I am a part of a biomedical engineering senior design group at Rutgers University. We are having trouble getting accurate readings from our force sensor (Load Cell - 200kg, Disc (TAS606)) when the applied weight is over 15 lbs. When we apply light weight, we get accurate readings. Is there a way to check if the load cell is blown? Do you know any possible ways to fix this?
Did you start with a calibration? Load Cell Amplifier HX711 Breakout Hookup Guide - SparkFun Learn
Disregard force/weight readings for now and focus on millivolt values as measured on your signal leads.
Measure the output at no load, then at 15 lbs, then 30.
The change from 0 to 15 should be the same as the change from 15 to 30.
Repeat for the remaining capacity, ensure the signal rises proportionally with the load.
If you don’t have this linearity and/or if the output stops responding to increasing load, the load cell and its mechanical installation need to be reevaluated.
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