Description

Our Digital MEMS Tiltmeter with MEMS technology sensors is used for the measurement of changes in tilt of a rigid body, in two orthagonal directions.

The instrument is fixed in-place and when connected to an automatic acquisition system allows long-term observation and periodic programming. Digital output allows the formation of clinometer chains made from “n” sensors connected by a single serial cable to the acquisition unit.

The instrument is available in single and dual-axis versions for horizontal and vertical application, both with temperature reading. In addition to the standard version with IP66 protection housing fully waterproof versions for immersion are available, including for great pressures.

Digital MEMS inclinometers, can be read with our portable units (DEC3000) and automatic (CUM3000) or simply read by PC with appropriate reading and programming software

Applications

In its standard versions, this instrument, is used for measuring the tilt variation in structures. Depending on the mode of installation, it is possible to use this instrument for the detection of deformation or movement of “bodies,” both rigid and incoherent.

Particularly used in the railway engineering for the measuring of tracks; it also finds application in structural monitoring both during construction and in subsequent management.

Also used for:

  • Support walls
  • Walls and  piles
  • Bridges
  • Dams
  • Landslides
  • Embankments
  • Monuments
  • Structures of archaeological interest
  • Towers
  • Chimneys
  • Minarets
  • Various

Features and Benefits

  • Available in mono or biaxial form
  • Installation on vertical walls or on the ground
  • Digital output
  • Digital bus
  • Manual or automatic readings
  • High accuracy and repeatability
  • Easy to install
  • Robust and compact
  • Ideal for all applications
  • IP67; on request: IP68

Measurment Principle

The clinometer is constituted of two single-axis MEMS sensors (Micro-Electro-Mechanical-System) .The sensitivity, reliability and robustness of the sensor, make this instrument a great low cost aid for systems which are monitoring deformation of structures and also rotation and tilt variations.

Installation is simple and immediate, fixed to the wall with the aid of 3 Fischer fixings and a simple initial check with an optical level

Adjustment and refinement plates are available for special applications.

Usually, systems with multiple sensors are produced, the sensors being either separate from each other or interconnected by extension bars to allow the formation of chains for monitoring subsidence and structural deformation.

Instrument chains allow the monitoring of an entire profile (rather than single points) and also provide greater overall accuracy of measurement.

These sensors, with RS485 (MODBUS) exit, allow easy interfacing with our Data Logger CUM3000 and with various other reading and acquisition systems currently available on the national and international market both these ones with analogical and digital output.

Technical Specifications

Sensor
Type Monoaxial or biaxial
Digitizer
Type 2 Channel 24 bit – Sigma Delta ADC
Sampling rate 100 SPS per channel
General Specifications
Range ±2,5°, ±5°, ±15° (other upon request)
Linearity <±0,05% f.s.
Resolution 0,001°
Thermal Drift 0.01%/°C
Long-term stability <0,004°
Output Measure Rotation in 0,001° – Temperature in 0,1°

 

Welded Case

Type Stainless steel
Length 140mm
Diameter Pipe Diameter = 30mm
Protection degree IP68
Weight 500 gr about
Working Temperature -40 to 85 °C
Case ORing
Type Anodized and varnished aluminum
Length 73,6 mm x 123 mm
Dimensions 75x80x40 (h) mm
Protection degree IP66
Weight 600 gr about
Working Temperature -40 to 85 °C
Power Supply
Power Supply 10 to 25 VDC
Absorption 15 mA@15 VDC
Communication
Output signal RS485 MODBUS RTU protocol
2400, 4800, 9600, 19200, 38400, 57600 Boud Rate
(connection up to n°128 sensors with one cable type 2x2x0,5mmq)

 

Technical Assistance

If you have any requests or questions about our instruments or if you have special needs that require different solutions from the standard, please contact us. Our team will provide all the necessary information and will be very happy to work with you to study, develop and customize instruments and solutions suitable for your specific needs.

 

All information in our datasheet is subject to change without prior notice.

Please check the datasheet/details carefully and contact Pizzi Instruments for further information