910-264-EN Revision G June 2011

EPOCH XTUsers Manual

Olympus NDT, 48 Woerd Avenue, Waltham, MA 02453, USA

2006, 2007, 2010, 2011 Olympus NDT, Inc. All rights reserved. No part of this publication may be reproduced, translated, or distributed without the express written permission of Olympus NDT, Inc.

This document was prepared with particular attention to usage to ensure the accuracy of the information contained therein. It corresponds to the version of the product manufactured prior to the date appearing on the title page. There could, however, be some differences between the manual and the product if the product was modified thereafter.

The information contained in this document is subject to change without notice.

Part number: 910-264-ENRevision GJune 2011

Printed in the United States of America

All brands are trademarks or registered trademarks of their respective owners and third party entities.

910-264-EN, Rev. G, June 2011

Table of Contents

Labels an

ImportanIntendInstrucInstrumRepairSafetySafetyNotes SafetyWarninEMC DWarraTechni

1. Prefa1.1 1.2 1.3 1.4 1.5 1.6 1.7

2. EPOC2.1 2.2 2.3 Table of Contents iii

d Symbols ........................................................................................... 1

t Information Please Read Before Use ..................................... 5ed Use .......................................................................................................................... 5tion Manual ................................................................................................................ 5ent Compatibility ..................................................................................................... 5

and Modification ....................................................................................................... 6 Symbols ....................................................................................................................... 6 Signal Words ............................................................................................................... 7Signal Words ............................................................................................................... 8 ....................................................................................................................................... 8

gs ................................................................................................................................. 8irective Compliance .................................................................................................. 9

nty Information ......................................................................................................... 10cal Support ................................................................................................................ 10

ce .......................................................................................................... 13Product Description .................................................................................................. 13About This Document .............................................................................................. 14Audience .................................................................................................................... 15If You Have Documentation Comments ............................................................... 15Revision History ....................................................................................................... 15Technical Help ........................................................................................................... 16Service or Repair ....................................................................................................... 16

H XT Physical Features .................................................................. 17Transducer Connections .......................................................................................... 17Optional Hardware Input/Output Port ................................................................. 18Pipestand/Handle ..................................................................................................... 18

910-264-EN, Rev. G, June 2011

iv Table o

2.4 Bidirectional Hand Strap ......................................................................................... 192.5 Battery Door and Compartment ............................................................................. 192.6 Computer Connection Compartment .................................................................... 202.7 O-Ring, Gasket, and Membrane Seals .................................................................... 202.8 D-Ring Clips for Chest Harness Use ...................................................................... 212.9 Display Protection ..................................................................................................... 212.10 IP 67 Environmental Rating .................................................................................... 21

3. Oper3.1 3.2 3.3 3.4 3.5 3.6

4. Mana4.1 4.2

4.24.24.2

4.3 4.4

4.44.44.4

4.5 4.6

4.64.64.64.6

4.7 4.74.7

4.8 4.84.84.84.8f Contents

ating the Power Supply ................................................................... 23Using AC Line Power ............................................................................................... 23Using Battery Power ................................................................................................. 24Operating Time for the Battery ............................................................................... 24Replacing the Battery ................................................................................................ 25Charging the Battery ................................................................................................ 25Using C-Cell Alkaline Batteries .............................................................................. 26

ging Basic Operations ..................................................................... 27Powering Up .............................................................................................................. 27The EPOCH XT Keypad ........................................................................................... 27.1 Adjustment Using Enter and Slewing Keys ............................................... 28.2 Direct Access Adjustment Using Parameter and F Keys .......................... 28.3 Direct Entry of Parameter Values ................................................................. 29

Summarizing Keypad Functions ............................................................................ 29Display Arrangement ............................................................................................... 37.1 Full-Screen Display ........................................................................................ 37.2 Split-Screen Display ....................................................................................... 38.3 Display Flags and Markers ........................................................................... 39

Menu Navigation ...................................................................................................... 41Instrument Setup Menu ........................................................................................... 42.1 General Tab ..................................................................................................... 43.2 Editable Parameters (EditPara) Tab ............................................................. 44.3 Status Tab ......................................................................................................... 46.4 Owner Information Tab ................................................................................. 46

Display Setup Menu ................................................................................................. 47.1 Color Tab ......................................................................................................... 48.2 A-scan Tab ....................................................................................................... 49

Measurement Setup Menu ....................................................................................... 53.1 EPOCH XT Measurements ........................................................................... 54.2 Meas Tab .......................................................................................................... 57.3 Gates Tab ......................................................................................................... 59.4 Options Tab ..................................................................................................... 61

