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Vibrating Wire Sensor Node

Ať už jde o sledování deformací tunelu při jeho opravách, sledování krátkodobého nebo dlouhodobého sklonu kolejového lůžka změn jeho výškových poměrů, sesuvy nebo nasycení půdy vodou, stav mostu, pohyb budov nebo opěrných zdí, zatížení, namáhání nebo náklon, systémy Senceive jsou určeny pro uživatelsky snadné, bezdrátové a naprosto bezporuchové nasazení.

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Pro dostupnost a cenu zboží nás kontaktujte - info@geoobchod.cz

Výrobce:
Kód produktu: 658849
Expedice: 5 dní

The Vibrating Wire Sensor interface range brings a wide variety of vibrating wire sensors into our systems. It is a highly integrated system which is capable of exciting and sampling vibrating wire sensors and reporting measurements through Senceive’s wireless communications network to a Gateway.

Examples of the sensors supported:

  • Piezometers
  • Strain Gauges
  • Load & Pressure Cells
  • In Place Inclinometers
  • External Temperature
  • Extensometers
  • Tiltmeters
  • Crack Gauges
  • Soil Moisture Sensors

Key benefits

  • High performance, easy to connect multichannel connectors
  • Waterproof, robust connectors for simple installation
  • Resolution of 0.001 Hz and repeatability of ±0.02 Hz
  • Integrated long life battery
  • 12-15 years’ battery life, including when acting as a relay node within the mesh communications network
  • Integrated temperature sensor
  • Versatile mounting options
  • Waterproof to IP66 / IP67 / IP68
  • Firmware is remotely upgradeable over the air via the gateway reducing costly site visits

Channel Combinations

ModelPortsApplications
 
FM3N-VW11 1 VW and 1 Thermistor Channel Single sensor
FM3N-VW41 A: 1 VW and 1 Thermistor Channel

 

B: 1 VW and 1 Thermistor Channel

C: 1 VW and 1 Thermistor Channel

D: 1 VW and 1 Thermistor Channel

Four strain gauges in an array

 

2+ sensors in close proximity

FM3N-VW17 7 VW and 1 Thermistor Channel Single load cell

Physical Specifications

ParameterFM3N-VW11 / VW17FM3N-VW41
 
Dimensions excluding antenna and vent 90 x 90 x 60 mm 90 x 130 x 50 mm
Dimensions excluding antenna 90 x 96 x 60 mm 90 x 136 x 50 mm
Total Mass 0.57 kg 0.75 kg
Housing Material Die cast aluminium Die cast aluminium
Protection
(BS EN 60529: 1992 + A2: 2013)
IP66 / IP67
IP68 at 1m for 24 hours
IP66 / IP67
IP68 at 1m for 24 hours
Mounting Options Clearance holes for M4 socket head screw in bottom M4 blind holes in side Clearance holes for M4 socket head screw in bottom
Operating Temperature Range -40°C to +85°C  

FlatMesh Radio Specifications

ParameterValue
* Consult with Senceive for your application
Communication Type Proprietary FlatMesh v3 Mesh Networking Protocols IEEE 802.15.4 compliant
Frequency Band 2400 – 2485 MHz ISM Band
Maximum Transmit Power (EN 300 328 v1.8.1) 6.5dBm
Maximum Permitted Antenna Gain 2.2dBi
Range Up to 300m depending on the environment and fitted antenna *

GeoWAN Radio Specifications

ParameterValue
* Consult with Senceive for your application
Communication Type Star Topology
Frequency Band 863MHz – 928MHz ISM Band
Maximum Transmit Power 20dBm (actual transmit power depends on geography)
Range Up to 15km depending on the environment and antenna*
Maximum Reporting Frequency 30 Seconds
Sample Storage Stores the latest 36 days of samples at a reporting interval of 30 minutes

Vibrating Wire Interface

ParameterFM3N-VW11 / VW17FM3N-VW41
 
Connector M12 Female
5-pole A-coded
Screw-in Type
M12 Female
12-pole A-coded
Screw-in Type
Frequency Resolution 0.001 Hz  
Frequency Repeatability ±0.02 Hz  
Frequency Range 200-6500Hz  
Stimulus Type Swept Sine Wave, typ. 6V peak to peak  
Thermistor Type 3kΩ NTC  
Temperature Resolution 0.05  
Temperature Accuracy ±0.1°C  
Temperature Range -40°C to +85°C  

Internal Battery

ParameterFM3N-VW11 / VW17FM3N-VW41
*consult with Senceive for your application
Battery Type Lithium Thionyl Chloride  
Nominal Voltage 3.6V  
Nominal Capacity 19000mAh 34400mAh
Typical Battery Life 12-15 years at 20/30 minute reporting intervals, including when acting as a relay node*  

Certifications

  • Tested to conformity with all the essential requirements of R&TTE Directive 1999/5/EC and RoHS Directive 2011/65/EU
  • Network Rail Acceptance PA05/04146
  • London Underground Approved Product ID 2073

Ordering Information and Accessories

ModelDescription
 
FM3N-VW11
LR3N-VW11
FlatMesh 3 Vibrating Wire Sensor Node (1x 1-wire port)
GeoWAN Vibrating Wire Sensor Node (1x 1-wire port)
FM3N-VW41 FlatMesh 3 Vibrating Wire Sensor Node (4x 1-wire port)
FM3N-VW17 FlatMesh 3 Vibrating Wire Sensor Node (1x 7-wire port)
FS-VWCON11 Sensor Connector for 1-wire sensor

 

Screw terminals for easy installation

Sensor cable outside diameter 5.0-8.0 mm

Suits FM3N-VW11 or FM3N-VW41

FS-VWTRM17 Terminal Block and Cable for multi-wire sensor
Screw terminals for easy installation
Suits FM3N-VW17
FT-VW-TH11 Test Harness for 1-wire sensors

 

Mates to FS-VWCON11 for easy connection to hand-held vibrating wire readout device (not supplied)

FT-VW-TH17 Test Harness for multi-wire sensors
Mates to FS-VWTRM17 for easy connection to hand-held vibrating wire readout device (not supplied)
FA-FM-WPS Waterproof straight antenna

 

Overall node height

– 168mm (approx) when fitted to FM3N-VW11 or FM3N-VW17

– 158mm (approx) when fitted to FM3N-VW41

Maximum gain +1.1dBi

FA-FM-LPS Waterproof low profile straight antenna
Minimum overall node height, perfect for track bed and tight spots
Overall node height;

 

  • 92mm (approx) when fitted
    Maximum gain 0dBi when fitted to FM3N-VW11 or FM3N-VW17
  • 82mm (approx) when fitted to FM3N-VW41
    Maximum gain 0dBi
FA-FM-ADJ Adjustable angle antenna

 

Flexible installation, perfect for use in tunnels and indoor environments

Overall node height when upright;

  • 202mm (approx) when fitted to FM3N-VW11 or FM3N-VW17
  • 192mm (approx) when fitted to FM3N-VW41

Overall node height when at 90-degree angle;

  • 102mm (approx) when fitted to FM3N-VW11 or FM3N-VW17
  • 92mm (approx) when fitted to FM3N-VW41

Maximum gain +2dBi

FC-NC Antenna cover kit
Fits FM3N-VW11 and FM3N-VW17 only
Use with FA-FM-LPS antenna
Overall node height 96mm (approx) when fitted

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