AEC OS Series Gravimetric Batch Blenders - Manual (Page 70)

Page 69 of 118
5-8-19-1 Weigh Every Batch
This mode of operation weighs every component of every batch
that is metered by the OS/OA blending system.
5-8-19-2 Every Second Batch
In the every second batch mode, the OS/OA blending system will
weigh each component of the batch during one cycle and then run
all components simultaneously the next cycle on a time basis that
was learned during the weigh cycle. After an initial learn cycle, the
blender will weigh every other batch and then run volumetrically
timed metering every other batch. This allows for greater
throughput of the blender.
Running in every other batch mode normally does not affect the
accuracy of the blender to any great degree on consistent bulk
density materials.
5-8-19-3 Every Third Batch
In the every third batch mode, the OS/OA blending system will
weigh each component of the very first batch. The second and
third batches will be metered using time. The augers are timed
while weighing the first batch. The second and third batch will use
the time measured on the first batch. This sequence will continue
as long as the blender is running in this mode.
This allows for greater throughput of the blender, as the blender is
running all the metering devices simultaneously. Accuracy in this
mode is not as good as weighing every batch, but will be
satisfactory in most applications.
5-8-19-4 Every Fourth Batch
In the every fourth batch mode, the OS/OA blending system will
weigh each component of the very first batch. The second, third
and fourth batches will be metered using time. The augers are
timed while weighing the first batch. The second, third and fourth
batch will use the time measured on the first batch. This
sequence will continue as long as the blender is running in this
mode.
This allows for greater throughput of the blender, as the blender is
running all the metering devices simultaneously. Accuracy is not
as good as weighing every batch but will be satisfactory in most
applications.