Introduction to the method of measuring PH value with PH meter
An analytical tool frequently used in agriculture, environmental protection, and industry is the pH meter. Learn how to use a pH meter to determine the pH level and take safety measures before using it.
1. Using a PH meter or acidity meter to measure pH
(1) Remove the pen's cap.
(2) When you press the machine's on/off button, the operation will be shown.
(3) Add the test liquid to the ph meter.
(4) Lightly shake the pH meter to ensure that the inner bubbles escape and come into touch with the solution completely without hitting the cup wall.
(5) The pH meter will show the reading right away. Wait for the value to stabilize before dipping the pen into the liquid being tested. Within 30 seconds, the accurate value will be presented. (Special: Fluctuating or unstable ph counts are typical.)
(6) Press the hold button to lock the value, then press it again to unlock it so you can record and read data outside of the test solution.
(7) To turn off the pH meter, press the on/off button.
(8) Shake the pH meter test pen gently to remove any residual water. Then, rinse it with deionized or distilled water. Finally, cover the pen lid to measure the temperature. In the calibration mode, it is not displayed and the value defaults to Celsius. In the test mode, the temperature value and the ph value are presented on the LCD panel simultaneously.
2. Acidity meter safety precautions:
(1) Please stay away from hot surfaces and bright lights.
(2) Avoid touching the sensor; if you must, wash your hands with a pH 7 buffer solution.
(3) Please put the pen cap back on after each usage.
(4) Avoid doing tests in hot liquid for too long.
(5) Please rinse the sensor after using it in a solution with a high TDS value.
(6) If a buffer solution with a pH of 7 is required to wash a pH solution with a significant measurement range difference,
(7) Use the best measurement accuracy at least once each month to maximize performance.
(8) Although it is not required, the ph pen will be more precise if it is calibrated before each usage.
(9) After each usage, rinse with a buffer solution with a pH of 7.
(10) Be sure to shake away any air bubbles before applying.
(11) The sensor must be changed right away if it has scratches.
(12) You need to change the acidity meter battery or sensor if the readout is sluggish or unresponsive. The performance will suffer if the pH pen is regularly used and calibrated. When the cal key appears and the ph pen is running in an appropriate setting, press it. Press and hold the temp/cal keys for two seconds while the light is flashing to resume the calibration. You can then re-calibrate.
