How to use handheld pH meter | ph probe

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How to use handheld pH meter


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HI98128 pH meter use

How to use handheld pH meter

How does a pH Probe Work? – Video


This short animated video briefly explains what pH is and how a pH sensor works.
pH is a numerical representation of the hydrogen ion concentration of a liquid. The pH scale runs from 1 to 14, where 7 is neutral, below 7 is acidic (the liquid contains an excess of hydronium ions) and above 7 is alkaline (the liquid contains an excess of hydroxyl ions). Wine, with a pH of 34, is therefore acidic; while soapy water, with a pH of 10, is alkaline.
pH sensors have a number of elements that are required for them to measure the pH of a solution. The most important part of a pH sensor is the end which is in contact with the liquid. The glass tip is a type of membrane on which a gel layer forms when the sensor is in an aqueous solution. A similar gel layer also forms on the inside of the membrane
glass, since the electrode is filled with an aqueous electrolyte solution (a buffer).
The hydrogen ions in and around the gel layer can either diffuse into or out of this layer, depending on the pH value and therefore the hydrogen ion concentration of the liquid. This causes a potential to build up on the outside of the glass. The sensor’s inner buffer has a constant pH value; therefore, the potential on the inner surface of the membrane remains the same during the measurement. The pH electrode potential, and hence the pH, is therefore the difference between the inner and outer charge of the membrane.
Also vital to the function of a pH sensor is the reference electrode. This provides a defined stable reference potential for the pH sensor potential to be measured against. To be able to do this, the reference electrode needs to be made of a glass which is not sensitive to the H+ ions in the solution. It must also be open to the sample environment into which it is dipped. To achieve this, an opening or junction is made in the shaft of the reference electrode through which the inner solution or reference electrolyte is in contact with the sample.
Find out more about pH and how pH sensor work by downloading our pH Theory Guide:
http://www.mt.com/global/en/home/library/guides/processanalytics/phmeasurementguide.html
Download the guide if you want to know:
Why are pH values measured?
What are the tools for pH measurement?
What is a pH measuring system?
How can you obtain an accurate pH measurement?
How can you maintain a reliable signal?
How do you select the correct pH electrode?
How do you maintain pH electrodes?
How do you clean pH electrodes?
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Visit METTLER TOLEDO Process and Analytics website: http://www.mt.com/pro
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How does a pH Probe Work? - Video

Build an Automated Hydroponic System


Learn how to build an automated NFT hydroponic system with a Raspberry Pi and my open source software Mycodo. I walk through the process from system construction and software configuration, to growing plants.
Watch until the end for some amazing timelapses of my plants maturing! Please like and subscribe if you found this interesting and would like to see more.
Build log and parts list: https://kylegabriel.com/projects/2020/06/automatedhydroponicsystembuild.html
Mycodo software: https://github.com/kizniche/Mycodo
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Build an Automated Hydroponic System

pH meter Arduino, pH Meter Calibration, DIYMORE pH Sensor, pH Sensor Arduino Code, pH of liquids


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Download:
pH meter Arduino Code, Libraries, and programming:
https://www.electroniclinic.com/phmeterarduinophmetercalibrationdiymorephsensorarduinocode/
Related Tutorials using the DFrobot pH Sensor Kit:
DFrobot pH Sensor with Arduino, working, calibration, and pH value of different liquids:
https://youtu.be/dfoH5iPWkwo
DFrobot pH Sensor with NodeMCU ESP8266 for water quality monitoring:
https://youtu.be/iymZQ_0Ijs

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Project Description:

This is the analog pH sensor kit from the DIY MORE which is a bit different from the one developed by the DFrobot which I have already used in some of my previous videos explaining what is a pH sensor, it’s working, Calibration, and how to use a pH sensor to find the pH value of different liquids. I also used the DFrobot pH sensor kit for measuring the water quality using the Arduino board and I also used the pH sensor kit from the DFrobot in an IoT based water quality monitoring system using the NodeMCU ESP8266 WiFi module. So, if you want to learn how to use the pH sensor kit from the DFrobot then I highly recommend watching my previous videos.

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pH meter Arduino, pH Meter Calibration, DIYMORE pH Sensor, pH Sensor Arduino Code, pH of liquids

pH tutorial – theory, measurement, electrode maintenance


pH: theory, measurement, electrode maintenance.
Guide to pH Measurement, download it here:
https://www.mt.com/global/en/home/library/guides/labanalyticalinstruments/pHTheoryGuide.html?cmp=smo_GLO_YT_LAB_OTH_Youtube_LAB_gtcCLldrcg4

Learn how to unpack, prepare for measurement, clean and store InLab® pH sensors. Correct pH measurement and troubleshooting is covered as well.
pH electrode handling
1/6 – unpacking and quality check
https://www.youtube.com/watch?v=qo5ppocH0rk
2/6 – preparation
https://www.youtube.com/watch?v=i3QoEZ1g2q8
3/6 – measure correctly
https://www.youtube.com/watch?v=wX2LiBTfDO8
4/6 pH electrode cleaning
https://www.youtube.com/watch?v=kto8Ifngxhs
5/6 – storing
https://www.youtube.com/watch?v=V6N7YuX3DtI
6/6 – troubleshooting
https://www.youtube.com/watch?v=W3aT99Mxn54

pH tutorial - theory, measurement, electrode maintenance

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