TM5-6675-326-14
6-6.2.17 Measuring Areas With Planimeter - Continued
( 1 3 ) S e t c a l c u l a t o r
( 1 4 ) S e t c a l c u l a t or
( 1 5 ) S e t c a l c u l a t o r
OFF/ON switch to ON.
MAN/TRACE/NORM switch to NORM.
PRGM/RUN switch to RUN.
( 1 6 ) P r e s s f o l l o w i n g k e y s:
CAUTION
Hold magnetic cards by edge.
Be sure hands
a r e c l e a n . G r e a s e, o i l , o r o t h e r m a t e r i a ls
can damage magnetic cards.
c. Load preprogrammed magnetic card (para 6-6.2.10), Program I,
i n t o c a l c u l a t o r .
d.
Tape map or drawing to be measured to table.
e.
Select correct tracer arm length.
NOTE
Tracer arm should be shortest one possible
that will allow entire shape to be measured
without moving planimeter.
f .
Aline planimeter with tracer arm length selected (para
6 - 6 . 2 . 1 4 ).
R e c o r d RT v a l u e .
NOTE
Factory determined RT value is provided on
Calibration Records Sheet provided with equip -
ment.
Alinement is performed as a check.
g.
Place planimeter near shape to be measured so that length of
tracer arm lies along imaginary line through center of
shape.
Set wheels so that their axles form 90° angle with
tracer arm.
h .
Make practice trace to be sure tracer arm will cover area in
one operation.
i .
Select starting point for measurement on shape where
Imaginary line crosses boundary of shape. Mark point.
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