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Continuous level measuring system

NB 4000

Technical information / Instruction manual

page G

Table of contents

Page

Safety notes / Technical support

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Introduction

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Dimensions and materials

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Options / Accessories

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Technical data

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Mounting

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Mounting with aiming flange

G10

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Electrical installation

G11

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Signal overview

G13

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Programming

G15

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Rope / tape / motor lifetime

G20

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Diagnostics

G21

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Notes for use in Hazardous Locations

G22

Subject to technical change.

We assume no liability for typing errors.

All dimensions in mm (inches).

Different variations to those specified are

possible.
Please contact our technical consultants.

Nivobob

NB 4000

gi010413

Содержание Nivobob NB 4000

Страница 1: ...unting G9 Mounting with aiming flange G10 Electrical installation G11 Signal overview G13 Programming G15 Rope tape motor lifetime G20 Diagnostics G21 Notes for use in Hazardous Locations G22 Subject to technical change We assume no liability for typing errors All dimensions in mm inches Different variations to those specified are possible Please contact our technical consultants Nivobob 1 2 3 4 5...

Страница 2: ...o 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 This symbol is used when there is no corresponding caution symbol on the product A failure to observe the necessary precautions can result in considerable material damage CAUTION Safety symbols In manual and on product Description CA...

Страница 3: ...led measurement Diagnostics possibilities Output 4 20mA Two programmable Relais can be used as Counting pulse output or as Failure Upper stop position Measurement start with external signal or integrated timer Function The Nivobob NB 4000 is mounted on the top of the silo A sensor weight is driven down into the silo It is mounted at the end of a rope or tape which is wound on a motor driven roller...

Страница 4: ...eight in upper stop position see next page A Length of socket pipe 100mm 3 9 Optional 200mm 7 9 500mm 19 7 1000mm 39 4 Flanges fitting to DN100 PN16 4 150lbs Lk ø180 190 5mm 7 1 7 5 slot d2 ø19mm 0 75 fitting to 2 3 150lbs Lk ø120 7 152 4mm 4 75 6 0 slot d2 ø19mm 0 75 Rope ø1 25mm 0 49 Tape 12x0 2mm 0 47x0 008 To be screwed directly to the silo roof 0 50 adjustable Including screws nuts and sealin...

Страница 5: ...canvas For material densitiy 20g l 1 2lb ft3 Fits through 1 1 2 mounting hole PVC Stainless steel Material 1 4305 304 Fixing elements between tape and sensor weight aluminium 1 4305 304 All sensor weights 1 6 kg 3 5 lbs 380x380mm 15x15 Material 1 4310 301 PA canvas For material densitiy 20g l 1 2lb ft3 Fits through 1 1 2 mounting hole Folding cover PVC Stainless steel Material 1 4305 304 Nivobob 1...

Страница 6: ...protection cover is recommended It protects the device from all atmospheric influences such as rain water condensation water excessively high temperatures excessively low temperatures in winter Material PE weather and temperature stable For use in Hazardous Locations only permitted for Zone 22 or Division 2 Accessories Mounting kits Material for mounting the unit on a flange Sealings screws and wa...

Страница 7: ...Relais Optional 1x Relais SPST and 1x Relais DPDT max 250V AC 2A 500VA non inductive Accuracy of measurement Output Measuring range Accuracy Rope version Accuracy Tape version Counting pulse 10m 33ft 2 pulses 1 pulse 20m 66ft 3 pulses 2 pulses 30m 100ft 5 pulses 3 pulses 4 20mA 30m 100ft 1 5 of measured length 1 of measured length Display LCD Indication light Status by built in LED Power On Relay ...

Страница 8: ...measuring height 10m 33ft 6min measuring height 20m 66ft 12min measuring height 30m 98ft 18min Rope tape operating time see page G19 Max permitted tractive force ca 800N Relative humidity 0 100 suitable for outdoor Altitude max 2000m 6 562ft Technical data Approvals Hazardous Locations ATEX II 1 2 D zone 20 21 FM Class II III Div 1 Gr E G General purpose CE EN 61010 1 FM General purpose EMC EN 613...

Страница 9: ...of the sensor weight at upper stop position dimensions see page G4 Measurement during filling of the silo Filling of the silo while measuring might cover the sensor weight with bulk material Measurements during filling are possible if there is enough distance to the infeed so that no material can fall on the sensor weight Sealing A rubber seal must be used to tighten the thread or flange Close bot...

