EPOCH 600 Training Presentation. EPOCH 600 Introduction Olympus NDT is proud to introduce the latest...

EPOCH 600

Training Presentation

EPOCH 600 IntroductionOlympus NDT is proud to introduce the latest innovation in the portable flaw detector line:

EPOCH 600

EPOCH 600 Introduction- Overview

Proven EPOCH 100% digital technology

Vivid, transflective VGA display

IP66 or IP67 rating

EN12668-1 compliant

Horizontal layout with intuitive EPOCH user interface

The EPOCH 600 provides a powerful combination of performance and economy as a class-leading mid range flaw detector:

EPOCH 600 Introduction- ConfigurationsThe EPOCH 600 allows multiple configurations for all user preferences:

BNC or LEMO® 1 transducer connectors Optional Analog Output English, Japanese, Chinese or Symbolic keypad overlays

Pulser/Receiver Functions

Pulser PerformanceEPOCH 600 Pulser Features:

PerfectSquare™ Tunable Square Wave Pulser Technology: standard

Pulser energy selection of 100V, 200V, 300V or 400V

Auto or Manual PRF adjustment from 10Hz to 2000Hz: standard

Single-Shot Measurement Architecture: The EPOCH 600 Series maintains the high standard set by the EPOCH XT, providing measurement rate equivalent to PRF rate at all PRF settings

Pulser Design designed for compliance to EN12668-1

Receiver PerformanceEPOCH 600 Receiver Features:

Digital high dynamic range receiver

– Gain adjustment over full 110dB range while frozen

– Gate adjustment with digital measurements while frozen

– High dynamic range for DAC/TVG and DGS/AVG

Eight digital receiver filter settings, EN12668-1 compliant

– 0.2 – 10 MHz

– 2.0 – 21.5 MHz

– 8.0 – 26.5 MHz

– 0.5 – 4.0 MHz

Analog Output: optional

– Programmable 1V or 10V scaled output for amplitude or thickness measurements

– 0.2 – 1.2 MHz

– 1.5 – 8.5 MHz

– 5 – 15 MHz

– DC – 10 MHz

Gate Settings Gate 1 and Gate 2 Independent

Measurements Gates: standard

Echo-to-Echo Measurement with Gate 2 Tracking: standard

Interface Gate: optional

Independent Gate Alarms– Positive, Negative, MinDepth– Audible and Visual Alarm on LEDs

1 & 2– Alarm output from 9-pin D-sub

connector on back of unit» Gate 1 = Pin 8, Gate 2 = Pin 9

Special Waveform ModesThe EPOCH 600 provides multiple methods of displaying acquired A-scans to ensure the information displayed always represents the most important and relevant data for the inspection.

The methods included are:– Composite A-scan

– Max Amplitude

– Min Thickness

– Averaged A-scan

Special Waveform Modes To Access the Special Waveform Modes:1. In the Display Setup menu, press

[F2] Meas Setup

2. Press [P6] to enter the Special menu

3. Use the knob, arrows, or the P-keys to change the A-Scan Mode

4. Press the [NEXT GROUP] key

5. Use the knob, arrows, or the P-keys to change Averaging

6. Press the [ESC] key to return to the main screen

Composite A-Scan Mode Composite A-scan – Standard display mode from the EPOCH XT, this

feature displays all A-scans acquired in between screen update rates (multiple A-scans when PRF > 60Hz) and overlays them together on the screen. – Even at high PRF, the operator will not miss a single indication!

– Can create enveloping effect with fast scanning

Screen Updates

Individual A-scans acquired at PRF

Information Displayed Composite A-scan Mode

Maximum Amplitude A-Scan Mode Max Amplitude – Analyzes acquired A-scans between display updates

and displays only the A-scan with the highest gated amplitude reading. – Cleans up signal noise in applications where highest amplitude readings

are the key factor for inspection.

– Does not display all acquired A-scans

Screen Updates


Information Displayed Max Amplitude Mode

Maximum Amplitude

A-scan

Maximum Amplitude

A-scan

Minimum Thickness A-Scan Mode Min Thickness – Analyzes acquired A-scans between display updates

and displays only the A-scan with the minimum thickness reading. – Cleans up signal noise ratio for more precise thickness measurements

when minimum thickness is the key factor for inspection.

– Does not display all acquired A-scans

Screen Updates


Information Displayed Min Thickness Mode

MinimumThickness

A-scan

MinimumThickness

A-scan

A-Scan Averaging Averaged A-scan – New functionality allows the operator to view an

average of acquired A-scans. – The user can select the precision of the averaging, choosing between 2X,

4X, 8X, 16X, or 32X averaging to remove spurious noise signals from the A-Scan while maintaining relevant signals.

– Note: At higher averaging rates, the screen update rate may be less than 60Hz (depending on the PRF value).

Averaging Off

16X Averaging

EPOCH 600 Performance Features: Summary

Standard square wave pulser with PerfectSquare™ technology Digital receiver filters for excellent signal to noise ratio Digital high dynamic range receiver for unmatched signal stability EN12668-1 compliance Single shot waveform acquisitions up to 2000 Hz PRF Composite, Max Amplitude and Min Thickness A-Scan Display Modes Waveform Averaging

Standard software features including:– Dynamic DAC/TVG– Onboard DGS/AVG– Curved Surface Correction– Auto or Manual PRF Adjustment– Gate 2 Tracking and Echo to Echo

Measurements

The EPOCH 600 maintains the performance of current generation EPOCH flaw detectors in a highly portable package:

Optional software features including:– AWS D1.1/D1.5 Rating – Template Storage – API 5UE– Waveform Averaging– Expanded Data Logger– Interface Gate– Corrosion Module– Backwall Echo Attenuator (BEA)

PHYSICAL FEATURES

Improved Display QualityThe EPOCH 600 features a new, high quality display

Full VGA resolution (640 x 480 pixels)

Vibrant, bright colors

Transflective for excellent outdoor visibility

Low power consumption to improve overall battery life

New Enclosure DesignThe EPOCH 600 features a brand new design on a traditional concept

New, Sleek Design New color scheme Keypad updated with contemporary

style and feel

Horizontal Layout Optimizes A-scan viewing area Intuitive push-button navigation Broad market appeal

Size and Weight 1.68 kg (3.72 lbs) 236 mm x 167 mm x 70 mm

(9.3 in x 6.57 in x 2.76 in)

Over 50% lighter and 40% smaller by volume than the EPOCH 1000!

Knob or Navigation PadThe EPOCH 600 is available with either an adjustment knob or navigation pad to meet the preference of any user!

Continuous-Position StandThe pipe stand for the EPOCH 600 utilizes a brand new design:

Friction hinges for continuous positioning from 0° to 180° Recessed instrument housing to hide closed stand 90° bend for improved stability with minimized opened dimension

Environmental Standards

Environmental Standards IP Rated:

– IP66 (knob configuration)– IP67 (navigation pad

configuration)

MIL-STD-810F– Explosive Atmosphere– Drop Test– Storage and Operating

Temperatures

Shock and Vibration tested to IEC 60068

Inputs and Outputs: Office DoorThe EPOCH 600 has several data input and output capabilities.

USB On-the-GO (OTG)– PC communication– Direct printing to PCL 5 USB printers

Micro SD card– 2GB external (removable)– 2GB internal (data retrieval

even if instrument is damaged)

Inputs and Outputs: Back of InstrumentThe EPOCH 600 has several data input and output capabilities.

