Metalfab Model DB2 Volumetric Screw Feeder - Manual

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Instructions for Operation & Maintenance
Model DB2 Volumetric Screw Feeder
General Description
The DB2 Feeder is a simple, rugged and accurate, volumetric Feeder
used for the dependable metering of dry solids into process. It
consists of a trough with a metering screw and a variable speed drive,
all mounted on a common base plate.
The large diameter inlet allows for the material flow to the “V” shaped
trough. This helps insure constant pick-up of material and filling of the
metering screw. Hence, accuracy is maintained while rates are varied
by screw speed changes. It is recommended that a bin activator
precedes the feeder when handling new free-flowing materials.
Installation
The DB2 Feeder is shipped complete and ready for operation. There is
no need for bolting the unit into place, however, there are four (4)
tabs positioned at each corner of the base plate to allow the unit to be
bolted for reasons of safety or location. The base should be supported
its entire length to a firm structure. Room should be provided at the
discharge end to allow for screw removal.
Electrical Requirements
Standard units are provided with A.C. variable speed drives with
manually operated controls with indicator located directly on the drive.
They are three phase units requiring 203/460 volt, 60 hertz power.
See separate instructions for A.C. drives. Optional drive is a D.C. drive
with S.C.R. controllers capable of converting alternating current to
direct current. These drives are provided for single phase operation.
See separate instructions for D.C. drives.
Caution
1. Do not change speed of an A.C. drive unless the motor is running.