Batch; Anti-Cavitation - Grundfos DME Instrucciones De Instalación Y Funcionamiento

4.13 Batch

The pump is dosing the set quantity in batches at the
maximum capacity or the set maximum capacity, see
section 4.15.
The quantity is dosed every time the pump receives
an external pulse.
If the pump receives new pulses before the previous
batch is performed, these pulses will be ignored.
Quantity per batch
Pulse
Fig. 13 Dosed quantity per pulse
The setting range is the same as for Timer, see
section 4.12.
Operating display
Fig. 15 Anti-cavitation function
Pulse
Set value
per batch
Fig. 14 Batch mode

4.14 Anti-cavitation

The pump features an anti-cavitation function. When
this function is selected, the pump extends and
smooths its suction stroke, resulting in softer prim-
ing.
The anti-cavitation function is used:
• when pumping liquids of high viscosity,
• in the case of a long suction tube and
• in the case of a high suction lift.
The maximum pump capacity is reduced when this
function is selected. See section 2. Technical data.
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