8
8
One key point to keep in mind is that HELP is always just a keystroke away. No
matter the menu item you are on or have question with, just Hi-Light the menu item
then press and hold the select key. A menu item description and use will pop up for
review. It’s almost like having a mini-manual built in.
Figure 4
- Main Menu
Figure 5
- Blank Adjust @ 10
With limited space available, some menu items are abbreviated. None-the-less, abbreviations
and acronyms represent terms familiar to qualified ultrasonic NDT personnel. Curlin AIR is based
upon a microprocessor, combining in high-speed digital electronic technology and new high capability
ultrasonic instrument features. The following is a description of each Menu item(s) and its associated
sub-functions.
5.2 MENUS
Three Menu items are arranged vertically along the left-hand margin of the display as shown in
the following Figure. Whenever a Menu is displayed, an active A-trace is also displayed. The
highlighted menu item can either be selected (to reveal related sub-functions) or changed by
appropriate keying of the arrow keys. In some highlighted Menu items, variables can be changed
without having to select sub-functions.
5.2.1MAIN MENU
The functions grouped in the
MAIN
menu are
used to select Curlin AIR basic setup
parameters. These items are logically among
the first to be addressed during a new setup.
Last setup /factory default values are
automatically displayed. Even though the
defaults permit many kinds of ultrasonic tests
using many kinds of transducers to be
successfully performed, precise flaw detection
tests may require refinements to the default
variables to better match material characteristics.
ENERGY
Energy allows the operator to adjust the energy of the pulse, in number of cycles, delivered to the
transducer. Values available are 1 - 15 cycles.
BLANK
Noise blanking, when selected, will blank any unwanted
noise after the first detected signal. BLANK ADJUST sets
the width of the signal to be
accepted
before blanking the
balance of the waveform.
Example
C
The gage is set to THRU MODE (through transmission)
which is the default mode. In the THRU mode, only the
first received signal is significant. There will be no multiple echos as in pulse echo or pitch
catch. Given this fact much of the trailing information as in Fig 3 is useless and in fact,
maybe a little confusing. Compare Figures 3, 4 & 5. In Fig 3, the BLANKing is turned OFF
and there is a fair amount of “signal” following the first peek envelope. The information past
this point is of little value. In Fig 4, the BLANK mode is turned on to TRACK and BlnkAdj
(BLANK ADJUST) is adjusted to a value of 10. In Fig 5 (next page) the BlnkAdj is set to 4.
Notice the width of the echo envelope and the elimination of any signal past the initial echo