910-264-EN, Rev. G, June 2011

5. Adjusting the Pulser/Receiver ................................................................. 635.1 Adjusting the System Sensitivity (Gain) ................................................................ 635.2 Using the AUTOXX% Feature .............................................................................. 645.3 Setting Reference Gain and Scanning Gain .......................................................... 655.4 Pulser Adjustment .................................................................................................... 65

5.4.1 Pulse Repetition Frequency .......................................................................... 665.4.2 Pulser Frequency Selection (Pulse Width) ................................................. 675.4.3 Pulse Energy ................................................................................................... 675.45.4

5.5 5.55.5

5.6

6. Mana6.1 6.2 6.3 6.4

7. Gates7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9

7.97.97.97.97.9

8. Input8.1 8.2 8.3 Table of Contents v

.4 Damping .......................................................................................................... 67

.5 Test Mode ........................................................................................................ 68Receiver Adjustment ................................................................................................ 69.1 Digital Filters .................................................................................................. 69.2 Waveform Rectification ................................................................................. 70

Custom Filter Sets ..................................................................................................... 70

ging Special Waveform Functions ................................................ 71Reject ........................................................................................................................... 71Peak Memory ............................................................................................................. 72Peak Hold ................................................................................................................... 73Display Freeze ........................................................................................................... 74

............................................................................................................. 75Positioning Gates 1 and 2 ......................................................................................... 75Gate Measurement Modes ....................................................................................... 76Taking Thickness Readings ..................................................................................... 76Taking Echo-to-Echo Thickness Readings ............................................................. 76Locating Flaws with an Angle Beam Transducer ................................................ 77Measuring Signal Amplitude .................................................................................. 78Operating in Time-of-Flight Mode ......................................................................... 80Using the Zoom Feature .......................................................................................... 81Gate Alarms ............................................................................................................... 81.1 Threshold Alarms .......................................................................................... 81.2 Minimum-Depth Alarm ................................................................................ 82.3 Minimum Depth Alarm with a Single Gate ............................................... 82.4 Minimum-Depth Alarm with Gate 2 Tracking .......................................... 83.5 Alarm-Condition Storage .............................................................................. 83

and Output Features ....................................................................... 85VGA Output .............................................................................................................. 85Analog Output .......................................................................................................... 86Trigger Input and Output ........................................................................................ 88

910-264-EN, Rev. G, June 2011

vi Table o

9. Calibrating the EPOCH XT ...................................................................... 919.1 Getting Started ........................................................................................................... 929.2 Calibrating with a Straight Beam Transducer ....................................................... 939.3 Calibration with a Delay Line Transducer ............................................................ 979.4 Calibration with a Dual Element Transducer ..................................................... 1019.5 Calibrating with an Angle Beam Transducer ...................................................... 106

9.5.1 Locating the Beam Index Point (BIP) ......................................................... 1079.5.2 Verifying the Refracted Angle (Beta) ......................................................... 1099.59.5

10. Mana10.1 10.2

101010101010

10.3 101010

11. Softw11.1 11.2

111111111111111111111111

11.3 f Contents

.3 Calibrating for Distance .............................................................................. 110

.4 Calibrating for Sensitivity ........................................................................... 114

ging the Instrument Data Logger ............................................... 117Data Logger Storage Capacity .............................................................................. 118Data Logger Menu .................................................................................................. 119.2.1 Creating Data Files ....................................................................................... 119.2.2 Data File Types ............................................................................................. 120.2.3 Opening Data Files ....................................................................................... 137.2.4 Saving to Data Files ...................................................................................... 139.2.5 File Summary and Review .......................................................................... 140.2.6 Recalling Instrument Setups (Calibration) ............................................... 143Reporting .................................................................................................................. 145.3.1 Report Header Setup ................................................................................... 145.3.2 Printing .......................................................................................................... 146.3.3 Instrument Resets ......................................................................................... 149

are Features and Options ............................................................. 151Defining Active/Inactive Options ......................................................................... 151DAC/TVG ................................................................................................................. 153.2.1 Description .................................................................................................... 153.2.2 Option Activation and Reference Correct ................................................ 154.2.3 ASME & ASME-3 DAC/TVG ...................................................................... 155.2.4 ASME-3 DAC Setup Example .................................................................... 156.2.5 Gain Adjustment Options .......................................................................... 161.2.6 Curve Adjustment GainAlso Called DAC Gain or TVG Gain .. 163.2.7 Transfer Correction ...................................................................................... 164.2.8 JIS DAC .......................................................................................................... 165.2.9 20 %80 % DAC Option .............................................................................. 165.2.10 Custom DAC Curves Option ...................................................................... 166.2.11 TVG Table Option ........................................................................................ 169.2.12 TVG Table Setup ........................................................................................... 170DGS/AVG ................................................................................................................. 173

