Sulzer ABS PC 441 - Page 28

81307063I
EN
24
Calculation of pumped volume
Function
• Pumpedvolume=Calculated pump capacity times Pump running hours
• Pumpedvolumecalculationtakesinconsiderationthepumpcurves,systemcurveaswellforthe
rpm and mains pressure. (if applicable)
Figure 3-1 Calculatedowwithandwithoutpumpandpumpsystemcurveentered
Logging of pumped volume
• Continuous accumulation
• Totalizedvaluesperdayandsevendaysbackintime
• Flowcalculationsbasedonvolumetriccalculationsadjustedtopumpcurves,systemcurvesrpm
andmainspressuredependingonconguration
Continuous volumetric calculations
Byenteringtheshapeandsizeofthepumppit,togetherwithanaccuratelevelmeasuringdevice,theunitwill
alwaysknowthemomentaryvolumeinthepit.
Anewpumpcapacitycalculationisperformedeverytimethepumpstartsalonewithnootherpumprunning.
Ifoneormorepumpsarealreadyrunning,thecontrollerwillusetheexistingnominalpumpcapacityforthe
outowcalculation.
Inowiscalculatedatapresetinterval.Outowisrecalculatedeverysecondandthevaluesarepresentedand
updated according to the parameters set.
Ifananaloginputsignalissetas“Outowmeter”thissignalwillbeusedforcalculationsofoutowandpump
capacity.
Levelboundariescanbeenteredforthepumpcapacitycalculation.
Level 2:
Abovethislevelitisnotusefulormaybenotevenpossibleto
calculatetheow.
For instance due to the volume in the incoming mains.
Level 1:
Belowthislevelitisnotusefulormaybenotevenpossibleto
calculatetheow.
Forinstance,dependingonthelevelforthepumpssuctionpoint.
Level 2
Level 1