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Minebea Intec Contego Installation Manual

Hygienic weighing module
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Installation Manual
Hygienic Weighing Module Contego®
Translation of the Original Installation Manual
9499 053 24100
Edition 1.7.1
10/25/2019
Minebea Intec GmbH, Meiendorfer Str. 205 A, 22145 Hamburg, Germany
Phone: +49.40.67960.303 Fax: +49.40.67960.383

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  • Page 1 Installation Manual Hygienic Weighing Module Contego® Translation of the Original Installation Manual 9499 053 24100 Edition 1.7.1 10/25/2019 Minebea Intec GmbH, Meiendorfer Str. 205 A, 22145 Hamburg, Germany Phone: +49.40.67960.303 Fax: +49.40.67960.383...
  • Page 2 Any information in this document is subject to change without notice and does not represent a commitment on the part of Minebea Intec unless legally prescribed. This product should only be operated/installed by trained and qualiied personnel. In correspondence concerning this product, the type, name, and release number/serial number as well as all license numbers relating to the product have to be cited.

  • Page 3: Table Of Contents

    Hygienic Weighing Module Contego® Table of contents Table of contents Introduction............................3 Read the manual................................. 3 This is what operating instructions look like ......................3 This is what lists look like............................3 This is what menu items and softkeys look like..................... 3 This is what the safety instructions look like......................
  • Page 4 Hygienic Weighing Module Contego® Table of contents Load cell ..................................27 Cable connections ..............................28 Preparing for calibration........................29 General notes ................................29 Smart Calibration..............................29 Mechanical height adaptation..........................29 Troubleshooting ..........................31 General Notes................................31 Visual inspection................................31 Metrological controls ..............................31 8.3.1 Checking the zero output signal of the load cell..................31 8.3.2...

  • Page 5: Introduction

    1 Introduction Hygienic Weighing Module Contego® Introduction Read the manual Please read this manual carefully and completely before using the product. This manual is part of the product. Keep it in a safe and easily accessible location. This is what operating instructions look like 1.

  • Page 6: Hotline

    Hygienic Weighing Module Contego® 1 Introduction NOTICE Warning of damage to property and/or the environment. NOTICE indicates that damage to property and/or the environment may occur if appropriate safety measures are not observed. Take the corresponding safety precautions. Note: User tips, useful information, and notes.

  • Page 7: Safety Instructions

    The weighing module Contego® may be used only for weighing tasks as intended. The dimensions of all mounting and structural components must be calculated so that suicient overload capacity is ensured for all loads which may occur while taking the relevant standards into account.

  • Page 8: Recommendations For Installation

    Hygienic Weighing Module Contego® 3 Recommendations for installation Recommendations for installation Location of weighing modules Legend If necessary, release or remove the stopper, to avoid distortions. Load application Possible direction of movement EN-6 Minebea Intec...

  • Page 9: Foundation

    3 Recommendations for installation Hygienic Weighing Module Contego® The underframe of the vessels must be strong enough to support the speciied loads, horizontal (water level!) and lat. Preferably, vessels should be installed on 3 weighing modules with integrated stopper (see igure).

  • Page 10: Mounting Aid

    Hygienic Weighing Module Contego® 3 Recommendations for installation Upper plates are connected with each other. Domed feet, non-ixated Mounting aid The auxiliary mounting plates (1) facilitate installation of the weighing module. EN-8 Minebea Intec...

  • Page 11: Internal Lift-Of Protection With Integrated Jack-Up

    Threaded bush Lower plate The hygienic weighing module Contego® is equipped with an internal lift-of protection, i.e. no additional borings apart from the mounting holes in the vessel foot are required. Moreover, the vessel can be lifted by turning the threaded bolt (4) (see Chapter 3.4.2), e.g., when replacing the load cell.

  • Page 12: Jack-Up

    Hygienic Weighing Module Contego® 3 Recommendations for installation 3.4.2 Jack-up WARNING The vessel can tip over. Do not lift the vessel by more than 6 mm. Lift the vessel as follows: Loosen the nut (5). 2. Turn the threaded bolt (4) upwards at the hex to lift the vessel.

  • Page 13: Adjusting The Built-In Lift-Of Protection

    3 Recommendations for installation Hygienic Weighing Module Contego® 3.4.3 Adjusting the built-in lift-of protection Loosen the nut (5). 2. Slowly turn the threaded bolt (4) on the lift-of protection at the hex downwards to the stop. 3. Turn the threaded bolt (4) back 1–1½ times to set the distance A = approx. 2 mm.

  • Page 14: Speciications

    Hygienic Weighing Module Contego® 4 Speciications 4 Speciications Equipment supplied with the weighing module View with bellow View without bellow Description Bellow PR 6041/60S or PR 6041/70S mounting kit Load cell PR 6241/.. O-ring (2×) Lift-of protector / jack-up Auxiliary mounting plates (2×)
  • Page 15 Explosion Dust: Suitable for zone 21 and explosion subgroup III observing the following safety inst- ructions: The electrostatic charge of the folding bellows must be avoided. The Contego must be permanently installed. Protection type Intrinsic safety for PR 6241/..E Cable diameter...

