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UWT GmbH
NivoBob® 3000

NivoBob® 3000

Product catalog summary

Safety Notes and Technical Support
Installation, maintenance, and commissioning of the NB 3000 must be performed by qualified personnel. The product should be used as outlined in the manual, with attention to warnings indicating potential risks of electric shock or material damage. For technical support, contact UWT GmbH or your local supplier.

Introduction
The NivoBob® NB 3000 is an electromechanical level measuring instrument designed for continuous measurement in silos, hoppers, or tanks. It is suitable for various industries, including chemistry, food, cement, mining, and plastics. The device is independent of bulk material properties and offers accurate measurements with simple installation and low maintenance.

Dimensions
The manual provides detailed dimensions for different versions of the NB 3000, including flange and thread versions. Materials used include aluminum and stainless steel, with options for increased corrosion resistance.

Technical Data
Electrical Data: The NB 3000 supports both AC and DC power supplies, with various signal outputs including 0/4-20 mA, relay, and Modbus RTU. It features a microprocessor-controlled measurement system with comprehensive diagnostics.
Mechanical Data: The device has an ingress protection rating of IP66 and supports various process connections. It offers a measuring range of up to 50 meters and operates at a sound level of 50 dBA.

Operating Conditions
The NB 3000 can handle process overpressure ranging from -0.3 to +0.3 bar, with extended ranges available.

Options and Accessories
Optional features include a window in the lid, an external start button, and a compressed air connector.

Mounting and Installation
Instructions for mounting and electrical installation are provided, emphasizing the importance of proper setup to ensure accurate measurements.

Programming and Commissioning
The manual includes a Quickset menu for programming, output adjustment, diagnostics, and communication settings, including Modbus register configurations.

Maintenance
Regular maintenance is recommended, with diagnostics available to ensure the device operates correctly. The manual outlines procedures for diagnostics maintenance and failure.

Hazardous Locations and Disposal
The NB 3000 is approved for use in hazardous locations, and guidelines for disposal are provided to ensure compliance with environmental standards.

Specifications
The document outlines the specifications for a continuous level measuring system, NB 3000, which is suitable for various certifications including CE, UKCA, ATEX, UKEX, and TR-CU. The pressure range is optional for FM general purpose, with a process temperature range of -40°C to 250°C and ambient temperature range of -20°C to 60°C. Ventilation is not required, and the system is suitable for outdoor use with a relative humidity of 0-100% and a maximum altitude of 2,000 meters.

Procedures
The document provides detailed procedures for transport, storage, and installation. Transport temperature should be between -40°C and 80°C, and products must be stored in a dry, clean place. Installation requires careful consideration of mounting location and vibration absorption. Electrical installation must adhere to local regulations, with specific instructions for wiring, power supply, and protection against static charging.

Norms and Standards
The system complies with various standards including EMC EN 61326 - A1 and RoHS directive 2011/65/EU. It is approved for hazardous locations under ATEX, UKEX, FM, and TR-CU standards.

Recommendations
For outdoor use, a weather protection cover is recommended to protect against atmospheric influences. The document advises on the use of rubber seals for flanges and proper grounding to avoid static charging.

Technical Data
The document includes technical data on sensor weight, process temperature, and mounting instructions. It specifies the minimum time between measuring starts based on height and provides guidelines for the maximum permitted tractive force for tape and rope versions.

Electrical Installation
Detailed instructions are provided for electrical installation, including handling, installation regulations, and wiring diagrams. The document emphasizes the importance of using appropriate cable glands and conduit systems, and provides specifications for signal inputs and outputs.

Safety Instructions
General and additional safety instructions for hazardous locations are provided, including the importance of avoiding sparks and ensuring proper movement of the sensor weight. The document also highlights the need for proper sealing and protection against static charging.

Signal Output and Relay Settings
The system uses relays for various functions such as counting pulses, reset pulses, failure indication, and maintenance alerts. Relay 1 and 2 can be set for counting/reset pulses or as limit switches. Relay 3 indicates failure or maintenance, while Relay 4 can indicate the upper stop position or maintenance.

Diagnostics
The diagnostics menu allows users to check the unit status, control the motor manually, and view failure/maintenance history. It includes features like rope/tape maintenance, total run time, and motor maintenance checks.