910-264-EN, Rev. G, June 2011

11.3.1 Description .................................................................................................... 17311.3.2 Option Activation ........................................................................................ 17411.3.3 Relative Attenuation Measurement .......................................................... 179

11.4 AWS D1.1/D1.5 ........................................................................................................ 18011.4.1 Overview ....................................................................................................... 18011.4.2 AWS D1.1/D1.5 and the EPOCH XT ......................................................... 18111.4.3 Operating the AWS D1.1/D1.5 Software ................................................... 181

11.5 B-scan ........................................................................................................................ 185111111111111111111111111111111

11.6 1111111111

11.7 111111

Appendi

Appendi

Appendi

AppendiTable of Contents vii

.5.1 Description .................................................................................................... 185

.5.2 Choosing an Encoder and Accessories ..................................................... 186

.5.3 Getting Started .............................................................................................. 187

.5.4 Performing A-Scan Calibration and Setup ............................................... 187

.5.5 Selecting a B-Scan Mode ............................................................................. 188

.5.6 A-Scan Storage Settings .............................................................................. 193

.5.7 Operating the B-Scan Software .................................................................. 193

.5.8 Reviewing Depth and Distance Traveled (DT) Information .................. 195

.5.9 Operating Minimum Depth Alarm ........................................................... 195

.5.10 Operating Scan Speed Alarm ..................................................................... 196

.5.11 Operating Floating Gate and B-Scan ......................................................... 197

.5.12 Operating Echo-to-Echo Detection ............................................................ 199

.5.13 Saving B-Scan Data ...................................................................................... 199

.5.14 Viewing and Recalling Stored B-Scans ..................................................... 200

.5.15 Scan Color Palette ........................................................................................ 200Floating Gate ........................................................................................................... 201.6.1 Description .................................................................................................... 201.6.2 Option Activation ........................................................................................ 201.6.3 Operating in 6 dB Mode ............................................................................ 203.6.4 Operating in 12 dB Mode .......................................................................... 203.6.5 Using Gate Alarms ....................................................................................... 204Advanced Filters ..................................................................................................... 205.7.1 Description .................................................................................................... 205.7.2 Option Activation ........................................................................................ 206.7.3 Filter Setup Example ................................................................................... 208

x A: Cable Assembly ..................................................................... 211

x B: Sound Velocities ..................................................................... 213

x C: Glossary ................................................................................... 217

x D: EPOCH XT EN12668-1 Technical Specifications ............. 227

910-264-EN, Rev. G, June 2011

viii Table

Appendix E: Parts List ................................................................................... 269

Index ................................................................................................................. 273 of Contents

910-264-EN, Rev. G, June 2011

Labels and Symbols

Safetyshownare miLabels and Symbols 1

-related labels and symbols are attached to the instrument at the locations in the following figure and described in Table 1 on page 2. If labels or symbols ssing or illegible, please contact Olympus.

Operation instruction label

Serial number label

910-264-EN, Rev. G, June 2011

2 Labels

Table 1 Content of the rating plate label

Operation instruction label

Serialabel

Contand Symbols

l number

ains:

The WEEE symbol indicates that the product must not be disposed of as unsorted municipal waste, but should be collected separately.

910-264-EN, Rev. G, June 2011

The China RoHS mark indicates the products Environmental Friendly Usage Period (EFUP). The EFUP is defined as the number of years for which listed controlled substances will not leak or chemically deteriorate while in the product. The EFUP for the EPOCH XT Series has been determined to be 15 years. Note: The Environmental Friendly Usage Period (EFUP) is not

Table 1 Content of the rating plate label (continued)Labels and Symbols 3

meant to be interpreted as the period assuring functionality and product performance.