  • Page 16: Possible Marking Of The Load Cell For The Ex Area

    Hygienic Weighing Module Contego® 4 Speciications Possible marking of the load cell for the Ex area Zone Marking Certiicate no. 0 and 1 II 1G Ex ia IIC T6 Ga BVS 16 ATEX E 005 only PR 6241/..E Ex ia IIC T6 Ga IECEx BVS 16.0005...

  • Page 17: Dimensions Of The Pr 6041/60S Weighing Module

    4 Speciications Hygienic Weighing Module Contego® 4.4 Dimensions of the PR 6041/60S weighing module Weighing module incl. load cell As-delivered state: Weighing position with auxiliary mounting plates dimensions in mm Minebea Intec EN-15...

  • Page 18: Ordering Information

    Hygienic Weighing Module Contego® 4 Speciications Load cell all dimensions in mm Model A [mm] B [mm] C [mm] D [mm] E [mm] PR 6241/12…52 PR 6241/13…23 Ordering information Weighing module incl. load cell Model Max. capacity E Type Version* Contego®...

  • Page 19: Technical Data Of The Load Cell

    4 Speciications Hygienic Weighing Module Contego® Load cell Model Max. capacity Type PR 6241/12 100 kg ..D1 PR 6241/22 200 kg ..D1/C3/C3E PR 6241/32 300 kg ..D1/C3 PR 6241/52 500 kg ..D1/C3/C3E PR 6241/13 ..D1/C3/C3E PR 6241/23 ..D1/C3 Technical data of the load cell...
  • Page 20 4…24 4…24 Max. supply voltage permissible for continuous operati- on without damage for Contego®..kg .. Ex .. Nominal ambient temp. range to hold the speciied performance °C -10…+55 -10…+55 Usable ambient temp. range permissible for continuous operati- °C...

  • Page 21: Installation

    5 Installation Hygienic Weighing Module Contego® Installation Prior to mounting 5.1.1 Preparing the ground The ground must be as follows: horizontal (spirit level!) supporting/sealing surface lat supporting/sealing surface suicient load carrying capacity for the provided loads NOTICE No leak-tightness of the supporting/sealing surface present between lower plate of weighing module and ground.

  • Page 22: Preparing Vessel Foot

    Hygienic Weighing Module Contego® 5 Installation The load distribution on the available load cells must be as even as possible to prevent overload of the individual load cells. If the weighing modules are arranged on diferent bases, these must be at the same level.
  • Page 23 5 Installation Hygienic Weighing Module Contego® Layout example for 4 weighing modules Create the drilling pattern of the upper plate of the weighing module (see Chapter 4.4) for each vessel foot depending on the location of weighing modules (see Chapter 3.1).

  • Page 24: Tightening Torques

    Hygienic Weighing Module Contego® 5 Installation Tightening torques The corresponding tightening torques are given in the following table. Mounting parts Thread Washer Tightening torque Upper plate M8-A2-70 16.5 Nm Lower plate M8-A2-70 16.5 Nm Lift-of protection M8-A2-70 16.5 Nm Threaded bush M8×2...

  • Page 25: Mounting The Weighing Module

    5 Installation Hygienic Weighing Module Contego® 5.3.2 Mounting the weighing module Note: The following describes how to mount the load cell with the adapter plate PR 6041/80S (see Chapter 11.2.4). The operations must be performed at all supporting points (e.g. vessel foot) of the weighing object (e.g.
  • Page 26 Hygienic Weighing Module Contego® 5 Installation 5.3.2.1 Assembly steps for loor installation Shown without upper plate and load cell Position the vessel on the bottom (7). 2. Mark the boreholes (8) and the seating (9) (outline) of the lower plate on the bottom (7), see igure.
  • Page 27 5 Installation Hygienic Weighing Module Contego® 3. Lift the vessel. 4. Make the drill holes for the threaded pins/stud screws (10). Type of assembly without adapter plate 35 mm with adapter plate 75 mm 5. It is indispensable to insert the threaded pins/stud screws (10) vertically with the required height 'H'.
  • Page 28 Hygienic Weighing Module Contego® 5 Installation 8. Insert the O-ring (16) into the groove of the lower plate (17). 9. Lower the vessel onto the bottom (7)/adapter plates (15) and the lower plate (17) using screws. Make sure to observe the tightening torque of the nuts (13) and the property classes of the nuts (13) and washers (14), see Chapter 5.2.

  • Page 29: Connection

    6 Connection Hygienic Weighing Module Contego® Connection General information NOTICE The load cell cable end is protected against contamination and moisture by a protective sheathing. The protective sheathing should only be removed shortly before connecting! Protect the cable ends against contamination. Moisture must not get into the open end of the cable.

  • Page 30: Cable Connections

    Hygienic Weighing Module Contego® 6 Connection Cable connections Note: All components are only shown schematically. Color code black blue green gray white EN-28 Minebea Intec...

