6 Conductivity Calibration

The LTC Levelogger Junior conductivity sensor must be calibrated for reliable conductivity measurements. Calibrate for conductivity at the start of each new monitoring project or at a minimum each new monitoring season (twice a year).

Calibrating the LTC Levelogger Junior again directly after the monitoring project or season will provide information on the degree of conductivity deviation during the project or season. If necessary, readings can be corrected for any conductivity deviation in a spreadsheet program after the data has been exported.

The process of conductivity calibration is performed automatically by use of the Calibration Wizard. You place the LTC Levelogger Junior in a specified calibration solution and follow the steps provided by the wizard. Conductivity calibration solutions are available from Solinst or any laboratory supply outlet.

The LTC Levelogger Junior has an 80,00 μS/cm conductivity range and a calibrated range from 500 to 50,000 μS/cm. It can be calibrated at up to 3 calibration standard points:

• 1,413 μS/cm

• 5,000 μS/cm

• 12,880 μS/cm

The solution(s) must be between 10ºC and 30ºC during actual calibration. Temperature should remain stable during the 10 - 20 seconds it takes to perform each calibration.