Calibration - Altronics PH-01 Quick Start Manual

2. First rinse the electrode with distilled water, and suck it with filter paper.
3. Turn the meter on by pressing the "ON" key.
4. Immerse the ph meter electrode in the solution to be tested（cannot be over the immersion line )
5. Stir gently and wait around 30 seconds till the reading stabilized.
6. After finished, clear the electrode with pure water, turn the meter off by pressing the "ON/OFF"
key.
7. Always replace the protective cap after use.

Calibration.

Testing solution
Acidity
Alkalinity
Calibrated in Checking in
6.86 and 4.00
6.86 and 9.18
4.00
9.18