Programming
The system offers a Quickset menu for easy setup and advanced menus for detailed configuration. Users can adjust output settings, relay functions, and timer intervals. The programming section also covers current output modes and error indications.

Communication
The communication menu is used to set parameters for Modbus RTU and Profibus DP protocols, including protocol selection, address, and baudrate settings.

Key Parameters
The document highlights important parameters such as maximum move distance, silo height, air distance, and cone height, which influence measurement outputs.

LED Indicators
LED status indicators provide visual feedback for power, failure, maintenance, and relay status.

Programming
The manual outlines various Modbus registers used for programming the device. Key registers include M_START for initiating measurements, M_DISTANCE for actual measured distance, and M_VOLUME for measured volume. The M_STATUS register indicates the unit's functional status, such as 'Blocked', 'Ready', 'Busy', or 'Failure present'.

Setup
The setup section describes the configuration of language, unit of measurement, maximum move distance, silo height, air distance, and cone height. It also includes timer settings for automatic measurement initiation.

Measurement
The document explains the measurement process, including the calculation of total measured cycles and motor run time. It provides details on the expected lifetime of the rope/tape and motor, with maintenance messages triggered at 70% and failure messages at 90% of their expected lifetimes.

Maintenance
Maintenance procedures include checking for mechanical damage, ensuring tight sealing, and cleaning the unit without allowing cleaning agents to enter. The manual emphasizes the importance of regular checks to ensure safety and functionality.

Diagnostics
The diagnostics section provides codes for maintenance and failure, such as M10 for deflection pulley issues and F10 for motor defects. It describes the actions to take when these codes are displayed, including checking connections and replacing components.

Recommendations
The manual recommends regular maintenance and timely replacement of components to prevent failures. It also advises on sensitivity adjustments for different material surfaces and the importance of proper setup to avoid measurement errors.

Specifications
The NivoBob® NB 3000 is designed for use in various zones classified under hazardous locations, including Zones 20, 21, and 22. It is approved for atmospheric pressure conditions as per ATEX directive 2014_34_EU, with specific temperature and pressure guidelines outlined for safe operation.

Installation and Safety Procedures
The manual emphasizes the importance of avoiding electrostatic charges during installation. It provides guidelines for mounting the device in partition walls and specifies the equipment protection levels (EPL) for different zones. The document also highlights the need for additional requirements when dealing with conductive dust.

Temperature Ratings
The manual includes detailed tables showing maximum ambient, process, and surface temperatures for different temperature classes (T4, T3C, T3B, etc.). These ratings are crucial for ensuring the device operates safely under specified conditions.

Static Discharge Considerations
The document warns against static discharge when the grounded metal sensor weight or rope/tape contacts the bulk material surface. It suggests using a version with a plastic sensor weight and additional plastic rope insulation to maintain a safe distance from the material surface.

Disposal
The product is made from recyclable materials, and recycling should be conducted by a specialized company. Details of the materials used are provided in the technical data section.

Catalog excerpts

Continuous level measuring system NB 3000 Technical information / Instruction manual Page Safety notes/ Technical support 2 --------------------------------------------------------------------------------------------------------------------------- Technical data Electrical Data 7 Mechanical Data 8 Operating conditions 9 Transport and Storage 9 Approvals 10 Sensor weight guide 11 --------------------------------------------------------------------------------------------------------------------------- Electrical installation 15 --------------------------------------------------------------------------------------------------------------------------Signal overview 20 --------------------------------------------------------------------------------------------------------------------------- Programming Quickset menu 22 Output adjustment menu 25 Diagnostics menu 28 Communication menu 30 Modbus register 31 --------------------------------------------------------------------------------------------------------------------------Commissioning Interface measurement 33 --------------------------------------------------------------------------------------------------------------------------Maintenance General items 34 Diagnostics Maintenance 35 Diagnostics Failure 37 --------------------------------------------------------------------------------------------------------------------------Notes for use in Hazardous Locations Subject to technical change. We assume no liability for typing errors. Different variations to those specified are possible. Please contact our technical consultants.