VGA Output– 15-pin connector

Combination RS232 and Alarm Output

– 9-pin connector

Analog Output (Optional)– Single 0-1V or 0-10V Analog

Output signal

Analog Out

INSTRUMENT ACCESSORIES

Included DocumentationThe EPOCH 600 offers three forms of standard reference documentation:

Quick Start Guide– New document offered for EPOCH flaw detector line

– Provides essential overview topics such as:» What’s in the box?» Power and charging options» User interface overview» Reference guide to flags

and symbols

– Intended to provide enough information for a seasoned flaw detector user to begin daily functions

Included DocumentationThe EPOCH 600 offers three forms of standard reference documentation:

Basic Operation Manual– Concise operator’s guide for all major functions

(60-70 pages)– Printed version included with every instrument– Translations available in:

» English, Spanish, French, German, Italian, Japanese, Chinese

Full Operation Manual– Detailed and comprehensive operation manual– Includes Basic Operation Manual as first section– Included with every instrument as PDF file

on a CD– All available translations are included with every instrument

Transport Case and Input and Output Cables USB OTG Cables

– Cable for PC Communication (Type: Mini AB to A)» EPLTC-C-USB-A-6 (U8840031)

– Cable for Printing (Type: Mini AB to B)» EPLTC-C-USB-B-6 (U8840033)

VGA Output Cable – 600-C-VGA-5 (U8780298)

Alarm Output Cable – EP1000-C-9OUT-6 (U8779017)

RS232 Cable– 600-C-RS232-5 (U8780299)

Transport Case Blow Molded to Accommodate

– Instrument– Transducers– Small cables and accessories– Operator’s Manual– Instrument Charger

Included in Instrument Price Part Number: 600-TC-S (U8780294)

Batteries and Battery Chargers Standard Lithium Ion “smart” battery

– Part Number: 600-BAT-L (U8760056)

– One (1) included with each instrument

– Estimated Battery life (Standard Settings): 12-13 hours

– May be charged inside instrument. Recharge time estimated 2-3 hours

Standard AC-DC charger adapter– Part Number: EP-MCA (U8 varies based on power cord selected)

– Same as charger/adapter used for all current EPOCH models and new 38DLPLUS corrosion gage

AA Alkaline Battery Tray– Accommodates 8 ‘AA’ size alkaline batteries for back-up remote power

– Up to 3 hours of battery life

– Part Number: 600-BAT-AA (U8780295)

Battery Installation

External Battery Charger

Optional external battery charger Part Number: EPXT-EC (U8 varies

based on power cord selected) Same as external charger used for

EPOCH 1000 Series, EPOCH XT, EPOCH LTC

Recharge time 2-3 hours Includes battery calibration feature to

restore batteries to near-original capacity

Compatible AccessoriesOther compatible accessories include:

Micro SD Memory Card (Replacement)– Part Number: MICROSD-ADP-2GB (U8779307)– Includes Micro to standard SD adapter

Chest Harness– Part Number: EP4/CH (U8140055)

Display Protectors– Part Number: 600-DP (U8780297)

Replacement Pipe Stand Kit– Part Number: 600-STAND (U8780296)– Include pipe stand, hinges, mounting brackets and screws

OPERATION AND USER INTERFACE

Instrument Layout The overall layout of the EPOCH 600 is similar to that of the EPOCH

1000 Series.– Horizontal (landscape) design is a more basic version of EP1000 user

interface

– Keypad has fewer direct access keys than the EPOCH 1000 and therefore has a more menu-driven approach (similar to the EPOCH LTC)

Instrument Layout The EPOCH 600 employs a unique combination of controls and

navigation features to produce an intuitive and simple user interface.

– Simple menu system with minimal sub-menus

– Basic navigation using the keypad

– Direct access keys for frequently used functions

– Parameter adjustment using the knob (or arrow keys)

Instrument Layout The display is laid out to optimize A-scan presentation while providing

clearly visible measurements, menus, and parameter labels

Calibration/Setup parameters are accessed through the different menus on the unit

When inspecting, the most frequently used keys/functions are directly accessible from keypad (Gates, Range, Auto-XX etc)

Instrument Layout In order to accommodate different user needs and preferences, the EPOCH

600 is available in two hardware configurations: – Adjustment knob

(similar to EP1000 Series)– Navigation pad with arrows

(similar to EPXT and EPLTC units)

Both unit configurations have the same software user interface but use different methods of parameter adjustment (knob and arrows)

General Overview

Function Keys

Parameter Keys

Direct Access Keys

A-Scan Waveform

Adjustment Knob

Knob Lock Power Status LEDAlarm LEDs

User Interface

Menu Groups

Menu Parameters (Adjustable)

Battery Indicator

Micro SD Card Indicator

Group Menu Number

User Interface

A-scan MeasurementGate 1

Up to Five Measurement Boxes

Range and Direct AccessParameter Box

Gain Indicator

A-scan MeasurementGate 2

Instrument Navigation F Group Keys

– Vertical F keys activate the corresponding Group menu

P Parameter Keys – Horizontal P keys highlight the

parameter above for adjustment

– Horizontal P keys activate/open the parameter function/menu above

User Interface Standard Group Menus

Instrument Navigation Next Group Key

– Used to scroll through group menus

» Allows for quick and easy access to all the different menu group functions

– Used to navigate through parameters in a menu

Instrument Navigation Direct Access Keys

– Direct access keys are located on the left side of the keypad

– Allow direct control over commonly adjusted parameters, including

» Gate Position » Screen Range» Gain Level» Peak Memory» Auto-XX%» Save

– The Navigation pad is similar to previous EPOCH units (1000 Series, XT, LTC) to provide easy transitions within the EPOCH product line

EPOCH 600 Knob EPOCH 600 Navigation Pad

Instrument Navigation

Auto-XX% Key– Automatically adjusts gated signal amplitude to XX% of Full Screen Height

for maximum flaw inspection efficiency

– Allows direct access to automatic gain adjustment of gated signal, even when Gate parameter adjustment is not active

» User no longer has to use Gate menu to access Auto-XX%

– Applies to active Gate or last active Gate

Instrument Navigation Check and Escape Keys

– The EPOCH 600 features Check and Escape keys (as on the EPOCH 1000 Series)

– The CHECK key performs the following functions:» Toggle between coarse and fine parameter adjustment (Knob version only)» Confirms actions in the data logger

Instrument Navigation Check and Escape Keys (cont.)

– The ESCAPE key performs the following functions:» Exits menus» Returns to the “Home” position from any menu (top of Basic menu)

Instrument Navigation Direct Parameter Escape

» Returns to previous menu from any direct access parameter» Both the NEXT GROUP and ESCAPE keys perform this function

DAC/TVG Menu

GATES key pressed

ESC or NEXT GROUP returns to DAC/TVG Menu

Instrument Navigation LED Indicator Lights

– The EPOCH 600 provides one power and three alarm indicator lights located on the front panel above the display window

» The alarm indicators illuminate in red when the corresponding date alarm is triggered

» The power indicator illuminates in red when the internal battery is charging, and in green when the battery is fully charged

Gate 2 Alarm Indicator

Gate 1 Alarm Indicator

Power Indicator

Instrument Navigation Adjustment Knob

– The adjustment knob on the EPOCH 600, is responsible for parameter adjustment and value slewing.

– Allows the user to adjust values such as angle, range, gain, velocity, etc, up and down in either coarse or fine increments.

Instrument Navigation Knob Lock

– The user has the ability to lock the knob to prevent accidental parameter value changes during an inspection.

