Dosing Monitoring - Grundfos DME Serie Instrucciones De Instalación Y Funcionamiento

6.24 Dosing monitoring

The pump incorporates a dosing monitoring input (see connection overview in fig. 3).
2 x
3 x
Fig. 24
The pump can be fitted with a dosing monitor, which
detects ineffective dosing strokes.
The dosing monitor is designed to monitor the dosing
of liquids which may cause gas accumulation in the
dosing head, thus stopping the dosing process even
if the pump is still operating.
During the dosing process, the dosing monitor gives
pulse signals to the monitor input so that the pump
can compare performed dosing strokes (from
internal stroke sensor) with externally measured
physical strokes (from the dosing monitor). If an
external dosing stroke is not measured as a result of
the internal dosing stroke, this is considered a fault
that may have been provoked by empty tank or gas
in the dosing head.
The dosing monitor should be connected to the input
for dosing monitoring. This input must be configured
for dosing monitoring. Once the input has been set to
dosing monitoring and a dosing monitor has been
connected and set, the dosing monitoring function
will be active.
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