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- ¸ðµ¨ ¹øÈ£: food pH meter
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[(201739810)pH meter]PH Meter Water Quality Tester PH Tester Glass Electrode PH Measuring Instrumen for Aquarium Water Food Cheese Milk Soil
Features:
1. Using high-quality materials, the quality is guaranteed
2. Delicate appearance and easy to use
3. Large screen display is more intuitive
4. Highly sensitive probe, accurate measurement
5. Suitable for: water source testing, aquaculture, soil testing, cheese testing, etc.
Parameter:
Measuring range: 0.00-14.00PH
Accuracy: ¡¾0.1pH (at 20¡É)
¡¾0.2PH
Resolution: 0.01PH
Battery: 3¡¿1.5V (AG-13 type button battery) (not included in delivery)
Working temperature: 0¡É¢¦50¡É
Correction: 1 point correction
Steps:
1. Connect the electrode and remove the protective cover.
2. Wash the electrode of the pH meter with distilled water first, and use filter paper to absorb the water attached to the electrode.
3. Touch the "ON/OFF" key to turn on the power.
4. Insert the pH meter electrode into the liquid to be measured until the electrode is immersed in the liquid about 4cm deep.
submerged to the electrode connection.
5. Gently stir the solution until the value stabilizes, then read the stable displayed number.
6. Touch the "HOLD" key to keep the current measured value. If you need to re-measure, then
Press the "HOLD" key once to release the hold state.
7. After use, press the "ON/OFF" button to turn off the power, clean the electrode with distilled water, and put on the protective cover.
pH calibration:
1. Immerse the pH electrode in a mixed phosphate standard buffer solution with a pH value of 6.86 (25¡ÆC).
and shake gently.
2. Use a small screwdriver to adjust the calibration potentiometer until the displayed value is at the solution temperature with the standard buffer solution
match the pH. Then wash the electrode of the pH meter with distilled water and attach it to the electrode with filter paper
and surrounding moisture.
3. Insert the electrode into a standard buffer solution of potassium hydrogen phosphophthalate pH 4.01 or borax pH 9.18.
4. When the displayed value is stable, the displayed value should be within the allowable error range compared with the pH value of the buffer solution.
Package list:
Tester*1
Accessory group*1