» When the LOCK key is pressed, an indicator will show on the top of the screen» All parameters will be locked for adjustment, indicated by a strikeout line

through the parameter text

LOCK Key

LOCK Indicator Locked Parameter

Instrument Navigation Arrow Keys

– The arrow keys on the navigation pad perform the same functions as the knob and are used for parameter adjustment

– Adjust the value of a selected parameter

» UP/DOWN arrows provide coarse adjustment while the LEFT/RIGHT arrows provide fine adjustment

– Enter alphanumeric characters for datalogging

Instrument Navigation Parameter Menu Navigation

– Next Group key allows navigation through entire menu

– In some menus, knob or left/right arrows adjusts item between preset values, such as grid display modes

– In other menus, knob or left/right arrows adjusts numeric value of highlighted item

– Preset values for a given parameter are available for direct access over P parameter keys at bottom of screen

Instrument Navigation Coarse and Fine Adjustment

– Coarse and Fine adjustment are available for most adjustable parameters on the EPOCH 600.

– Knob Version» Once a parameter is highlighted for adjustment, the user can toggle between

Coarse and Fine adjustment of the parameter using the key. If the parameter title is [bracketed] it is being adjusted in coarse steps. If the parameter title is not bracketed, it is being adjusted in fine steps

– Navigation Pad Version» Once a parameter is highlighted for adjustment

Double UP and DOWN arrows provide coarse adjustment Single LEFT and RIGHT arrows provide fine adjustment

Coarse Adjustment

Fine Adjustment

Editable Parameters

This feature allows the user to customize the preset values that are displayed during coarse adjustment for these specific parameters.

To access the Editable Parameters menu, select Inst Setup > Edit Parameters.

Editable Parameters The instrument comes with certain preset values for each of the parameters,

but the user can change any of these values as necessary to meet their needs.

Users can add up to 7 preset values for each parameter – Except for Gain Step, which only allows 2 preset values

Editable Parameters:– Gain Step– Gain– Range– Delay– Freq– Angle– Thick– X Value

Editable Parameters- Changing Values To change a preset value:

1. Using the NEXT GROUP key, select the value you want to edit and use the adjustment knob or arrow keys to adjust the value.

2. The values can be adjusted in coarse or fine increments by pressing the CHECK key or using the corresponding arrow keys.

3. Press [P1] to Clear the currently selected value.

NOTE: For parameters that have different values in Metric and English units (e.g. Velocity), the user can store different values in each measurement system. Only the values for the current units setting will be displayed in the Editable Parameters menu.

Editable Parameters- Coarse Adjustment Adjusting the parameters below using Coarse adjustment will toggle through the preset

values from the Editable Parameters screen:

– Velocity– Frequency– Angle – Thick – X-Value

Fine adjustment will scroll through all non-preset values.

Fine Adjustment

Coarse Adjustment

Coarse Adjustment “Rounding” When changing parameter values using Coarse adjustment, all digits after the

digit being adjusted are set to zero for the following parameters:

– Range– Delay– Zero

Fine adjustment will allow the user to modify the remaining digits.

Fine Adjustment Coarse Adjustment

Software Option Activation The EPOCH 600 has a set of software options that can be purchased to

enhance or add features to the instrument. These include:

– AWS D1.1/D1.5

– Template Storage

– API 5UE

– Expanded Datalogger

– Waveform Averaging

– IF Gate These software options can be

purchased along with the instrument or can be activated remotely in the field if purchased at a later date.

Once a software option has been purchased, it will show as Licensed in the Inst Setup > Software Options menu.

– This menu is also used to enter activation codes when options are purchased.

– Corrosion Module

– Backwall Echo Attenuator

TROUBLESHOOTING

Troubleshooting Techniques Instrument Resets

– The EPOCH 600 Series has several instrument resets built into the software

» Location: In the Files menu, press [F2] for Manage, then select [P1] for Reset

» Corrects symptoms: Parameter cannot be adjusted Function/parameter seems to be

missing Instrument is operational but “acting

funny”

» Resets include: Measurement Reset – maintains data

logger, restores default parameters Storage – clears data logger,

maintains live parameters Master– clears data logger,

restores default parameters (combination of Measurement and Storage)

STRAIGHT BEAM CALIBRATION

Required Items

Cable– BCM-74-6

Couplant– B-2

Transducer– A109S-RM

Test Block– 2214E (5-step 0.1-0.5in)

Initial Settings First the user must set the parameters on the unit so that the correct

waveforms will show on screen.– Basic Menu

» [P1] Velocity- 0.2320 in/µs (long. wave in steel)» [P2] Zero- 0.000µs» [P3] Range – 1.000 in

– Pulser Menu» [P1] PRF Mode- Auto» [P3] Energy- 100V» [P4] Damping- 50 Ω» [P5] Mode- P/E (pulse-echo)» [P6] Pulser- Square» [P7] Frequency- 5MHz

– Receiver Menu » [P1] Filter- 1.5 – 8.5 MHz» [P2] Rectification- Full

Zero Calibration1. Set the Gain to 12.0dB

2. Couple the transducer to the 0.200 in step

3. Set Gate 1 so that it surrounds the first backwall echo from the 0.200 in step

4. Use Auto-XX to adjust the gain so that the signal is at 80% FSH

Zero Calibration

5. In the Basic menu, press [F5] Auto Cal to bring up the Calibration parameters

6. Press [P1] and set the Type to Thickness(If more than just Gate 1 is active you will have other options for Type)

7. Press [P3] for CAL Zero

8. Use the adjustment knob (or arrow keys) to set the Cal Zero parameter to 0.200

9. Press [P3] to Continue on to the velocity calibration

Velocity Calibration

1. Couple the transducer to the 0.500 in step

2. Set Gate 1 so that it surrounds the first backwall echo from the 0.500 in step

3. Use Auto-XX to adjust the gain so that the signal is at 80% FSH

Note that the previously entered value is displayed for reference during part 2 of calibration.

Velocity Calibration

4. Press [P2] for CAL Velocity

5. Use the adjustment knob (or arrow keys) to set the Cal Velocity parameter to 0.500

6. Press [P2] to select Done and complete the calibration

7. Adjust the Range back to the starting value of 1.000 in

Calibration Complete! Verify that your unit is properly calibrated by checking the thickness

measurement at each step on the block.– NOTE: Make sure to move the gate so it surrounds the first backwall echo for each

step you are on.

ANGLE BEAM CALIBRATION

Required Items Materials:

CABLE– LCB-74-6

COUPLANT– B-2

TRANSDUCER + WEDGE– A431S-SM– ABWS-6-45

TEST BLOCK– TB7541-1

Calibration Steps 4 Steps for an Angle Beam Calibration

1. Locate the Beam Index Point (BIP) of the Probe.

2. Verify the Refracted Angle

3. Calibrate for Distance (Using the Auto-Cal Feature)

4. Calibrate for Sensitivity

Initial Settings

First the user must set the parameters on the unit so that the correct waveforms will show on screen.– Basic Menu

» [P1] Velocity- 0.1280 in/µs (shear wave in steel)

» [P2] Zero- 0.000µs

» [P3] Range – 10.000 in

– Pulser Menu

» [P1] PRF Mode- Auto

» [P3] Energy- 200V

» [P4] Damping- 50 Ω

» [P5] Mode- P/E (pulse-echo)

» [P6] Pulser- Square

» [P7] Frequency- 5MHz

– Receiver Menu»[P1] Filter- Standard»[P2] Rectification-Full

– Trig Menu»[P1] Angle- 45.0

Locating the Beam Index Point1. Align the wedge with the zero mark on the “IIW Type I Block”

2. Move the transducer forward and backward until the echo amplitude from the 4” arc is peaked (The Peak Memory function can be used for this by pressing [PEAK MEM])

3. After the signal has been peaked, mark on the wedge directly over the zero mark on the IIW. This is the Beam Index Point.

