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Home / Instruments & Automation / Water Quality / PH Measurement / Industrial Pure Water PH Sensor
Industrial Pure Water PH Sensor
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Shanghai BOQU Instrument Co., Ltd
Shanghai, China
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Basic Principle of pH Electrode 
In PH measurement, the used pH electrode is also known as the primary battery. The primary battery is a system, whose role is to transfer chemical energy into electrical energy. The voltage of the battery is called the electromotive force (EMF). This electromotive force (EMF) is composed of two half-batteries. One half-battery is called the measuring electrode, and its potential is related to the specific ion activity; the other half-battery is the reference battery, often called the reference electrode, which is generally interlinked with the measurement solution, and connected to the measuring instrument.
Why monitor the pH of water?
pH measurement is a key step in many water testing and purification processes:
● A change in the pH level of water can alter the behavior of chemicals in the water.
● pH affects product quality and consumer safety. Changes in pH can alter the flavor, color, shelf-life, product stability, and acidity.
● Inadequate pH of tap water can cause corrosion in the distribution system and can allow harmful heavy metals to leach out.
● Managing industrial water pH environments helps prevent corrosion and damage to equipment.
● In natural environments, pH can affect plants and animals.

Model No PH8022
Measure parameter pH, temperature
Temperature range 0-60℃
Features High temperature and corrosion resistance; Fast response and good thermal stability; It has good reproducibility and is not easy to hydrolyze; Not easy to block, easy to maintain
Measuring range 0-14pH
Temperature range 0-60℃
Compressive strength 0.6MPa
Slope ≥96％
Zero point potential E0=7PH±0.3
Connection Low-noise cable goes out directly
Internal impedance 150-250 MΩ (25℃)
Material Natural Tetrafluoro
Profile 3-in-1Electrode (Integrating the temperature compensation and the solution grounding)
Installation size Upper and Lower 3/4NPT Pipe Thread

Measurement of all kinds of pure water and high-purity water.

Features of PH Electrode
●It adopts the world-class solid dielectric and a large area of PTFE liquid for junction, non-block, and easy maintenance.
● Long-distance reference diffusion channel greatly extends the service life of electrodes in the harsh environment
● It adopts PPS/PC casing and the upper and lower 3/4NPT pipe thread, so it is easy to install and there is no need for the jacket, thus saving the installation cost.
● The electrode adopts a high-quality low-noise cable, which makes the signal output length more than 20 meters free of interference.
● There is no need for additional dielectric and there is a little amount of maintenance.
● High measurement accuracy, fast responding, and good repeatability.
● Reference electrode with silver ions Ag/AgCL
● Proper operation shall make service life longer.
● It can be installed in the reaction tank or pipe laterally or vertically.
● The electrode can be replaced by a similar electrode made by any other country.

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