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.
Output Impedance | 50 Megohm Typical |
---|---|
Ranges Available | +5°, +10°, +15°, +30°, +45°, +90° |
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. |