ECOLAB EcoAdd Betriebsanleitung Seite 322

Control/software
Maximum metering phase
The maximum metering phase determines the upper limit of the metering stroke duration
in seconds after which the pump switches to the stroke/pause mode.
If the metering pump is operated together with an oval gear meter for dosing
monitoring, the metering speed of the pump must not be below the start-up
limit of the oval gear meter, otherwise exact dosing monitoring is no longer
possible.
The metering stroke duration of the pump is determined by the setting of the metering rate
(the smaller the metering rate the longer the metering stroke duration).
This means: When the upper limit is set for the max. metering phase in seconds, the lower
limit for the metering capacity in l/h is also fixed at the same time beyond which the pump
changes to stroke/pause mode.
If the metering capacity of the pump is now reduced to such an extent that the set limit of
the max. metering phase is exceeded, the pump automatically switches to Stroke/pause
mode.
This ensures that the metering stroke duration is not extended beyond the set limit and
that the metering speed of the pump cannot be set below the critical range for flow
detection.
Suggested max. setting of the metering phase
Max. metering capacity of pump [l/h]
Suggested max. metering phase [sec.] for operation with oval gear meter
Metering capacity [l/h] for recommended max. metering phase
(approx.- value dependent on calibration))
Start-up limit oval gear meter [l/h]
Factory setting max. metering phase: 30 sec.
8.8.15 Degas
Composition of degas system
1 2
7
6
5 4
Fig. 65: Composition of [Degas]
1 Metering line
2 Degas valve
3 Degas connector cable with connection
4 Suction tube
MAN046939 Rev. 6-10.2021
3
5
6
7
8
118
5 11
1,2 2,7
1,2 1,3
1,25 1,25
Metering tank
Pump head
Return line
Display for Degas EcoAdd installed/recognised.
30 50 120
0,7 1,4 0,7
13 12 45
12 12 45
8