Sterling Plumbing 882 00276.00 Changing the Dosing Disc in the DT Digital Dosing Station

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5.4 Changing the Dosing Disc in the “DT” Digital Dosing Station

Removing the Dosing Disc

1.Empty the dosing station.

2.Switch the control unit off by means of the on/off switch.

3.Dismantle the dosing unit and remove the shear plate.

4.Loosen the two hexagon socket screws (M6 x 30) on the top side of the dosing disc.

5.Loosen the center hexagon socket screw (M6 x 12) and replace by a M6 x 60 screw.

6.Lift the dosing disc from the dosing unit housing by this screw.

Installing the Dosing Disc

1.Change and place the dosing disc in the dosing unit housing.

2.Remove the screw (M6 x 60).

3.Screw the dosing disc in place by means of 2 hexagon socket screws (M6 x 30).

4.Mount the center hexagon socket screw (M6 x 12).

5.Install the shear plate and then the dosing unit.

6.Turn the dosing disc to check for smooth movement.

7.Position the dosing hopper on the dosing unit.

8.Tighten the profile clamp.

See Appendix D: Spare Parts List on page 61 for disc part numbers.

Digital Dosing Units

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Contents SDD Series Digital Dosing Additive Feeders Table of Contents Introduction Digital Dosing Units Keypad and LED Display ControllerKeys and Symbols Symbols Unpacking Quick Start-upMounting DD Discs Calibration Number Recipe Setup for Injection MoldingDT Discs Calibration Number DP DiscsCalibration Recipe Setup for ExtrusionDigital Dosing Units Input Number Manufacturer Motor ColorDigital Dosing Units Digital Dosing Units Digital Dosing Units RPM Digital Dosing Units Digital Dosing Units Digital Dosing Units Initial Installation Initial Installation and OperationElectrical Diagram Electrical diagram of connectionsDiagram of analog inputs Extruder Follower Interface Signal ConverterSignal Converter with AC Power Supply VDC Mini Power Supply Signal Converter with DC Power SupplyInitial Operation Recipe Input Injection Molding Injection MoldingStep Step Step Operation Injection Molding Recipe Input Extrusion Constant Extrusion Constant StandardExtrusion Constant, parameter 3 is skipped Step Step Operation Extrusion Constant Recipe Input Extrusion Proportional Extrusion Proportional Extruder Follower OptionStep Step Operation Extrusion Proportional Extruder Follower Option Calibration Determining the Calibration WeightRepeat steps 3 and 4 four 4 more times Digital Dosing Units Recipe Storage and Recall Advanced Operations/ Control FunctionsRecipe Storage Recipe Recall Clearing the Totalizer Acknowledging AlarmsLevel switches probes AlarmsCommunication Protocol Interfaces Maintenance Intervals MaintenanceRemoving the Shear plate DD feeder only Removing the shear plateInstalling the shear plate Cleaning the DD Digital Dosing StationDismantling the Dosing Station Installing the Dosing Station Changing the Dosing Disc in the DT Digital Dosing Station Installing the Dosing DiscRemoving the Dosing Disc Removing / Replacing the Wiper in the DT Dosing Station Installing Different Types of Dosing DiscsDD Discs Cleaning the DT Dosing Station DP Discs Calibration Exchangeable StationsDisc See Appendix D for fuse part numbers Replacing FusesGeneral Troubleshooting Unit Will Not Operate Appendix a TroubleshootingMalfunctions Error Codes Error Codes Recipe Formulas Determining the Software Setup FactorInjection Molding Recipe Limitations for Injection MoldingRecipe Limitations Extrusion ExtrusionExtrusion Mode Appendix B Basic Parameter SettingsMax. input frequency = Hz Example Probe Example Digital Dosing Units Disc Dosing Factor Disc Guide 20 kg/h DT30 204010F Default Calibration # 150 grams/rev One 1 for Granule Disc Dosing Factor TableProcessing Option Hopper Level Probe VirginStarter Calibration Parameters Set-up of Factory Set Operating Parameters Ext = Span factor sf calculated using sf=1000/rpm@10vdc Page Station 1 Digital Dosing Unit Side View TOP View Station 2 Digital Dosing UnitGeneral Wiring Diagram for Bauer Motor Page C150 Controller Injection Replacement Motor Order Numbers Appendix D Spare Parts ListDosing Disc/Shear Order Numbers Control System Order Numbers Page Technical Assistance Service DepartmentParts Department Sales Department