910-264-EN, Rev. G, June 2011

4 Labels and Symbols

910-264-EN, Rev. G, June 2011

Important Information Please Read Before Use

Intended

The EPof indu

Do notparticu

Instructi

This inproduand us

Keep t

Instrume

Only u

ReImportant Information Please Read Before Use 5

Use

OCH XT instrument has been designed to perform nondestructive inspections strial and commercial materials.

use the EPOCH XT instrument for any purpose other than its intended use, larly for the inspection or examination of human or animal body parts.

on Manual

struction manual contains essential information on using this Olympus ct safely and effectively. Before use, thoroughly review this instruction manual e the product as instructed.

his instruction manual in a safe, accessible location.

nt Compatibility

se the EPOCH XT instrument with the following ancillary equipment:

chargeable lithium-ion (Li-ion) battery pack (PN: EPXT-BAT-L)

910-264-EN, Rev. G, June 2011

6 Import

Optional standalone external battery charger (PN: EPXT-EC) Charger/adaptor (PN: EP-MCA) Handheld portable scanner with an internal encoder (EP4/ENC)

Using incompatible equipment can result in a malfunction and/or in equipment damag

Repair a

The EP

Do notinjury

Safety S

The fomanua

Thfolant Information Please Read Before Use

e.

nd Modification

OCH XT instrument does not contain any user-serviceable parts.

disassemble, modify, or attempt to repair the instrument to prevent human and/or equipment damage.

ymbols

llowing safety symbols may appear on the instrument and in the instruction l:

General warning symbol:is symbol is used to alert the user to potential hazards. All safety messages that low this symbol shall be obeyed to avoid possible harm.

910-264-EN, Rev. G, June 2011

High voltage warning symbol:This symbol is used to alert the user to potential electric shock hazards higher than 1,000 volts. All safety messages that follow this symbol shall be obeyed to avoid possible harm.

Safety Signal Words

The fo

The DAattentiadhereDANGE

The WattentiadhereWARNI

The CAattentiperfordamagdata. Dfully uImportant Information Please Read Before Use 7

llowing safety symbols may appear in the documentation of the instrument:

NGER signal word indicates an imminently hazardous situation. It calls on to a procedure, practice, or the like, which, if not correctly performed or d to, could result in death or serious personal injury. Do not proceed beyond a R signal word until the indicated conditions are fully understood and met.

ARNING signal word indicates a potentially hazardous situation. It calls on to a procedure, practice, or the like, which, if not correctly performed or d to, could result in death or serious personal injury. Do not proceed beyond a NG signal word until the indicated conditions are fully understood and met.

UTION signal word indicates a potentially hazardous situation. It calls on to an operating procedure, practice, or the like, which, if not correctly med or adhered to, could result in minor or moderate personal injury, material e, particularly to the product, destruction of part or all of the product, or loss of o not proceed beyond a CAUTION signal word until the indicated conditions are

nderstood and met.

910-264-EN, Rev. G, June 2011

8 Import

Notes Signal Words

The following safety symbols may appear in the documentation of the instrument:

The IMinform

The Nthat rethat is

The TItechniprovid

Safety

Beforehave bon theBefore

Warning

Caon

Ke Foant Information Please Read Before Use

PORTANT signal word calls attention to a note that provides important ation or information essential to the completion of a task.

OTE signal word calls attention to an operating procedure, practice, or the like quires special attention. A note also denotes related, parenthetical information useful but not imperative.

P signal word calls attention to a type of note that helps you apply the ques and procedures described in the manual to your specific needs, or that es hints on how to use effectively the capabilities of the product.

applying power to the EPOCH XT, verify that the correct safety precautions een taken (see the following warnings.) In addition, note the external markings instrument that are described in the Important Information Please Read Use section.

s

General Warningsrefully read the instructions contained in the users manual prior to powering the instrument.ep the users manual in a safe place for further reference.llow the installation and operation procedures.

910-264-EN, Rev. G, June 2011

It is imperative to respect the safety warnings on the instrument and in the users manual.

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment could be impaired.

Do not install substitute parts or perform any unauthorized modification to the instrument.

Service instructions, when applicable, are for trained service personnel. To avoid a dFoau

BeterThprco

Wth

Thtyp

EMC Dire

FCC (UThis eqdigitalprovidoperatradiateinstrucOperainterfeexpensImportant Information Please Read Before Use 9

angerous electric shock, do not perform any service unless qualified to do so. r any problem or question regarding this apparatus, contact Olympus or an thorized Olympus representative.

fore powering on the instrument, you must connect the protective earth minal of the instrument to the protective conductor of the (mains) power cord. e mains plug shall only be inserted in a socket outlet provided with a otective earth contact. Never negate the protective action by using an extension rd (power cable) without a protective conductor (grounding.)henever it is likely that the ground protection is impaired, you must power off e instrument and secure it against any unintended operation.e instrument must be connected only to a power source corresponding to the e indicated on the rating plate.

ctive Compliance

SA) Complianceuipment has been tested and found to comply with the limits for a Class A

device, pursuant to Part 15 of the FCC Rules. These limits are designed to e reasonable protection against harmful interference when the equipment is ed in a commercial environment. This equipment generates, uses, and can radio frequency energy and, if not installed and used in accordance with the tion manual, may cause harmful interference to radio communications.

tion of this equipment in a residential area is likely to cause harmful rence in which case you will be required to correct the interference at your own e.

