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 Vintage Bachmann Railroad Auto Truck Sets N Scale NEW  US $9.95
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 WOODLAND SCENICS N SCALE AUTO SCENE CARBURETOR CHAOS US $14.59
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 MTL N SCALE 89 BI LEVEL OPEN AUTO RACK PC 112520 US $20.95
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 HO Scale RR Train Trailer Train Auto Loader Car US $6.99
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 Z Scale 2000 Yellow Checker Cab Taxi Auto US $8.99
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 MTL N SCALE 89 OPEN AUTO RACK PC TTBX 962577 112520 US $8.95
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 N Scale 1962 Blue VW Micro Bus Car Auto US $7.99
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 N Scale Detailed Stack of Junked Autos US $10.99
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 N Scale Detailed Stack of Junked Autos 2 US $10.99
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 HO SCALE TRAINS MODEL RAILROAD LAYOUT CAR AUTO CARRIER US $1.04
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 HO Scale SERVICE STATION AUTO MECHANICS FIGURES US $14.95
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 Atlas 40910 Articulated Auto Carrier NS 110214 N Scale US $34.95
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 HO SCALE AUTO 1953 STUDEBAKER PRESIDENT COUPE US $5.99
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 WOODLAND SCENICS N SCALE AUTO SCENE COPN A KISS US $12.89
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 AN N SCALE AUTO AND SOME PEOPLE US $.99
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 HO SCALE MODEL RAILROAD 85 AUTO CAR FERRY US $15.00
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 1970 PLYMOUTH CUDA N SCALE truck auto vehicle car US $5.99
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 1964 DODGE POLARA N SCALE vehicle car auto truck van US $5.99
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 TYCO HO SCALE Autoloader With 6 Autos 349450 US $.99
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 HO SCALE Tri Level Auto Carrier Norfolk Western US $18.00
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 HO SCALE Tri Level Enclosed Auto Carrier CNW US $18.00
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 HO SCALE 60 Single Door Auto Parts Box Car CSX US $9.99
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES BNSF 10645 US $10.50
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES BNSF 10640 US $20.01
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES CRLE 10625 US $13.49
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES CRLE 10624 US $14.49
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES BNSF 10639 US $19.01
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES CP SOO 10622 US $15.49
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 N Scale Penn Central PC 89 Open Auto Rack MTL NEW US $24.95
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES BNSF 10643 US $12.50
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES KCS 10626 US $21.51
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 N Scale Southern Railroad 89 Open Auto Rack MTL NEW US $25.95
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 N Scale Chessie System CO 89 Closed Auto Rack MTL NEW US $27.95
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES BNSF 10644 US $12.50
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES BNSF 10642 US $15.49
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 N SCALE ATHEARN AUTO MAX CAR ACCUMATES KCS 10628 US $17.51
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 HO SCALE 60 Single Door Auto Parts Box Car BNSF US $9.99
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 HO Scale 60 Pullman Standard 4 Door Auto Parts Box Car US $14.00
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 HO SCALE AUTO 1947 CHEVY FLEETLINE US $5.99
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 HO SCALE AUTO 1935 PLYMOUTH 2 DOOR US $5.99
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Scale Auto
What does Digital Auto Calibration mean (for a scale)?
Auto Scaling would be a function that allows a user to calibrate the scale without the need of tools or mechanical adjustment. The only requirement would be to have a weight of known value (standard) that is within the operating range of the scale.
The firmware in the microcontroller would receive user input as to when an empty scale would be zeroed and when the weight of know value is placed on the scale(span). Using the zero and span points and known weight the micro controller will compute adjustment factors which when applied to the raw weight sensor input allow the micro controller to report weight in a standard form like pounds or kilograms.
EDIT:
This should not be confused with auto zero.
Auto Zero of a scale can be done at either power up or with a button. The purpose here is to allow the user to automatically subtract the weight of a container placed on the scale so as to allow easy measurement of just the contents.
An empty container is placed on the scale and its weight is reported. The Zero is pressed and the container weight will be subtracted from all subsequent readings until a new zero is established.
This doesn't effect the calibration of the scales span. So if you add a pound to the container it will read a pound. So long as the container used to zero the scale is on the scale with the item.
