How to calibrate Apera 20 Series Value Testers (1-3 points)

Modified on Wed, Jul 20, 2016 at 1:36 PM

Notes:

For pH calibration, 1st point calibration must be 7.00 pH
For EC/TDS/Salinity's calibration, just dip the probes into accordant standard calibration solutions and follow the same steps in pH calibration.
10.01 pH buffer solution is not included in the kit. Users need to purchase separately.