DR + GPS
STARTER KIT REFERENCE MANUAL
Lassen DR + GPS Reference Manual 29
Save the Calibration Settings
You can save the calibration settings of the Gyro and Tachometer in Flash memory
for future use, should the power supply to the DR+GPS be removed and the settings
lost.
Correct calibration of the Gyro can only be carried out after the Tachometer input
has completed its calibration. The Tachometer calibrates after 40 GPS fixes which
are above the speed of 8m/s. The Gyro bias calibration completes after a short
standstill. The Gyro Scale Factor calibrates after twenty 90o
turns.
1. Use DrMonitor in HIPPO output mode to view the Gyro Calibration and Tacho
Calibration status lights.
2. Wait for these indicator lights to turn green.
3. From the DrMonitor menu, select SysCmd> Clear Position, Reset.
4. From the DrMonitor menu, select SysCmd> Write BBRAM to Flash, Reset.