  • Page 31: Preparing For Calibration

    For calibration of the measuring system, please refer to the manual of the corresponding indicator. Smart Calibration When using Minebea Intec devices, we recommend always running "Smart Calibration" irst. This allows all required values to be extracted from the Calibration Certiicate supplied.
  • Page 32 Hygienic Weighing Module Contego® 7 Preparing for calibration 4. Slip the bellows (not shown) upwards over the mounting kit and the vessel foot (1) or downwards over the adapter plate (7) with care. 5. Loosen the nut (5) of the lift-of protector.

  • Page 33: Troubleshooting

    8 Troubleshooting Hygienic Weighing Module Contego® Troubleshooting General Notes The following hints will enable a technician to do an initial diagnostic or help in case of incorrect or non-reproducible weighing results after commissioning and calibration. Visual inspection Component Possible errors...

  • Page 34: Checking The Insulation Impedance Of The Load Cell

    Hygienic Weighing Module Contego® 8 Troubleshooting Type Input impedance Output impedance (red core, blue core) (green core, gray core) 650 Ω ±6 Ω 610 Ω ±1 Ω 650 Ω ±6 Ω 610 Ω ±0.5 Ω 8.3.3 Checking the insulation impedance of the load cell...

  • Page 35: Servicing/Repairs/Cleaning

    9 Servicing/repairs/cleaning Hygienic Weighing Module Contego® Servicing/repairs/cleaning Care and maintenance 9.1.1 Maintenance The load cell PR 6241 is maintenance-free. 9.1.2 Replace the bellow WARNING The vessel may turn over during de-/mounting. Securing the vessel against tipping is imperative. Use an appropriate lifting jack.
  • Page 36 Hygienic Weighing Module Contego® 9 Servicing/repairs/cleaning Note: Securing the threaded bush (4) with Loctite is imperative. 7. Insert a new bellow (not shown) into the weighing module carefully, until the threaded bush (4) with the lift-of protector can be re-mounted. Make sure to use the correct tightening torque, see Chapter 5.2.

  • Page 37: Replacing The Load Cell

    9 Servicing/repairs/cleaning Hygienic Weighing Module Contego® 14. Re-screw the stopper (5) together with the ilm on the lower plate (9). Make sure to use the correct tightening torque, see Chapter 5.2. If shaft (8) or/and roller (7) cannot be moved, the weighing module is distorted and must be adjusted: 15.
  • Page 38 Hygienic Weighing Module Contego® 9 Servicing/repairs/cleaning 2. Slip the bellows (not shown) upwards over the mounting kit and the vessel foot (7) or downwards over the adapter plate (5) carefully so that the mounting kit remains accessible for mounting. 3. Loosen nut (4).

  • Page 39: Repairs

    9 Servicing/repairs/cleaning Hygienic Weighing Module Contego® Repairs The load cell PR 6241 is designed to be as robust as possible for the required measuring accuracy and is highly reliable. Should an electrical or mechanical defect nevertheless occur, the load cell must be replaced.

  • Page 40: Disposal

    Hygienic Weighing Module Contego® 10 Disposal 10 Disposal If the packaging is no longer required, please take it to your local waste disposal facility and/or a reputable disposal company or collection point. The packaging largely consists of environmentally friendly materials which can be used as secondary raw materials.

  • Page 41: Spare Parts And Accessories

    Cable junction boxes We recommend using the following junction boxes: Description Order no. PR 6130/04 (aluminum, 1–4 load cells, IP67; not for Contego®..kg .. Ex ..) 9405 361 30044 PR 6130/08 (polycarbonate, 1–8 load cells, IP65; not for Conte- 9405 361 30084 go®..kg ..

  • Page 42: Pr 6041/80S Adapter Plate

    Hygienic Weighing Module Contego® 11 Spare parts and accessories Description Order no. PR 6130/38S (1.4404, 1–8 load cells, IP68, IP69, veriiable; not for Conte- 9405 361 30384 go®..kg .. Ex ..) PR 6130/64Sa (1.4301, 1–4 load cells, IP68, IP69, veriiable, ATEX, IECEx, FM) 9405 361 30644 PR 6130/65S (1.4301, 1–4 load cells, IP68, IP69, veriiable, ATEX, IECEx, FM)

  • Page 43: Appendix

    12 Appendix Hygienic Weighing Module Contego® 12 Appendix 12.1 Certiicates/safety instructions/control drawing Ser. no. Description Document no. Contego: EU-Declaration of Conformity MEU17045 Declaration of Conformity MDC17003 PR 6241: EC-Type Examination Certiicate BVS 16 ATEX E 005 Certiicate of Conformity IECEx BVS 16.0005 EU-Type Examination Certiicate TÜV 03 ATEX 2301X...
  • Page 44 Published by Minebea Intec GmbH | Meiendorfer Strasse 205 A | 22145 Hamburg, Germany Phone: +49.40.67960.303 | Email: info@minebea-intec.com www.minebea-intec.com...

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