User Manual
Slam Stick User Manual
Version No. 2.0
33
9.
Click “OK” to finish editing the channel. Notice, the “Revert” button will now be active for
the channels that were edited. If it is desired to return the calibration coefficients back to
their original manufactured values, clicking the “Revert” button will do so. Click “Apply”
when satisfied with the calibration coefficients entered.
10.
To repeat this calibration for the Z axis, place the Slam Stick on one of its sides on the flat
surface (i.e. X or Y axis pointing up) and take another recording in the same manner as
before. Check the data recording for the Z axis in the new data file and observe the DC
offset. Adjust the Z axis polynomial coefficients in the same manner as the X and Y
coefficients and click “Apply” to apply the correct coefficients.
This same process can be repeated for the piezoelectric accelerometer but this accelerometer
has a dependence on the temperature channel. Therefore there are 4 coefficients; but only the
first two are relevant. The first term is the temperature dependent gain term, this should equal
-0.3% of the gain term, which is the second coefficient.
Device Information
Also in the configuration window is a tab that holds various characteristics of a particular unit.
These include the serial number, hardware/firmware revision, date of manufacturing and
calibration, and the calibration expiration date.
Figure 13: The Device Info tab defines various characteristics of the device. This may be helpful when diagnosing an
issue or for determining when re-calibration is appropriate.
