Cameron Opti-Rip 415A-M1, Manual

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54
OPERATION
OPERA
TION
#415-R1
8-15-18 - JR
Algebraic Expressions of Opti-Rip Calculations
Variable Definitions :
(RW) = An individual rip width within a saw stack in inches
(V) = Rip width value in $/MBF
1 = First board of a series or the first rip width of a saw stack used as part of
the rip solution of a board
N = Final rip width of a saw stack used as part of the rip solution
of a board (max. possible is 11 limited by the 12 saws)
Z = Total number of boards processed
(BW) = Measured board width
1. Product Value
The product value of an individual board is expressed:
PV = [(RW
1
)(V
1
) + (RW
2
)(V
2
) + ... (RW
N
) (V
N
)] / (RW
1
) + (RW
2
) +..RW
N
]
The average 'PRODUCT VALUE' (PVA) which is printed on the report is the running
average of all the processed boards. It is calculated:
PVA = [ PV
1
+ PV
2
+....PV
Z
] / Z
2. Value/M
Value/M displayed on the screen is the value of the board currently being processed.
This single board value (BV) is calculated:
BV = [ (RW
1
)(V
1
) + (RW
2
)(V
2
) +.... (RW
N
)(V
N
) ] / BW
3. Average Lumber Value
The average lumber value (LVA) is displayed as 'AVER. VALUE' on the operation
screen and printed as 'LUMBER VALUE'
on the report It is the running average of all board values for those boards processed and
is calculated :
LVA = [ (BV
1
)+(BV
2
) +.... BV
Z
] / Z
4. Product Cost
Product cost (PC) is the actual net cost of the lumber after adjusting it for its yield to
produce the ripped stock.
PC = Lumber Cost in($/MBF) / the average yield of all lumber processed.