Force Balance

SA 100MR

Selectable-Range Sensor
+/- 15 VDC Operation
Low Cost Flexibility

The Columbia Model SA-100MR offers the superior performance of force balance technology with the flexibility of multiple operating ranges for DC and low frequency measurements. The accelerometer is self-contained and provides a high level, low impedance output. No signal conditioning is required in most applications.

The full range for Model SA-100MR is specified when the accelerometer is ordered. The range may then be adjusted from 0.05 to 1 times the full range by means of an external resistor. The selected range always corresponds to an output of ±7.5 volts. The noise floor remains constant and does not increase as the scale factor is increased, thereby achieving the optimum signal-to-noise ratio for any range selected.

Notes:
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).

Specifications

Output Impedance	100 Ohms Typical
Ranges Available	+1G, +5G, +10G, +50G
Output Voltage	+7.5 Volts Adjustable From F.R. to 10% of F.R.
Excitation	+12 VDC to +15 VDC 8 mA Standby, 20 mA @ F.R.
Sensitive Axis Alignment	Better than 0.25 Deg
Scale Factor Tolerance	+1%
Scale Factor Temp Coefficient	+0.02% / Deg C
Zero Bias	+0.15% F.R.
Null Temp Sensitivity	0.00015% F.R. / Deg C