Step 1/4

1. Position the transducer over the appropriate angle mark on the IIW Block (In this case it is the 45 deg located on the bottom side of the block).

2. Move the transducer forward and backward to “peak up” echo from the large circular hole in the block. Peak Memory aids in this process by pressing [PEAK MEM].

Verifying the Refracted Angle Step 2/4

3. After the signal is peaked, hold the transducer stationary. The Beam Index Point on the wedge will be located above an angle marker on the IIW block.

– This is the REFRACTED ANGLE (Beta) for the transducer and wedge.4. If the Beta Value differs from the one initially entered, enter the proper angle under

the Trig menu by pressing [P1] Angle

Verifying the Refracted Angle Step 2/4

1. Couple the transducer to the IIW Block so that the Beam Index Point is directly over the 0 degree mark.

4” 1”

Calibrating for Distance Step 3/4

3. Position Gate 1 over the 4 in. reference echo and use Auto-XX to adjust to 80% screen height.

4. In the Basic menu, press [F5] Auto Cal to bring up the Calibration parameters

5. Press [P1] and set the CAL Mode to Soundpath- (If more than just Gate 1 is active you will have

other options for CAL Mode)

6. Press [P3] for CAL Zero

7. Use the adjustment knob (or arrow keys) to set the Cal Zero parameter to 4.000in

8. Press [P3] to Continue on to the velocity calibration


9. Without moving the probe, position gate over the 9” reflection echo.– You may have to increase the

Gain first in order to see the 9 in. echo

10. Use the Auto XX% feature to bring the 9” reflection to the desired screen height

4” 1”


11. Press [P2] for CAL Velocity

12. Use the adjustment knob (or arrow keys) to set the Cal Velocity parameter to 9.000

13. Press [P2] to select Done and complete the calibration

14. Adjust the Range back to the starting value of 10.000 in


1. Flip the IIW block over and face the transducer toward the 0.060 in. side drilled hole.

2. Set the Range to 2.000in

3. Peak up the echo from the side drilled hole to 80% screen height.

– The Peak Memory function can be used for this by pressing [PEAK MEM]

4. Press [2nd F], [dB] (REF dB) to lock in the instrument’s Reference Gain and enable the Scanning Gain function.

5. The Shear Wave Calibration is now complete.

0.060” sidedrilled hole

Calibrating for Sensitivity Step 4/4

DATA LOGGER

Data LoggerThe EPOCH 600 Data Logger is managed in a separate file menu similar to the EPOCH 1000 Series. This menu is accessed by scrolling to menu 5 and selecting [F1] for File

Data Logger File Types The standard Data Logger has two file types:

– Incremental Files (INC): Name the file and give the instrument a starting ID. As the operator saves the ID will increment automatically.

– Calibration Files (CAL): These files store only one ID.

There is an Expanded Data Logger option available that provides corrosion style data logger file types – These file types include: Sequential, 2D-Grid, Boiler, etc

– The part number for this option is EP600-XDATA (U8140150)

Data Logger Storage– 2 GB of onboard memory (practically unlimited)

– Onboard memory captured on Micro SD card mounted to PCB. In the event of damage to the instrument, data logger contents can be rescued by removing card from PCB at an authorized service location.

Default Incremental File – NONAME00– The EPOCH 600 has a default incremental file called NONAME00. This

allows the operator to begin storing data immediately on power-up. The filename can be changed later for reporting purposes.

Data Logger Storage

File Operations- Creating a FileThe operator uses the Create menu to setup and create new files. The [NEXT

GROUP] key is used to move between fields.

NOTE: Fields that are required for file creation are marked with an *.

To create a file:1. Select the file type (INC or CAL)

2. Enter the file name

3. Enter a Description, Inspector ID, and Location note if desired

4. Enter an ID prefix if desired (INC files only)

5. Enter the Start ID (INC files only)

6. In the Create field, choose one of the create options shown above the P-keys

File Operations- Virtual KeypadTo enter alphanumeric characters on the EPOCH 600, the [P1] Edit key is pressed to bring up the virtual keypad.

Using the knob or arrow keys, the user selects the character they want to type.

Press [F5] INS to Insert the selected character into the highlighted field

Use [F1] << and [F2] >> to scroll through the typed characters in the selected field

Press [F4] DEL to Delete the selected character

Press [F1] Edit again to turn off the virtual keypad, or press [NEXT GROUP] to move to the next field

File Operations- Create Menu When creating a file, the user must select one of three options listed

above the P-keys:– [P1] = Create

– [P2] = Create & Open – [P3] = Create & Save

Create:– This will simply create the file and

return the user to the main screen.– The user must then open the file

prior to saving data. Create & Open:

– This will create the file, open it, and return the user to the live screen to begin saving data.

– Typically used for data files. Create & Save:

– This will create the file and save the current instrument setup.

– Typically used for CAL files.

File Operations- Open MenuThe operator uses the Open menu for multiple functions including opening and recalling previously created files. The following slides describe the menu functions.

File Operations- Open Menu[P1] Details

– Allows the operator to view information about the file including Description, Inspector ID, Location Note, Creation Date, and Total ID Count.

[P2] Open– Opens the selected file and returns the operator to the live screen. Optionally, File Open & Recall can be activated, which also sets the active parameters of the saved ID. This is accessed through Inst Setup > General.

File Operations- Open Menu [P3] Contents

– Displays the waveform, measurements, and setup parameters for the selected file. For INC files, the user can select which specific ID they want to view. Setup data can also be viewed and recalled from this screen.

– Pressing [P1] will toggle between the stored waveform and setup parameters.

File Operations- Open Menu [P4] Summary

– Displays a list of all the saved measurements for all the IDs in the file. The user can also view a statistical report of the measurements in the file.

File Operations- Saving Data The operator can save data whenever there is an active file and an ID

has been entered. – The NONAME00 file is automatically created on every EP600 unit to

ensure that there is always an active “save to” location open.)

To save data into a file, press [2nd F] [FREEZE] (SAVE).– If you are saving data to an incremental file, the ID will automatically

increment to the next ID after saving.

When you save, the EP600 saves the following information:– File Name– ID– Measurements (up to 5)– A-Scan waveform– All instrument setup parameters– Alarm information

– Any display flags– Gate positions– Gate measurement mode icons– Leg indicators for both gates– Peak memory or peak hold A-Scans– Software features/option setups

File Operations- Parameters Recall As an alternative to simultaneously opening and recalling a file, the

user can recall a stored setup from the Contents screen (INC and CAL files) or using the Quick Recall feature (CAL files only).

– In the Contents screen, select the ID with the setup to be recalled, and press [P2] Recall.

– For Calibration files, simply press [P4] Quick Recall from the datalogger menu. A list of CAL files in the instrument will be displayed. Then press [P1] to Recall the selected CAL file and return to the live screen.

File Operations- Manage Menu

– Reset – Instrument resets (Parameters, Master, etc)

– Export – New feature allowing individual file export to Micro SD card

– Import – New feature allowing individual file import from Micro SD card

– Edit – Allows for editing of file name and optional description parameters

– Copy – Creates a duplicate of a selected file

– Delete – Deletes a selected file

File Operations- Export When exporting a file, the user must select one of three file types:

1. Binary files include all saved parameter and waveform information and can be shared between EPOCH 600 units

2. CSV files include parameter data only for viewing in Microsoft Excel

3. XML files contains parameter and waveform data for viewing in external software programs

To Export a file:1. Select Manage > Export

2. Choose the desired file and press [NEXT GROUP]

3. Select the File Type

4. Press [NEXT GROUP], then [P1]

File Operations- Import The Import menu will display a list of all binary file types stored on the Micro

SD card.

