Go Down

Topic: load cell (Read 569 times) previous topic - next topic

TECHNO_TEACHER

May 28, 2017, 02:00 am Last Edit: May 31, 2017, 01:03 am by TECHNO_TEACHER
How do I connect two four-wire load cells to the HX711

Please help.

wvmarle

Best guess, based on the very limited information provided: by soldering two wires to each of two load cells. Four wires, two load cells, and it's connected.
Quality of answers is related to the quality of questions. Good questions will get good answers. Useless answers are a sign of a poor question.

sdturner

What load cell?

If the loadcell is a raw strain gauge with 2 pairs of outputs then you would use a Half-Bridge circuit.

TECHNO_TEACHER

How do I connect two four-wire load cells to the HX711

Please help.

Wawa

No experience with this, but I would just connect the two in parallel.
Load cell voltages should average each other.
Leo..

ElCaron

How do I connect two four-wire load cells to the HX711

Please help.
Have you really just repeated your question word for word? E.g. instead of answering the questions you where asked? I hope you are not really a teacher ...

sdturner

What is the model number of the load cell?

knut_ny

#7
Jun 02, 2017, 09:25 am Last Edit: Jun 02, 2017, 09:47 am by knut_ny
If those ar two identical cells:

Cell A : red +V   , black -V
Cell B : red  -V  , black +V

Signal cables to inputs (A or B) on HX711   (polarity doesn't matter)

I guess u'll need 128x ampl. => use inputs A
----------
As we dont know exactly info about your cells.. Check datasheet for color coding
Ny

Wawa

@knut_ny
Two 4-wire load cells have four signal wires.
Leo..

knut_ny

#9
Jun 02, 2017, 02:29 pm Last Edit: Jun 02, 2017, 02:43 pm by knut_ny
sorry... didnt see the white wire in OPs drawing
...
connect cells parallel

red: +V , black -V
signals cables (also parallel) to port A
Ny

TECHNO_TEACHER


I do not understand the answers that English is not my first language.
Could you please explain by drawing on my project project

knut_ny

#11
Jun 06, 2017, 10:57 am Last Edit: Jun 06, 2017, 11:04 am by knut_ny
Ny


joebailey


picture link:
loadcells connection
I used this configuration and obtained good results. However, I did some adjustments to enhance the accuracy of my system. Thanks!

Go Up