How to use handheld pH meter
นอกจากการดูบทความนี้แล้ว คุณยังสามารถดูข้อมูลที่เป็นประโยชน์อื่นๆ อีกมากมายที่เราให้ไว้ที่นี่: ดูความรู้เพิ่มเติมที่นี่
HI98128 pH meter use
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:
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?
Connect with METTLER TOLEDO online:
Visit METTLER TOLEDO Process and Analytics website: http://www.mt.com/pro
Find METTLER TOLEDO on LinkedIn: https://www.linkedin.com/company/mettlertoledo
Find METTLER TOLEDO on Facebook: https://www.facebook.com/mettlertoledo
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
If you really liked this video and want to support more being made, feel free to pitch a few dollars by becoming a pervideo Patron: http://www.patreon.com/kylegabriel
Or become a sponsor on GitHub: https://github.com/sponsors/kizniche
How I make my videos:
Sony a6400 Camera: https://amzn.to/39bLyQT
LED Lighting: https://amzn.to/33dGCqE
Camera Cage: https://amzn.to/360GVHl
Links above include affiliate commission or referrals. I’m part of an affiliate network and I receive compensation from partnering websites.
Hydroponic Automation Mycodo
pH meter Arduino, pH Meter Calibration, DIYMORE pH Sensor, pH Sensor Arduino Code, pH of liquids
Xmas Surprise‘s Back, ALLPCB
Random Secret Coupon for Any Order Over $500 Before 24th December, 2020
$10, $20, $50 or $500 Coupon Immediate Use, for more information visit:
pH meter Arduino Code, Libraries, and programming:
Related Tutorials using the DFrobot pH Sensor Kit:
DFrobot pH Sensor with Arduino, working, calibration, and pH value of different liquids:
DFrobot pH Sensor with NodeMCU ESP8266 for water quality monitoring:
Support me on Patreon and get access to hundreds of projects:
sign up for a free account and download hardware designing and programming books:
free Amazon Business Account:
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.
Amazon Purchase links:
pH Sensor Kit DIYMORE
pH Sensor Kit DFrobot
128×64 SSD1306 Oled display Module
LM7805 Voltage Regulator:
DC Female Power Jack:
Other MustHave Tools and Components:
Arduino Uno, Nano, Mega, Micro \”All types of Arduino Boards\”:
Top Arduino Sensors:
Super Starter kit for Beginners
Top Soldering iron kits: \”best\”
Top Portable drill machines:
DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I will receive a small commission. This helps support the channel and allows me to continue to make videos like this. Thank you for your support!
For More Projects and Tutorials visit our Website:
Follow me on Facebook:
About the Electronic Clinic:
Electronic Clinic is the only channel on YouTube that covers all the engineering fields. Electronic Clinic helps the students and other professionals to learn electronics designing and programming. Electronic Clinic has tutorials on
gsm based projects
Bluetooth based projects
desktop application designing and programming
Project Related Tags:
PH SENSOR ARDUINO
ARDUINO PH SENSOR
PH METER ARDUINO
ARDUINO PH METER
ARDUINO PH METER CODE
PH SENSOR ARDUINO CODE
PH SENSOR CALIBRATION
HOW TO CALIBRATE PH SENSOR
DIY MORE PH SENSOR
PH SENSOR FROM DIYMORE
DIY ARDUINO BASED PH METER
PH SENSOR WITH ARDUINO
PH SENSOR CALIBRATION
CALIBRATE PH SENSOR
EASIEST WAY TO CALIBRATE PH SENSOR
PH SENSOR KIT BY DIYMORE
PH SENSOR KIT BY DFROBOT
pH tutorial – theory, measurement, electrode maintenance
pH: theory, measurement, electrode maintenance.
Guide to pH Measurement, download it here:
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
2/6 – preparation
3/6 – measure correctly
4/6 pH electrode cleaning
5/6 – storing
6/6 – troubleshooting
นอกจากการดูหัวข้อนี้แล้ว คุณยังสามารถเข้าถึงบทวิจารณ์ดีๆ อื่นๆ อีกมากมายได้ที่นี่: ดูบทความเพิ่มเติมในหมวดหมู่Wiki