- Primary Test: Point the sensor arrow upward and hold sensor motionless; reading should be approximately 9.8 m/s^2. Point arrow downward; reading should be approximately -9.8 m/s^2.
- Secondary Test: Make sure that the line marked by the arrow on the label of the sensor is positioned parallel to the direction of intended acceleration measurement.
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Power: 30 mA @ 5VDC
Range: +/-50 m/s2 (+/-5g)
Accuracy: +/-0.5 m/2 (+/- 0.05g)
Frequency Response: 0 to 100 Hz
Calibrate? Usually, no. The sensor is individually calibrated before shipping. For many experiments, you may use the stored calibration and zero the sensor before collecting data.
Perform a two-point calibration.
- First point: position the sensor with the arrow pointing down and held motionless, and define this reading as -9.8 m/s2 or -1 g.
- Second point: rotate the sensor so that the arrow points up and define this reading as +9.8 m/s2 or +1 g.
- Zero the accelerometer in the orientation to be used.