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Home | Force Balance Inclinometers | Biaxial Inclinometers

SI 702AI Biaxial Force Balance Inclinometer

  • High Accuracy
  • +/-15 VDC Operation
  • Low Cost
  • High Performance

Columbia Models SI-702AI and SI-702AIHP are biaxial force balance inclinometers designed with an output circuit configuration made for use in 4-20 mA data transmission systems. The 4-20 mA system is used extensively in industrial installations in order to transmit data over long distances in environments where interference from nearby electrical power lines could be a problem.

A single +15 volt supply powers both the sensor and 4-20 mA line driver. Special desensitization circuitry allows these devices to provide accurate tilt data while in substantial vibration environments. Models SI-702BI and SI-702BIHP Biaxial Inclinometers are similar configurations that provide voltage output in addition to current output. Consult the factory for customized versions of these sensors.

Specifications

Output Impedance 50 Megohm Typical
Ranges Available 5º, +15º, +30º, +45º, +90º
Excitation +15 +1 VDC <50 mA
Scale Factor Tolerance +1%
Scale Factor Temp Coefficient +0.02% / Deg C
Output Current 4-20 mA
Output Function Io = 12 + K Sin (mA) +0.5% of Normal Into a Maximum Load of 600 Ohms
Non-Repeatability +0.1% F.R.
Non-Linearity +0.1% F.R.
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