Error Diagnostics of Eccentric Loadings of Single Point Load Cells
If the load is applied eccentrically (not in the centre of the load cell), an error
can appear. This error is maximum ± 0,0000085 % / cm.
Example: Platform size 80 x 60 cm.
If a load is applied and its centre of gravity is in a radius of 25 cm from the load
cells centre (r = 25 cm), the indicated signal can show an error of
25 cm x 0.0000085 % / cm = 0.00002125 %.
In clearer values:
Load Cell Capacity
Load applied
Error ±
050 kg
050 kg
0.011 kg
070 kg
070 kg
0.015 kg
100 kg
100 kg
0.021 kg
150 kg
150 kg
0.032 kg
200 kg
200 kg
0.043 kg
300 kg
300 kg
0.064 kg
500 kg
500 kg
0.106 kg
600 kg
600 kg
0.128 kg
635 kg
635 kg
0.135 kg
To reduce such an error, the load should be applied – if possible – in the centre
of the platform (directly over load cell), or well-proportioned all over the platform.
Extreme eccentric loadings should be avoided.
They not only create errors in the readings, but can also damage the load cell
due to the leverage effect.
This can be seen when the zero signal changes, so the tare value.
