The Triaxial Tilt Sensor Node is an extremely high precision and exceptionally stable three axis tilt sensor which reports its measurements through Senceive’s wireless communications network to a Gateway.
It has been successfully applied in many applications, including those measuring:
- Tunnel distortion
- Tunnel heave / settlement
- Embankment slippage
- Structural movement
- Rail track heave / settlement
- Rail track bed cant and twist
Key benefits
- Integrated triaxial tilt sensor
- Extremely low noise performance
- Resolution of 0.0001° (0.0018mm/m) and repeatability of ±0.0005° (±0.009mm/m)
- 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
Physical specifications
| Parameter | Value |
|---|---|
| * Approximate values only | |
| Dimensions excluding antenna | 90 x 90 x 60 mm 90 x 96 x 60 mm (including vent) |
| Total Mass | 0.6 kg* |
| Housing Material | Die cast aluminium |
| Protection (BS EN 60529: 1992 + A2: 2013) | IP66 / IP67 IP68 at 1m for 24 hours |
| Mounting Options | Clearance holes for M4 socket head screw in bottom M4 blind holes in side Plates and brackets available for magnetic fixing, track bed, stake and pole mounting, and many other applications |
| Operating Temperature Range | -40°C to +85°C Sensor accuracy is reduced slightly at temperatures below -25°C |
FlatMesh Radio Specifications
| Parameter | Value |
|---|---|
| * 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* |
GeoWAN Radio Specifications
| Parameter | Value |
|---|---|
| * 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 |
Tilt Sensor Specifications
| Parameter | Value |
|---|---|
| Resolution | 0.0001° (0.00175mm/m) |
| Repeatability | ±0.0005° (±0.0087mm/m) |
Internal battery
| Parameter | Value |
|---|---|
| * Consult with Senceive for your application | |
| Battery Type | Lithium Thionyl Chloride |
| Nominal Voltage | 3.6V |
| Nominal Capacity | 19000mAh |
| 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
| Model | Description |
|---|---|
| FM3N-IX LR3N-IX |
FlatMesh 3 Triaxial Tilt Sensor GeoWAN Triaxial Tilt Sensor |
| FF-MP-S360 | Swivel mounting kit with 360-degree adjustment range
|
| FF-MP-V | Vertical mounting plate
Use with FF-MP-S360 |
| FF-MP-RA | Right angle mounting bracket
Use with FF-MP-S360 |
| FF-MP-T2 | Track bed mounting plate kit |
| FF-MP-M2 | Magnetic mounting kit High degree of adjustability, perfect for cast iron lined tunnels |
| FF-BK-xxxx FF-BE | Tilt beam kit See datasheet for more information |
| FA-FM-WPS | Waterproof straight antenna Overall node height 168mm (approx) when fitted 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 |
| FA-FM-ADJ | Adjustable angle antenna Flexible installation, perfect for use in tunnels and indoor environments Overall node height 202mm (approx) when fitted and upright Overall node height 102mm (approx) when fitted and at 90-degree angle Maximum gain +2dBi |
| FC-NC | Antenna cover kit Use with FA-FM-LPS antenna Overall node height 96mm (approx) when fitted |
