4 Function description
The ‘EcoAdd’ are diaphragm metering pumps powered by an electric motor to transport
clean, non-abrasive metering media.
The stepper motor technology used here means that both, the suction stroke duration and
metering stroke duration, can be adjusted separately
.
This results in a variety of benefits such as a large setting range, virtually continuous and
low-pulsation metering, and even the option to respond to high viscosity or challenging
intake conditions.
Selecting a corresponding ‘Dosing mode’ makes it possible to extend the suction duration
per stroke (suction stroke duration) and thus adjust the metering to high product
viscosities or challenging suction conditions.
This extension of the suction stroke duration simultaneously results in a reduction in the
max. metering output.
Metering time setting:
Fig. 1: Time distribution (t) of the suction (s) and metering stroke (p) with dosage rate settings of 100, 50 and 25 %
Metering modes S-standard, M-medium and L-low:
Fig. 2: Time distribution (t) of suction (s) and metering stroke (p) with metering modes S-standard, M-medium and L-low
Function description
34417102276 Rev. 5-02.2020
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