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Volumetric Measured by Motor Tach
Recycle Weighed by Recycle Scale Conveyor - TM-5-3895-374-10_217

TM-5-3895-374-10 Paving Machine Bituminous Material: Crawler Mounted Diesel Engine Driven Manual
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TM 5-3895-374-10 ......................................................................................................................................................FEEDER information display Weighed by Feed Bin Collector Belt Scale_________________________ Some  systems  incorporate  a  number  of  belt  conveyor  scales  in  the  collector  belt  under  the  feed  bins.    A  single  speed pickup  off  the  collector  belt  tailshaft  is  used  to  measure  belt  speed.    The  output  of  the  feeder  furthest  from  the  drum  is measured by the furthest weighbridge.  The second furthest weighbridge measures the actual material output of both the first and second bins and so forth.  The computer calculates the measured output of each bin from the measured value of its  weighbridge  minus  the  measured  value  of  the  previous  weighbridge.    This  scheme  usually  has  some  other  simpler approach as a backup option. Recycle Weighed by Recycle Scale Conveyor______________________ Some  systems,  using  a  single  recycle  bin,  interlock  the  bin  and  its  scale  conveyor  so  that  the  desired  bin  output  is periodically compared to the actual measured scale value and appropriately corrected.  Most usually the feeder information display  will  be  the  Desired  Rate,  shown  in  parenthesis,  and  the  recycle  scale  information  display  will,  of  course,  be  the actual   measured   rate.   Other   measuring   techniques   may   be   employed   for   specialty   feeders   proportioning   antistrip, rejuvenator, water, line or some other additive.  Special options are covered in the appendix to this manual. page F - 14 SYSTEMS Equipment Corp 8/31/89 Page (8)







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