– Only binary files can be imported to the EPOCH 600

To Import a file:1. Select Manage > Import

2. Choose the desired file and press [NEXT GROUP]

3. Press [P1] to create a name for the imported file

– NOTE: The imported file cannot have the same name as a file already stored on the instrument

4. Press [NEXT GROUP], then [P1]

File Operations- Import/Export Summary The chart below summarizes the different files types for Export/Import

on the EPOCH 600:

Export File

Type

Includes Parameter

Data?

Includes Waveform

Data?

Importable to other EPOCH

600 units?

Binary Yes Yes Yes

CSV

Yes

No No

Screen shots captured using

[2nd F], [F1]

Viewable in Excel only

XMLYes Yes

No

Viewable in External Software

File Operations- XML File Export Setup To utilize the XML file export function, the user MUST perform a one-time setup

step to import a XML Schema file from the microSD card to the instrument

– This file allows the instrument to properly format the XML output

To import this XML Schema file:

– Save the file E600Schema_101.xml to the microSD card– Install the card and turn the instrument ON– Navigate to the Instr Setup menu and select P5 (Misc)– Highlight “Copy XML Schema File from External SD

Card”– Press P1 (Start) to load the file

For more information XML file formatting, contact the flaw detector group

Expanded Datalogger Option The onboard datalogger can be enhanced to feature full corrosion style file

types through the Expanded Datalogger Option.

– P/N: EP600-XDATA (U8140150)

This option includes the following data file types:

– Sequential

– Sequential + custom point

– 2D Grid

– 2D Grid + custom point» For more detailed information on the above file types, refer to the EPOCH 600

user manual.

– 2D EPRI

– 3D Grid

– Boiler

Expanded Datalogger Option – File Creation Once activated, the Expanded Datalogger option allows the user to

create additional file types other than the standard CAL and INC files.

To create an advanced file:1. In the File > Create

menu, select Advanced for the file type

2. Enter the File Name

3. Enter a Description, Inspector ID, and Location Note if desired

4. Select Setup and press [P1] Ok to enter the setup menu

Expanded Datalogger Option – File Setup5. In the Create menu, select the desired advanced File Type. Available file

types are listed above the P-keys.– The example below shows a 2D file setup.

6. Using the Next Group key, fill in the parameters displayed with the selected file type.

7. When finished, select one of the Create options listed above the P-keys.

SOFTWARE OPTIONS AND FEATURES

Software Feature

Dynamic DAC/TVG

Dynamic DAC/TVG

ASME ASME-3 JIS Custom 20-80

The EPOCH 600 includes DAC and TVG capabilities as a standard feature. The EPOCH 600 includes the following standard DAC/TVG modes:

Dynamic DAC/TVG SetupThe first step in setting up DAC/TVG is to calibrate the instrument for the

intended material, inspection range and general sensitivity. This includes:

Appropriate Pulser and Receiver adjustments (filters, energy, square wave pulser, etc)

Calibration for probe delay (zero offset) and material velocity

Appropriate screen range selection

Gain adjustment to bring first reference echo to 80% full screen height

Dynamic DAC/TVG Setup

Properly Calibrated EPOCH 600

DAC/TVG Option ActivationTo Activate the DAC/TVG Option:1. In the DAC/TVG menu press [F1]

DAC/TVG

2. Press [P7] to enter the Setup screen

3. Use the adjustment knob, arrow keys, or P-keys to select the desired DAC/TVG mode


DAC/TVG Reference CorrectReference Correction: While inspecting using DAC/TVG, it is common to digitally compare the height of a reflector to the height of the curve. It is also common to use scanning gain while inspecting for defects. Scanning gain increases the height of the echo without changing the level of the curve.

An echo compared to a curve (in % or dB) while using scanning gain will not yield a true digital comparison. Reference Correction automatically removes scanning gain from the digital comparison only to allow the inspector to scan with scanning gain while still making a correct digital comparison between the echo and the curve.

Use the REF CORRECT control box to turn Reference Correction ON or OFF

DAC/TVG Curve TypeASME, ASME-3 and CUSTOM DAC/TVG Modes allow the operator to define the Curve Type for the DAC curve and Warning Level curves:

CURVE – Connects the acquired reference points with a curved line which interpolates the attenuation of sound between each reference reflector.

STRAIGHT – Connects the acquired reference points with straight line segments.

Acquiring DAC Points

Building a DAC curve on the EPOCH 600 is fast and accurate!

Capture the reference reflector

Press [P1] to Add this reflector as a DAC point

Move GATE1 to capture the next reference reflector

Repeat until curve is built

Press [P3] Done to finish

NOTE: This DAC point collection is used for all DAC types

DAC/TVG Adjustments While building a DAC curve, the EPOCH 600 allows the operator to adjust signal height of

each reference reflector using the AUTO-XX% feature.

Using AUTO-XX% to acquire each point increases the accuracy of the curve, especially in longer sound paths or attenuating materials.

– The operator can access AUTO-XX% by pressing [2nd F] [GATES]

DAC/TVG Adjustments While building a DAC curve, the operator can make adjustments to the following

gage parameters:– RANGE

– SCREEN DELAY

– GAIN

– ANGLE

– PART THICKNESS

– OUTER DIAMETER (CSC)

Live Range Adjustment

DAC/TVG Adjustments While building a DAC curve, the operator can delete a point that is acquired

incorrectly by pressing [P2] Delete.

Wrong Point Acquired DELETE to Remove

DAC/TVG InspectionAfter building or recalling a DAC/TVG curve, inspection adjustments can be made using the different parameters in DAC/TVG menu on the EPOCH 600.

These adjustments include:– DAC GAIN– GAIN STEP– CURVE NO– VIEW

DAC/TVG InspectionDAC Gain adjustment either raises or lowers the gain of both the echo and the curve.

Since DAC codes require that any indication be sized above 20% full screen height, the usable range of a basic DAC curve is often limited.

DAC Gain allows an operator to inspect indications that occur at longer sound paths in a material by simply adjusting the overall gain to bring the curve and indication higher than 20% FSH.

Previously, multiple DAC setups would have to be built and stored to inspect the full range of a test piece.

GAIN STEP defines the magnitude of the DAC GAIN adjustment

DAC/TVG InspectionInspection with DAC at multiple depths/sound path distances:

Valid Inspection(Over 20% FSH)

Invalid Inspection Area(Curve Under 20% FSH)


DAC GAIN = 0.0 dB DAC GAIN = +12.0 dB

DAC/TVG Inspection20-80 DAC mode also allows easy inspection with DAC at multiple

depths/sound path distances:

Invalid Inspection Area(Curve Under 20% FSH)


ASME DAC View 20-80 DAC View

DAC/TVG InspectionCURVE NO adjustment changes the warning curve which defines the digital comparison being made between an indication and the DAC/TVG setup.

Warning Curves allow inspectors to more accurately size indications that are relatively larger or smaller than the main DAC curve.

Typical warning curves are set at +/- 6.0dB from the main curve, as well as -14.0 dB (ASME-3).

An echo below the main curve that exactly matches the height of a -6.0dB warning curve indicates a flaw ½ the size of the reference reflector.

DAC/TVG InspectionVIEW adjustment toggles between the DAC curve view and TVG view.

TVG (Time Varied Gain) represents indications from the same sized reflector at varying depths within a material as a 80% FSH echoes by varying GAIN across the EPOCH 600’s screen range.

TVG allows faster flaw scanning by bringing potential defects to code-compliant sizing heights without constant adjustment of DAC GAIN.

