Download - EPOCH XT B-Scan Option Presentation
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EPOCH XT B-Scan Software Option Available on EPOCH XT instruments beginning in April 2008.
Instrument software revision 1.1.1.1 or later
EPOCH XT must be equipped with the Hardware I/O Port (optional)in order to allow encoded scans.
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EPOCH XT B-Scan Key Features Scan Rate has been increased to up to 1000 measurements / second.
With Floating Gate active the maximum scan rate is 500 meas. / sec. With A-Scan Storage active the maximum scan rate is 60 meas. / sec.
The limit on the EPOCH 4 B-Scan is 180 meas. / sec.
Three B-Scan Modes: Bi-Directional encoded, Uni-Directional encoded,and Manual non-encoded.
Display Modes B-Scan only (split or full screen) A-Scan only (split or full screen) B-Scan and A-Scan simultaneously
Store up to 150,000 points per B-scan and up to 100 scans at maximumsize.
Store A-Scans during B-Scan collection based on: Alarm
Minimum Depth
Store All
Limits scan rate to 60 measurements / second
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EPOCH XT B-Scan Key Features B-Scan is compatible with Echo-to-Echo for coated surfaces or
when there is a varying water path.
Gate 1 width must be set wide enough to completely cover Gate 2 to avoid lossof signal.
Full compatibility with GageView Pro 3.5
See the GageView Pro 3.5 presentation for the EPOCH XT. This is located in
the HELP menu in GageView Pro.
New color palettes for B-Scan
Scan can change from Green to Red on alarm
Grayscale gradient and Color gradient available
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EPOCH XT B-Scan InstrumentConfiguration and Parts
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Hardware I/O Explanation EPOCH XTs must be equipped with the Hardware I/O Port to accept
the encoder cable used for B-Scans.
If you are not sure if your EPOCH XT has this port, look at the topof the instrument and compare to the pictures below.
Installation of this port requires that the EPOCH XT be returned toan Olympus NDT Service Center.
OK NOT OK
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Parts Required for B-Scan EPOCH XT with Hardware I/O Port
EPOCH XT B-Scan Software Option PN: EPXT-BSCAN
EPOCH XT Encoder Cable PN: EPXT-ENC-CBL-XX Choose length (10, 25, 50, or 100 feet).
Encoder Car PN: EP4/ENC
Transducer Typically a D790-SM
Transducer Cable BNC: BCMD-316-XXB (Choose length to match encoder cable)
LEMO: L1CMD-316-XXB (Choose length to match encoder cable)
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B-Scan Kits B-Scan Kits Most customers choose to purchase B-Scan kits
that contain the Instrument Software Option, B-Scan EncoderCar, and B-Scan Encoder Cable.
EPXT-BSCAN-KIT-10: (10 foot encoder cable)
EPXT-BSCAN-KIT-25: (10 foot encoder cable)
EPXT-BSCAN-KIT-50: (10 foot encoder cable)
EPXT-BSCAN-KIT-100: (10 foot encoder cable)
The transducer and transducer cable must be purchasedseparately.
GageView Pro must be purchased separately.
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B-Scan Encoder & Accessories
D790-SMTransducer Cable
Extension Pole BracketOption: EP4/EPB
Magnetic Wheels Option:EP4/MW (1 Pair)
Encoder CableInput
Probe Holder:EP4/PH
Water Input
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B-Scan Option Installation The EPOCH XT must be updated to Operating Software version
1.1.1.1 or higher.
If the B-Scan Option is NOT activated in your instrument, go tothe INSTR SETUP Menu STATUS Tab as shown below.
Provide Olympus NDT with the last 4 characters of yourinstruments serial number.
Olympus NDT will provide an Option Key number to activate the
software option.
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EPOCH XT B-Scan Setup & Activation
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B-Scan Option Initial Setup The EPOCH XT must be properly setup and calibrated before the
B-Scan option is turned ON.
Pulser / Receiver Settings
Calibrate for Zero Offset and Velocity
Gate 1 should be setup to cover the minimum and maximum expectedthickness values for the inspection.
The screenshots below show a complete setup ready for B-Scan
to be turned on.
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B-Scan Option Initial Setup A Minimum Depth Alarm may be used to alert the operator to
areas where the part thickness has dropped below a userdefined threshold.
The Floating Gate option may be used to set the height of theEPOCH XTs gates. This option allows the gates to be set at alevel from -1dB to -14dB (1 dB increment) from the height of thegated echo.
Avoid echo drop out when scanning on heavily corroded parts.
Maximize measurement consistency by measuring at the same point onthe edge of the echo envelope.
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B-Scan Option Activation The B-Scan Option is activated in the MEAS SETUP Menu
OPTIONS Tab B-SCAN Sub Tab.
There are 3 Encoder Modes available: Manual The encoder is not active. B-Scan updates according to a time rate
that is set with the PRF control.
Uni-Directional Encoder is active. Scan moves forward when encodermoves forward or backward.
Bi-Directional Encoder is active. Scan moves in the same direction asencoder.
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EPOCH XT B-Scan Bi-Directional Example
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Bi-Directional B-Scan Example Turn the B-Scan Feature ON
Choose Encoder Mode = Bi-Directional
Encoder Pulses: This is an encoder
specification. The Remote Scanencoder that Olympus NDT sells outputs50 pulses / inch.
