4x50 EtherNetIP.190129.1v4: User manual
WWW.EILERSEN.COM
Version: 2020-11-24, rev.: 1v4
Page: 19
4.1.4 System calibration of weighing system
Based on the uncalibrated system weight a system calibration can be made as
follows:
1)
Check that the weighing arrangement is empty. Zero the weighing sys-
tem.
2)
Place a known load (
CalLoad
) on the weighing arrangement.
3)
Calculate the calibration factor that should be multiplied on the uncali-
brated system weight in order to achieve correct showing as:
CalFactor = (CalLoad)/(Actual Gross)
After this the determined calibration factor is used to calculate the cal-
ibrated system weight as follows:
GrossCal = CalFactor * Gross
If the determined calibration factor falls outside the interval 0.9 to 1.1
it is very likely that there is something wrong with the mechanical part
of the system. This does not however apply to systems that do not
have a load cell under each supporting point. For example on a three
legged tank with only one load cell, you should get a calibration factor
of approximately 3 b
ecause of the two “dummy” legs.
