CPS COLOR COROB D200 Technical Manual page 58

6-4
9000
8000
7000
6000
5000
4000
3000
2000
1000
Offset
0
0
For bellow pumps technology, the Offset is always a positive value and it is mainly related to the
rheological characteristics of the fluid and to its elasticity.
This model still supposes that, once the colorant flow has begun, the volumetric efficiency is constant,
whereas in real working conditions we have to consider that this is not always true; for this reason the
model implemented in the calibration procedure of CorobTECH is a little bit different.
The program calculates the MPXs and Offsets of a series of segment that try to reproduce the non-linearity
of the circuit.
1200
1000
800
600
400
200
0
0 0,2
The program calculates the values of MPX and Offset of the line that can be drawn between each couple of
points present in the calibration file. So at the end of calibration we will have a series of MPX and Offsets
and the volumes between which they will be used.
2 4
Dispensed volume (ml)
0,4 0,6 0,8
Dispensed volume (ml)
MPX
6 8
1 1,2 1,4
COROB™ AUTOMATIC DISPENSERS
10 12
1,6 1,8 2