UWT Nivobob NB 3000 Technical Information/Instruction Manual
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UWT Nivobob NB 3000 Technical Information/Instruction Manual

Continuous level measuring system
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Nivobob

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Safety notes/ Technical support
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Introduction
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Dimensions
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Technical data
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Options
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Mounting
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Electrical installation
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Signal overview
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Programming
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Commissioning
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Maintenance
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Notes for use in Hazardous Locations
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Disposal
Subject to technical change.
All dimensions in mm (inches).
NB 3000 b
Continuous level measuring system
®
NB 3000
Technical information / Instruction manual
We assume no liability for typing errors.
Different variations to those specified are
possible.
Please contact our technical consultants.
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Summary of Contents for UWT Nivobob NB 3000

  • Page 1: Table Of Contents

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Table of contents Page Safety notes/ Technical support --------------------------------------------------------------------------------------------------------------------------- Introduction --------------------------------------------------------------------------------------------------------------------------- Dimensions --------------------------------------------------------------------------------------------------------------------------- Technical data Electrical Data Mechanical Data Operating conditions Transport and Storage Approvals Sensor weight guide --------------------------------------------------------------------------------------------------------------------------- Options ---------------------------------------------------------------------------------------------------------------------------...
  • Page 2 CAUTION: refer to related documents (manual) for details. Earth (ground) Terminal Protective Conductor Terminal Technical support Please contact your local supplier (see www.uwt.de for address). Otherwise you can contact: UWT GmbH Tel. 0049 (0)831 57123-0 Westendstr. 5 Fax. 0049 (0)831 76879 87488 Betzigau info@uwt.de...
  • Page 3 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Introduction Function The Nivobob NB 3000 is an electromechanic level measuring ® instrument for continuous measuring of level or volumes in silos, hoppers or tanks. The Nivobob NB 3000 is mounted on the top of the silo.
  • Page 4 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Dimensions Basic type Flange version Thread version DN100/ 4" Flange version 2"/ 3" Housing Housing Housing extension Housing extension Flange Thread Flange Socket Socket pipe pipe Rope/ tape Rope/ tape Flange version, bottom view...
  • Page 5 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Dimensions Options and Accessories pos.25 pos.28 Window in lid and Compressed air outside start button connector Window in lid Compressed air connector Outside start button Sensor weights Solids measurement: Rope version All weights ca.
  • Page 6 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Dimensions Solids measurement: Tape version All weights ca. 2.1 kg (4.6 lbs) Stainless Folding Claw PVC with steel cover Aluminium Aluminium Aluminium Aluminium 1.4305 (303) 380 x 380m m (15 x 15") X = 430 mm (16.9") Material: 1.4310 (301)/ ø95 (ø3.7")

  • Page 7: Electrical Data

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Technical data Electrical data Power supply AC version 98 .. 253 V 50 - 60 Hz DC version 20 .. 28 V (voltages incl. 10% of EN 61010) Installed load AC version: 150 VA (including internal heater (80 W))

  • Page 8: Mechanical Data

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Technical data Memory Non-volatile (no backup battery required) > 10 years data retention Connection terminals 0.14 .. 2.5 mm (AWG 26 .. 14) Cable entry According to selection: Screwed cable gland: 2x M20 x 1.5 and 1x M25 x 1.5 Blindplug: 2x M20 x 1.5 or Conduit ANSI B1.20.1: 1x NPT 3/4"...

  • Page 9: Operating Conditions

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Technical data Operating conditions Process overpressure -0.3 .. +0.3 bar (-4.4 .. +4.4 psi) -0.5 .. + 1.7 bar (-7.3 .. +25 psi) optional for CE + ATEX -0.5 ..

