IV:XX Super Quality pH Meter
Measure Range: 0.0-14.0pH Resolution: 0.01pH Accuracy: +/- 0.1pH Automatic Temperature Compensation: 0°C ~ 50°C Power Supply: 2 x 3V (CR2032 Battery) Operating Temperature: 0°C ~ 50°C Calibration: manual, at one point through trimmers Dimension: 150mm x 27mm x 20mm Weight: 46g
Operation: Remove the protective cap. First rinse the electrode with distilled water, and suck it with filter paper. Turn the meter on by pressing the ON key. Immerse the pH meter electrode in the solution to be tested. Stir gently and wait for the reading to stabilize. After use, rinse the electrode with water to minimize contamination. Turn the meter on by pressing the OFF key. Always replace the protective cap after use.
pH Calibration: Immerse the electrode in pH6.86 (under the temperature of 25°C) standard buffer solution of phosphate, and gently shake the electrode. Regulate the trimmer with a screwdriver until the buffer solution value corresponding to the measurement temperature is obtained. Immerse the electrode in pH4.01 or pH9.18 the standard buffer solution of borax. After about one minute, until the buffer solution value corresponding to the measurement temperature is obtained.
Important - The instrument’s pH range must be re-calibrated whenever: Approximately one month has passed from the last calibration. The electrode has been used in particularly taxing conditions. The utmost accuracy is required.