how to check load cell !! load cell test !! load cell repair !!
How to Check the Load Cell with a Multimeter
Set the multimeter in DC millivolts and connect the output wires of the load cell to the multimeter. Supply a voltage of 5V or 9V DC at the excitation leads and place a test weight on the load cell. The multimeter will register a change in voltage measured across the load cell’s output.
How to Test a Load Cell
To test a load cell before putting it to use, you’ll need a multimeter and a voltage source. Measure the resistance of the input and output leads of the load cell by setting up the multimeter in Ohms. Compare the measurement values with the calibration certificate from the manufacturer to see if they closely match each other. Similarly, check the load cell for accuracy by measuring the millivolts signal from the input leads. With no force applied to the load cell, the value should be zero. Apply a calibrated dead weight as specified in the calibration certificate and compare the values again.
How to Measure Load Cell Output
Load cell output is measured using a digital meter. The digital meter connects to the output of the load cell. It converts the digital signals produced by the load cell into readable digital values. You can also measure the output of a load cell using a multimeter. However, a multimeter will delete the output voltage in millivolts, and will not convert it into force or weight.
How to Check Load Cell Resistance
A load cell test is performed using a digital multimeter. The digital multimeter is connected between the positive signal wire and the negative signal wire of the load cell. The output between them should be equal or to a value specified in the datasheet. This is the test for load cell output resistance. Now check the signal between the positive excitation wire and the negative excitation wire. They should be equal. This is the test for input resistance.
Load Cell Value Fluctuation
Load cell values can fluctuate due to several reasons. From physical damage such as shock loading and overloading for a longer duration to environmental conditions such as temperature, moisture, water ingress, or corrosion, the load cell is likely to produce erroneous output. Measurement values will also fluctuate if the cables break or if there’s a short circuit. To check what is causing fluctuations in the load cell value, perform a visual check to identify the fault location. Perform a zero balance check to identify if the strain gauge has undergone permanent deformation. An insulation resistance check can further help you identify if moisture is getting inside the load cell. Additionally, a bridge resistance check will determine if there’s a short circuit within the load cell.
Load Cell Zero Drift
Zero drift is the condition where zero measurements of the load cell change randomly under no-load conditions. It can also happen when the apparatus is loaded, and this phenomenon is called Drift. Several reasons such as mechanical errors, fluctuation in excitation voltage, and temperature variations could cause drift. To troubleshoot the load cell for zero drift, it is important to inspect the entire system.
Load Cell Negative Reading
Load cell negative reading occurs when the load cell is in an incorrect orientation. If the load cell is upside down, it would produce negative readings under loading. There is usually an arrow on the load cell that shows the direction of loading. A Load cell used to measure tension will not reflect negative reading if installed upside down and will result in an erroneous reading. However, if the load cell is installed correctly and the readings are still negative, verify the wire connection according to the color code specified by the manufacturer.
Load Cell Overload
Every load cell comes with rated capacity. Loading the load cells beyond the rated value overloads the load cell. The telltale signs of load cell overload are inconsistent display reading, reading not coming back to zero even after the load is removed, the dramatic change of zero balance, etc. Shock overload is one of the most damaging among overloads. Here the weight on the load changes to a significant degree in a very short period. Most load cells endure some overload and this value is called Safe overload. Anything beyond that can lead to permanent dam
Пікірлер: 105
Red & Black in put Green & white out put he
@jitubabusay2826
24 күн бұрын
Yes Yes yes
Very good 👍
Well explained
very usefull information
Nice concepts
Pahle pura knowladge lelo wrong video updates mt karo
Bahut sundar sir 🙏🙏
Good work
Very useful project, nicely explained. Great efforts. Thanks for sharing.
@engineeringconcepts
11 ай бұрын
So nice of you
There is a little bit of confusion in input-output terminals. Red +input Black -input Green +output White -output
@kellaprasad1914
11 ай бұрын
Iam explain.. Green..black...input terminal s ok Red ..white.....output terminals ok
@gangland6772
5 ай бұрын
You are l wrong @@kellaprasad1914
@elite_kshatriya823
4 ай бұрын
Red positve and black negative exciation voltage, green positive output and white negative output,loadcell giving output 2mv per volt.
Read and black input hai,or white and green output hai
good concept
आपने इस समस्या को सही ढंग से समझाया इसके लिए धन्यवाद
@MECH-SOLUTIONS
3 ай бұрын
😂
Apki waja se nera problm solve huwa thanx
@engineeringconcepts
2 жыл бұрын
Alws welcome
Loadcell me resistense okay hai but not ok working please send other type testing loadcell
Nice boss
Well knowledge
Boss ....Colour code and resistance depends on manufacturer and type..😊😊
red & black humesha input me reheta he.
