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Operating Instructions 

for 

Vibrating Level Switches 

 

Model: NVI 

 

Summary of Contents for NVI

Page 1: ...Operating Instructions for Vibrating Level Switches Model NVI...

Page 2: ...ensity Sensitivity Adjustment Switch A 8 8 2 High Low Fail Safe Mode Switch C 8 8 3 Time Delay Switch B 8 9 Technical Information 9 10 Derating Diagram 10 11 Order Codes 10 12 Maintenance 10 13 Storag...

Page 3: ...3 Instrument Inspection Instruments are inspected before shipping and sent out in perfect condition Should damage to a device be visible we recommend a thorough inspection of the delivery packaging I...

Page 4: ...andle the device with great care especially the sensing probe A larger impact on the sensing probe may ruin its resonance system Probes exposed to falling material or mechanical loads should be protec...

Page 5: ...NVI NVI K04 0517 page 5 Limits for bending or pulling force and torque should be considered R_H R_R R_L R_K R_C F 500 N M 100 Nm M 100 Nm F 45 kN Powder Granulate...

Page 6: ...eater than the existing angle of repose or even vertically to detect maximum level This is necessary in order to prevent too much powder clinging to the vibration rod and hindering vibration and self...

Page 7: ...1 NO C NC PE N L1 PE N L1 1 2 3 4 5 6 250VAC 8A AC1 A B C Status LED Relay output version Attention Incorrect wiring will lead to damage of the unit s electronics 7 2 Operation Diagram Power Probe Fai...

Page 8: ...t sensitivity of detection HIGH position recommended for thick and heavy materials with density over 0 1 kg dm represents vibration with high energy and amplitude and small sensitivity of detection 8...

Page 9: ...t temperature 30 C 60 C Maximum pressure 25 bar NVI 1 2 3 4 6 bar NVI 5 Minimum density of medium 0 05 kg l Max grain size 10 mm Max load Version Standard Pipe extended Cable extended High limit switc...

Page 10: ...pe extended 4 pipe extended high temperature 5 cable extended Mention desired length in clear text in mm 12 Maintenance Series NVI devices require no regular maintenance You may need to remove product...

Page 11: ...rried out in the manufacturer s workshop The costs of demounting installation and transportation shall be borne by the purchaser All rights to claims under guarantee for faults caused by incorrect ins...

Page 12: ...2013 Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements EN 61326 2 3 2013 Electrical equipment for measurement control and laboratory use EMC...

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