910-264-EN, Rev. G, June 2011

10 Impor

ICES-001 (Canada) ComplianceThis Class A digital apparatus complies with Canadian ICES-001.

Cet appareil numrique de la classe A est conforme la norme NMB-001 du Canada.

Warranty Information

Olympworkmcondit

The Olas descattemp

Inspecthat mimmedshipmorder tassista

This inprodushall nverificprocedthis reexampthat th

Olymprespon

Technica

Olympprodufails totant Information Please Read Before Use

us guarantees your Olympus product to be free from defects in materials and anship for a period and conditions specified in the Olympus terms and

ions, available at http://www.olympus-ims.com/en/terms/.

ympus warranty only covers equipment that has been used in a proper manner ribed in this instruction manual and has not been subjected to excessive abuse, ted unauthorized repair, or modification.

t materials thoroughly on reception for evidence of external or internal damage ight have occurred during shipment. Notify the carrier making the delivery iately of any damage, since the carrier is normally liable for damage in

ent. Preserve packing materials, waybills, and other shipping documentation in o establish a damage claim. After notifying the carrier, contact Olympus for nce with the damage claim and equipment replacement, if necessary.

struction manual attempts to teach the proper operation of your Olympus ct. The information contained herein is intended solely as a teaching aid and ot be used in any particular application without independent testing and/or ation by the operator or the supervisor. Such independent verification of ures becomes more important as the criticality of the application increases. For

ason, Olympus makes no warranty, expressed or implied, that the techniques, les, or procedures described herein are consistent with industry standards nor ey meet the requirements of any particular application.

us reserves the right to modify all products without incurring the sibility for modifying previously manufactured products.

l Support

us is firmly committed to providing the highest level of customer service and ct support. If you experience any difficulties when using our product, or if it operate as described in the documentation, first consult the users manual, and

910-264-EN, Rev. G, June 2011

then, if you are still in need of assistance, contact our After-Sales Service. The list of Olympus After-Sales Service centers is available at http://www.olympus-ims.com/en/service-and-support/service-centers/.Important Information Please Read Before Use 11

910-264-EN, Rev. G, June 2011

12 Important Information Please Read Before Use

910-264-EN, Rev. G, June 2011

1. Preface

The pr

Pr Ab Au If Re Te Se

1.1 Pr

The EPdetectosuperiinterfadetectioperatEnhan

Ca Co Hi

coanpoPreface 13

eface contains the following introductory topics:

oduct Descriptionout This Documentdience

You Have Documentation Commentsvision Historychnical Helprvice or Repair

oduct Description

OCH XT is a high-performance, lightweight, and portable ultrasonic flaw r. This detector offers excellent ultrasonic performance, large dynamic range,

or measurement resolution, a color-liquid crystal display, and an all-new user ce. The EPOCH XT sets a new performance benchmark for portable flaw on and is a new instrument offering many performance, durability, and ional enhancements when compared to previous EPOCH flaw detectors. cements include:

se sealed to IP67 to assure environmental durability.mplies with EN12668-1.gh Performance PerfectSquare Pulser Technology The instrument electronics ntrol both the leading and trailing edges of the pulse for precise width control d excellent near-surface resolution while maintaining the superior penetration wer expected with a square wave pulser.

910-264-EN, Rev. G, June 2011

14 Chapt

A 100 % digital, high dynamic-range receiver design with unprecedented TVG performance.

Digital filters: Broadband, Narrowband, and High-pass filters for application flexibility.

Five customizable measurement-display locations for time and amplitude measurements from either Gate 1 or Gate 2.

New rapid parameter adjustment methods maximizing effectiveness of operator inp

Laus

US US Op

co

We sugEPOCwith thflaw d

1.2 Ab

This droutin

Op M Ad M Us Ca M User 1

uts.rge data logger for instrument setups and inspection data. Allows operator to e corrosion thickness-gage file types.B client port for high-speed data transfer to a PC.B host port for printing and for USB drive storage.tional hardware I/O port for alarm outputs, trigger in/out, and encoder

mpatibility.

gest reading through the information completely at least once with your H XT in hand so that you can combine reading the descriptions and examples e actual use of the instrument. The technical specification for the EPOCH XT

etector is available at: http://www.olympus-ims.com.

