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Electromechanical lot system
NivoBob®
Continuous level measurement
Solids
bulk weight > 20 g/l (> 1.2 lbs/ft3)
The electromechanical plumb bob sensors NivoBob® NB 3100 is used for continuous level measurement in bulk storage silos of various applications. The simple electromechanical measuring method makes it a reliable all-rounder, approved in the practical use in almost all bulk solids. Especially in granulates or bulk solids with a low DK value, the NB 3100 works perfectly.
Durable, simple and reliable measuring principle up to 30 m measuring range
Works in almost all bulk granulates
Very sensitive due to very light sensing weight
More Information
Measurement principle
Electromechanical Lot-Sensor
Measuring task
Continuous level measurement
Versions
Rope version Version with increased corrosion resistance
Medium
Solids
Mounting position
Ambient temperature
-40°C … +60°C (-40°F … +140°F)
Process temperature
-40°C ... +250°C (-40°F … +482°F)
Process pressure
-0,5 bar … +1,7 bar (-7.3 psi … +25 psi)
Minimum sensitivity
> 20 g/l (> 1.2 lbs/ft3)
Housing type
dual chamber
Housing material
Aluminum
Housing protection rating
IP66, Type 4
Threaded connection
Flange connection
Hygienic fittings
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Wetted materials
Aluminium Stainless steel 1.4305 (303) Stainless steel 1.4301 (304) Stainless steel 1.4401 (316) PVC PA PP
Accuracy
0.5% of max. range
Mechanical load
standard motor: 0,8 kN brushless motor: 1 kN
Min. immersion length
366 mm (14.44")
Max. immersion length
1,8 m (5.99')
Power supply
Signal output
0/4...20 mA Relay Modbus RTU Profibus DP
Approvals
CE General purpose ATEX TR-CU FM
Ex markings
Ex t
Hygienic / Pharma
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Ship approval
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Overfill protection
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SIL qualification
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Further approvals
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Adjustment possibility
LCD Display with push buttons
Optical indicator
LED + Display
Features
self diagnostics menu-driven quick start volume table
ATEX
European approval for use in explosive Environments (ATmosphère EXplosible)
CE
European manufacturer approval for use in non-explosive Environments (European community)
FM Ex & General purpose
North American approval for use in explosive and non-explosive Environments (Factory Mutual)
TR-CU / EAC-Ex
Russian declaration of conformity
TR-CU-GP Solids over 50V
Russian declaration of conformity
TR-CU-GP Solids up to 50V
TR-CU-GP Solids up to 50V
Russian declaration of conformity
UK
UK-Declaration of Conformity
UKEX
UK approval for use in potentially explosive atmospheres
Product Configuration - Technical Notes
Product Configuration - Technical Notes
Product information sheet
Product information sheet
Spare Parts and Accessories
Spare Parts and Accessories
Do you have a specific measurement challenge?
You can search our pool of successfully solved level measurement solutions in our application database
Level Measurement Solutions when iron gets too hot to handle
Industry: Mining / Metal
Level Measurement Solutions when iron gets too hot to handle
Read Application Story
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Start your individual sensor configuration here
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Your configuration
Electromechanical lot system
NivoBob®
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Type:
[C] NB 3100-Rope 30 m (98.4 ft)
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