I N S T R U M E N T F U N C T I O N S
5-31
Trap Function (518, 528, 530 only)
The Trap function determines how well one ink prints
over another ink (overprinting). You should select the
Trap Display Mode and set the Options before measuring.
Trap Measurement Mode
Your instrument can evaluate trap data two different
ways: as straight measurement data, or as difference
(minus reference) measurement data. Pressing the Enter
key
#
with the Trap mode highlighted alternates between
Trap and Trap Minus Reference.
Setting Options
Pressing the Enter key
#
with the
Options
menu
highlighted opens the Trap Formula Editor. The formula
used to calculate trap is selected from this editor.
Formula
Trap is calculated using one of three formulas:
Preucil (GATF) Trap formula
(factory default)
T
D
D
D
P
OP
=
−
×
1
2
100
Newsprint Trap formula
T =
log 1+
D
D
D
D
log 1+
D
D
D
100
N
OP
1
M
OP
2
M
2
−
−
⎛
⎝
⎜
⎞
⎠
⎟
−
⎛
⎝
⎜
⎞
⎠
⎟
×
T R A P
-
R E F
O p t i o n s
>
P a p e
O v e r P
I n k 2
I n k 1
^
V 0.13
C 0.12
M 0.13
Y 0.22
<
S e l e c t M o d e
>
T
TRAP
Содержание 500 Series
Страница 1: ...500 Series S P E C T R O D E N S I T O M E T E R Operator s Manual ...
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Страница 54: ...C H A P T E R F O U R 4 24 ...
Страница 112: ...C H A P T E R F I V E 5 58 ...
Страница 120: ...C H A P T E R S I X 6 8 ...
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