out This Document

ocument is the Users Manual for the EPOCH XT. This manual describes e tasks for operating the EPOCH XT. These tasks include:

erating the power supplyanaging basic operationsjusting the pulser receiver

anaging special waveform functionsing the gateslibrating the EPOCH XT

anaging the data logger and data communication featuresing software options

910-264-EN, Rev. G, June 2011

1.3 Audience

This document is intended for any operator using the EPOCH XT. Olympus recommends that all operators have a thorough understanding of the principles and limitations of ultrasonic testing. We assume no responsibility for incorrect operational procedure or interpretation of test results. We recommend that all operators seek appropriate training prior to using this equipment. Olympus offers a full range of traininDetectregard

While determservice

1.4 If

Olympcomm

Compcomm

Se Co In

nu

1.5 Re

This dproduadditio

The foPreface 15

g courses including Level I and Level II Ultrasonic Testing, Advanced ion and Sizing, and Ultrasonic Thickness Gaging. For further information ing training courses, contact Olympus.

the EPOCH XT is a continuously self-calibrating instrument, you must ine regulatory requirements. Olympus offers calibration and documentation s. Contact Olympus or your local representative with any special requests.

You Have Documentation Comments

us is always interested in improving its documentation. We value your ents regarding this manual and other Olympus documentation.

lete the survey at the back of this manual and send your documentation ents to Olympus by using one of the following methods:

nd comments to Olympus. Attention: Technical Publicationsntact us at: info@Olympus-ims.com.

all your correspondence, please include the title of the document, its part mber, release date, and the specific section upon which you are commenting.

vision History

ocument might require updating because of corrections or changes to the ct. Publication dates are updated when a change is made to the document. In n, the document number is also changed to reflect the revision.

llowing table shows a list of revisions for this document.

910-264-EN, Rev. G, June 2011

16 Chapt

1.6 Te

For tecfull co

1.7 Se

For cal

Table 1 Revision history

Date Issue Release version

August 2006 910-264A-EN First release

October 2006 910-264B-EN Update

Janu

Febr

Febr

Juneer 1

chnical Help

hnical assistance, please contact Olympus. A list of our service locations with ntact information is available online at: http://www.olympus-ims.com/.

rvice or Repair

ibration and repair status, call 877-225-8380.

ary 2007 910-264C-EN Update

uary 2007 910-264D-EN Update

uary 2010 910-264-EN Revision F

2011 910-264-EN Revision G

910-264-EN, Rev. G, June 2011

2. EPOCH XT Physical Features

The EPimprooperat

This se

Tr Op Pip Bi Ba Co O- D- Di IP

2.1 Tr

The EPThe tynecesssmall c

While preferenot eqEPOCH XT Physical Features 17

OCH XT has many physical features that are either completely new or ved compared to previous EPOCH flaw detectors. It is important for the or to be familiar with the use and maintenance of these items.

ction covers the following topics:

ansducer Connectionstional Hardware Input/Output Portestand/Handle

directional Hand Strapttery Door and Compartmentmputer Connection CompartmentRing, Gasket, and Membrane SealsRing Clips for Chest Harness Usesplay Protection67 Environmental Rating

ansducer Connections

OCH XT is supplied with either BNC or large LEMO transducer connectors. pe of transducer connector is chosen when the instrument is ordered. If ary, it is possible to change the type of transducer connection at the factory for a harge.

the selection of transducer connector is typically based on the operators nce, it is important to note that the performance of these two connector types is

ual. The environmental durability of the EPOCH XT depends in part on the

910-264-EN, Rev. G, June 2011

18 Chapt

connector style chosen because the BNC connectors are sealed and the large LEMO connectors are not. The EPOCH XTs IP 67 environmental rating is applicable to instruments with BNC connectors only. Instruments with large LEMO connectors have not been certified to any IP environmental rating.

2.2 Optional Hardware Input/Output Port

EPOCinput/follow

B- Al

pa Tr

This Lcap is the conOlympEPOC

2.3 Pi

The EPcompapipestthe popipest

The pithe loccan slithem wharneser 2

H XT instruments are available with an optional 16-pin LEMO hardware output (I/O) port next to the transducer connections. This port serves the ing functions:

scan for details see section 11.5 on page 185arm Outputs for details see section 7.9 on page 81 and Appendix A: on ge 211igger In/Out for details see section 8.3 on page 88

EMO connection is sealed to an IP 67 environmental rating when the supplied in place (and in good condition) or when the mating connector is plugged in. If nector is left open then it is not sealed and liquids might enter the instrument. us offers an EPOCH XT hardware I/O cable as an accessory with the

