Product Description

1.Measuring range:   PH:    0.00-14.00 PH       T.:    0.1°C-80°C

2.Resolution: PH:    0.01PH           T.:    0.1°C

3.Precision   PH:    +/- 0.01 PH               T.:    +/-0.5°C

4.Automatic temperature compensation:    0—80°C

5.Battery:  3 *1.5 V(AG-13)

6.Operation temperature:       0---80°C

7..Calibration:  Automatic two  point calibration 

8.Auto shut off function:  4 minutes

9.Size :  183mm*37mm*37mm

 NOTE:

1. This item comes without retail box.           

2. This item without battery.    

Operation Steps

1.Take off the protective sleeve

2.Clean the Electrode with distilled water and wipe clean the spare water.

3.Press the "ON/OFF" button .Switch on the power.

4.Put the PH meter in the solution .Make sure the electrode  immersed in the solution.

5. Lightly shake the meter, read the data when the numeric stabilized.The temperate displays at the bottom of the screen .

6. Press the "ON/OFF" button to shut off  the instrument .

Clean the electrode, cover the electrode protective sleeve.

1. Turn on the PH meter

2. Immerse the electrode in PH 6.86 standard buffer solution.

      (under the temperature of 25°C)

3. After digital stabilized, press the "shift" button for 5 seconds,

     (the instrument comes into the automatic calibration Status ) .

     Wait until the display digital is 6.86pH 

   Then complete PH 6.86 point calibration

4. Clean the electrode with distilled water and dry it with filter paper. 

      Immerse the electrode in pH 4.00 standard buffer solution, 

5. After digital stabilized, press "shift" button for 5 seconds.

     Wait until the digital is 4.00 pH..Complete the ph 4.00 point calibration.

6 .Clean the electrode with distilled water and wipe clean the spare water.

   Put the electrode in the PH 9.18 standard solution until the data stable,

   The data is in the range of allowable error.

 7. This instrument calibration work is completed after all the steps.

Attention:

The instrument need recalibrate  in the following condition.

1.Long time no use or use very long time after calibration

2.The electrode is used Very frequently.

3. The testing accuracy requirement is very high.

4.Do not press the "shift" button long time .Otherwise the meter need recalibrate.