Yieryi Digital TDS Meter Filter Measuring Water Quality Purity
Tester Water tds meter
Product Feature:
- Test the quality of various water ensuring you are enjoying the
best quality water.
- Ideal for using in the following situations: drinking water water
filters hydroponics aquariums food&coffee pools&spas.
- Data hold. Auto temperature compensation.
- Come with a leather case.
TDS range | 1-9999PPM/mg / L. |
Auto shut-off | 10 minutes. |
Accuracy | ±2% |
Dimensions | 14.2*2.3*1.3(CM) |
Battery | 2×LR44 cell batter(not INCLUDE) |
Packing list
- 1* tds-3 meter
- 1*english user manual
- 1*leather bag
Calibration of the pH meter
- 1, the 250ml of distilled water or pure water can use calibration
powder. PH electrodes immersed in pH value of mixed phosphate
standard 6.86 buffer solution, and gently shake.
- 2, with yellow small screwdriver, facing pH pen behind the round
hole, left and right rotation, you can adjust the correction
potentiometer, until the display value and standard buffer solution
at ambient temperature of pH value of 6.9 consistent.
- 3. Ibid. Insert the electrode into the standard buffer solution of
pH4.00 potassium formate two potassium hydrogen phosphate.
- 4, after about two minutes. The display value should be within the
allowable range of the error compared with the pH value of the
buffer solution.
- Do not stain the liquid, after the calibration with plastic wrap
sealed, you can reuse, after correction, with clean water clean, if
not often used, can be corrected once in 2-3 months!