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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09
May
2026
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Why Industrial Online pH Meters Require Regular Calibration
Why Industrial Online pH Meters Require Regular Calibration The accuracy and lifespan of industrial online pH meters depend on the electrode of the industrial online pH meter, and
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260509090316e923c.png)
What does two-point calibration of a pH meter mean?
What does two-point calibration of a pH meter mean? For precision pH meters, in addition to "positioning" and "temperature compensation" adjustments, there is a
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09
May
2026
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Overview & Troubleshooting for Industrial pH and Conductivity Meters 术语说明
Overview & Troubleshooting for Industrial pH and Conductivity Meters Classification of acidity meters and industrial pH meters: Whether used in laboratories or industrial sites
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260509085541c6e5a.png)
How to Verify the Accuracy of a pH Meter
How to Verify the Accuracy of a pH Meter Scope of application 1.1 This method is applicable for the determination of pH values in drinking water, surface water, and industrial wast
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605090851335047b.jpg)
How to Check Whether a pH Meter Is Accurate
How to Check Whether a pH Meter Is Accurate How to check if the pH meter is accurate? The reliable and simplest method is to use a pH standard buffer solution for calibration. Take
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n2026050908491973c55.png)
Factors Affecting Measurement Error of Online pH Meters
Factors Affecting Measurement Error of Online pH Meters One of the common electrochemical analysis instruments in pH chemistry laboratories. But users are prone to significant erro
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n2026050908473179efb.jpg)
Key Points for Use and Maintenance of pH Meter Electrodes
Key Points for Use and Maintenance of pH Meter Electrodes (1) The electrode must be calibrated with a standard buffer solution with a known pH value before measurement, and the clo
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605090844574138b.png)
General Inspection Methods for pH Meter Glass Electrodes
General Inspection Methods for pH Meter Glass Electrodes 1. General inspection methods for glass electrodes (1) Check the zero potential setting of the pH meter in the "mV&quo
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260509084122e7fb4.jpg)
Basic Knowledge of Maintenance and Inspection for pH Meter Electrodes
Basic Knowledge of Maintenance and Inspection for pH Meter Electrodes 1. Storage of pH glass electrodes (most pH meters are equipped with glass electrodes) Short term: stored in a
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09
May
2026
![[[TitleNews]]](/uploads/25961/info/n2026050908360998bb1.png)
Common Problems of Inaccurate pH Meter Measurements
Common Problems of Inaccurate pH Meter Measurements 1. Does the online pH meter transmitter screen display "E.rr"? Answer: PH exceeds the range. Possible: Indicates that
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08
May
2026
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Two-point Calibration of pH Meter (pH Meter Instrument)
Two-point Calibration of pH Meter (pH Meter Instrument) 1. Preparation work Prepare three beakers each containing 250 milliliters of purified water (to ensure calibration accuracy)
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260508092142b32b0.png)
Introduction to Installation and Maintenance of pH Meters
Introduction to Installation and Maintenance of pH Meters There are two installation methods for pH meters: flow-through and immersion. Generally, immersion installation is used in
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260508091512ff508.png)
Grade of Precision pH Meters and Accuracy of pH Instruments
Grade of Precision pH Meters and Accuracy of pH Instruments The level of precision pH meter and the accuracy of pH instrument The level of instruments and their accuracy are not co
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n202605080910006f642.png)
Application of pH Meters in Soil Acidity-Alkalinity Measurement
Application of pH Meters in Soil Acidity-Alkalinity Measurement
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260508090705b5ce8.jpg)
Application of pH Meters in Aquaculture
Application of pH Meters in Aquaculture The pH value (acidity or alkalinity) is an important indicator of water quality in fishing ponds, which not only directly affects the physio
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08
May
2026
![[[TitleNews]]](/uploads/25961/info/n20260508090338c0252.png)
Causes, Hazards and Treatment Measures of Abnormal pH Value
Causes, Hazards and Treatment Measures of Abnormal pH Value 1. High or excessively high pH value (1) There is already a certain amount of algae in the new water, but the water qual
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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