• 4-20 mA Output
  • +15 VDC Operation
  • Low Cost and High Performance
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The Columbia Models SA-107AI and SA-107AIHP Force Balance Accelerometers are 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.

The Model SA-107AI is a low cost device, while the SA-107AIHP incorporates Columbia's patented HP torquer design providing improved accuracy and repeatability in adverse shock environments. Models SA-107BI and SA-107BIHP are similar configurations that provide voltage output in addition to current output. Consult the factory for customized versions of these sensors.

Exports of accelerometers from the United States are subject to the licensing requirements of the Export Administration Regulations (EAR) and/or the International Traffic in Arms Regulations (ITAR).


Output Impedance 50 Megohm Typical
Ranges Available +0.25 G To +10 G
Output Voltage 4 To 20 mA Corresponding to F.S. Range into a Maximum Load of 600 Ohms
Excitation +15 +1 VDC 50 mA Max.
Sensitive Axis Alignment <0.5°
Scale Factor Tolerance +1%
Scale Factor Temp Coefficient 0.02% / Deg C
Zero Bias 12 +0.05 mA
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