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Home | Force Balance Inclinometers | General Inclinometers

SI 701AIC Force Balance Inclinometer

  • 4-20 mA Output
  • +15 VDC Operation
  • Low Cost
  • High Performance

The Columbia Models SI-701AI and SI-701AIHP are 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. Both configurations are also available with a convenient 6-pin electrical interface. Refer to Columbia Models SI-701AIC and SI-701AIHPC. Models SI-701BI and SI-701BIHP 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, +10º, +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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