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Continuous level measuring system NB 3000 Technical information / Instruction manual Safety notes / Technical support Installation, maintenance and commissioning must be carried out only by qualified technical personnel. The product must be used only in the manner outlined in this instruction manual. 3 Special attention must be paid to warnings and notes as follows: WARNING Relates to a caution symbol on the product and means, that a failure to observe the necessary precautions can result in death, serious injury and/ or considerable material damage. Relates to a caution symbol on the product:...

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Continuous level measuring system NB 3000 Technical information / Instruction manual The NivoBob® NB 3000 is an electromechanic level measuring instrument for continuous measuring of level or volumes in silos, hoppers or tanks. Applications • Powder, granulate, small or coarse bulk goods • Interface measurement (solids in water) Available for industries such as • Chemistry • Food • Cement • Mining • Plastics • others Features Process • Suitable for most types of bulk goods • Independent of bulk material properties, such as: Dielectricity and conductivity of the bulk good Dusty atmosphere in the...

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Continuous level measuring system NB 3000 Technical information / Instruction manual Basic type Flange version DN100/ 4" Thread version Flange version 2"/ 3" Housing extension Housing extension Flange Socket pipe Flange version, bottom view Rope/ tape Rope/ tape Dimensions X = Length to bottom of sensor weight (in upper stop position): see next page 8 A = Length of socket pipe 200 mm (7.9") Optional 500 mm (19.7")/ 1,000 mm (39.4") B = Diameter of socket pipe Rope version with Flange DN100/ 4" C = Housing extension Flange version DN100/ 4" Materials Housing outside Aluminium, powder coated Housing...

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Continuous level measuring system NB 3000 Technical information / Instruction manual Window in lid and outside start button Outside start button Sensor weights Solids measurement: Rope version All weights ca. 1,0 kg (2.2 lbs) Stainless steel Material: 1.4305 (303) ø81 mm (ø3.2" ) X = 137 mm (5.4") Material: PVC ø81 mm (ø3.2") X = 137 mm (5.4") Pin: 130 mm (5.1") Material: PVC (pin POM) Version with Flange DN100/ 4" ø75 mm (ø3.0") X = 25 mm (1.0") Pin: 130 mm (5.1") Folding cover ø190 mm (ø7.5" ) X = 175 mm (6.9") Material: Float PP, Cone: aluminium ø95 mm (ø3.7") X = 460 mm (18.1") Material:...

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Continuous level measuring system NB 3000 Technical information / Instruction manual Solids measurement: Tape version All weights ca. 2.1 kg (4.6 lbs) Stainless steel Folding cover Aluminium Float Interface measurement: Rope version Interface measurement: Tape version including additional disks to adjust to the application ø81 mm (ø3.2" ) X = 82 mm (3.22") Material: PVC with plastic/ metal disks

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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 150 VA (including internal heater (80 W)) DC version: One unit: 150 W (with or without internal heater) * Further units which are connected to the same power supply: 25 W per unit (without internal heater, motor off) ** 50 W per unit (without internal heater, motor running) 80 W per unit (with internal heater, supply voltage 20 V DC) 100 W per unit (with internal...

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Continuous level measuring system NB 3000 Technical information / Instruction manual Technical data Non-volatile (no backup battery required) > 10 years data retention Connection terminals 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 Blindplug: 2x NPT 1/2" Conduit ANSI B1.20.1: 1x NPT 3/4" and 2x NPT 1/2" Clamping range (diameter) of the factory provided cable glands: M20 x 1.5: 6 .. 12 mm (0.24 .. 0.47") M25 x 1.5: 8 .. 17 mm (0.31 .. 0.67") Extension cables for Profibus DP/ Modbus Use common recommended cables Power supply...

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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 + UKCA + ATEX + UKEX + TR-CU -0.5 .. + 1.1 bar (-7.3 .. +16 psi) optional for FM general purpose Process temperature Ambient temperature -20°C .. +60°C (-4 .. +140°F) -40°C .. +60°C (-40 .. +140°F) CE, UKCA, FM General Purpose with internal heater -40°C .. +60°C (-40 .. +140°F) ATEX, UKEX, FM Class II, TR-CU on request possible max. +40°C (104°F) Version with Process...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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