Overview
The FANGZHOU PHS-25 economical acidity meter is a precision pH measuring instrument controlled by a microprocessor. The instrument has dual pH and mV measurement functions, supports multiple calibration modes and manual temperature compensation, and is suitable for acid alkalinity detection in laboratories and industrial sites.
Features
1. Microprocessor control, touch button operation
2. Integrated circuit design
3. Measurement mode, pH (mV) value and temperature value display synchronously
4. Support one point, two point, three point automatic calibration
5. Manual temperature compensation function
6. RS232 interface output
Principle
The acidity meter detects the pH value of the solution through the Electrode Sensor, and the microprocessor processes and calculates the signal to achieve accurate measurement of pH and mV. The instrument adopts a high input Impedance design (≥ 1 × 1012Ω) to ensure measurement accuracy, and corrects the effect of temperature on measurement through temperature compensation function.
Applications
Laboratory testing, industrial site monitoring, water quality analysis, chemical production, environment monitoring
Standards
Chinese pH buffer standards (PH4.00, PH6.86, PH9.18)
Steps
1. Connect Electrode Sensor and Power Supply
2. Select the appropriate calibration mode (1/2/3 point calibration)
3. Use standard buffer for instrument calibration
4. Set manual temperature compensation parameters
5. Conduct sample measurements
6. Output data through RS232 interface
Notice
• Electrode is nondestructive before use
• Standard buffer is required for calibration
• Pay attention to temperature compensation settings during measurement
• Electrode interface clean and drying
• power requirements: DC9V, 300mA, internal positive and external negative
Avoid using instruments in extreme environments
