How to define load cell accuracy to create weighbridge with 5kg resolution?
Views: 3481 Author: Site Editor Publish Time: 2020-04-14 Origin: Site
Now we use 8pc canister compression load cells, each one is with capacity 30ton.
ｖmin≤e1*R/√N (Vmin load cell verification value; e1 scale verification value; N load cell quantity for scale)
ｖmin≤5kg*1/√8
ｖmin≤5kg*1/2.8284
ｖmin≤1.7678kg
Y=Emax/Vmin
=30000kg/1.7678kg
=16949
According to criterion of OIML R60 and R76
Vmin≤e
So we need to select 1.5kg as load cell’s Vmin
Y=30000kg/1.5kg
=20000
ZCT≤7ppm/℃
OIML C5 at least.
