Hello I have 4 load cell from 2 different manufacturers. The one manufacturing has an arrow on the side showing the load directions. The other one does not. If a load cell is mounted upside down, does this really matter? Does it just come out in the calibration wash? If not, can I just multiply the reading by a negative one? Also, It there a way for me to ring out the wiring? The load cells I have a 1 Kg bar type load cells. The load cell link is below. You advice would be appreciated.