Страница 10: ... ensure that swarfs or any parts can not fall into the silo 3 Drill ten holes A with a 9 5mm driller Use a cut off grinder to grind out the shape B Before doing this drill a bigger hole in the middle of B where you can hold the cutted plate to avoid that it falls into the silo when it gets loose 4 Insert the clamping plate from inside the silo and fix with two screws C 5 Apply the rubber sealing f...

Страница 11: ...wirings must have insulation suitable for at least 250V AC The temperature rating must be at least 80 C 176 F Relay protection Provide protection for relay contacts to protect the device against inductive load surges Protection against static charging The housing of the unit must be grounded to avoid static charging of the unit This is particularly important for applications with pneumatic conveyi...

Страница 12: ...rminal location Display Protective conductor terminal Power supply and Signal input output Power supply Signal input Start of measurement 230V or 115V 50 60Hz 20 28V DC AC or DC supply depending on ordered version DC version AC version Start contact Start 24V alternative Measurement interruption in case of filling If used remove factory provided connection Internal terminals for motor and heater N...

Страница 13: ... measurement Signal output 4 20mA Programmable to indicate a level or a volume signal The output is updated when the sensor weight touches the surface of the bulk good It stays until the next measurement is done Signal output Relais optional Relais can be setted as shown in the following table Relay 1 Relay 2 Factory settings Failure Upper stop position Programmable Reset pulse Counting pulse Rela...

Страница 14: ...t is used to reset the connected evaluation device counter PLC Counting pulse terminal 17 and 18 Relay 2 The counting pulse communicates the measured value to the connected evaluation device During the downward movement of the sensor weight this pulse is generated according to the following table Note If the used digital counter or PLC requires a common ground for reset and counting pulse the term...

Страница 15: ...t output indicates material volume 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 Press to return to measurement mode Measurement mode 0 0m 0 0ft 3 Max move distance M 4 Silo height H 5 Air distance A 6 Cone height C 1 Language Deutsch English Francais Russian Italian 2 Unit...

Страница 16: ... SETUP button Increases the value to be adjusted Decreases the value to be adjusted Factory settings Runtime messages During measurement mode following runtime indications are given Upper Stop Position is reached Motor is moving the sensor weight downwards resp upwards fast mode Motor is moving in slow mode shortly after motor start and before Upper Stop Position is reached Measurement interruptio...

Страница 17: ...sor weight moves up or down while pressing Actual current 10mA d Relay Upper stop position Failure Pulse Reset Advanced menu use only if necessary With the advanced menue it is possible to set the outputs and to display the actual state of the unit Entering the advanced menue If the unit is working in normal operation measurement mode press both arrow buttons together for approx 2 seconds h Cycles...

Страница 18: ...s if Relais shall indicate Upper stop position and Failure or work as Counting Reset pulse output Details see Signal Overview on page G12 13 Factory provided Press to return to measurement mode j Run time l Inverted Air distance m Motor value No Yes Value Programming i Cycles reset k Run time reset No Yes No Yes continuation 100 0 Setting Current output at level 0 100 4 20 mA 20 4 mA 4 mA 20 mA 20...

Страница 19: ... multimeter Cycles Indicates how many measurement cycles have been performed up to now Cycles reset Can be done after a rope tape change if the service interval message F16 was not yet present It sets the internal counter to zero to have the full amount of measurement cycles until the next service interval message will appear Note After a F16 message is reset with the START RESET button the rope t...

Страница 20: ... message is displayed at 90 of the expected lifetime to provide some safety For further information see message F16 See figure on right hand for the operating time depending on the measurement cycles per day For applications with adverse conditions it is recommended to change the rope tape more frequently Motor lifetime The expected life time run time for the motor is approx 3 500 hours The failur...

Страница 21: ... lifetime The measurement cannot be restarted Change rope or tape roller do not just cut the rope or tape F17 Service interval motor The actual run time is 90 of the motor lifetime The measurement cannot be restarted Change motor Failure Result is an invalid measurement Red LED is on Relay 2 indicates Failure if selected The signal indicates critical situations Evaluating the signal can help to av...

Страница 22: ...ble in zone 1 D 20 21 22 2 D 21 22 3 D 22 Permitted zones categories for mounting in partition wall Maximum Surface Temperature The maximum surface temperature refer to the warmest area outside on the unit which can occur in failure case according to Ex definition Static discharge of the material surface It must be ensured that no static discharge can occur when the grounded metal sensor weight or...

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