H XT with part numbers EPXT-C-16HW-6 (6 ft.) and EPXT-C-16HW-20 (20 ft.).

pestand/Handle

OCH XT has a new pipestand/handle design chosen for its light-weight, ct design, durability, and ease of adjustment. To adjust the position of the and/handle, the ball-detent mechanisms that locate the pipestand/handle allow sition to be adjusted simply by pulling on the lower part of the and/handle.

pestand/handle is removable. This requires a 0.5 in. Crescent wrench to remove ator pins on both sides of the instrument. Once these have been removed, you de the pipestand/handle out of the ball-detent mechanisms and then replace

ith the locator pins. This arrangement allows to use the D-rings for a chest s and removes the weight of the pipestand/handle.

910-264-EN, Rev. G, June 2011

2.4 Bidirectional Hand Strap

The EPOCH XT has been designed with a bidirectional hand strap so that the instrument can be held in the operators left or right hand. There are three mounting points for the hand strap on the instrument: left, right, and bottom-center. The bottom-center point should not need to be adjusted except for the removal or replacement of the hand strap.

To reverse

1. Pean

2. Pe3. Re

rem4. Ge

an5. Pu

pindi

6. Pe7. Ad

an8. At

lea

2.5 Ba

The EPwithou(on thebuttonis impright sEPOCH XT Physical Features 19

the hand strap

el back the outer leather area that is held with Velcro to the adjustment strap d the center leather section.el the adjustment strap upward to remove it from the center leather section.place the outer leather section now that the adjustment strap has been

oved.ntly pull the adjustment strap downward to remove it from between the pin d the body of the instrument.ll the adjustment strap under the instrument and around to the opposite-side and place it between the pin and body of the instrument in the upward

rection.el back the outer leather area (formerly the inner leather area).just the hand strap to a comfortable position by pulling the adjustment strap

d sliding the leather section.tach the adjustment strap to the center leather section and close the other ther section over the adjustment strap.

ttery Door and Compartment

OCH XT battery door allows you to quickly access the battery compartment t the need for tools. There are two quick-release buttons on the battery door left when looking at the back of the instrument). To open the door, these s must be pressed fully and released, then the door can be slid out to the left. It ortant to do this carefully to avoid damaging the four plastic tabs that hold the ide of the door in place.

910-264-EN, Rev. G, June 2011

20 Chapt

When returning the battery door to its place, these steps are reversed. It is important to slide the door all the way to the left before attempting to re-engage the quick release connectors. You must also take care to keep the battery door seal in place or the instruments environmental seal could be damaged causing malfunctions.

The battery door also has a small hole that is covered on the inside by an environmentally sealed membrane vent. This vent is a safety feature that is required in the event that the instrument battery fails and emits gas. There is also a sticker on the ouThis vseal.

The EPmetal help h

2.6 Co

On theinstrumliquidsthe AC

The coalso us

2.7 O-

The EPhardw

Ba Co M Th Th Ther 2

tside of the battery door explaining that this location contains a membrane vent. ent must not be punctured because it is part of the instruments environmental

OCH XT has been designed to accept three battery types: lithium ion, nickel hydride, or alkaline C-Cells. The instrument is supplied with a foam block to old C-Cell type batteries in place, but this is not required for their use.

mputer Connection Compartment

lower-right side of the EPOCH XT there is a door that covers all of the ents office-type connections. The door has an integral O-ring seal to keep

away from the unsealed connections behind the door. These connections are adaptor input, USB client port, and USB host port.

mputer connection compartment is held in place by two thumb screws. You can e a hexagonal wrench to manipulate these thumb screws as needed.

Ring, Gasket, and Membrane Seals

OCH XT contains seals that are used to protect the instruments internal are from the environment. These include:

ttery door sealmputer connection compartment seal

embrane vente main O-ring seal between the top and bottom halves of the casee O-ring seal under the transducer connector platee gaskets located in the transducer connector plate assembly

910-264-EN, Rev. G, June 2011

These seals must be maintained to assure environmental durability. Instrument seals are evaluated and replaced as needed during the instruments annual calibration. This should be performed by an authorized Olympus service center.

