Overview
QIWEI PHB-1 acid alkalinity tester is a portable microcomputer type acid alkalinity tester, controlled by a microprocessor. Measurement accuracy is 0.01 pH. The instrument uses manual temperature compensation and high-quality imported integrated components. The measurement is accurate, stable and reliable, and the operation is simple and convenient. It is suitable for laboratory measurement of pH value and mV value of solutions.
Features
1. Portable microcomputer design, easy to operate
2. Microprocessor control, Measurement accuracy is high (+/- 0.01pH)
3. Select high-quality imported integrated components for accurate, stable and reliable measurement
4. Built-in smart chip, support one, two or three point Automatic calibration
5. Manual temperature compensation function
6. Can measure ph value and mV value
Principle
Measurement accuracy is ensured with high-quality imported integrated components. Hydrogen ion concentration in solution is detected by Electrode for pH measurement, and potential value is detected by ORP Electrode or Ion Electrode for mV measurement. The built-in smart chip supports a variety of Calibration methods to ensure measurement accuracy.
Applications
Light industry, chemical industry, food, environmental protection, education and scientific research departments
Steps
1. PH value measurement: first use thermometer measurement of solution temperature; press increase key or decrease key to adjust the temperature value of the instrument; Electrode is washed and inserted into the solution, slightly agitated and then placed still. Measured value is stable
2.mV value measurement: first switch the pH meter to the "mV" file; connect ORP Electrode or Ion Electrode, insert it into the tested solution and place it still, and read when the Measured value is stable
Notice
• Measurement accuracy ≤ 0.1pH, just use pH buffer solution for a little calibrating
• Measurement range only in the acidic range (≤ 7pH), can choose pH7 and pH4 calibrated
• Measurement range is only in the alkaline range (≥ 7pH), pH7 and pH10 calibrated
• Measurement range is wide or pH Electrode use time is long aging phenomenon, should choose three point calibrated
• The pH Electrode used for the first time needs to be calibrated at three points to adjust the slope to be consistent with the pH Electrode
