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PH
Online sensors-PH
The PH online sensor is designed to measure the acidity or alkalinity (pH value) of a solution. It is widely used in water treatment, sewage treatment, aquaculture, environmental monitoring, and related fields. The sensor features a measurement range of 0–14 pH, 0.01 pH resolution, ±0.02 pH accuracy, a temperature range of 0–60°C, IP68 protection rating, and supports both submersible and flow-through installations. Under thermodyna..

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Product Introduction:

PH, also known as the hydrogen ion concentration index or acid-base value, is a scale for the activity of hydrogen ions in a solution, and it is 

generally used to measure the acidity or alkalinity of the solution.  


Under thermodynamic standard conditions, an aqueous solution with pH = 7 is neutral, while a pH < 7 indicates acidity, and a pH > 7 

indicates alkalinity.  


In chemistry, pH historically stood for "potential of hydrogen" (or "power of hydrogen") and is a scale used to specify the acidity or 

alkalinity of an aqueous solution. The pH of an acidic solution (with a higher ion concentration) is lower than that of an alkaline or basic solution. 

The pH scale is logarithmic and inversely proportional to the concentration of hydrogen ions in the solution.  


Where M = mol dm⁻³.  


At 25°C (77°F), a solution with a pH less than 7 is acidic, and a solution with a pH greater than 7 is alkaline. At this temperature, a solution with 

a pH of 7 is neutral (i.e., the concentration of H⁺ ions is the same as that of OH⁻ ions, such as pure water).


Product Application:

General water treatment, sewage treatment, aquaculture, surface water monitoring, environmental protection projects, cooling tower circulating water, sewage discharge monitoring in beverage and food industries, etc.

Technical Parameter:
ModelSOF-pH-60SOF-pH-65

Measuring

Range

0~14pH0~14pH
Resolution0.01pH0.01pH
Accuracy±0.02pH±0.02pH

Temperature

Range

0~60℃0~60℃

Protection

Rating

IP68IP68

Installation

Method

SubmersibleFlow-through


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NINA
Nina@welle-group.com