L
L
L
L
t
t
t
t
A.
B.
C.
F.
E.
P_G_0125_SW
L
t
D.
L
t
Fig. 35: Discharge stroke metering profiles with stroke L and time t (suction stroke shown as a dotted line)
11.2.4.2
‘Suction stroke’
‘Menu / Information
è
Settings
è
Metering
è
Suction stroke
è
...’
It is possible to selectively also slow the suction stroke with all
these metering profiles for the discharge stroke - see . In this way,
it is possible to prevent the main cause of inaccurate metering with
high viscosity feed chemicals, namely the incomplete filling of the
liquid end. With gaseous feed chemicals, the slow suction stroke
prevents cavitation and consequently increases dosing precision.
Set up /
‘Menu’
57