DMTA-10004-01EN, Rev. D, November 2016
Chapter 9
128
3.
In
MEASUREMENT MODE
, select what the instrument measures and displays
among the following options:
—
THICKNESS
: the thickness of the inspected part
—
VELOCIMETER:
the sound velocity in the material of the inspected part
—
TIME OF FLIGHT
: the round trip time-of-flight (TOF) of the sound in the
inspected part
4.
In
UNIT TYPE
, select between the
INCH
(English) or
MILLIMETER
(metric)
units.
Time-of-flight measurements are always expressed in microseconds.
5.
In
RESOLUTION
, select between
STANDARD
,
LOW
, or
HIGH
the Thickness Resolution” on page 61 for details).
6.
In
MIN/MAX
, select to activate either the
MIN
(minimum),
MAX
(maximum), or
BOTH
modes (see “Using the Minimum, Maximum, or Min/Max Thickness
Mode” on page 115 for details).
7.
In
HOLD BLANK
, configure the instrument to either continue to show (
HOLD)
or not hold (
BLANK
) the last measured thickness and waveform while a loss-of-
signal (LOS) occurs.
The
MIN/MAX
and
HOLD BLANK
functions are mutually exclusive. You must set
MIN/MAX
to
OFF
to be able to change the
HOLD BLANK
function. Similarly, you
must set
HOLD BLANK
to
BLANK
to be able to change the
MIN/MAX
function.
8.
In
MEASURE RATE
, adjust the measurement update rate (see “Adjusting the
Measurement Update Rate” on page 60 for details).
9.
Set
ID OVERWRITE PROT
to
ON
if you want to see a confirmation message in
the help bar when attempting to save a measurement reading in an ID that
already contains a value (see “Setting the ID Overwrite Protection” on page 196
for details).
10. For single element transducers only, set
QUICK SETUP RECALL
to
ON
to
activate the quick recall of the first four custom setups using the combination of
[2nd F]
and the arrow keys (see “Quickly Recalling a Custom Setup for Single
Element Transducers” on page 240 for details).
11. For single element transducers only, set
AGC
to
ON
to set the automatic gain
control (AGC) function to automatically bring all measured back-wall echoes to
the same amplitude.
NOTE
Summary of Contents for 38DL PLUS
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Page 28: ...DMTA 10004 01EN Rev D November 2016 Important Information Please Read Before Use 16 ...
Page 30: ...DMTA 10004 01EN Rev D November 2016 Introduction 18 ...
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Page 306: ...DMTA 10004 01EN Rev D November 2016 List of Figures 294 ...
