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Kobold NMB Operating Instructions Manual

Magnetostrictive level transmitters
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Operating Instructions
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Magnetostrictive Level Transmitters
Model: NMB

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Summary of Contents for Kobold NMB

  • Page 1 Operating Instructions Magnetostrictive Level Transmitters Model: NMB...

  • Page 2: Table Of Contents

      Maintenance ....................25     Technical Information .................. 25     Order Codes ....................25     Dimensions ....................25     Disposal ...................... 26     EU Declaration of Conformance ..............27     page 2 NMB K01/1123...
  • Page 3 Manufactured and sold by: Kobold Messring GmbH Nordring 22-24 D-65719 Hofheim Tel.: +49(0)6192-2990 Fax: +49(0)6192-23398 E-Mail: info.de@kobold.com Internet: www.kobold.com NMB K01/1123 page 3...

  • Page 4: Note

    Please read these operating instructions before unpacking and putting the unit into operation. Follow the instructions precisely as described herein. The instruction manuals on our website www.kobold.com are always for currently manufactured version of our products. Due to technical changes, the instruction manuals available online may not always correspond to the product version you have purchased.

  • Page 5: Regulation Use

    Therefore, any resulting damage is not the responsibility of the manufacturer. The user assumes all risk for such usage. NMB series working on the magnetostrictive principle are suitable for high accuracy level measurement of storage tanks. Due to their high temperature and pressure rating these units can also be used for level gauging of technological tanks.

  • Page 6: Operating Principle

    Measurement is based on measuring the flying time since it is proportional with the distance of the float from the electronics. The above distance constitutes the basis for all output signals of the NMB! With the help of further mechanical data level and volume (tank content) can be calculated.

  • Page 7: Accessories

    DIN and ANSI flanges ZUB-NMS/BFEA402 ZUB-NMS/B… Sliding sleeve 1.4571 (316Ti) or PVDF: 1", 2" BSP/ process connection * The process connections and special seals are ordered separately and must be specified in the text part of the order NMB K01/1123 page 7...

  • Page 8: Special Conditions For Safe Use (The Ex-Versions Are Under Preparation)

    +90 °C Rigid probe with (+131 °F) (+194 °F) plastic coating Lower Temperature Limit Ex protection type Type d ia Transmitter ATEX -40 °C (-40 °F) Transmitter IECEx -25 °C -25 °C -25 °C with display page 8 NMB K01/1123...

  • Page 9: Installation

    These effects can be attenuated in applications with rigid tube probes by the use of stilling pipe along the whole probe. Please consult with a Kobold Messring distributor!  To ensure consistent and durable operation the measurement medium should be free of suspended solid materials, which could stick between the float and the probe.

  • Page 10: Wiring

    Possible electrostatic discharge may damage the unit. Thus, the internal electric connection points must not be touched by hand. page 10 NMB K01/1123...

  • Page 11: Loop Current Checking

    The loop current measuring connectors are designed for checking the proper installation only, they cannot be used as a permanent secondary voltage output. Testing and installation under explosive atmosphere, requires approved test equipment and trained personnel! NMB K01/1123 page 11...

  • Page 12: Programming

    Measurement Mode after 30 minutes and modifications will be unsaved. Factory settings The NMB transmitters will be delivered with the following Factory default values:  Measurement mode: level (LEV). Displayed value shows level.  Current output and bar graph on the right side are proportional to the level.

  • Page 13: The Nrm-300P Display Unit

    7.1.1 The NRM-300P module The NRM-300P is a 64 × 128 dot-matrix LCD display which can be plugged into the transmitter. (Universal – usable in other Kobold Messring devices as well – provided that the system software supports NRM-300P.) Warning!

  • Page 14: Programming With The Nrm-300P Display Unit

    If the instrument is left in programming mode after 30 mins it will automatically return to measuring mode. If the NRM-300P display is removed during programming the instrument immediately returns to measuring mode. page 14 NMB K01/1123...
  • Page 15 If the entered value is uninterpretable the software sends an error message in the bottom line (1) of the display. The display gives the same error message, independently of the measured value and the measurement principle. NMB K01/1123 page 15...

  • Page 16: Programmable Features Description

    Parameter group of the basic measurement parameters OUTPUT SETUP Parameter group of the output parameters CALCULATION Calculations SERVICE Service functions, calibration, test and simulation 7.3 Programmable features description 7.3.1 Basic measurement settings 7.3.1.1 Units 7.3.1.2 PV mode 7.3.1.3 Damping time page 16 NMB K01/1123...
  • Page 17 7.3.1.4 Application 7.3.1.5 Installation mode (ONLY USD (UpSide Down) – „Reverse installation position” devices) 7.3.2 Analogue output 7.3.2.1 Output current mode 7.3.2.2 Output current value 4 mA 7.3.2.3 Output current value 20 mA NMB K01/1123 page 17...
  • Page 18 7.3.3 Digital output 7.3.3.1 HART polling address (if there is a HART option in the device) 7.3.4 Calculation 7.3.4.1 Zero point offset (Distance between the lowest position of the float and the bottom of the tank) page 18 NMB K01/1123...
  • Page 19 7.3.4.2 Calculation mode 7.3.4.3 Tank function/shape 7.3.4.4 Tank bottom shape 7.3.4.5 Tank dimensions NMB K01/1123 page 19...
  • Page 20 7.3.4.6 Volume and mass table 7.3.5 Service functions 7.3.5.1 Security codes 7.3.5.2 Current output test page 20 NMB K01/1123...
  • Page 21 This function facilitates the user to be able to check the calculations (tank formula, table), outputs, and the additional processing instruments connected to the output. NMB transmitters can perform simulation on the value of a constant or a variable. To start simulation the instrument must return to Measurement mode. In Measurement mode if simulation is in progress, an inverse SIM caption appears on the display.

  • Page 22: Error Codes

    If this error still remains, contact the service! Parameter consistency error. INTEGRITY ERROR (Automatically fixed internal Check the programming! error.) Only WARNING AC COM. ERROR Hardware error Contact the service! CALIBRATION Sensor calibration error Contact the service! ERROR page 22 NMB K01/1123...

  • Page 23: Menu Map

    9. Menu map NMB K01/1123 page 23...
  • Page 24 24 NMB K01/1123...

  • Page 25: Maintenance

    10. Maintenance NMB units do not require maintenance on a regular basis. Repair during or after the guarantee period should only be carried out by Kobold Messring. Devices for repair should be returned fully cleaned, and disinfected. Unused devices must be stored within the ambient temperature range specified in the technical data, and a maximum of 98% relative humidity.

  • Page 26: Disposal

    (Cd, Hg, Li or Pb) of the heavy metal that is decisive for the classification as containing pollutants: 1. „Cd" stands for cadmium 2. „Hg" stands for mercury 3. „Pb" stands for lead 4. „Li" stands for lithium Electrical and electronic equipment page 26 NMB K01/1123...

  • Page 27: Eu Declaration Of Conformance

    15. EU Declaration of Conformance We, KOBOLD Messring GmbH, Nordring 22-24, 65719 Hofheim, Germany, declare under our sole responsibility that the product: Magnetostrictive Level Transmitters Model: NMB to which this declaration relates is in conformity with the following EU directives...

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