Take Reading Every: This is theresolution of the B-Scan
Start Coordinate: Set to zero or todesired value.
Save Ascan Modes: No Storage: No A-Scans saved during scan
Store on MinDepth: Store A-scans thatcorrespond to the minimum thickness in thescan.
Store on Alarm: Store A-scans when theinstrument alarm is triggered.
Store All: Store all A-Scans during the B-Scan.
Press MEAS to return to Live Screen.
NOTE: Saving A-Scans during a B-Scancurrently limits the scan rate to 60Hz.
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Bi-Directional B-Scan Example B-Scan View
SR = Scan Rate
Min Depth Alarm
Bb = B-ScanBi-Directional
Start New Scan (Old Scan
is erased)
Change to dual A & BScan View
DT = Distance Travelled
Thickness Limits defined
by Gate 1 Start and Width
Start = Start Scan
Change to A-Scan View
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Bi-Directional B-Scan Example A-Scan View
SR = Scan Rate
Bb = B-ScanBi-Directional
Start New Scan (Old Scan
is erased)
Change to dual A & BScan View
DT = Distance Travelled
Minimum Depth Alarm
Stop = Stop Scan
Change to B-Scan View
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Bi-Directional B-Scan Example A & B-Scan View
SR = Scan Rate
(only active in encoded
scans)
Bb = B-ScanBi-Directional
Min Depth Alarm
Start New Scan (Old Scan
is erased)
Change to B-Scan View
DT = Distance Travelled
(only active in encoded
scans)
Min Depth Alarm
Thickness Limits
defined by Gate 1 Start
and Width
Stop = Stop Scan
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Bi-Directional B-Scan Example Review
Min Depth Alarm Triggered
To review the stored B-Scan you must first stop the scan using the F1 key.
As the Review Cursor is moved along the B-Scan the EPOCH XT will displaythe Distance Travelled (DT) for the point as well as any saved A-Scans.
Review Cursor Move
Left and Right with
arrow keys to review
B-Scan thickness data.
This view shows the A-
Scan that has been
stored at this point in
the B-Scan.
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EPOCH XT B-Scan Manual Example
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Manual B-Scan Example Turn the B-Scan Feature ON
Choose Encoder Mode = Manual
Direction: The EPOCH XT will allow
the Manual Scan to run from Left toRight or from Right to Left.
Stop on Loss Of Signal (LOS): Thiswill cause the scan to stop if there isno signal in the gate. When a signal
reappears the instrument inserts ablank line in the scan.
Save Ascan Modes: No Storage: No A-Scans saved during scan
Store on MinDepth: Store A-scans thatcorrespond to the minimum thickness in thescan.
Store on Alarm: Store A-scans when theinstrument alarm is triggered.
Store All: Store all A-Scans during the B-
Scan. Press MEAS to return to Live Screen.
NOTE: Saving A-Scans during a B-Scancurrently limits the scan rate to 60Hz.
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Manual B-Scan Example B-Scan ViewSR = Scan Rate
(only active in encoded
scans)
Min Depth Alarm
Bm = B-Scan Manual
Start New Scan (Old Scan
is erased)
Change to dual A & B
Scan View
DT = Distance Travelled
(only active in encoded
scans)
Thickness Limits defined
by Gate 1 Start and Width
Start = Start Scan
Change to A-Scan View
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Manual B-Scan Example A-Scan ViewSR = Scan Rate
(only active in encoded
scans)
Bm = B-Scan Manual
Start New Scan (Old Scan
is erased)
Change to dual A & B
Scan View
DT = Distance Travelled
(only active in encoded
scans)
Minimum Depth Alarm
Start = Start Scan
Change to B-Scan View
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Manual B-Scan Example A & B-Scan ViewSR = Scan Rate
(only active in encoded
scans)
Bm = B-Scan Manual
Min Depth Alarm
Start New Scan (Old Scan
is erased)
Change B Scan View
DT = Distance Travelled
(only active in encoded
scans)
Thickness Limits
defined by Gate 1 Start
and Width
Start = Start Scan
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Manual B-Scan Example A & B-Scan View
Min Depth Alarm TriggeredLoss of Signal
When running a Manual B-Scan the scan rate is controlled with the PRFcontrol.
Distance Traveled (DT) and Scan Rate (SR) are not active in Manual Scan
mode. You may choose different measurements in Manual MeasurementSelection mode.
Review Cursor Move
Left and Right with
arrow keys to review
B-Scan thickness data.
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EPOCH XT B-Scan Data Logging
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EPOCH XT B-Scan Saving Files B-Scan files may be stored in any file type in the EPOCH XT. The most
common are: CAL Files: Used to store B-Scan setups
INCREMENTAL Files: Used for most inspection data storage
When the SAVE key is pressed the operator has two choices: SAVE SCREEN: This saves a screen
shot of the B-Scan along with the
instrument setup. This can be recalled
as a setup if desired.
SAVE FULL: This saves the entire
B-Scan along with stored A-Scans andthe instrument setup. This can be
recalled as a setup if desired.
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EPOCH XT B-Scan File Review When a Full B-Scan has been saved the instrument will display a
compressed B-Scan view in the Review Screen. To view the data in itsuncompressed format you must do one of the following: Transfer the file to GageView Pro
Recall the file and review using the review cursor.
When a B-Scan screenshot has been saved the instrument will display
an uncompressed view of the B-Scan in the Review Screen.