Atec Omniscan-MX User Manual
MULTITECHNOLOGY FLAW DETECTOR: UT, PA, EC, ECA
OmniScan® MX
• Portability
• Modularity
• Color Imaging
• Data Storage
920-117H-EN
OmniScan® MX
With thousands of units being used
throughout the world, the OmniScan MX is
Olympus NDT’s most successful portable
and modular phased array and eddy current
array test instrument. The OmniScan family
includes the innovative phased array and
eddy current array test modules, as well as
the conventional eddy current and ultrasound modules, all designed to meet the
most demanding NDT requirements. The
OmniScan MX offers a high acquisition
rate and powerful software features—in a
portable, modular instrument—to efficiently
perform manual and automated inspections.
Rugged, Portable, and
Battery Operated
The OmniScan is built to work in the harshest field conditions. A solid polycarbonatebased casing and rubber bumpers make it a
rugged instrument capable of withstanding
drops and shocks.
The OmniScan is so compact and lightweight (only 4.6 kg, 10.1lb) that it can
be carried easily and handled anywhere,
inside or outside. The OmniScan will run
for 6 hours with its two Li-ion batteries.
Up/Down keys
Menu keys
Scanner interface
Microphone
Help key Parameter keys
Alarm indicator LEDs
SVGA output
Alarm and I/O
Control area
Function keys
On/off switch
Tilt stand
Protective bumpers
User Interface
The highly legible 8.4-inch real-time
display (60-Hz A-scan refresh rate) with an
SVGA resolution of 800 x 600 allows you
to clearly see defects and details under any
light conditions. A scroll knob and function
keys make it easy to browse through and
select functions. A mouse and keyboard
can also be connected for users looking for
a more PC-like interface.
Modular Instrument
The instrument allows you to switch between its different test modules on location.
When a new module is connected, the
instrument detects the module and its supported technology so that the configuration
and test environment are set automatically.
OmniScan Connector
The OmniScan connector has a probe ID
feature that enables physical detection and
recognition of the probe connected to the
instrument.
• Sets the probe to an appropriate
frequency to prevent probe damage.
• Sets C-scan resolution for ECA probes.
• Loads the correct probe parameters.
Eddy current
array module
8-channel
UT module
16:16M
phased array
module
16:128
phased array
module
USB connectors
• Keyboard
• Mouse
• Printer
Ethernet
and serial ports
32:128
phased array
module
Adapters able to connect to probes from other
manufacturers are available.
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Setup and Reporting
• Setup storage is compatible with Microsoft Windows
(exportable using a CompactFlash card).
• Complete report setups, including reading configurations, that
can be customized using HTML page layouts.
• Easy report generation, from acquired data to complete report
in seconds
• On-screen interactive help that can be customized for
procedure-oriented setups using HTML script templates
• Setup preview
• Predefined setups
Connectivity, Data Storage, and Imaging
The OmniScan® offers alarm outputs and standard PC ports: USB,
SVGA out, and Ethernet. It offers internal data storage capability
and extended storage via a CF (CompactFlash) card slot as well as
any USB or network storage.
Typical Applications
Girth Weld Inspection
Olympus NDT developed a circumferential weld inspection system for the oil and gas
industry based on the OmniScan PA. This phased array system is qualified to inspect tubes
with diameters ranging from 48 mm to 1524 mm and thicknesses from 5 mm to 25 mm in
compliance with the ASME Boiler and Pressure Vessel Code, Section V. The semiautomated
system offers better inspection speed and detection, and makes interpretation of the indications significantly easier.
Pressure Vessel Weld Inspection
The combination of time-of-flight diffraction (TOFD) and pulse-echo techniques means
that a complete inspection can be performed in a single scan, significantly reducing the
inspection time when compared to conventional raster scanning or radiography. Inspection results are instantly available, allowing you to find problems with the welding equipment and fix it right away. Based on our vast experience in the nuclear and petrochemical
industries, this system includes all the functions that are needed for code-compliant weld
inspections.
Scribe Marks Inspection with No Paint Removal
The Flight Standards Information Bulletin for Airworthiness (FSAW 03-10B), issued in No-
vember 2003, reports damage along fuselage skin lap joints, butt joints, and other areas of
several aircraft caused by the use of sharp tools used during paint and sealant removal.
The OmniScan allows scribe marks inspections to be performed without paint removal,
which is a huge time-saver. The inspections are performed in a single pass using 60º to 85º
SW sectorial scans. The OmniScan PA is now referenced in the Boeing NTM manuals, 737
NDT Manual, Part 4, 53-30-06, July 2005.
Aircraft Fuselage Inspection
The OmniScan ECA (eddy current array) provides the ability to detect hidden corrosion
and cracks in multilayer structures. Currently, material loss of 10% of the lap-splice thickness can be detected in aluminum at a depth of 5 mm. Surface and subsurface cracks can
be detected in the skin, at the fastener, or at the lap-joint edges.
