Hello, I must first say that I think this is an excellent forum, I have found some usefull info in the past.(thanks) The question I have today is about loadcells, I am working in my companys R&D department I am trying to set up a pair of load cells to measure tension. The load cells I am using are brand new. They are rated at 100 lbs each , 10vdc exc. and the are 3mv/v. I have hooked up 1 l/c to a data aquisiton system I have which is currently meassuring the excitation voltage (10.0vdc) and the output (m/v). I am sure all my readings are correct, because I am using a calibrated multimeter for verification. I do understand that @ 30mv I should have 100lbs of tension and @ 0 lbs I should have 0 mv or close to. I was told with no load there should be no more that .3 mv positive bias ( which is fine I am reading .08 - .15mv). One question is: does this change the scaling? is it not now 0-30mv? also when I hang a weight (calibrated 5.005lbs +/- .001 ) I get about 1.95 mv which doesnt seem right I think I should be getting about 1.5 mv. I also tried hanging a 25 lb weight and got a reading of 8.59 mv. which should been closer to about 7.5 mv (according to my math) I am trying to figgure out why my numbers arent meshing, Does any 1 have any ideas?