Sterlco SGBD Series Batch Gravimetric Blenders - Manual (Page 57)

BLN1-600 Chapter 4: Operation 57 of 110
Every Batch:
This mode of operation weighs every component of every batch that is metered by the
Slide Gate/Auger blending system.
Every Second Batch:
In the every second batch mode, the Slide Gate/Auger 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.
Every Third Batch:
In the every third batch mode, the Slide Gate/Auger blending system will weigh each
component of the very first batch. The second and third batches will be metered using
time. The augers/gates 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.
Every Fourth Batch:
In the every fourth batch mode, the Slide Gate/Auger blending system will weigh each
component of the very first batch. The second, third and fourth batches will be metered
using time. The augers / gates 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.
• This feature sacrifices blender weighing accuracy for blender maximum rate
and is only recommended under special circumstances.
• ***Other questions regarding controller features are answered in the
Service Supervisor Section at the back of this manual.***