Clean the liquid junction of your electrodes once a day or at least once a week to prevent clogging and to maintain accuracy. Immerse the electrode in the proper cleaning solution for about 5 minutes.
HANNA® offers a wide range of cleaning solutions, for general purpose and specific applications, to eliminate all kind of dirt or deposit from the electrode, and thus ensure correct measurements.
HI7033L - EC 84 µS/cm@25°C - 500ml
BL983327-1 EC Mini Controller upto 10.00 mS/cm, 230V
HI7036L - 12.41 g/L (ppt) TDS @25°C - 500ml 