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Ultrasound Inspection
Transmitter Receiver
Lower tip
Upper tip
Backwall (+) Lower tip (+) Upper tip (+) Lateral waves (+)
Lateral waves
Backwall reflection
Time-of-Flight Diffraction Testing
Time-of-flight diffraction (TOFD) is a
technique that uses two probes in pitchcatch mode. TOFD detects and records
signals diffracted from defect tips allowing
both detection and sizing. The TOFD data
is displayed in a grayscale B-scan view.
TOFD offers wide coverage and amplitudeindependent sizing complying with the
ASME-2235 code.
• One-line scan for full-volume inspection
• Setup independent of weld configuration
• Very sensitive to all kinds of defects and
unaffected by defect orientation
TOFD and Pulse-Echo Testing
While TOFD is a very powerful and efficient technique, its coverage is limited as
a result of two inspection dead zones: one
dead zone is near the surface, the other is
at the backwall.
The OmniScan® UT allows inspections that
simultaneously combine TOFD with conventional pulse echo. Pulse echo complements TOFD, covering the dead zones.
• TOFD inspection
• 45º pulse echo for weld cap inspection
on either side of the weld
• 60º pulse echo for weld root inspection
on either side of the weld
0-Degree Testing
(Corrosion and Composite)
0-degree testing measures the time-of-flight
and amplitude of ultrasonic echoes reflecting from the part into gates in order to
detect and measure defects.
• C-scan imaging
• Full A-scan recording with C-scan
postprocessing
Ultrasound Transducers
Olympus NDT offers a selection of thousands of transducers in standard frequencies, element diameters, and connector
styles.
• Contact and immersion transducers
• Dual transducers
• Angle-beam transducers and wedges
• Replaceable delay line transducers
• Protected face transducers
• Normal incidence shear-wave
transducers
Transmitter Receiver
Lateral waves
Upper tip
The TOFD hand scanner is a small, lightweight, efficient, low-cost, and versatile
weld inspection solution.
It can accommodate a full range of probes
and wedges, including the CentraScan™
composite product line.
Weld inspection using TOFD. Weld inspection using combined TOFD and pulse echo
HSMT-Flex scanner used for TOFD applications (PV-100).
General view of TOFD setup for linear weld inspection showing
lateral wave, backwall echo, and diffracted signals on the A-scan.
TOFD
60º SW
45º SW
Transmit
PE
PE
(PV-100).
Weld inspection with TOFD.
Lower tip
Backwall reflection
TOFD
Receive
60º SW
45º SW
PE
PE
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Ultrasound Software
Full-Featured C-Scan
• Monitors amplitude, peak position, crossing level position,
and thickness on each gate.
• Automatic gate synchronizes from previous gate for higher
dynamic range of thickness.
• A-scan data storage and C-scan postprocessing capabilities
Step-by-Step Calibration Wizards
All calibration procedures are guided using step-by-step wizards.
Multiple A-scan display.
Indoor/outdoor color schemes for
improved readability in all conditions.
• Sound velocity calibration
• Wedge delay calibration
• TOFD calibration
• TCG calibration
• Encoder calibration
TOFD Option
• Optional IF gate for surface-following synchronization or
measurement gate, or TCG/DAC curves
• Positive or negative gate on RF signal (independent for each
gate)
• Eight completely configurable alarms on single-gate events
or multiple-gate events, filter for n occurrences from one or
multiple channels
• Customizable color palette for amplitude and thickness
C-scans
• Adjustable 256-level color palette
• 2-axis mechanical encoding with data-acquisition
synchronization on mechanical movement
• Optional data library to access A-scans and/or C-scans on PCs
for custom processing
Full-Featured B-Scan
• Easy-to-interpret cross-sectional view of inspected part
• Excellent display of corrosion mapping for boilers, pipes, and
storage tanks
• Visual identification of acquired thickness values
• Encoded TOFD capability for amplitude-independant defect
sizing
Full-Featured A-Scan
• Color-selectable A-scan display
• Reject mode
• Hollow mode
• Peak-hold mode (always keeps the signal that shows the
maximum amplitude in gate A)
• Gate threshold-level crossing (changes the color of the curve
that is over the gate level)
• 60 Hz A-scan refresh rate with overlays of envelope and peak
inside the gate
• B-scan encoded data imaging and storage
• Grayscale color palette, adjustable for brightness and contrast
• 100 MHz A-scan digitizing
• TOFD calibration wizard, online and offline
• Hyperbolic cursor and reading for TOFD sizing
• Lateral wave resynchronization
Live switching between conventional
UT and phased array UT
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