VIEW adjustment allows dynamic switching from DAC to TVG based on a single DAC setup, providing the power of both methods to an operator without extensive setup time.

DAC/TVG Custom Various inspection codes exist in different markets that prescribe the use of DAC and/or TVG for flaw

sizing.

Within these codes, Warning Curve levels are often defined to meet the code’s sizing requirements. Examples are:

– ASME – One DAC curve representing the reference reflector height– ASME-3 – Three DAC curves at Reference, -6.0dB and -14.0dB– JIS – Positive and Negative curves at every +/-3.0dB– 20-80 – One DAC curve representing the reference reflector height

The EPOCH 600 features CUSTOM DAC/TVG Mode, which allows the operator to define up to 3 Warning Curves (in addition to the main Reference curve) from -24.0dB to +24.0dB from Reference.

Software Option

AWS D1.1/D1.5

AWS D1.1/D1.5The EPOCH 600 includes AWS weld rating software as an optional feature. The EPOCH 600 AWS software is intended to assist weld inspectors performing AWS-compliant inspections.

AWS D1.1/D1.5The AWS code provides inspectors with a method to classify discontinuities found in welds using ultrasonic inspection. This code uses the following formula to develop an indication rating for a reflector found during an inspection:

A – B – C = D

A = Discontinuity Indication Level (dB)

B = Reference Indication Level (dB)

C = Attenuation Factor: 2 x (soundpath in inches – 1 inch) (dB)

D = Indication Rating (dB)

An AWS D1.1 inspector must take the Indication Rating (D) that is calculated based on A, B, and C to an Ultrasonic Acceptance – Rejection Criteria table produced by the AWS in order to classify the severity of the discontinuity that has been located.

AWS SetupThe first step in using the AWS weld rating software is to calibrate the instrument

for the intended material, inspection range and general sensitivity. This includes:


Verification of wedge characteristics, such as Beam Index Point and Refracted Angle



Sensitivity adjustment from reference

AWS Setup


AWS Option ActivationTo Activate the AWS

D1.1/D1.5 Option:1. In the DAC/TVG menu press

[F3] AWS


3. Use the adjustment knob, arrow keys, or P-keys to turn the option On or Off


5. Press [P3] and enter the value to be usedfor the Ref Level (50% FSH orhigher)

AWS SetupOnce AWS is activated, the user must record

the Reference Gain value.

Bring the sensitivity reflector from the calibration block to reference height

– Note: This reference height is the valueentered during setup and will appearas the AUTO-XX% value above [P6]

Use the [P1] key to record this gain value as Ref B (Reference Gain Indication Level)

Press [P1] to accept this gain value as Ref B

The EPOCH 600 will now automatically rate all gated echoes with a D value

Software FeatureDGS/AVG

DGS/AVGThe EPOCH 600 now offers on-board DGS/AVG capabilities as a standard feature. The DGS/AVG software features a comprehensive library of transducers from both Olympus NDT and competitors.

DGS/AVG OverviewDGS/AVG is a flaw sizing method that compares the height of a reflector to a curve which

represents the expected height of a known defect size at various sound path lengths within a part. DGS/AVG is similar to the DAC flaw sizing method, but with notable differences:

Reference Curve(s) not built point by point using reference reflectors – instead, curve(s) based on DGS Diagrams which predict the echo response (and attenuation) of multiple reflector sizes over a particular sound path range in carbon steel.

DGS Diagram

DGS/AVG Overview DGS Diagrams are specific to the transducer being used for inspection.

DGS Diagrams/Curves are based on attenuation in an “ideal” carbon steel. The operator must make attenuation adjustments based on the inspection material to accurately predict the true attenuation, especially in the “far field”

DGS/AVG Setup only requires ONE reference point to create the required sizing curve

DGS/AVG SetupThe first step in setting up DGS/AVG is to calibrate the instrument for the

intended material, inspection range and general sensitivity. This includes:




Gain adjustment to bring reference echo to 80% full screen height

DGS/AVG Setup


DGS/AVG Option ActivationTo Activate the DGS/AVG

Option:1. In the DAC/TVG menu press

[F2] DGS/AVG


3. Use the [NEXT GROUP] key along with the adjustment knob, arrow keys, or P-keys to make adjustments in the DGS/AVG menu


DGS/AVG ParametersDGS/AVG setup includes up to 10 parameter selections/adjustments before

the operator can begin inspections:

Probe Type – The operator must select the type of probe used in the inspection (either Straight Beam, Angle Beam, Dual Probe, or Custom)

Probe Name – The operator must indicate exactly which probe is to be used in the inspection (DGS curves are based partially on the response of a specific probe in steel)

Reflector Type – A single reference reflection is required to build the DGS curve(s) on the EPOCH 600 – this can be from a Backwall, Flat-Bottom Hole (FBH), Side-Drilled Hole (SDH), K1/IIW Block Radius*, or K2/DSC Block Radius*

*used only with Angle Beam probe

DGS/AVG Parameters Reflector Diameter – When a Reflector Type of SDH or FBH is selected, the operator

must indicate the size of the reference hole.

Delta VT – Also known as Transfer Correction, Delta VT is a calculated value the accounts for an overall attenuation difference between a reference/calibration block and the actual inspection piece (typically caused by surface conditions or subtle material variation)

Registration Level – The value of the “critical” reference reflector for the inspection. This defines the relative height of the DGS curve and the comparison to unknown flaw reflections for rejection/acceptance criteria.

Warning Levels – DGS/AVG allows for three Warning Curves in addition to the main DGS curve. These can be set from +6.0dB to -14.0dB below the main curve, or to 0.0dB to turn these curves off.

DGS/AVG Parameters ACV Specimen – An attenuation compensation value for the inspection piece. This

value is used to adjust the DGS curve, which is based on attenuation in an “ideal” or “perfect” carbon steel, to reflect accurate attenuation response in a “real-world” test piece. This is especially important for longer sound paths. The calculation for this attenuation adjustment is defined in the code EN 583 and other documents.

ACV Calibration Block – An attenuation compensation value for the calibration block. This value serves the same purpose as ACV Specimen, but is used when capturing a reference reflector from the calibration block.

X-Value – This parameter is only used with Angle Beam probes. This value is the distance from the Beam Index Point to the front of the angle beam probe/wedge. It is used to remove this wedge distance from the Surface Distance measurement and allows operators to locate a flaw on a test piece by measuring from the front of the transducer, instead of from the Beam Index Point, which can be less accurate or difficult during inspection.

DGS/AVG Setup

Properly Adjusted DGS/AVG Parameters*ACV Specimen/Cal Block have not been calculated

DGS/AVG ReferenceOnce the DGS/AVG parameters have been appropriately adjusted, the

operator must capture the Reference Reflector to complete the DGS/AVG setup.

Capture the Reference Reflectorwith Gate1

Use AUTO-80% to bring thereflector to 80% FSH

Press [P1] Ref to capturethe Reference Reflector andbuild the DGS/AVG curve

Press [P1] YES to save the reference value

DGS/AVG Reference While acquiring the Reference Reflector, the operator can make adjustments to

the following gage parameters:– RANGE– SCREEN DELAY– GAIN– ZERO OFFSET– ANGLE– PART THICKNESS– OUTER DIAMETER (CSC)

Live Range Adjustment

DGS/AVG

Completed EPOCH 600 DGS/AVG Curve

DGS/AVG InspectionAfter building or recalling a DGS/AVG curve, inspection adjustments can be made using the different parameters in DGS/AVG menu on the EPOCH 600.

