Medidor Digital pH de 0-14

Easy to use: Simply submerge the pH meter's electrode in the solution under test, readings are quickly displayed on a large LCD screen.

Main features:

Display: digital LCD.

Precision: 0.01

Resolution: +-0.01

Operating temperature: 0 ~ 60 °C.

Measuring range: 0.00 ~ 14.00.

Probe type: precision glass bulb electrode

How is it used:

1. Turn on the pH meter

2. Dissolve each buffer solution in 250 ml of distilled water.

3. Immerse the electrode in the PH 6.86 solution, (at a temperature of 25).

4. Press the "CAL" (calibration) button for 5 seconds and release.

– The display will begin to flash 6.86

– Wait for the screen to stop flickering.

Rinse the electrode with distilled water and dry with filter paper.

5. Immerse the electrode in the PH 4.00 solution,

– Press the “CAL” button for 5 seconds, then immediately press and release the second time.

– The reading will start blinking 4.00

– Wait for the screen to stop flickering. Rinse and dry the electrode with distilled water as before.

6. Return the tool to the buffer to test the calibration. In case of error, repeat the calibration.

7.If you know that the approximate pH of the test solution is greater than 7.0, calibrate the instrument using the 6.86 and 9.18 solution. To do this, follow the calibration table. The third step is the 9.18 point calibration method.