Overview
QIWEI PHS-25 pH meter (Benchtop microcomputer model) is a Benchtop digital acidity meter with measurement accuracy of 0.05pH. It adopts imported high-quality integrated components and is controlled by microprocessor. The performance is stable and the measurement is accurate and reliable. The product is often used in laboratory to detect the acidity value and mV value of solutions, using touch buttons and manual temperature compensation.
Features
1. Measurement accuracy up to 0.05pH
2. Adopt imported high-quality integrated components
3. Microprocessor control, stable performance
4. Touch the button to operate
5. Manual temperature compensation function
6. Can measure ph value and mV value
Principle
The PHS-25 pH meter is a DC amplifier with high input Impedance, and the Impedance transformation is obtained by the high input Impedance integrated circuit. Since the pH value of the solution is temperature-dependent, and the mV-pH conversion slope of the Glass electrode is lower than the theoretical value and decreases with time, the pH meter has temperature compensation and Electrode slope compensation functions. These compensations, as well as pH positioning and correction, are automatically controlled and adjusted by a microprocessor.
Applications
Environmental protection, food, chemical, scientific research departments
Steps
1. Connect the Power Adapter
2. Install standard Electrode
3. Manual temperature compensation setting
4. Use standard calibrated specimens for calibrating
5. Begin measurement of solution pH value or mV value
Notice
• Operating Environment Temperature should be in the range of 0~ 40 ℃
• relative humidity should be less than 85%
• Electrode suitable for solution temperature measurement in the range of 5-60 ° C
• Pay attention to the maintenance and maintenance of Electrode
• Regularly calibrate with standard calibrated specimens
