hose • Documentation • Specific test report...

  • Page 9: Sensogate® Wa 131 H Product Code

    SensoGate® WA 131 H Product Code WA 131 H - Explosion For ATEX Zone 0 protection Without Sensor Sensor, Ø 12 mm, with PG 13.5 pH sensor, Ø 12 mm (pressurized) Optical sensor, Ø 12 mm, with PG 13.5 pH sensor Ø 12 mm with PG 13.5 and lateral electrolyte refill opening Gasket EPDM - FDA...

  • Page 10: Function Description

    Function Description SensoGate® WA 131 H The sensor lock-gate allows calibrating or adjusting the measuring system and cleaning the sensor in the running process. For that purpose, the sensor lock-gate can be moved between two positions using compressed air: • PROCESS position: Sensor located in the process medium. •...

  • Page 11: Installing The Outlet Hose

    Installing the Outlet Hose SensoGate® WA 131 H Push the outlet hose (A) over the connection nipple (C). Then secure the the hose connection with pipe clamp (B). The outlet hose serves for draining the rinse or calibration solutions. Also when you have a sensor lock-gate without rinse connection, you should install the included outlet hose because of the applied process pressure.

  • Page 12: Installing The Inlet Hose (Optional)

    Installing the Inlet Hose (Optional) SensoGate® WA 131 H For safe operation of the WA 131 H sensor lock-gate, the sealing plug or the inlet hose (option) must be mounted on the inlet port. As delivered, the inlet port is sealed with a plug (D). This sealing plug prevents that process fluid leaks from the inlet when the probe is moved.

  • Page 13: Build-Up Of The Sensor Lock-Gate

    Build-Up of the Sensor Lock-Gate SensoGate® WA 131 H The SensoGate® sensor lock-gate consists of 2 main units: drive unit and process unit. The drive unit performs the required movements to move the sensor into and out of the process. The process unit comprises the process-wetted calibration chamber as well as the process adaptation.

  • Page 14: Modules Available: Rotary Drives, Immersion Tubes, Process Adaptations

    Build-Up of the Sensor Lock-Gate Modules available: rotary drives, immersion tubes, process adaptations Rotary Drives Process Adaptations for sensors with for sensors with gel liquid electrolyte electrolyte (250 mm) (225 mm) Dairy-pipe screw joint Tri-Clamp Varivent Immersion Tube BioControl Available material: •...

  • Page 15: Maintenance Work On The Drive Unit

    Maintenance Work on the Drive Unit SensoGate® WA 131 H The drive unit must be removed, for example: • for general maintenance or inspection • to clean the calibration chamber, e.g. after a sensor has broken • to change the sensor / calibration-chamber gaskets •...

  • Page 16: Installing And Removing A Sensor

    Installing and Removing a Sensor SensoGate® WA 131 H Sensors must only be installed or removed by trained personnel authorized by the operating company. Make sure that the sensor lock-gate is in SERVICE position (see “Function Description” on page 10). WARNING! Process fluids leaking from the outlet or at the leakage holes (see “Build-Up of the Sensor Lock-Gate”...

  • Page 17: Installing A Gel-Electrolyte Sensor

    4) Screw in the sensor head (B) (19 mm A/F, PG 13.5) with a max. torque of 3 Nm (recommended tool: 19 mm, e.g., Knick ZU0647 wrench). 5) Connect cable socket with cable (G). Hold the cable in a loop and fix it using clamp (E).

  • Page 18: Removing A Gel-Electrolyte Sensor

    (process sealing might be defective). 5) Remove the sensor (recommended tool: 19 mm, e.g. Knick ZU0647 wrench). 6) Check whether slide washer (C) or O-ring (D) (or HD gasket) on the sensor are missing or damaged.

  • Page 19: Installing A Liquid-Electrolyte Sensor

    Installing a Liquid-Electrolyte Sensor You can use sensors with a length of 250 mm and a diameter of 12 mm, e.g. Knick SE551. To ensure that the electrolyte flows from the reference electrode to the process medium, the air pressure in the sensor pressure chamber must be 0.5 to 1 bar above that of the process medium.

  • Page 20: Removing A Liquid-Electrolyte Sensor

    Removing a Liquid-Electrolyte Sensor Removing the Sensor 1) The sensor must only be removed in SERVICE position. 2) Remove cable socket with cable. 3) Before removing the sensor, check that there is no liquid leaking from the outlet (process sealing might be defective).

