ProMinent gamma/ X User Manual

L
L
L
L
L
t
t
t
t
t
A.
B.
C.
E.
D.
P_G_0074_SW
Fig. 33: 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 conse‐
quently increases dosing precision.
Set Up /
‘Menu’
52

ProMinent gamma/ X Specifications

General

Protection class	IP65
Max. Pressure	25 bar
Power supply	100-230 V, 50/60 Hz
Material of pump head	PVDF, Stainless steel
Temperature range	-10 °C to +45 °C
Type	Diaphragm dosing pump
Stroke length	Adjustable
Stroke frequency	max. 180 strokes/min
Materials in contact with the medium	PVDF, PTFE, stainless steel
Control	Manual, external control via contacts or 0/4-20 mA signal
Control Options	External, potential-free contacts, 0/4-20 mA
Dosing Accuracy	±2%