Grundfos Alldos DDI-209 User Manual - Industry Surplus Australia

9.6.1 Calibrating pumps with Plus 3 system(internal calibration)1. Before opening the second menu level, close theisolating valve (D) on the calibration tube (E) andallow the pump to dose a couple of strokes sothat the liquid level is within the scale.2. Stop the pump.3. Slowly open the isolating valve (D) and allow thedosing medium to rise to the top of the scale inthe calibration tube. Close the isolating valve (D).4. Open the calibration menu.– "OFF CAL" appears in the display.1. Press the "Up" button.– "ON CAL" appears in the display.2. Press the "Start/Stop" button.– Calibration is started. The LED flashes greenand "Run" flashes in the display.3. Press the "Start/Stop" button to stop thecalibration when the liquid level reaches thebottom of the scale.– The LED lights up red.4. Press the "Start/Stop" button.– The current calibration value is displayed(not with replacement circuit boards!).5. Use the "Up" and "Down" buttons to enter thecalibration value (read volume in ml).The pump electronics automatically calculates thecalibration value based on the actual strokesperformed.6. Open the isolating valve.• Press the "Menu/Info" button (confirm the settingand move on to the next menu item), or• press the "Start/Stop" button (confirm the settingand close the second function level).Adjusting the operating counter-pressurewithout gauging the dosed volume duringcalibrationIf you do not gauge the dosed volume, you candetermine the "calibration value" from the followingdosing capacity curves in order to adjust your pumpto the operating counter-pressure.The curves represent 200 strokes:• Dosing medium with a viscosity similar to water• Pumps without Plus 3 system.450VVkal cal [ml]400350300250200150100DDI 20-3DDI 13,8-4DDI 5,5-10DDI 2,5-10DDI 2,2-16DDI 0,4-105001 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16p p [bar] [bar]TM03 6619 4506Fig. 45 Dosing capacity curvesNoteValues are approximate values and donot take into consideration deviationsdue to construction toleranceaccording to VDMA 24284.43