These adjustments include:– Scanning Gain

– DELTA VT

– REG LEVEL

– ACVSPEC

These adjustments (except scanning gain) are the same Transfer Correction, Registration Level and Attenuation Correction Value (Specimen) values initially set up in the DGS/AVG menu. All values can be changed during live inspection as needed.

DGS/AVG InspectionAfter building or recalling a DGS/AVG curve, Warning Curve level adjustments can be made by entering the DGS/AVG Setup menu on the EPOCH 600.

DGS/AVG InspectionDuring inspections, the operator can choose to view a variety of digital measurements based on

the gated indication. Specific measurements for DGS/AVG are:

ERS – Displays the Equivalent Reflector Size (ERS) of the gated indication

% to Curve – Compares theheight of the gated indicationto the DGS/AVG curve inamplitude %

Overshoot – Compares the height of the gated indicationto the DGS/AVG curve ingain (dB)

Custom DGS/AVG Probes

File Import – Using GageView Pro, create a Custom DGS Probe library and save to a CustomProbe.BIN file. Then Import to the EPOCH 600 using the following steps:

– Save the CustomProbe.BIN file to the microSD card

– Insert into the EPOCH 600 and turn the unit ON

– Navigate to the INST SETUP > Misc menu– Highlight the import function shown and

press [P1] to Start the import

DGS/AVG allows the operator to import Custom DGS probes. The GageView Pro PC interface program must be used to create any Custom DGS Probe. Once created, the user can import this Custom Probe library via two methods:

Direct Import – Using GageView Pro, directly connect the EPOCH 600 to the PC and manage custom probes. See the GageView Pro 5.3.5 (or higher) instructional PowerPoint for further information

Software FeatureTemplate Storageformerly Spotweld Overlay

Template StorageTemplate Storage, previously known as Spotweld Overlay, is an optional feature on the EPOCH 600. Since the option is functional for applications other than spotweld inspection it has been given a more general name.

Template Storage- Overview The Template Storage option allows the operator to store reference

templates, or reference echoes similar to Peak Hold, in memory for comparison to the live A-Scan.

The operator can call up a reference template on the live screen at any time by pressing the corresponding P key.

This allows simple comparisons of known conditions to the live A-Scan to assist the operator.

Ordering Information: EP600-TEMPLATE (U8140148)

Template Storage- Option Activation To activate the Template Storage option:

1. In the DAC/TVG menu press [F5] Template


The option is turned ON and OFF using the control here.

The operator can specify if Gain adjustment should be active or not – in many spotweld applications this is restricted.

The list of template names is shown here.

Template Storage- Adding Templates To add a template:

1. In the Template Name Edit field, press [P1] Edit to bring up the virtual keyboard

2. Enter the name of the desired template and press [P2] Add

Template Storage- Adding Templates The list of templates is highly flexible, the user can create as many as

required for the application.

– The EPOCH 600 can store up to a maximum of 20 templates The first five added templates are the primary templates that will appear

above the P-Keys on the live screen.

– Additional templates are accessible through a menu.

Move Up / Down: Moves the highlighted template Up / Down within the list.

Delete: Deletes the highlighted template.

Del All: Deletes all templates.

Template Storage- Editing Templates To edit a template:

1. Select the desired template from the Template Names box

2. In the Template Name Edit field, press [P1] Edit to bring up the virtual keyboard

3. Edit the template name and press [P3] Replace

Template Storage Operation- Gain Adjustment Gain adjustment is a NEW feature in Template Storage which allows for more

flexibility outside of spotweld inspections The GAIN On/Off function allows the user to choose whether live gain

adjustment is possible while the Template Storage option is active. Turning Gain Off disables base

and scanning gain access during inspection, and ensure that every template in the current setup can be compared directly to the live A-scan at a common reference level.

Template Storage Operation- Gain Adjustment Turning Gain On enables SCANNING gain access during inspection. When a

template is saved, the BASE gain is also stored. If the operator recalls a template for comparison, the live A-scan is AUTOMATICALLY scaled to match the stored base gain. This forces a valid reference comparison.

Each template can have a different base gain.

Template Storage Option- Operation On the live screen you will see that the Template Storage controls automatically

appear above the P keys. Some other parameters are still active. If you make an adjustment then the

Template Storage controls will reappear after 5-10 seconds.

Template Storage Option- Operation The first five templates are accessible using the [P1]-[P5] keys. The others are accessible by pressing the [P6] key. See screenshots below:

Template Storage Option- Storing Templates To store a template there are two methods:

1. For the first (5) templates: Press [2nd F] and the corresponding P-key

2. For all templates: Press [P6], highlight the template, press [P1] Store

Once a template has been stored, an “*” symbol will appear below the template name. In the Templates menu, the “*” will display to the right of the template

Saved Templates

Template Storage Option- Activating a Template To activate/load a template:

1. For the first (5) templates: Press the corresponding P-key

2. For all templates: Press [P6], highlight the template, press [P2] Load

For the first (5) templates, once a template has been activated, an “-A-” symbol will appear below the template name

For the remaining templates, the currently active template will appear above [P6] in place of the Templates Menu.

Template Storage Option- Example The following slides show an sample set of stored templates for a

spotweld inspection:– Lower Left: GOOD template stored by pressing [2nd F], [P1].– Lower Right: WELD2 template stored by entering Template Storage

menu, highlighting WELD2, and pressing [P1].

Template Storage Option- Example – To display a template you just press the corresponding P-Key or go

to the Template Storage menu, highlight the desired template, and press [P2] to Load it to the live screen.

– The live A-Scan can be displayed with the template for comparison as in the screenshot on the lower right.

Template Storage Option Additional Information:

– This option can be very useful for spotweld inspection and also for condition monitoring over time.

– As all of UT testing is in some way a comparative test, Template Storage can be used in many different applications to compare known conditions to unknown samples.

– Many users prefer to display the live A-Scan as filled in and the Template (or envelope) as hollow. This can be done in the Display Setup > Display Setup menu.

– When you save an ID with Template Storage active the instrument will save all stored templates with each ID for review.

Software OptionAPI 5UE

API 5UEThe EPOCH 600 includes API 5UE crack sizing software as an optional feature. The EPOCH 600 API 5UE software is intended to aid operators using API Recommended Practice 5UE in the evaluation of crack height sizing during the pipe fabrication process.

API 5UE OverviewThe API Recommended Practice 5UE was developed specifically for OCTG manufacturers to inspect and characterize inner-diameter (ID) cracking in newly fabricated pipe. The API 5UE code uses two crack sizing methods to characterize ID cracking: the Amplitude Comparison Technique (ACT) and the Amplitude-Distance Differential Technique (ADDT). The software developed for the EPOCH series aids in performing the ADDT method, which uses the following formula to determine ID crack size:

di = Amax*(T2-T1)*k

di = imperfection sizeAmax = Maximum amplitude returned from defect area (usually 80%)T1 = 6dB drop point from leading peak of Amax (distance or time)T2 = 6dB drop point from trailing peak of Amax (distance or time)k = a constant calculated from calibration to a reference notch

An inspector utilizing API 5UE must use the formula above to establish a crack height and refer to the API code for rejection or acceptance criteria.

API 5UE SetupThe first step in using the API 5UE crack sizing software is to calibrate the

instrument for the intended material, inspection range and general sensitivity. This includes:


Verification of wedge characteristics, such as Beam Index Point and Refracted Angle



Sensitivity adjustment from reference

API 5UE Setup


API 5UE Option ActivationTo Activate the API 5UE Option:1. In the DAC/TVG menu press [F4]

API5UE


3. Use the adjustment knob, arrow keys, or P-keys to turn the option ON

4. Press [NEXT GROUP] and use the knob or arrows to enter the known height of the calibration reference notch in the Ref. Depth box.


