Olympus 38DL PLUS User Manual

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%<

Olympus 38DL PLUS Specifications

General

Operating Temperature	-10 °C to 50 °C (14 °F to 122 °F)
Data Logger	Yes
Interface	USB, RS-232
Thickness Range	0.08 mm to 635 mm (0.003 in. to 25 in.) depending on material and transducer
Display	Backlit LCD
Battery Type	Three alkaline or NiMH AA cells
Pulser	Adjustable square wave pulser
Receiver Bandwidth	0.5 MHz to 20 MHz
Languages	English, French, German, Spanish, Italian, Russian, Japanese, Chinese
Resolution	0.001 mm or 0.0001 in.
Transducer Frequency	2 MHz to 30 MHz
Material	Plastic housing