Wireless Monitoring System

WiSenMeshNET 1/4-Channel Vibrating Wire Interface Node

This internally powered sensor node allows integration with upto eight vibrating wire sensors. With wide frequency  range (400~6000Hz) and very high accuracy (±0.015%) and precision (±0.002Hz@400Hz or 0.05Hz @6000Hz). 

The nodes automatically excite the vibrating wire in the connected devices at required intervals and collate data for the frequency (Hz) and resistance (KΩ). 

The node can have multiple channels for sensor input, an integrated temperature sensor and wireless mesh radio transmitter via the external antenna. 

The battery lifespan is up to 15 years for 1 Channel and 17 years for 4/8 Channel versions at  hourly readings.

WiSenMeshNET 4CH Vibrating Wire Interface Node-1A05

WISENMESHNET® VW interface node is Compatible with all different brands & types of high quality Vibrating Wire sensors, therefore it can be applied in all different related monitoring projects. Examples of VW sensors: Strain Gauge; Displacement Transducers; Piezometers; Settlement Sensors; Pressure Cells; Load Cells.

1A07/1A05/1A06 Type – WISENMESHNET® 1/4/8-Channel Vibrating Wire Interface Node

Basics

1A07: 1 x VW Interface Node

1A05/1A06: 4/8 x VW Interface Node

 

Battery Power

Qty. x 1 (3.6V Lithium primary D-Cell

ER34615)

Qty. x 2 (3.6V Lithium primary D-Cell

ER34615)

Accuracy Stop Voltage

2.1VDC

Mesh Stop Voltage

2.1VDC

Battery Connection

Standard Aluminium Battery Holder

Working Current

Max. 100mA (Typ. 98mA)

Local Storage

Min. 450 Messages during Meshing

L x W x H

100 x 100 x 60mm

180 x 140 x 60mm

Weight

0.60kg

1.20kg

External Sensor Size and

Weight

Depending on the specific VW sensor connected

(External cable length ≤ 1.1km)

 

Cable Gland

Qty. 1 x EMC-CMA12 for external VW

sensor connection

Qty. 4/8 x EMC-CMA12 for external VW

sensor connections

Wire Connection

Spring type wiring terminal

Externally Connected VW Sensor

Sensor Type

Vibrating Wire Typed

No. of Inputs

1 Channel

4/8 Channels

 

 

Sensor Connection

VW Type of 5 wires: VW+, VW-, T+, T-, GND.

Note: Temperature wires (or a 3kΩ resistor) must be connected to the T+ & T- terminals so VW node can work properly; Ground wire between a node and a sensor must be connected.

Parameter

Resonant Frequency (Hz)

Range

400 to 6000Hz

Accuracy

0.015% at Any Reading

Resolution

0.002Hz@400Hz or 0.05Hz@6000Hz

External Thermistor Sensor

Parameter

Thermistor Resistor of 3kΩ@25°C

Range

0.052kΩ to 113.096 kΩ

Accuracy

0.12kΩ or 2°C

Standard System Parameter

 

Temperature

Range: -40 to 85°C, Accuracy: ±1°C, typical: 0.5°C; Resolution: 0.1°C (Note: Only

available in 1A07 Type)

Voltage

Accuracy: ±0.1V

WSN Interface

WSN Protocol

WISENMESHNET® Protocol

Re-Calibration Method

Inspection Period

Every 3 Years by Manufacturer (or inspected by arranged methods)

Industrial Standard

Casing and Painting

Materials

 

Aluminium-Alloy Die Castings 12 (Epoxy Polyester Powder Coating)

WiSenMeshNET 1A07/1A05/1A06 Type – 1/4-Channel Vibrating Wire Interface Node

WiSenMeshNET® Product @ 2.4GHz Radio Frequency

Casing and Painting Materials:  Aluminium-Alloy Die Castings 12 (Epoxy Polyester Powder Coating)
IP Rating:  >= IP66
Operating Temperature:  -40 to 85°C
Fire Proof:  Approved
Certificates:  CE, ACMA, RoHS, REACH,Network Rail Approval (UK), London Underground Product Approval (UK)
  • Vibrating Wire Interface
  • 1/4/8 Channel Versions
  • Intelligent node/repeater
  • Battery life up to 17 years
  • 1 second to 1 hour variable readings
  • End user configurable
  • Rugged Housing
  • IP66
  • Auto Sweep Range Band Detection to eliminate attenuation noise

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