API 5UE Setup- Peak EnvelopeOnce API 5UE is activated, the user must collect data from a reference notch to

calibrate for inspections. This can be done using one of two methods:

Peak Envelope Method:1. Press [PEAK MEM] activate Peak Memory

2. Find the reflection from the calibration notch and use AUTO-80% to bring this indication to 80% FSH

3. Adjust GATE1 so that it surrounds the indication

4. Move the transducer forward and backward over the notch to draw a peak envelope of the echo dynamics of the notch

5. Press [P1] to Collect the Amax, T1 and T2data from the envelope

6. Press [F5] to move from calibration mode to Inspect mode

API 5UE Setup- Point by PointPoint by Point Method:1. Find the reflection from the calibration

notch and use AUTO-80% to bring this indication to 80% FSH

2. Adjust GATE1 so that it surrounds the indication

3. Press [P1] RefAMax to store the AMax point, and press [P1] to confirm

4. Move the transducer forward over the notch until the peak drops to 40% FSH

5. Press [P2] RefT1 to capture the T1 point

API 5UE Setup- Point by PointPoint by Point Method (cont.):6. Move the transducer backward

over the notch until the peak drops rises to 80% and then falls back to 40% FSH

7. Press [P3] RefT2 to capture the T2 point

8. Press the [P5] key to complete the calibration and move to Inspect mode

9. The operator can always us the [P6] key to Clear the current calibration points and start again

API 5UE InspectionOnce API 5UE is calibrated, the user can evaluate a live indication: Find the reflection from an unknown crack

height Use either Peak Memory or the Point by

Point method to collect values for Amax, T1 and T2 from the unknown indication

Note: The operator can size an unknown crack from the same reference gain level as used for calibration, OR by adjusting the peak to 80% FSH before collecting data points

Once the Amax, T1 and T2 data points are collected, the instrument shows the correct di indication height reading as a digital readout

Press [P6] to Clear the current collect points and continue inspecting

Press [P5] Re-Cal at any point to return to calibration mode

Software OptionInterface Gate

Interface Gate Applications The Interface Gate (IF Gate) software option allows the EPOCH 600 to track

the interface echo from a part that is being inspected using an immersion technique or captive water column transducer.

As a part with an irregular front surface moves past a transducer (or vice-versa) in an immersion tank, the water path between the transducer and part will vary.

The IF Gate tracks the echo from the front surface of the part as it moves and continuously positions it at the zero position on the display.

This stabilizes the signal on-screen and allows the operator to see the area of interest – the test piece – rather than the water path.

Ordering Information: EP600-IG (U8140153)

IF Gate Application- Basic Example

This highly simplified example shows a part being inspected in an immersion tank.

The transducer sends soundthrough the water to the part being tested, producing an Interface Echo.

We position the IF Gate over this echo.

The sound travels through the part and reflects back producing a backwall echo.

IF Gate Application- Basic Example Explanation:

– We are not interested in the water path for flaw detection.

– Once the IF Gate has been positioned over the Interface Echo, select GateIFSetup > GIF Run and turn ON

– This will lock the Interface Echo to the zero position on the screen and allow the range to be expanded.

IF Gate Application- Flaw Detection Example The EPOCH 600 is setup for flaw detection

in this example.

– IF Gate tracks the front surface– Gate 1 is the flaw gate– Gate 2 is the backwall monitor

IF Echo

Flaw

BW Echo

The most important measurements are 1-IF for flaw location and 1% for flaw sizing.

2-IF measures total part thickness and 2% measures backwall echo amplitude.

The IF TH measurement measures the water path.

Interface Gate Activation Once the IF Gate option has been licensed, it can be turned ON by

selecting GateIF > Status

Interface Gate Setup The IF Gate can be set up using the GateIF Setup menu

– You can enter a velocity for the IF Gate measurement using [P7] » This is typically the velocity of water for water path measurements

– Once the IF Gate is turned on, Gate 1 will automatically be set up to track the IF Gate

– Gate 2 tracking settings can be accessed in the Gate Setup, [F3] using the [P7] key.

Once the IF Gate has been turned on, it can be accessed from the live screen by pressing the GATES key.

Multiple presses of the GATES key will scroll through the Start, Width, and Level of all active gates. These values can then be adjusted in coarse or fine adjustment using the knob or the navigation pad.

Interface Gate Operation

G1Start.216

G1Width.741

G1Level17%

G2Start.989

G2Width.568

G2Level21%

GIFStart.128

GIFWidth.247

GIFLevel30%

Interface Gate with TVG Interface Gate on the EPOCH 600 is fully compatible with TVG

– Common for true immersion inspection setups– IF Gate must be activated PRIOR to setting TVG– IF Gate can be in RUN or SETUP mode– TVG gain curve will track to IF Gate

To activate TVG, IF Gate must already be turned on

– Select DAC/TVG > DAC/TVG– Press [P7] Setup, and turn TVG Mode ON

Interface Gate with TVG- Setup

Press the ESCAPE key to return to the live screen TVG Mode will automatically be in G1 Setup Select [P5] G1Start to move the gate around the first reference reflector and

adjust the gain to 80% FSH Press [P2] to Add this point Repeat for all reference reflectors to create a TVG Curve

Interface Gate with TVG- Operation

Once the TVG Curve is complete, press [P1] and set the TVG Mode to Inspection

Interface Gate with TVG- Operation

Software OptionBackwall Echo Attenuator

(BEA)

The Backwall Echo Attenuation (BEA) option allows the operator to apply an independent gain level to the A-Scan after the Gate 2 start position.

BEA allows the operator to reduce the amplitude of the backwall echo when high gain levels are being used to find small flaws.

– The high general gain setting makes internal reflectors easy to see and the BEA gain setting allows the operator to observe the peak of the backwall signal for variation.

– Backwall variation could be the result of flaws that scatter sound energy or reflect sound energy away from the transducer.

Suppressing the backwall signal can also enhance detection of defects close to the backwall echo by allowing visibility of the defect and backwall peaks even when the two signals overlap at the baseline.

Backwall Echo Attenuation (BEA) Overview

Backwall Echo Attenuation (BEA) Operation

The Backwall Echo Attenuation (BEA) option is activated using the Gate 2 status selection:

– Gate 2 Status selections: Off, On, BEA

– When BEA is selected, the BEA Gain control appears over [P6]

– BEA Gain defaults to be equivalent to the current Base Gain

Backwall Echo Attenuation (BEA) Operation When BEA is turned ON:

– The operator may adjust the BEA gain independently to suppress the backwall echo.

– Gate 2 Auto XX% may also be used to position the backwall at a reference level (i.e. 80%.)

– Measurements and alarm conditions under Gate 2 are based on the attenuated echo.

Backwall Echo Attenuation (BEA) Example

A typical use of BEA is shown below:

1.Bring defect in Gate1 to 80%

– Note that backwall echo signal is saturated



2.Turn BEA to ON



3.Use Gate2 AUTOXX% to decrease gain in Gate2 region to decrease backwall echo to 80%

Important information regarding BEA is below. Please note that these comments may be different than the operation of other EPOCH instruments:

– When BEA is activated, the Gate 2 start position can be adjusted anywhere on screen, even before Gate 1

– When BEA is activated, the BEA gain region starts at the Gate 2 start position and ends at the Gate 2 end position

– BEA must be positioned manually by the operator in all modes

– BEA is not compatible with DAC, TVG or DGS

– BEA is not compatible with the Interface Gate option

Backwall Echo Attenuation (BEA) Notes

Questions or Comments?

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