SI 701B

SI 701B

  • Biaxial Tilt Sensor
  • 4-20 mA Output
  • Low Cost
  • High Performance
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The Columbia Models SI-701B and SI-701BHP are electronic tilt sensors based upon force balance accelerometer technology. They produce a high level low impedance output proportional to the sine of the tilt angle. Unique electronic damping and desensitization circuitry allows tilt measurements in strong vibration and shock environments.

These inclinometers are self-contained requiring no additional signal conditioning in most applications. The Model SI-701B is well suited for many OEM and industrial applications. The Model SI-701BHP uses the Columbia patented HP suspension system and provides added accuracy and ruggedness. These sensors are intended for applications such as platform stabilization, surface mapping and measuring tilt angles in remote locations. Consult the factory for customized versions of these sensors.


Output Impedance <100 Ohms
Ranges Available +15°, +30°, +45°, +90°
Output Voltage +5 VDC at Full Range Output Proportional to the Sine of the Angle
Excitation +12 VDC to +15 VDC <15 mA Each Supply
Scale Factor Tolerance +1%
Non-repeatability +0.1% F.R.
Recommended Load 100K Ohms or Greater
Output Noise <3 mV RMS
Non-Linearity +0.2% F.R.
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