General Inclinometers

Columbia's SI-701 Series of Inclinometers are electronic tilt sensors based on Force Balance Accelerometer technology. They produce high level low impedance output proportional to the sine of the tilt angle. Model SI-701B is a low cost general purpose sensor that can be up-graded with the addition of the Columbia "HP" torquer system (SI-701BI) for greater accuracy and ruggedness. A bi-axial version of both units (SI-702B) is also available. The Model SI-701BI is designed with an output circuit made for 4-20mA data transmission systems for industrial applications. The model SI-701FND is a fluid dampened premium performance inclinometer designed to produce accurate tilt data in extreme shock and vibration environments. The latest addition in the line is Model SI-701WPBI, a waterproof (to 150 feet) inclinometer which operates from a +15 volt supply with 4-20mA output. A single power supply powers both the sensor and the 4-20mA line driver.

Model Excitation Ranges Available
(Deg)
Non Linearity
(% F.R.)
Output
SI 701AI
+15VDC ±15 Thru ±90 ±0.2 4-20mA
SI 701AIC
+15VDC ±15 Thru ±90 ±0.2 4-20mA
SI 701AIHP
+15VDC ±5 Thru ±90 ±0.1 4-20mA
SI 701B
±12 To ±15VDC ±15 Thru ±90 ±0.2 ±5V
SI 701BC
±12 To ±15VDC ±15 Thru ±90 ±0.2 ±5V
SI 701BHP
±12 To ±15VDC ±5 Thru ±90 ±0.1 ±5V
SI 701BHPC
±12 To ±15VDC ±5 Thru ±90 ±0.1 ±5V
SI 701FND
±15VDC ±1 Thru ±90 ±0.05 ±5V
SI 701FNE
±15VDC ±1 Thru ±90 ±0.05 ±5V
SI 701WPBI
+15 ±1VDC ±15 Thru ±90 ±0.2 4-20mA
SI 701WPBIHP
+15 ±1VDC ±5 Thru. ±90 ±0.1 4-20mA
SI 702AIHP
+15 ±1VDC ±5 Thru ±90 ±0.1 4-20mA
SI 724BIHPC
+18 To +28VDC ±5 Thru ±90 ±0.1 4-20mA
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