KM 251 en Operating the Pump
V1.0 37
8 Operating the Pump
8.1 Switching On/Off
Caution
Before switching on the pump, check that it is installed correctly. See the “Installa-
tion” and “Start-Up” sections.
8.1.1 Switching On the Pump
• Switch on the mains voltage
8.1.2 Switching Off the Pump
• Switch off the mains voltage.
8.2 Operating the Pump with Etron Profi Electronics (optional)
Note
For information about operating the pump with Etron Profi electronics, refer to the
“Etron Profi Pump Electronics” instruction manual.
8.3 Setting the dosing capacity
8.3.1 Setting the dosing flow and locking the stroke adjustment button
1. Remove cover (1l) from stroke adjustment button (L).
2. Use a screwdriver to loosen the locking screw (21) by approximately 2 rotations.
3. Increase/reduce the dosing flow while the pump is running.
3.1 Slowly turn the stroke adjustment button to the left / right to set the desired
dosing volume.
4. Depending on the application, tighten the locking screw (21) so that the stroke adjust-
ment button can still be turned/cannot be turned any more.
5. Replace cover (1l).
Caution
Pump cannot be operated if the stroke adjustment button is fully open! Depending
on the pump adjustment, this value may already be < 100 % on the scale display
for system pressures of > 100 bar.
Open the stroke adjustment button completely and then close by approx. 10% in
order to set the dosing flow to 100 %.
8.4 Electrical servomotor (optional)
To operate the servomotor, please refer to the instructions for the servomotor.
L Stroke adjustment button
1l Cover
2l Locking screw
3l Screw
4l Scale ring
3l 2l 1l
4l
3l
L
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