Overview
LEICI PHSJ-4F pH meter is a High Accuracy laboratory analytical instrument, using color high definition LCD screen, supports pH, mV and temperature Multi-Parameter measurement, with intelligent detection, data management and firmware upgrade functions, GLP standards, suitable for scientific research, teaching and industrial acid alkalinity analysis.
Features
1. Color high definition LCD screen, clear display
2. Three resolutions are available: pH supports 0.001pH, 0.01pH and 0.1pH, mV supports 0.01mV, 0.1mV and 1mV
3. Temperature units available: ° C and ° F
4. Support functions such as boot self-diagnosis, automatic shutdown, power-off protection and factory reset
5. Support firmware upgrade function, allowing function expansion and personalized requirements
6. Support IP54 Protection Ratings
7. Standard triple compound pH Electrode, Electrode bracket, dust cover and calibrated buffer solution
8. Intelligent determination of endpoints, support automatic readings, timed readings, timed interval readings, manual readings
9. Support automatic/manual temperature compensation
10. Support 1-5 point pH Electrode Calibration
11. Automatically identify 5 groups of standard buffer solutions such as GB, DIN, NIST, USA, MERK, etc., support standard solution group management, and support custom pH buffer solution and standard solution group
12. Support Data storage (500 sets), access, delete, transfer and print
13. Conform to GLP for data traceability
14. With RS-232 interface, support connecting standard RS-232 serial printer, directly print measurement results, print format optional
15. With USB interface, it is connected to the PC through dedicated communication software to achieve data transmission
Principle
The instrument detects the concentration of hydrogen ions in the solution by complex pH Electrode, converts the chemical signal into an electrical signal, and then displays the pH value through internal circuit processing; at the same time supports mV and temperature measurement, uses automatic or manual temperature compensation function to improve Measurement accuracy, and intelligent algorithms automatically determine the measurement endpoint to ensure data accuracy.
Applications
Scientific research laboratories, teaching experiments, industrial process control, environment monitoring, food testing, pharmaceutical industry
Steps
1. Connect the power supply and turn it on, and the instrument performs self-diagnosis
2. Select pH, mV or Temperature Measurement mode as needed
3. Use standard buffer solution for 1-5 point Electrode calibration, the instrument automatically identifies the type of standard solution
4. Immerse the Electrode in the solution to be tested and select the automatic reading, timed reading or manual reading method
5. Read and record measurement results, data is automatically stored
6. Connect to the PC through the USB interface to transfer data, or use the RS-232 interface to print the results
7. Clean Electrode After Use and Store Properly
Notice
• Electrode integrity before use to avoid violent collisions
• Use a fresh buffer solution when calibrating to ensure accuracy
• Electrode should be completely immersed in solution during measurement to avoid bubble interference
• Regularly calibrate Electrode to maintain instrument accuracy
• Electrode cleaning using deionized water to prevent contamination
• Electrode head needs to add dust cover during storage to keep it moist
• Avoid use in extreme temperatures or Humidity environments
• Power Adapter must meet specifications (9V DC, 800mA, internal positive and external negative)
• Ensure stable connection during firmware upgrade to prevent interruption
