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Inline Weigh Scale “rectangular wave” output

thread698-454662

Inline Weigh Scale “rectangular wave” output

Inline Weigh Scale “rectangular wave” output

(OP)
I have a inline weigh scale producing a “rectangular wave” output for weight over time... I am confident the product is not actually changing weight like this. The bandwidth of the waves is generally 3.5-5 minutes. What can possibly be causing this?

RE: Inline Weigh Scale “rectangular wave” output

What kind of output should the weigh scale produce?

RE: Inline Weigh Scale “rectangular wave” output

What is the offset of the step, in % of full scale reading?

The time scale suggests a thermal time constant...but just guessing.

RE: Inline Weigh Scale “rectangular wave” output

Do you have a digital system collecting the data? If it is a small step it might be an A/D flipping state.

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