File Name
Tiltmeter / Submersible Tiltmeter (MEMS)
Resource Type
Brochure| Language | Version | Download |
|---|---|---|
| English |
|
Tiltmeter / Submersible Tiltmeter (MEMS)
RST’s Tiltmeters measure tilt in two axial planes perpendicular gravity vector. The tiltmeter is intended to be permanently installed to provide long-term observation with maximum resolution and sensitivity, and conveniently accommodates for manual monitoring or remote data acquisition.
Overview
The system consists of an adjustable universal mounting bracket that can be installed vertically, horizontally, or at an angle, an interconnecting cable, and a data logger or readout instrument. The housing is IP68 rated up to 2 MPa. for maximum resistance against water ingress. The cables are securely encapsulated inside the housing with water-proof connectors to provide watertight performance at depths up to 200 meters submersion. Bussed and non-bussed versions are available to accommodate daisy-chained and single-point installations.
Tiltmeter / Submersible Tiltmeter (MEMS) Specifications
| ITEM | SPECIFICATION |
| Range | ±30° |
| Resolution | (±0.0002°) (0.04 mm/m)¹ |
| Sensor Precision | ±0.0013° (0.02 mm/m)¹ |
| Sensor Precision | ±0.0005°(0.01 mm/m)² |
| Sensor 24hr Stability | ±0.03 mm/m¹ |
| Sensor 24hr Stability | ±0.01 mm/m² |
| Sensor | MEMS Accelerometer |
| Temperature Dependent Uncertainty | ±0.016 mm/m/°C (±0.001°/°C), for ±5° from vertical |
| Temperature Dependent Uncertainty | ±0.033 mm/m/°C (±0.002°/°C), for ±15° from vertical |
| Temperature Accuracy | ±0.5 °C (0 °C to 60 °C) |
| Temperature Accuracy | ±1.0 °C (-40 °C to 60 °C) |
| Temperature Resolution | 0.06 °C |
| Operating Temperature | -40 to 80 °C (-40 to 175°F) |
| Dimensions | ø28.6mm x 211mm (ø1.125” x 8.31”) |
¹: 99% Confidence Interval
²: 68% Confidence Interval
Tiltmeters are commonly used for:
- Monitoring of tilt of retaining and building walls.
- Tilt of concrete dams.
- Structural load testing.
- Landslide Monitoring
- Building safety along adjacent excavations.
- Applications where the failure mode is expected to have a rotational component.
- Observation of benches and berms in open-pit mines.
- Bridge pier monitoring
- Ground subsidence
- Installation of submerged pipelines.
- Various horizontal, vertical applications
Tiltmeter / Submersible Tiltmeter (MEMS) Ordering Info
Non-Bussed
| ITEM | PART # |
| MEMS Biaxial Tiltmeter-digital non-bussed -5m (bare leads) |
IC8161-5m |
| MEMS Biaxial Tiltmeter-digital non-bussed-10m (bare leads) |
IC8161-10m |
| MEMS Biaxial Tiltmeter-digital non-bussed-15m (bare leads) |
IC8161-15m |
| MEMS Biaxial Tiltmeter-digital non-bussed-20m (bare leads) |
IC8161-20m |
| MEMS Biaxial Tiltmeter-digital non-bussed-Xm (bare leads) Vertical surfaces only |
IC8161-V-Xm |
| Custom cable lengths available on request |
Bussed
| ITEM | PART # |
| MEMS Biaxial Tiltmeter-digital bussed-3m (connectors) |
IC8160/IC8160-V (vertical surfaces only) |
Mounting
| ITEM | PART # |
| Universal Bracket for MEMS Biaxial Tiltmeter | IC8180 |
| Protective Cover for MEMS Biaxial Tiltmeter | IC8185 |
Readouts & Data Loggers
| ITEM | PART # |
| Rugged Handheld PC | IC32000-NAUTIZ |
| Digital Interface for Rugged Handheld PC with software | ELGL4010 |
| RSTAR DT2485 DT-BUS Data Logger | DT2485 |
| FlexDAQ Dataloggers and RSTAR Affinity Data Loggers |
Accessories
| ITEM | DESCRIPTION |
| IC8060E | End of Chain Dummy Plug |
| IPICBL5PINMXF5M | Extension Cable-5m Sensor to Sensor (Bussed) |
| IC8051 | Communication Cable to Logger-5m |
| IC8052 | Communication Cable to Logger-10m |
| IC8053 | Communication Cable to Logger-20m |
| IC8050 | Communication Cable to Logger-Custom Length |
Speak with an Expert
I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd