User guide

AccuMeter Controller Chapter 13: The Recipe 90
typically used for a color component. It can run between 1-100 lbs/hr. Feeder 2 is a large
auger that is typically used for virgin. It can run between 200-2000 lbs/hr. You can clearly see
that if you entered in a recipe of 50% and 50% that there would not be any speed at which the
two feeders could equal each other to produce a 50/50 blend. The fastest the small auger could
run is 100 lbs/hr. The slowest the large auger could run is 200 lbs/hr. At these limits you could
only achieve a 33%/67% blend. The AccuMeter knows these limitations and prevents you
from entering in a recipe that would make a bad blend. In this scenario you would either have
to decrease the auger/gearbox on the large auger or increase the auger/gearbox on the small
auger. Below is a chart that can be used as a guideline. These values were measured using a
10:1 gear ratio and pellets at 37 lbs per cubic foot.
AUGER SIZING CHART
¼” auger with 3/8” opening .07-2.15 lbs/hr
¼” auger with 9/16” opening .18-4.65 lbs/hr
3/8” auger with 9/16” opening .65-19.4 lbs/hr
3/8” auger with 13/16” opening 1.02-29.6 lbs/hr
½” auger with 13/16” opening 1.54-46.69 lbs/hr
¾” auger with 1-1/4” opening 5.57-160.9 lbs/hr
¾” auger with 1-1/16” opening 5.5-164.5 lbs/hr
1” auger with 1-1/2” opening 12.1-360 lbs/hr
1-5/8” auger with 2-1/8” opening 52-1632 lbs/hr
2” auger with 2-1/2” opening 82-2410 lbs/hr
3” auger with 3-1/2” opening 280-7272 lbs/hr
3-1/2” auger with 4-1/2” opening 519-12,880 lbs/hr
4” auger with 4-1/2” opening 555-14,736 lbs/hr
These values are highly dependent on material, but will get you close to where you want to be.
In the case that you have an auger that is too large or small then you can use these values in
conjunction with the feeder calibration for the material you have to scale these values to match
your actual material. You want to be in the middle of the range and not on either end. Some
recipe ranges and material differences will require you to have multiple auger and/or gearbox
sets.
When you enter a recipe the controller knows the min/max for each auger. From this data and
the recipe it can calculate a min/max for the overall blending range. This is displayed on the
MASS FLOW POP-UP page by touching the icon for the Mass Flow Hopper on the recipe
page. If the CALCULATED BLENDING RANGE shows ****** then it is not possible to run
your recipe with the current feeders and you will not be given an “Accept Recipe” button.