Sterling 882.01749.00 manual DD Pellet Discs, Screw Recovery Time, Calibration weight

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Screw Recovery Time.

The screw recovery time is the estimated screw recovery time, and is used as the initial value for validating the recipe. Actual screw recovery times as measured by the presence of the screw recovery signal, are used to fine-tune the feed rate during operation. The estimated time must be at least ½ of the actual recovery time. If less than ½, the feeder will interpret the recovery signal as a purge cycle.

Calibration weight.

Calibration weight is determined from the following tables, and is dependant on the disc installed in the feeder. This weight is the amount of standard density material dispensed by the feeder during one revolution of the disc. This weight is used as the initial value for recipe validation and feed rate calculation. If samples are not weighed as described in the next section, this value is used during operation. The weight can be entered in ounces or grams. The unit of measure is changed by pressing the units button at the middle right of the screen. Changing the unit of measure will NOT change the value displayed on the screen. The value initially displayed is the weight which would result in a motor speed of 25%. The valid range of values would then be ¼ to 5 times this initial value.

“DD” Pellet Discs

Disc	Calibration Number	No. of Pockets	Disc Thickness

DD 30-030672	1.75	72	3 mm

DD 30-051040	5.00	40
			5mm
DD 30-051725	8.00	25	5mm

DD 30-051818	15.00	18

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Contents Digital Dosing Disc Additive Feeders Write Down Your Serial Numbers Here For Future Reference Shipping Info Unpacking and InspectionTable of Contents Appendix a Basic Parameter Settings Safety How to Use This ManualGeneral Safety Regulations ResponsibilityOperate this equipment within design specifications Functional Description IntroductionA250 Controller Duo Dual Station Digital Dosing FeederQuick Start-Up Guide UnpackingFeeder Configuration Injection Molding Motor and alarm utilty selection Encoder PulsesPage Additive % Injection moldingShot Size Calibration weight Screw Recovery TimeDD Pellet Discs DT Pellet & Regrind Discs DP Powder DiscsDisc Additive Sample weighingRPM Page Recipe Setup for Simple Extrusion Throughput Feeder Configuration Extrusion follower 8400 Bodine Motor and alarm utilty selection Recipe Setup for Simple Extrusion Throughput Speed Weight Calibration Disc Calibration Number ThicknessScreen Screen Screen Installation and Operation Installation882.01749.00 TB #51 TB #54 Initial Operation Recipes Recipe MenuEnter / Edit Recipes Screw Recovery Time Simple Extrusion Recipe Extrusion Follower Recipe Throughput Speed Calibration Screen Screen Status screens PrerequisitesCommon Elements Buttons Disc Motor Indicator Speed Status IndicatorPress Signal Indicator Throughput Screen Totalizer ScreenMotor Speed Screen Screw Recovery Times Screen Injection only Manual Run / Jog ScreenConfiguration Navigation System Setup MenuSystem Setup Navigation Buttons 882.01749.00 882.01749.00 Feeder Type Maximum Motor Speed Encoder PulsesManufacturer Motor Color Black & silver Drive Tuning Speed AlarmDefault Additive Measure Default Shot Size / Throughput Measure Injection Press Additive / Virgin Material Sensor Minimum Press Signal. Extrusion Follower only Press Signal Type. Extrusion Follower onlyMaximum Press Signal. Extrusion Follower only Passwords Screen Digital I/O Monitor Level switches probes Optional FeaturesAnalog / Encoder Monitor Level Sensor Adjustment Screw Communication Protocol Interfaces Optional Additive Hoppers882.01749.00 Virgin Material Supply Hoppers Maintenance Preventative Maintenance IntervalsDD Dosing Module Pellets Removing the Shear Plate DD dosing Module Installing the shearRemoving the shear Removing the DD Disc and Cleaning the Dosing Module Dismantling the Dosing ModuleInstalling the Dosing Module Installing Different Types of Dosing DiscsDT Dosing Module Pellets and Some Regrind Removing/Replacing the Wiper in the DT Dosing Station Removing the DT Disc and cleaning the dosing station DP Powder Dosing Module Removing/Replacing the DT Disc & Cleaning the Dosing Station Removing the DP Disc and Cleaning the Dosing Station Exchangeable Dosing Modules DD DiscsDT Discs DP DiscsSpare Parts DD Dosing Units QTY DescriptionDT Dosing Units QTY DescriptionDP Dosing Units QTY DescriptionDD/DT/DP Additional Spare PartsAppendix a Basic Parameter Settings Recipe FormulasAppendix B Disc Sizing Guides DiscDisc Min/Max Appendix C Drawings Single Station Digital Dosing FeederDuo Digital Dosing Feeder Electrical Schematics of A250 Controller 882.01749.00 Replacement Motor Assembly Part Numbers Appendix D Spare Parts ListDosing Disc/Shear Order Numbers Appendix E Technical Assistance Sterling, Inc882.01749.00