2018 Hot selling high quality ph tester digital
1.Measuring range: PH: 0.00-14.00 PH
2.Resolution: PH: 0.01PH
3.Precision PH: +/- 0.01 PH
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
10.Weight : 80g
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.
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.
When the display value is fuzzy or unshown ,it shall check the battery voltage. Lessing than 3 v,it shall promptly replace the battery.
Unscrew battery cover and replace the battery.
Pay attention to the polarity of battery.
The instrument maintains for a year, from the delivery date , guaranteeing due to production and material defects
If the instrument need to be changed or repaired ( not the artificial damage or caused by fault using ) ,please mail the manual and the instrument together to our factory .
We will solve all the problem for you .
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. we have good after-sales service . we are online 24 hours .you can contact us any time if there has problem .
2. we can supply you picture modification service . our designer can modify picture for you according to your requirements
3.we can print logo on the tds&ec meter for you .