  • Page 21: Removing The Drive Unit

    Removing the Drive Unit Step-by-Step Instructions WARNING! To separate the sensor lock-gate safely from the process, make sure that it is disconnected from all process media and process pressure. CAUTION! Before working on the drive unit make sure that the sensor lock-gate is in SERVICE position (see “Function Description”...

  • Page 22: Installing The Drive Unit

    Installing the Drive Unit Step-by-Step Instructions CAUTION: Be sure to follow the steps below in the correct order. 1) Insert the drive unit (in SERVICE position) into the process unit (P). The radial position of the drive unit is determined by a coding pin (O) in the calibration chamber and an opening (C) in the drive unit.

  • Page 23: Replacing The Immersion Tube

    Replacing the Immersion Tube The immersion tube must be removed or replaced: • for general maintenance • for cleaning the immersion tube, e.g. after the sensor is broken • for replacing the sensor gasket (O-ring) • when an immersion tube made of another material is required •...

  • Page 24: Installing The Immersion Tube

    Installing the Immersion Tube 1) Push the O-ring (D) (sensor gasket) onto the sensor (E) as shown. Note: Make sure that there is no further O-ring in the immersion tube (T) (installed by mistake). (For O-ring dimensions, see page 43 “Sealing Kits for Maintenance and Servicing”.) 2) Loosen the two screws (Z) by approx.

  • Page 25: Removing And Installing The Calibration Chamber

    Removing and Installing the Calibration Chamber To separate the calibration chamber, you require ZU 0754 or ZU 0740 Service Set (see description on page 36). We recommend the ZU 0746 and ZU 0747 mounting aids for proper mounting of the gaskets and scraper rings (see description on page 37). 1) Remove the screws (screwdriver TX25).

  • Page 26: Sensolock (Optional)

    SensoLock (Optional) Optionally, the WA 131 H is equipped with a SensoLock ring. SensoLock securely blocks the sensor lock-gate in SERVICE position. Turning the SensoLock ring to “LOCK“ position mechanically locks the internal lift piston and thus prevents the sensor lock-gate from moving to PROCESS position. The SensoLock ring can only be turned in SERVICE position.

  • Page 27: Installation Dimensions

    Installation Dimensions WA 131 H for sensors with gel electrolyte Sensor 225 mm PG 13,5 Ø 12...

  • Page 28: Wa 131 H For Sensors With Liquid Electrolyte

    Installation Dimensions WA 131 H for sensors with liquid electrolyte Sensor 250 mm...

  • Page 29: Immersion Depths

    Immersion Depths SensoGate® WA 131 H dairy pipe, TriClamp process adaptations Process Adaptation: Dairy Pipe, DIN 11851 DN 40 ... DN 100 Short immersion depth Long immersion depth Process Adaptation: Clamp 1.5" ... 4" Short immersion depth Long immersion depth Note: All dimensions in mm...

  • Page 30: Sensogate® Wa 131 H Varivent Process Adaptation

    Immersion Depths SensoGate® WA 131 H Varivent process adaptation Process Adaptation: Varivent ≥ DN 80 Long Immersion Depth Process Adaptation: Varivent ≥ DN 65 Short Immersion Depth Process Adaptation: Varivent ≥ DN 50 Note: All dimensions in mm...

  • Page 31: Sensogate® Wa 131 H Ingold Socket, Biocontrol Process Adaptations

    Immersion Depths SensoGate® WA 131 H Ingold socket, BioControl process adaptations Process Adaptation: Ingold Socket, 25 mm Process Adaptation: BioControl DN 50 or DN 65 Note: All dimensions in mm...

  • Page 32: Specifications

    Specifications SensoGate® WA 131 H Permissible process pressure and temperature during movement Process adaptation 1.4404 10 bar (at 0 ... 140 °C) Permissible process pressure and tem- 16 bar (at 0 … 40 °C) perature, statically in SERVICE position PP 10 bar (at 5 … 20 °C) Ambient temperature -10 ...

  • Page 33: Maintenance Intervals

    Maintenance Intervals SensoGate® WA 131 H As a result of highly variable process conditions (pressure, temperature, chemically aggressive media etc.), general information on necessary maintenance intervals is difficult to provide. If proven experience from similar points of measurement with regard to materials used and their resistance unter process conditions is available, the maintenance intervals can be adjusted by the customer.

