Inline Weigh Scale “rectangular wave” output

Question

Inline Weigh Scale “rectangular wave” output

BSB78 (Chemical)

(OP)

13 Jun 19 01:46

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?

danw2 (Industrial) · Answer 1 · 2019-06-13 14:08:12

What kind of output should the weigh scale produce?

btrueblood (Mechanical) · Answer 2 · 2019-06-13 15:05:54

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

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

IRstuff (Aerospace) · Answer 3 · 2019-06-13 17:25:38

Part number? Datasheet?

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BrianE22 (Specifier/Regulator) · Answer 4 · 2019-06-13 20:00:45

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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Inline Weigh Scale “rectangular wave” output