2. Understanding the DMS 2 Keyboard, Menu Systems, and Displays
DMS 2 Operating Manual
Page 39
TEST MODE DISPLAY
•
A-scan—A graphical display of the sound pulses used to
measure thickness.
•
Thickness Reading—The thickness currently being
measured (if the probe-coupled indicator is present) or the
last thickness measured. These numerals will appear
“solid” whenever the probe is coupled and “hollow”, or as a
series of dashes (- - -), when uncoupled. LASTR sets the
appearance when uncoupled. (Refer to Section 4.3.4.)
•
Coupling Indicator—Visible only when the probe is
coupled to the material being tested, and an A-Scan peak
crosses the A-Gate. (Refer to Section 4.1.)
•
Units of Measurement—The instrument’s unit of measure-
ment can be changed. (Refer to Section 3.2.3.)
•
Alarm Indicators—Alarm indicators are only visible when
a specified minimum (<), maximum (>), or percentage
change (%), thickness limit is surpassed. (Refer to
Section 3.3.2 to set the MIN and MAX thicknesses and
adjust the alarm type. Refer to Section 5.4 to set the
percentage-change thickness alarms.)
•
Selected File Location—The location where the next
data point will be sent when the
key is pressed.
This location can be changed in the File Navigation Mode.
File Nav is accessed by pressing
, then using
or
to move within the file’s data points. (Refer to
Section 4.2.2.)
•
Obstruction—The Obstruction notation can be inserted
in any data file location by pressing
. This indicates
a physical location was not accessible. (Refer to
Section 4.2.2.)
•
Battery Life Indicator—Shows the remaining battery life
with the amount of black shading in the icon. (Refer to
Section 3.1.)
•••••
Rectification—Allows advanced users to adjust the way
in which the A-scan is displayed. (Refer to Section 4.4.6.)
