
1-800-446-7488
32
www.in-situ.com
6. Move the solution in the calibration cell to ensure it has been in contact with the surface of the sensors and the
inside of the calibration cell. If necessary, reinstall the blue top cap and gently shake.
7. Discard the rinse calibration solution.
8. Repeat steps 4-6. (Note: for best calibration, it is necessary to rinse twice with the calibration solution to ensure all
contaminants have been removed and the solution has wetted the sensor face. Rinsing with DI can lead to
calibration solution contamination).
9. With the sonde and sensors still inverted, fill the calibration cell with 40-50mL (to the bottom of the threads inside of
the restrictor) of fresh calibration solution. Make sure that the calibration solution is approximately 1 inch above the
surface of the sensor face.
10. Check the sensors for bubbles. Gently tap on the surface to remove any bubbles. Select
Next
.\
The conductivity sensor can be impacted by small or large bubbles. Always check that no
bubbles are present prior to performing a calibration.
11. The app attempts to automatically detect the calibration solution and stabilize the measurements.
12. Check your bottle of calibration standard to determine the reference temperature. If necessary, tap the drop down
list and select the appropriate reference temperature for the calibration.