7. Calibration
It is important that the pump is calibrated after
installation to ensure that the correct value (ml/h or
l/h) appears in the display.
The calibration can be carried out in two different
ways:
•
Direct calibration
. The dosed quantity of 100
strokes is measured directly. See section Direct
calibration.
•
Check calibration
. See section
Check calibration.
1
2
3
4
2
TM077984
Pos. Description
1
The pump performs 100 dosing strokes
2
Operating display
3
Set value.
See section Check calibration
4
Operating display without changes
Related information
7.1 Direct calibration
7.2 Check calibration
7.1 Direct calibration
Before calibration, make sure that:
•
the pump is installed with foot valve, injection
valve, etc. in the existing system.
•
the pump is running at the counter pressure it is
supposed to operate at (adjust the counter
pressure valve, if required).
•
the pump is operating with the correct suction lift.
To carry out a direct calibration, proceed as follows:
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.
Q
1
TM027067
6. Go to the calibration menu, see section 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
.
34
English (GB)
Summary of Contents for DME 150 AP
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