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2.0 PRINCIPLES OF OPERATION
2.1
Model 100-V1, V2 or V3-04
Material in the hopper flows by gravity into a rotating horizontal feed helix,
which is direct driven by a fixed speed motor and gear reducer. As the feed
helix rotates, it moves the material along the base of the hopper and out
through the discharge spout.
A built-in rate setter controls the feedrate which is manually selected by
turning the rate setting knob graduated from 3-100%.
The rate setter stops and starts the feeder motor in a repeating cycle so that
the operating time of the feeder is in direct proportion to the rate setting.
For example, if the rate is set at 50%, with a one (1) minute repeating cycle,
the feeder runs for thirty (30) seconds every minute.
2.2
Model 100-V1, V2 or V3-06
Material in the hopper flows by gravity into a rotating horizontal feed helix,
which is direct driven by a variable speed motor and gear reducer. As the
feed helix rotates, it moves the material along the base of the hopper and out
through the discharge spout.
A variable speed drive consisting of a motor and DC motor controller
determine the feed rate. Standard range with an SCR DC motor drive is 20
to 1. With a Merrick XTRA
®
DC drive, the range expands to 60 to 1. The
controller converts alternating current to direct current to drive the DC
motor. The DC drive as a standard is mounted as an integral part of the
feeder and consists of a 0-100% speed adjusting potentiometer with an
ON-OFF switch. If a signal conditioner is included (4-20 mA), a
REMOTE-LOCAL switch is also included. If a vibrator is required for
material conditioning, a vibrator timer with ON-OFF switch is included. A
standard unit operates on 115V 50/60Hz AC current.
Summary of Contents for 100 VOLUMERIK Series
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