Input aur output colour code pr depend nhi karta but aap regesistance check karke confirm kar sakte hai
Veryy Good
Nice explains
@saurabhmishra2050
3 жыл бұрын
Sir nice
Red +black- -exitation voltage green+white -signal output mili volt
Glat colour code select
Nice explanation sir.
@engineeringconcepts
Жыл бұрын
Keep watching
Superb
last me jo aap bole cornering bole kya agar cornering bole hain to ye kese kiya jata he....kya he cornering?
Nice
GOOD VIDEO
@engineeringconcepts
8 ай бұрын
Thanks!
What to do when the wires are removed from the load cell? It seems no one knows how to fix this type of issue.
Nice .... good luck
@engineeringconcepts
11 ай бұрын
Thanks
I see one video about loadcell, he is telling that red and black wire is input. which is correct?
@PappuSingh-vz1ud
2 жыл бұрын
Red 🔴 and black input u right this man worng information
Input/Output resistance same kaise hoga?? Input resistance high hota hai, output resistance Kam hota hai
Sir agar load cell k exitation voltage 10v likhy hon 0r weighing indicator voltage load cell ko 5v de rha ho to kia ye thk hai kam chal jay ga ya nh
Sab loadcell me ye do kalar ke input hoga?
Need More videos on loadcell nd pcb
Input and output wire kesy samaj ayega.r+b input pirbe tom bhatarahy w+r input
100kg machine ko 200 kg capacity load cell fix kar sakth hai?
SLI me hierr load ke jagha aarha hai kay problem hai
You provided wrong information about connection details, not matching with the drawing you shown and as a result you did not get desire result when connectied with battery.
Hey there, thank you so much your valuable content. We are working on a project so we need your help regarding that and it's really urgent. Can we please connect over a call for discussion.
@engineeringconcepts
2 жыл бұрын
Ok what's ur project topics
Load shel ko e.o.t crane me connection kaise krte h
Sir 3o kg wala kata hai light jane ke bad 2o gram - me so keta eskké bare me batae
Signal mv pe check hota hai DC V pe nahi .
1 ton ke weigh me circuit kaisek ur callibration kaise kare
Bhai aadha adhura gayan leke video upload mat kia karo yaar
Kitne k g ka hai
60/100 to 15000 Lode cell cek Batari It working OK
It's wrong information about wiring
How to calibrate load cell by 4 to 20 mA
Wet raning kar raha hai kaise thik kare
Wrong information please read or study then upload clips
Hydrolic load cell how to work btaye
Aap ne Metter glt lgaya tha is liya _ me tha output but aap ka video acha tha ji
@engineeringconcepts
2 жыл бұрын
Thank u
Brother please English subtitles tq
Load cell ka healthiness kaise check karna hye
Agar Koi load nhi hai load cell per aur input me 12v injecte kiya aur output me negative voltage dikhta hoga to kya karna hai sir
@mohit777100
2 жыл бұрын
Madam ji multimeter probes ki polarity change kro positive me aa jayega voltage
@PradipranjanBiswas
3 ай бұрын
Change polarity
What is the common bridge resistance value of load cell
@rajkishorepradhan463
9 ай бұрын
Ans plz ???
@engineeringconcepts
9 ай бұрын
Yes tell me
@rajkishorepradhan463
9 ай бұрын
@@engineeringconcepts i think you haven't understand the question clearly
@elite_kshatriya823
4 ай бұрын
290
Hi
@engineeringconcepts
Жыл бұрын
hello
This is an extraordinary piece. There was a book I read with related content that shifted my perspective. "A Life Unplugged: Reclaiming Reality in a Digital Age" by Theodore Blaze
Usefull information
@engineeringconcepts
3 жыл бұрын
Thanks
9volt input me 1 volt DC kyun
Please sir
🎉😂❤😂🎉😂❤
Thank you, but how to repair it when load cell is measuring continually? For example you put 2kg weight, the load cell measure 2000.00 .01 .02 03 .5 .... No stop. Thank you sir
Hii
Wrong information
Please speak english
Speak in English please , why you don't speak in English in order to all people benefice of the knowledge .
@engineeringconcepts
Жыл бұрын
yes sir
@seifabdaoui4270
Жыл бұрын
@@engineeringconcepts thank you so much , when you do the video in English. Please !
@engineeringconcepts
Жыл бұрын
within 3 0r 4 days
@seifabdaoui4270
Жыл бұрын
@@engineeringconcepts thank you , waiting
Aaap na no degea na sir
@engineeringconcepts
2 жыл бұрын
88710 04043
You are sumthing wrong.
go and study then explain
Short of knowledge, shouldn’t make any video without knowing correctly.
Black and red input and green and white output ok
Wrong knowledge
Nice
@engineeringconcepts
Жыл бұрын
Thanks