  • Page 34: Lubricants, O-Rings

    Lubricants, O-Rings SensoGate® WA 131 H For fittings used in the chemical industry, the lubricant Syntheso Glep1 (silicone-free) is applied. For fittings used in the pharmaceutical / food industry (when FDA conformity is required), the lubricant Beruglide L (silicone-free) is applied (registered according to NSF-H1). These lubricants are silicone-free.

  • Page 35: Accessories / Spare Parts

    Accessories / Spare Parts Overview for SensoGate® WA 131 H Accessories Order No. Service set, basic ZU 0680 Service set, maintenance, repair, retrofit ZU 0740 Service set, calibration chamber ZU 0754 Sensor mounting wrench, 19 mm ZU 0647 Mounting aid for 20x2.5 O-rings ZU 0747 Mounting aid for scraper ring ZU 0746...

  • Page 36: Accessories

    Accessories SensoGate® WA 131 H ZU 0680 SensoGate® Service Set, Basic These tools are suitable for minor maintenance opera- tions. They help separating the drive unit from the process unit, allow mounting an Ingold socket and replacing the immersion tube including sensor gasket maintenance.
  • Page 37 Accessories SensoGate® WA 131 H ZU 0746 Mounting Aid for Scraper Ring The ZU 0746 mounting aid is used for easy and correct fitting of the scraper rings in the calibration chamber of the SensoGate®. ZU 0670/1 Air Supply for Pressurized Sensors 0.5 –...
  • Page 38 (e.g. due to weather exposure during outdoor use). NOTICE! Can only be used with fittings for gel- electrolyte sensors. Knick Socket Safety Weld-in Socket, Straight ZU 0717/DN50 adapted to DN50 ZU 0717/DN65...
  • Page 39 Accessories SensoGate® WA 131 H ZU 0717 Safety Weld-in Socket, Straight for Tank Wall The safety weld-in sockets are suitable for mounting fittings with Ingold socket (dia. 25 mm, G1 ¼) to plane tank walls, straight version. ZU 0718 Safety Weld-in Socket, Beveled 15° for Tank Wall The safety weld-in sockets are suitable for mounting fittings with Ingold socket...
  • Page 40 SensoGate®. YF-ZU1459/1 … /2 Adapter for Ingold Socket, 48 mm The YF-ZU1459 adapter for 48-mm Ingold safety sockets enables the installation of SensoGate® WA 131 H sensor lock-gates made by Knick in Ingold weld-in sockets made by Roche.

  • Page 41: Spare Parts

    Spare Parts SensoGate® WA 131 H ZU 0739 Bellows The bellows (for liquid-electrolyte sensors only) protects the fitting beneath the sensor pressure chamber against pollution and wear.

  • Page 42: Sealing Kits For Maintenance And Servicing

    Sealing Kits for Maintenance and Servicing SensoGate® WA 131 H The sealing kits are available in different materials. The smaller sealing kits (“Set X/1”) only contain gaskets for direct contact with the process. The extended sealing kits (“Set X/2”) also include gaskets for contact with the rinse medium. NOTICE! Take account of the process adaptations.
  • Page 43 Sealing Kits for Maintenance and Servicing SensoGate® WA 131 H Process Adaptation Ingold Socket H0 (see order code) Process-wetted Rinse-wetted gaskets gaskets Scraper ring 13x1.5 215.000-420 23x2 20x2.5 8x1.5 (2x) 6x1.5 (2x) 11.9x2.6 40x2.5 20x2.5 20x2 21x2 Process Adaptation Ingold Socket H1 (see order code) Process-wetted Rinse-wetted gaskets...
  • Page 44 Sealing Kits for Maintenance and Servicing SensoGate® WA 131 H Process Adaptation Dairy Pipe, Tri-Clamp, Varivent, BioControl Rinse-wetted Process-wetted gaskets gaskets Scraper ring 13x1.5 215.000-420 23x2 20x2.5 8x1.5 (2x) 11.9x2.6 6x1.5 (2x) 20x2.5 40x2.5 20x4...

  • Page 45: Declaration Of Contamination

    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 (0) 30 801 91 - 0 / Fax +49 (0) 30 801 91-200 E-mail: knick@knick.de / Internet: www.knick.de...
  • Page 46 Notes SensoGate® WA 131 H...
  • Page 47 Notes SensoGate® WA 131 H...
  • Page 48 2020 Subject to change © Knick Elektronische Messgeräte GmbH & Co. KG Beuckestraße 22 14163 Berlin Germany Phone: +49 30 80191-0 Fax: +49 30 80191-200 Email: info@knick.de Web: www.knick.de TA-215.304-KNEN04 20200622 097337...

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