MEMS Tiltmeter Instruction Manual
RST’s MEMS In-Place Tilt Meters measure tilt in either one or two axial planes perpendicular to the surface of the base plate.
RST’s MEMS In-Place Tilt Meters measure tilt in either one or two axial planes perpendicular to the surface of the base plate. The unit is intended to be permanently installed to provide long-term observation with maximum resolution and sensitivity, and is conveniently designed for manual monitoring or remote data acquisition.
MEMS systems consist of a tiltmeter mounting plate, interconnecting cable, and data logger or readout instrument. The tiltmeter may either be uniaxial or biaxial and is available in both horizontal and vertical versions. The electronics are housed in a NEMA 4X (IP-65) enclosure for environmental protection, and is typically bolted or bonded to the structure.
|Resolution (digital)||±2 arc sec. (±0.0006°) (0.01 mm/m)|
|Non-linearity (digital)||±0.0125% F.S. (±0.002°) (0.03 mm/m)|
|Repeatability (digital)||±0.0125% F.S. (±0.002°) (0.03 mm/m)|
|Resolution (analog)||±5 arc sec. (±0.025 mm/m) (10Hz BW)|
|Non-linearity (analog)||±0.05% F.S. (±0.0075°) (0.13 mm/m)|
|Repeatability (analog)||±0.025% F.S. (±0.004°) (0.06 mm/m)|
|Sensor||MEMS (Micro-Electro-Mechanical Systems) Accelerometer, Uniaxial or Biaxial|
|Sensor Offset||+/- 0.002 arc deg./deg. C|
|Sensor Sensitivity||+/- 0.013 % of reading/deg. C|
|Excitation (analog)||8 – 15V DC|
|Operating Temp.||-40 to 85°C (-40 to 185°F)|
|Dimensions||80 x 80 x 61mm (3.15 x 3.15 x 2.4 in.)|
In-Place Tilt Meters are commonly used for:
|MEMS Uniaxial Tiltmeter – digital bus output||IC6556|
|MEMS Uniaxial Tiltmeter – analog voltage||IC6550|
|MEMS Uniaxial Tiltmeter – 4-20mA||IC6552|
|MEMS Biaxial Tiltmeter – digital bus output||IC6656|
|MEMS Biaxial Tiltmeter – analog voltage||IC6650|
|MEMS Biaxial Tiltmeter – 4-20mA||IC6652|
|MEMS Tiltmeter Horizontal Mounting Plate||IC6700|
|MEMS Tiltmeter Vertical Mounting Bracket||IC6705|
|Available for digital models only|
|READOUTS & DATA LOGGERS||PART #|
|DT2485 DT-BUS Data Logger||DT2485|
|flexDAQ Dataloggers (digital and analog systems)|
|EL380004||· Digital Bus (with or without temperature)
· 4-20 mA
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