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  • Filling Line Factory RO Water Treatment Blow Molding Machine China Cheap Water Dispenser

Water Test pH Meter

  • water-test-ph-meter

Derived Models:

It is an ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food, beverage and more. Generally it equips with protective plastic case and calibration screwdrive. Besides, this device is very accurate and durable.

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  • Product Detail

Introduction:

It is an ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food, beverage and more. Generally it equips with protective plastic case and calibration screwdrive. Besides, this device is very accurate and durable.

Specification:

Model Number

testing water ph meter

Measure Range

0.00~14.00ph

Resolution

0.01ph

Accuracy

+/-0.05ph

Power Supply

2*1.5V

Operating Temperature

0~80℃

Calibration

two points automatic calibration

Dimension

155mm*31mm*18mm

Weight

50g

Process:

1. Turn on pH meter

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

3. Immerse the electrode into the  pH 6.86  solution.

     (under the temperature of 25)

4. Press the "CAL" (calibration) button for 3 seconds and release

    -Display  will start flashing 6.86   

    -Wait until the display stops flashing.

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

5. Immerse the electrode in pH 4.00 solution,

    - Press  "CAL" button for 3 seconds ,then press and release immediately second time

    - Reading will start flashing  4.00

    - Wait until display stops flashing

Rinse and dry the electrode with distilled water as before.

6. Test calibration by inserting electrode into pH 9.18 buffer solution,

   gently swirl electrode until digital display stabilizes. Display should read between 9.16 and 9.20.  (if necessary repeat calibration procedure)

Notes

If approximate pH of solution is known to be above 7.0,calibration meter using the 6.86 and 9.18 solutions.To do this follow step 3,then immerse electrode into 9.18 solution.Press and hold cal button for 3 seconds,then press and release button two more times.reading will start flashing 9.18,then proceed as before.This will provide greater accuracy.