User guide

4.22 Dosing monitoring

A dosing monitor is available as an accessory. Sepa-

rate instructions are supplied with the monitor.

Fig. 23

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.

For every measured dosing stroke, the dosing moni-

tor gives a pulse signal to the level 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 ex-

ternal dosing stroke is not measured together with

the internal dosing stroke, this is considered a fault

that may have been provoked by empty tank or gas

in the dosing head.

TM02 2029 3201

Monitor mounted on the suction side of the pump

Dosing stroke measured