Geometrics Inc. G-882 Cesium Marine Magnetometer Page
will not be accurate. It is advised to add more than two points to get improved
accuracy.
You should also select “Channel Represents Depth” from the dialog box in
MagLog™. This option is important if you have an ORE Track Point II or other
Sonar USBL tracking device and will be using the depth sensor to improve the
tracking calculations.
If you are satisfied with the calibration, select “OK”.
4) You will then be given the opportunity to save your calibrations into a file.
The file will keep track of the scale and bias calculated, and the readings
used to make the calculation. It is advised to keep this for your records.
Manual Calibration
Manual calibration gives you the opportunity to enter the scale and bias directly
without having MagLog™ calculate it for you.
You can find the scale and bias by hand, or use third party software.
To use the MagLog™ manual calibration feature, select “Manual Calibration”
from your device settings menu. (Make sure that you have the correct sensor
and channel selected as discussed in the section on “Auto Calibration”.)
You will see a dialog box:
Enter your scale and bias values, and check “Channel represents depth” if this
is a depth calibration. Then press “OK”.