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8.1 Direct calibration
Before calibration, make sure:
• that the pump is installed with foot valve,
injection valve, etc. in the existing system.
• that the pump is running at the counter pressure
it is supposed to operate at (adjust the counter
pressure valve, if required).
• that the pump is operating with the correct
suction lift.
To carry out a direct calibration, proceed as follows:
Action Pump display
1. Prime the dosing head and the suction tubing.
2. Stop the pump. The green LED is flashing.
3. Fill a graduated glass with dosing liquid, Q
1
.
DME 60: approx. 1.5 l
DME 150: approx. 2.5 l
DME 375: approx. 6 l
DME 940: approx. 14 l
4. Read and note the quantity Q
1
.
5. Place the suction tubing in the graduated glass.
TM02 7067 0315
6. Go to the calibration menu, see section 6.8 Menu.
7. Press the button twice.
8. The pump is performing 100 dosing strokes.
9. The factory-calibration value appears in the display.
10. Remove the suction tubing from the graduated
glass and read Q
2
.
11. Set the display value to Q
d
= Q
1
- Q
2
.
12. Confirm with the button.
13. The pump is now calibrated and returns to the
operating display.
Set value
to Q
d
Operating display
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