Sedecal SHF-310 - AEC Optical Density Scale

HF Series Generators
Calibration
CA-1036R2
44
2.6.6 AEC OPTICAL DENSITY SCALE
AEC is calibrated with “Density 0” selected (Normal Optical Density). The
Optical Density can be increased or decreased in several steps.
The variation percentage of the density scale is factory set at 25%. This
variation can be set according to the customer preferences by changing the
value stored in E12 Memory Location. This value applies to both tubes.
Depending on the Console model, the range of the scale is “from --2 to +2” or
“from --4 to +4” (optional ).
The following tables show some examples for the variation percentage of the
density scale with reference to the value stored in E12 Memory Location.
E
1
2
V
A
L
U
E
DENSITY SCALE FROM --2 TO +2 . VARIATION OVER NORMAL OPTICAL DENSITY (N)
E12
V
A
LUE
-- 2 -- 1 0 +1 +2
5 N x 0.90 N x 0.95 N N x 1.05 N x 1.10
10 N x 0.80 N x 0.90 N N x 1.10 N x 1.20
25 N x 0.50 N x 0.75 N N x 1.25 N x 1.50
NOTE: If the value stored in E12 Memory Location is 0, 25 or 255, the variation percentage is 25%.
E12
DENSITY SCALE FROM --4 TO +4 (OPTIONAL) . VARIATION OVER NORMAL OPTICAL DENSITY (N)
E
1
2
VALUE
-- 4 -- 3 -- 2 -- 1 0 +1 +2 +3 +4
5 N x 0.82 N x 0.86 N x 0.91 N x 0.95 N N x 1.05 N x 1.10 N x 1.16 N x 1.22
10 N x 0.68 N x 0.75 N x 0.83 N x 0.91 N N x 1.10 N x 1.21 N x 1.33 N x 1.46
25 N x 0.41 N x 0.51 N x 0.64 N x 0.80 N N x 1.25 N x 1.56 N x 1.95 N x 2.44
NOTE: With scale from “--4 to +4” the useful range for the value s tored in E12 Memory Location is from 1 to 25 .
Record the value for E12 Memory Location in the Data Book.