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Don’t use the other two load cells. I think with two AD and with one normal and one reversed load cell is easier. Just a 1nF or 10nF from the inputs wd620an the AD to ground.

ADAN + Weight sensor

Zd620an a weight in the middle of the bathroom scale and almost nothing should happen, you should only see temporary a change in the value. The output of the bridge goes into both inputs of the AD I think it is called a half-bridge. That is why such wires can be connected to both inputs of the AD Can you make a schematic, and a photo how the load cells are connected?

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However, I’m not convinced, since other load cells do use the as620an wire as output.

AD620AN Analog Devices, Instrumentation Amplifier

You can reduce the noise with a capacitor. I read that the analog output voltage change could be reversed, by exchanging the power wires to the load cell.

Can you measure the resistance? Here is some info for a 3-wire load cell: Are the weight sensors so called “load cells”?

ADAN | ADAN Analog Devices, Instrumentation Amplifier | RS Components

Why did you connect the load cells that way to the AD? Reverse one load cell exchange the gnd and aad620an of that load cell and you should measure something with the weight. This is the ‘real’ link to the AD If you use just one load cell directly to the AD, you need resistors or a potentionmeter for the other input. Thanks for the photo, ac620an I don’t know how the sensors are connected to the AD Because one signal is going into the normal input and the other in the inverted input of the AD, they should cancel each other out.

Your description makes me think that it is not okay. Some load cells have 4 wires two outputs.

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So I assume you have already adapted your wiring, with the red wires to the AD You have only 1 output wire. In that case you only need two AD It is not possible to connect two load cells parallel by connecting the analog outputs to each other.

Sorry for the mistake, the red wire seems to be the analog output.

Can you do this test: So the AD gets one normal and the other input pin with a reversed signal. Did you see an example like that? With weight on it, one output gets higher, and the other output gets lower.

Hi, ad60an currently working on a project with weight sensors.

But since the AD has a seperate gain resistor, you could also connect the output to the other input. In that case you need 4 AD Connect two load cells to the AD, each to an input.

Reference is not grounded.