How to use this PH meter?
Step 1: Remove the protection cap.
Step 2: Rinse the electrode with distilled water, and dry it with filter paper.
Step 3: Turn the meter on by pressing the “ON/OFF” button.
Step 4: Immerse the pH meter electrode in the solution to be tested. (can not be over the immersion line)
Step 5: Stir gently and wait a few seconds till the reading stabilized.
Step 6: After finished, clear the electrode with pure water, turn the meter off by pressing the”ON/OFF” button, and cover the pen cover back.
Warm Tips
PH meter has been calibrated before delivery, the buyer does not need to re-calibrate after receiving the goods!
In the following cases, the PH meter must be re-calibrated:
1. Not used for a long time;
2. Has been used for a long time after calibration;
3. Special electrode use frequently;
4. The measurement accuracy requirements are relatively high.