User's Manual

Wisen Innovation Technical Doc. No.2021 WiSenMeshWAN® 4-Channel Vibrating Wire Interface Node - User Manual
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3. Node & Radio Features
Node Features:
Basics
Battery Power
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
180 x 140 x 60mm
Weight
1.20kg
External Sensor Size and
Weight
Depending on the specific VW sensor connected
(external cable length ≤ 1.1km)
Cable Gland
Qty. 4 x EMC-CMA12 for external VW sensor connection
Wire Connection
Spring type wiring terminal
Externally Connected VW Sensor
Sensor Type
Vibrating Wire Typed
No. of Inputs
4 Channel
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