TM 5-6675-323-14
( 4 ) C a l c u l a t e l i n e a r s c a l e c o n s t a n t , CL , u s i n g t h e f o l l o w i n g e q u a t i o n :
= SC / RL
CL
= Linear scale constant
CL
= Scale of drawing or map
Sc
= Alinement constant (found on Calibration Records Sheet provided with
RL
equipment)
CL , i n t o
(5) Enter three most significant
digits
of
linear
scale
constant,
auto-scaler using scaler dials.
(a) Set first most significant digit on left hand dial.
(b) Set second most significant digit on middle dial.
(c) Set third most significant digit on right hand dial.
I f CL i s 1 0 . 5 7 1 , l e f t h a n d d i a l s h o u l d r e a d 1 , m i d d l e d i a l s h o u l d r e a d 0 ,
Example:
and right hand dial should read 5.
(6) Set decimal selector
according
to
value
of
first
significant
digit
of
l i n e a r s c a l e c o n s t a n t CL .
NOTE
Decimal selector switch sets decimal place for auto-scaler LED display.
If constant is one or greater, set decimal selector to 0.
If constant is less than one, set decimal selector according to place of
first significant digit.
(7) Place linear measuring probe on line to be measured so that pricking pin
is at starting point.
(8) Press CLEAR button to clear auto-scaler.
(9) Make measurement by tracing length of line with linear measuring probe.
(10) Press foot switch to activate ACCU and freeze count.
(11) Multiply number shown in auto-scaler LED display to obtain length of line
in feet.
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