Contact Us
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Tel: +8618822802390
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E-mail: admin@gvda-instrument.com
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WhatsApp: 8618822802390
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Add: Room 610-612, Huachuangda Business Building, District 46, Cuizhu Road, Xin'an Street, Bao'an, Shenzhen
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605080900317405d.jpg)
Determining Factors and Variation Patterns of pH Value
Determining Factors and Variation Patterns of pH Value The determining factor of pH value. There are many factors that determine the pH value, but the main ones are the equilibrium
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605080857026c0fe.png)
Notes on pH Meter Measurement of Ultrapure Water
Notes on pH Meter Measurement of Ultrapure Water Due to the unique characteristics of ultrapure water, it is very difficult to measure the pH value online with a pH meter. In pract
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605080853220fe63.jpg)
How to replace the battery of a pen-type pH meter:
How to replace the battery of a pen-type pH meter: The pen type pH meter has a black board with a switch on it. Gently pull it out without breaking the wires, and you can see four
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260508084026902f4.png)
Why must the electrode of a pH meter be calibrated regularly?
Why must the electrode of a pH meter be calibrated regularly? After using the pH electrode in the pH meter for a period of time, the asymmetric potential will undergo significant c
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07
May
2026
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Three Main Structural Components of pH Meter (Acidity Meter)
Three Main Structural Components of pH Meter (Acidity Meter) The pH meter (acidity meter) consists of three main parts Industry professionals know that pH acidimeter is a commonly
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260507091514754dd.png)
Methods for Reducing Measurement Errors of pH Meters
Methods for Reducing Measurement Errors of pH Meters 1. Inspection of pH meter When laboratory personnel use an acidimeter to measure the pH value of a solution, if they do not tru
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260507090835283e5.png)
Matters Needing Attention During pH Meter Measurement
Matters Needing Attention During pH Meter Measurement Before performing the operation, the integrity of the electrodes should be checked first. At present, most of the electrodes u
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260507090421b48e3.png)
Preparation and Application of Standard Buffer Solutions for pH Meters
Preparation and Application of Standard Buffer Solutions for pH Meters The pH value of the standard solution is known and achieves the specified accuracy. The pH value of the stand
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605070856278dc20.jpg)
Why Must pH Electrodes Be Calibrated Regularly?
Why Must pH Electrodes Be Calibrated Regularly? After a period of use, the asymmetric potential of the pH electrode will change significantly, so regular calibration is mandatory.
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n2026050708512820ffa.png)
Why Must pH Electrodes Be Soaked Before Use?
Why Must pH Electrodes Be Soaked Before Use? The PH electrode must be soaked before use, because the PH bulb is a special glass membrane. There is a thin layer of hydrated gel on t
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605070844360a835.jpg)
Standard Operating Procedure for Use and Maintenance of pH Meters
Standard Operating Procedure for Use and Maintenance of pH Meters At present, the electrodes used in the laboratory are composite electrodes, which have the advantages of being eas
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n2026050708424705254.png)
pH Meter Installation and Maintenance
pH Meter Installation and Maintenance There are two installation methods for pH meters: flow-through and immersion. Generally, immersion installation is used in sewage treatment pl
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605070840349606c.jpg)
Application of pH Meters in Wastewater Treatment
Application of pH Meters in Wastewater Treatment The acidity or alkalinity of any solution can be expressed in terms of hydrogen ion concentration. Due to the ionization effect of
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07
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605070835230da7e.png)
Selection of pH Meter Acidity-Alkalinity Sensor Electrodes
Selection of pH Meter Acidity-Alkalinity Sensor Electrodes 1. Selection of shell material: The pH electrode casing generally adopts two types: PC plastic (polycarbonate) casing and
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06
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605060927514c446.png)
How to Select a pH Meter
How to Select a pH Meter As is well known, various fields such as industry, agriculture, scientific research, and environmental protection involve pH meters. When it comes to pH me
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06
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260506092356b373e.png)
The Method of pH Meter Calibration
The Method of pH Meter Calibration When a pH meter is not used for a long time, the pH electrode must be activated. The activation method is to soak it in a 3mol KCL solution for 2
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06
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260506091956512d2.jpg)
Industrial pH Meters: Maintenance and Calibration
Industrial pH Meters: Maintenance and Calibration (1) In areas with significant temperature differences, pH meters must be equipped with temperature compensation to eliminate the i
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06
May
2026
![[[TitleNews]]](/uploads/25961/info/n2026050609150729309.png)
Difference Between Acidimeter and pH Meter
Difference Between Acidimeter and pH Meter The acidity meter and pH meter are the same, and are high-precision industrial online automatic continuous detection of acidity and alkal
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06
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605060909299917c.jpg)
What Are the Common Misunderstandings in Using a pH Meter
What Are the Common Misunderstandings in Using a pH Meter 1, Measurement parameters of pH meter Since a pH meter is used to measure the acidity or alkalinity of a solution, it can
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06
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260506090400ef873.png)
Calibration Steps of pH Meter
Calibration Steps of pH Meter 1. Transfer standard buffer solutions with pH values of 4.01, 7.00, and 10.01 to clean and dry 50mL small beakers. 2. Press the power button to turn o