  • Page 10: Approvals

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Technical data Approvals Hazardous Locations* ATEX II 1/2 D FM Class. II, III Div.1 Gr. E-G TR-CU Ex ta/tb IIIC T! Da/Db X General purpose * EN 61010-1 General purpose TR-CU EN 61326 - A1 (industrial standard)

  • Page 11: Sensor Weight Guide

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Technical data Sensor weight guide (solids measurement) Sensor weight Application Note Fits through mounting hole * Material Material Angle of Max. Thread Flange densitiy consistence repose process 11/2"...
  • Page 12 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Options Window in lid and Enables to see the display through the closed lid and external start button to start a measurement without opening the lid. Drawing see page 5 Material of the window: break-proof glass.
  • Page 13 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Mounting General Safety Instructions Process pressure Improper installation may result in loss of process pressure. Chemical resistance Materials of construction are chosen based on their chemical compatibility (or inertness) for general against the medium purposes.
  • Page 14 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Mounting Measurement during Filling of the silo while measuring might cover the sensor weight with bulk material. Measurements filling of the silo during filling are possible, if there is enough distance to the infeed, so that no material can fall on the sensor weight.
  • Page 15 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Electrical installation General Safety Instructions Handling In case of improper handling or handling malpractice, the electric safety of the device cannot be guaranteed. Installation regulations The local regulations or VDE 0100 (Regulations of German Electrotechnical Engineers) must be observed.
  • Page 16 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Additional Safety Instructions for Hazardous Locations External equipotential bonding terminal Connect to equipotential bonding of the plant Field wiring A strain relief must be provided for the field wiring cables, if the device is installed with the factory provided cable glands.
  • Page 17 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Electrical installation Terminal location Display 0/4-20 mA Start input Full detector input Modbus RTU Profibus DP Relais Internal fuse AC version: El. counting pulse 1.25 A, slow, HBC, 250 V DC version: Power 4 A, slow, HBC, 250 V...
  • Page 18 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Electrical installation Signal input: 0.14 .. 2.5 mm Full detector (AWG 26 .. 14) Signal description: See page 20 Signal output: * CAUTION: 0/4-20 mA active, isolated * If connecting to a PLC with isolated (floating) 4-20 mA input, the "-"...
  • Page 19 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Electrical installation Modbus network Profibus DP network Wiring according to Wiring according to Profibus DP standards Modbus standards Setting Biasing and Termination Resistor Version with Jumper Biasing OFF* Termination OFF*...
  • Page 20 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Signal overview Signal input / output Signal input: • Floating contact (terminal 24, 25) or Start of measurement • 24 V DC voltage (terminal 25, 27), current consumption approx. 25 mA, observe the polarity. Duration of starting signal: 0.7 to 5 s The contact must be closed or the 24 V signal must be present to start.
  • Page 21 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Signal overview Relay 4 - set to "Upper stop postition" The signal allows the user to determine whether the measurement has come to its end. In this case the sensor weight is in its upper stop position, relay contacts are closed.

  • Page 22: Quickset Menu

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Quickset menu The Quickset menu is used for fast and easy start-up of the system. If the unit is working in normal operation (measurement mode), the SETUP button brings up the Quickset menu. *Deutsch English Measurement mode...
  • Page 23 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Max. move distance M Ensures that the weight does not enter into the silo see page outlet. 4 - 6 Silo height H Definition of 0% level output. Note: If the maximum move distance M is smaller than the silo height H, the measured value will always be more than 0%.
  • Page 24 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Programming buttons Continues with next adjustment item Continues with measurement display after parameter adjustment Starts measurement Cancels a Failure or Maintenance message Increases the value to be adjusted Decreases the value to be adjusted Runtime messages During measurement mode, following runtime indications are given:...

