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® 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