SENSOR-SPECIFIC MESSAGES
Wireless Acceleration Sensor User Guide
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The scaling parameter defines the G-force (1g is the force of gravity) range that the internal accelerometer
operates with, and the lower settings will be more sensitive than higher settings. The threshold setting will have
units based on the scaling factor as shown in the table above. For example, if the scaling is set to +/- 2g (2x the
force of gravity), then the threshold setting can be multiplied by 0.016g to calculate the total G-force threshold.
The accelerometer is measured every 250ms and if the difference between two consecutive measurements
exceeds the threshold, then a message is sent.
The minimum setting for the acceleration change threshold is 5. If a lower number is programmed, the sensor will
not generate an event.
Note:
For best practice, use the largest scaling factor that the system will allow and the smallest threshold. For
example, use a threshold of 5 with scaling factor 4g instead of threshold of 10 with 2g.
