62
VERSION 10/2018 ORDER NUMBER DOC 2339321
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6.6.4 CALIBRATING THE SYSTEM
Calibrating A-component Calibrating B-component
B
A
SET
TwinControl
B
B
A
A
B_02744
B
A
SET
TwinControl
B
B
A
A
B_02744
The system is volumetrically calibrated in the factory, therefore it does not have to be calibrated with the
product. However, if a calibration is required, proceed as follows:
1. The product to be calibrated is rst conveyed manually as far as the gun.
2. Set the pump pressure to 0.5 MPa; 5 bar; 73 psi and select the nozzle so that the product ow rate
corresponds to the subsequent production process.
3. Start the calibration process for the A-side with the [Start] button.
4. A minimum of 5 pump double strokes are discharged into a measuring cup via the gun (use tubing to
protect against overspray if necessary). The ow rate measured by the controller is shown on the display.
5. Press the [STOP] button.
6.
The quantity discharged into the measuring cup in cm
3
is entered by pressing [SET] and [+] [-] and
conrmed by pressing [SET].
Interrupting process: The calibration process can be interrupted without saving by pressing the [Stop]
button.
7. The controller has now calculated and saved the new K-factor and displays it.
8. Repeat the calibration in order to check it.
Large deviations may be due to the following error causes:
– air in the lines
Fill the lines with product and check the suction system.
– large proportion of air bubbles in product in measuring cup
Determine product weight with
scale and calculate the volume based on the density.
9. Calibrate the B-component in the same way as the A-component.
10. The K factor can be entered directly for the ushing pump (in cm
3
per double stroke).
11. Flush system.
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