Olympus 38DL PLUS, User Manual

Page: 132 / 318

DMTA-10004-01EN, Rev. D, November 2016
Chapter 8 120
— When the thickness differential is greater than the % GROWTH value, a high
alarm is indicated.
Table 9 on page 120 shows the result for an example where both % LOSS is set to
20 % and % GROWTH is set to 5 %.
B ‑ SCAN
The B-scan alarm mode is similar to the standard alarm mode except that in the
B-scan alarm mode, lines are shown in the B-scan grid when the reference values
fall within the B-scan thickness range (see Figure 8-5 on page 121). In addition, the
alarms are operational as you review B-scan thicknesses in B-scan freeze review
mode.
Table 9 Alarm calculation example with the % DIFF mode
Previous
values
Actual
thickness
Low alarm High alarm Calculations
7.62 mm
(0.300 in.)
6.07 mm
(0.239 in.)
Yes No
or in inches:
7.62 mm
(0.300 in.)
8.03 mm
(0.316 in.)
No Yes
or in inches:
7.62 mm
(0.300 in.)
7.24 mm
(0.285 in.)
No No
or in inches:
7.62 mm
(0.300 in.)
7.67 mm
(0.302 in.)
No No
or in inches:
7.62 6.07 –
7.62
--------------------------- 100 ×
20%
>
0.300 0.239 –
0.300
--------------------------------- 100 ×
20%
>
8.03 7.62 –
7.62
--------------------------- 100 ×
5%
>
0.316 0.300 –
0.300
--------------------------------- 100
× 5% >
7.62 7.24 –
7.62
--------------------------- 100 ×
20%
<
0.300 0.285 –
0.300
--------------------------------- 100 × 20% <
7.67 7.62 –
7.62
--------------------------- 100
× 5% <
0.302 0.300 –
0.300
--------------------------------- 100 ×
5%
<