  • Page 25: Output Adjustment Menu

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Output Adjustment menu The Output Adjustment menu is used for setting the 0/4-20mA, relais and internal timer *4-20mA Current output 0-20mA mode 20-4mA 20-0mA *0mA 3.6mA *Failure Maintenance Current error...
  • Page 26 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Current output mode 100% Current output at level Setting 100% 4-20 mA 4 mA 20 mA 0-20 mA 0 mA 20 mA 20-4 mA 20 mA 4 mA 20-0 mA 20 mA...
  • Page 27 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Relay 3 Selects, if relay 3 shall indicate Failure, Maintenance or both situations. Failure/ Maintenance Mode Mode EN * Present present * factory provided Relay 4 Selects, if relay 4 shall indicate "Upper stop position"...

  • Page 28: Diagnostics Menu

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Diagnostics menu The Diagnostics menu is used to diagnostics the unit status and for manual motor driving mode Firmware version Sensor weight moves up or Manual motor control down while pressing Scrolls...
  • Page 29 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Firmware version States the firmware version of the unit. Manual motor control The motor moves the sensor weight upwards while the "ARROW UP" button is beeing pushed. The motor moves the sensor weight downwards while the "ARROW DOWN"...

  • Page 30: Communication Menu

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Communication menu The Communication menu is used for setting parameters of Modbus RTU and Profibus DP *Modbus RTU Protocol Profibus DP 1 .. 247 Address (*31) 1,200 2,400 4,800...

  • Page 31: Modbus Register

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Modbus Register The following registers describe the communication via Modbus. CAUTION Writing to the registers different from what is stated will cause a miss function of the unit Register Register Register...
  • Page 32 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Programming Explanation: Blocked: No measurement can be started. Ready: A new measurement can be started. Measurement valid: Indicates a valid measurement. Measurement not valid: Indicates a maintenance condition (details see M_MAINTENANCE) Busy: A measurement is actually running.

  • Page 33: Interface Measurement

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Commissioning: Interface measurement General items Applications Measurement of solids in water like mud, sand, bed ash, sediment, stones etc. Rope version: The material surface can be soft/ muddy or compact. Sensitivity adjustment possible. Tape version: The material surface must be compact (the sensor weight cannot sink in).

  • Page 34: General Items

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Maintenance General items Opening the lid (cover) Before opening the lid for maintenance reasons observe following items: • Do not remove the lid while circuits are alive. •...

  • Page 35: Diagnostics Maintenance

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Maintenance Diagnostics: Maintenance Result is an indication for the user with still valid measurement. Red LED is blinking. Relay 4 indicates Maintenance (programmable). The signal enables a preventive maintenance. Evaluating the signal can help to avoid losing the sensor weight inside the silo. If Maintenance was indicated, the measurement process can be continued.
  • Page 36 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Maintenance Rope/ Tape lifetime The expected life time (measurement cycles) for the rope/ tape is: Rope version: approx. 200,000 Tape version: approx. 500,000 Note: These values refer to lifetime tests under the following conditions: No excessive material influence.

  • Page 37: Diagnostics Failure

    Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Maintenance Diagnostics: Failure Result is an invalid measurement. Red LED is on. Relay 3 indicates Failure. The signal indicates critical situations. Evaluating the signal can help to avoid losing the sensor weight inside the silo. If Failure is indicated, the unit must be checked on site.
  • Page 38 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Notes for use in Hazardous Locations Zone classification Category useable in zone 20, 21, 22 * in case of conductive dust, 21, 22 additional requirements for 3 D* installation are necessary.
  • Page 39 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Notes for use in Hazardous Locations Maximum Surface Temperature The temperature marking on the name plate wrefers to the instruction manual. On the following table the relevant temperature ratings are shown. The maximum surface temperature and the temperature class refer to the warmest area outside on the unit which can occur in failure case (according to EX definition).
  • Page 40 Nivobob Continuous level measuring system ® NB 3000 Technical information / Instruction manual Disposal The product consists of materials which can be recycled, details of the used materials see chapter "Technical data - mechanical data". Recycling must be done by a specialised recycling company. Since the product is not subject to the WEEE directive 2002/96/ EG, it is not permitted to bring it to a public recycling station.

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