Industrial Online pH Sensor for Water Treatment and Aquaculture
Adopt RS485 communication interface and standard Modbus protocol. Corrosion resistant shell，built – in PT1000 temperature sensor and compensation algorithm，applicable to all kinds of harsh working environment. Included with data analysis software，with calibration, recording, analysis, diagnosis and other functions.
Online pH Sensor Features
Industrial grade composite pH electrode, suitable for harsh working environment
Reference electrode double salt bridge design, with long service life
PT1000 temperature compensation，accuracy up to±0.1℃
Corrosion resistant shell，waterproof grade IP68 can be long-term underwater work
RS485 communication interface，standard Modbus protocol，easy to be integrated
Data analysis software，with calibration, recording, analysis, diagnosis functions.
The pH is defined as the negative logarithm of the hydrogen ion activity in the medium， used to measure the degree of acid and alkali. Hydrogen ions selectively permeate through the outer membrane，produce electrochemical potential，that is, the potential of the electrochemical boundary layer. The resulting electrochemical potential depends on the pH of the medium. The electrode is built with Ag/AgCl as reference electrode，its potential is stable, unaffected by the pH of the medium. The transmitter converts the measured voltage to the corresponding pH value based on the Nernst equation (Nernst).