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70
Calibration
Depth
Note: This calibration option is available only if your sonde is equipped with an integral depth sensor.
For the depth calibration, make certain that the depth sensor module is in air and not immersed in any
solution. Also, review the basic calibration description on pg 65.
In the Calibrate menu, select Port D-Depth, then select Depth from the second menu.
Click 1 Point for the Calibration Points. Enter 0 or a known sensor offset.
Click Start Calibration. Observe the readings under Current and Pending data points and when they
are Stable (or data shows no significant change for approximately 40 seconds), click Apply to accept this
calibration point. This process zeros the sensor with regard to current barometric pressure.
Click Exit to return to the sensor calibration menu, and then the back arrows to return to main Calibrate
menu.
For best performance of depth measurements, users should ensure that the orientation of the sonde remains
constant while taking readings. Keep the sonde still and in one position while calibrating.
Use the Advanced menu to select if a sonde will be mounted
in a moving/profiling deployment instead of a fixed location.
You can also enter latitude and longitude in the Advanced
menu.
5.4
