FISCHER NC56 Operating Manual
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FISCHER NC56 Operating Manual

Capacitive filling level probe
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Operating manual
NC56
Capacitive filling level probe

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Summary of Contents for FISCHER NC56

  • Page 1 Operating manual NC56 Capacitive filling level probe...
  • Page 2 Great care was taken when compiling the texts and illustrations; Nevertheless, errors cannot be ruled out. The company FISCHER Mess- und Regeltechnik GmbH will not accept any legal responsibility or liability for this.

  • Page 3: Table Of Contents

    FISCHER Mess- und Regeltechnik GmbH Table of contents Table of contents 1 Safety instructions ......................4 1.1 General........................... 1.2 Personnel Qualification......................1.3 Risks due to Non-Observance of Safety Instructions ............. 1.4 Safety Instructions for the Operating Company and the Operator .........

  • Page 4: Safety Instructions

    1 | Safety instructions FISCHER Mess- und Regeltechnik GmbH 1 Safety instructions 1.1 General This operating manual contains basic instructions for the installation, operation and maintenance of the device that must be followed without fail. It must be read by the installer, the operator and the responsible specialist personnel be- fore installing and commissioning the device.

  • Page 5: Inadmissible Modes Of Operation

    FISCHER Mess- und Regeltechnik GmbH Safety instructions | 1 1.6 Inadmissible Modes of Operation The operational safety of this instrument can only be guaranteed if it is used as intended. The instrument model must be suitable for the medium used in the system.

  • Page 6: Product And Functional Description

    • Operating manual 2.2 Intended use The capacitive filling level probe NC56 serves to measure tank filling levels in tanks containing fresh water, waste water, faeces, diesel fuel, chemicals and extinguishing foam. Filling level heights of between 400 and 2000 mm can be measured.
  • Page 7 FISCHER Mess- und Regeltechnik GmbH Product and functional description | 2 NC56 2... NC56 3... NC56 4... NC56 6... NC56 S... NC56 5... Water Diesel Faeces Chemicals Rope probe wastewater Heating oil Foam Fig. 2: Device versions Probe housing Pipe adapter...

  • Page 8: Function Diagram

    2 | Product and functional description FISCHER Mess- und Regeltechnik GmbH 2.4 Function diagram Max. Min. Status LED brown blue black Output µC Probe : Start capacity (probe free) : End capacity (probe covered) Fig. 4: Function diagram 2.5 Design and mode of operation An AC voltage signal is exerted onto two metal rods held at a defined distance to each other.

  • Page 9: Assembly

    As standard, the device is intended for assembly in a size 1¼ mounting flange. If a protection tube is used, a pipe connection suitable for a size 2 mounting flange is used. The NC56 is suited only for vertical installation and, if possible, should be mounted at the highest point of the tank.
  • Page 10 3 | Assembly FISCHER Mess- und Regeltechnik GmbH 3.2.1 Shortening the probe rods CAUTION Damage to coating Insulated electrodes can become unusable as a result of rough impacts and shocks (e.g. hitting the floor). If you need to shorten the electrodes, proceed as follows: •...

  • Page 11: Electrical Connections

    FISCHER Mess- und Regeltechnik GmbH Assembly | 3 3.3 Electrical connections • By authorized and qualified specialized personnel only. • When connecting the unit, the national and international electro-technical regulations must be observed. • Disconnect the system from the mains, before electrically connecting the device.

  • Page 12: Start-Up

    4 | Start-up FISCHER Mess- und Regeltechnik GmbH 4 Start-up 4.1 General All electrical lines must have been installed properly before the start-up takes place. All connections must be arranged so that there are no mechanical forces acting on the device.
  • Page 13 FISCHER Mess- und Regeltechnik GmbH Start-up | 4 Useful information about the calibration If the filling levels change, the calibration can be repeated at any time. If just one of the two filling levels changes, it is sufficient to recalibrate only the corres- ponding value.

  • Page 14: Servicing

    5 | Servicing FISCHER Mess- und Regeltechnik GmbH 5 Servicing 5.1 Maintenance The instrument is maintenance-free. We recommend the following regular in- spection to guarantee reliable operation and a long service life: • Check the function in combination with downstream components.

  • Page 15: Technical Data

    FISCHER Mess- und Regeltechnik GmbH Technical data | 6 6 Technical data 6.1 General General information Type designation NC56 Measurement principle Continuous measurement of the capacity change between two/three probe rods, de- pending on the filling probe of a fluid.

  • Page 16: Operating Conditions

    6 | Technical data FISCHER Mess- und Regeltechnik GmbH 6.6 Operating conditions Ambient temperature range -20 °C ... +70 °C Storage temperature range -40 °C ... +80 °C Medium temperature range Max. 80°C IP protection class IP67 EN 61326-1:2013 EN 61326-2-3:2013...
  • Page 17 FISCHER Mess- und Regeltechnik GmbH Technical data | 6 6.7.2 Dimension drawings Ø60 Ø60 M12 plug connector G 1¼ G 1¼ Spanner attachment SW55 Ø4.8 Ø4 Ø4 Probe with 3 rods Probe with shrink-fit tubing (uncoated Ø60 SW77 octagonal G 1¼...

  • Page 18: Order Codes

    7 | Order codes FISCHER Mess- und Regeltechnik GmbH 7 Order codes Code no. 10 11 12 Type Design: (Code no.) Rod 1 Rod 2 Rod 3 Water Shrink-fit tubing Bare (1.4404) waste water Diesel Bare (1.4404) Bare (1.4404) Bare (1.4404)

  • Page 19: Accessories

    FISCHER Mess- und Regeltechnik GmbH Order codes | 7 Operating voltage: (Code no.) 9 to 32 V (for current output) 12 to 32 V (for voltage output) Version: [9-12] (Code no.) 2011 Version 7.1 Accessories Order no. Designation No. of...

  • Page 20: Attachment

    8 | Attachment FISCHER Mess- und Regeltechnik GmbH 8 Attachment Fig. 11: CE_DE_NC56 20/24 BA_EN_NC56...
  • Page 21 FISCHER Mess- und Regeltechnik GmbH Notes BA_EN_NC56 21/24...
  • Page 22 FISCHER Mess- und Regeltechnik GmbH 22/24 BA_EN_NC56...
  • Page 23 FISCHER Mess- und Regeltechnik GmbH BA_EN_NC56 23/24...
  • Page 24 Mess- und Regeltechnik GmbH Bielefelder Str. 37a D-32107 Bad Salzuflen Tel. +49 5222 974-0 Fax +49 5222 7170 www.fischermesstechnik.de info@fischermesstechnik.de Technische Änderungen vorbehalten. Subject to technical changes. Sous réserve de modifications techniques.

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