Wireless Monitoring System

WiSenMeshWAN 6A07/6A08 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.

WiSenMeshWAN 1CH Vibrating Wire Interface Node-6A07_A (1)

Applications: WiSenMeshWAN® 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.

6A07/6A08 Type – WiSenMeshWAN® 1/4-Channel Vibrating Wire Interface Node
Basics	6A07: 1 x VW Interface Node	6A08: 4 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 (DC)	Max. 60mA (Typ. 48mA)
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 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 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
Sensitivity	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
Voltage	Accuracy: ±0.1V
WSN Interface
Mesh Wireless Interface	WiSenMeshWAN® 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)
IP Rating	≥ IP66
Operating Temperature	-40 to 85°C
Fire Proof	Approved
Certificates	FCC, ACMA
Applications
WiSenMeshWAN® 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. Suggested VW sensor supplier: http://www.soilinstrument.com/
Installation Guidance
Figure. 1-Channel VW Interface Node Product Photos. Figure. 1-Channel VW Interface Node Brackets. Figure. VW Sensor Connections (VW+, VW-, T+, T-, GND). Figure. 4 x VW relate Sensor Connection.