2.8 D-Ring Clips for Chest Harness Use

The EPOCH XT has four D-ring clips that can be used as mounting points for a chest harnestheir inyou mexpect

The D-penetr

2.9 Di

All EPprotecsheet iEPXT-

The diinstrumdamaginstrum

Olympplasticinform

2.10 IP

The EPand duthe insincludthe insEPOCH XT Physical Features 21

s. These D-ring clips have been mounted at ruggedized locations to ensure tegrity and prevent instrument damage. If a chest harness is being used, then

ust use all four points to support the weight of the instrument. You must not that two D-rings can reliably support the instrument.

rings can be removed if they are not required. The mounting points do not ate the instrument case, so the instruments seal rests intact without the D-rings.

splay Protection

OCH XT gages are shipped from the factory with a clear plastic sheet ting the instrument display window. It is advised that the operator leave this n place. Replacements are available in packages of ten with part number DP.

splay window in the EPOCH XT is permanently bonded to the upper half of the ent case to fully seal the instrument. If the display window becomes

ed, the entire upper half of the case must be replaced along with the ent keypad.

us also offers a rubber protective case with an integrated (and replaceable) display shield. Contact Olympus or your local representative for more ation.

67 Environmental Rating

OCH XT has been designed to provide customers with an extremely rugged rable instrument that can be used in harsh environments. In order to classify truments durability in wet or damp environments, many manufacturers, ing Olympus, have adopted the IP (Ingress Protection) system to rate how well trument is sealed.

910-264-EN, Rev. G, June 2011

22 Chapt

The EPOCH XT has been tested to the requirements of IP 67 environmental rating. All instruments ordered with BNC transducer connectors are designed to meet this level of ingress protection when they leave the factory. In order to maintain this level of protection, the operator is responsible for the proper care of all routinely exposed seals, O-rings, membranes, etc. (discussed in section 2.7 on page 20). Additionally, you are responsible for returning the instrument to an authorized Olympus service center each year to ensure that the instrument seals are properly maintained. Olympus cannot guarantee any level of ingress protection performance once the instrumproperer 2

ent seals have been manipulated. You must use sound judgment and take precautions before exposing the instrument to harsh environments.

910-264-EN, Rev. G, June 2011

3. Operating the Power Supply

This chdiffere

Us Us Op Re Ch Us

3.1 Us

AC linThe EPfrom 1freque

To use AC

1. CopoOperating the Power Supply 23

apter contains sections describing how to operate the EPOCH XT using nt power supply options. The topics are as follows:

ing AC Line Powering Battery Powererating Time for the Batteryplacing the Batteryarging the Batterying C-Cell Alkaline Batteries

ing AC Line Power

e power is supplied by means of the charger/adaptor (part number EP-MCA). -MCA has a universal AC power input, so it operates with any line voltage 00 VAC to 120 VAC or 200 VAC to 240 VAC and with 50 Hz to 60 Hz line ncy.

line power

nnect the power cord to the charger/adaptor unit and to an appropriate line wer source.

910-264-EN, Rev. G, June 2011

24 Chapt

Use only the AC power cord supplied with the EPOCH XT. Do not use this AC power cord with other products.

2. Open the sealed Computer connection compartment on the right side of the EP

3. Coad

4. Tu5. Pr

3.2 Us

The EPhydridinstrummodifi

The badisplabatteryequals

3.3 Op

Batterybatterytimes, energy50 % (d

Li Ni C-er 3

OCH XT.nnect the DC output power cable from the charger/adaptor to the charger/AC aptor input jack inside the door (top connection).rn on the EPOCH XT using the keypad.oceed with normal operation.

ing Battery Power

OCH XT is offered with the choice of lithium-ion (Li-ion) or nickel metal e (NiMH) batteries. Alkaline C-Cell batteries can also be used. All EPOCH XT ents have been designed to accept these three battery types without any

cations or adjustments.

ttery-life symbol is always present at the upper-right corner of the instrument y. The battery indicator contains five bars to communicate the remaining life. Each bar represents 20 % of life remaining: 5 bars equals 100 %, 4 bars

80 %, and so on. The battery indicator is accurate after 5 to 10 minutes of use.

erating Time for the Battery

operating time depends on the type of battery being used, the age of the , and the instrument settings. In order to provide realistic battery operating we have tested the EPOCH XT with mid-level operating parameters: pulse 200 V, pulse frequency (width) 5.00 MHz, PRF 500 Hz, and display brightness efault setting). The nominal battery operating times for new batteries are:

-ion: 910 hoursMH: 45 hoursCell: 12 hours

910-264-EN, Rev. G, June 2011

It might take several cycles of complete charging and discharging of the battery to bring the battery to full capacity. This conditioning process is normal for these types of rechargeable batteries.

3.4 Re

The EPnot attinjury.perma

To repmanuabatteryinstrum

To insewith thThe baon pag

3.5 Ch

The EPor exteEPXT-

To chacompainstrumOperating the Power Supply 25

placing the Battery

OCH XT charger/adaptor is designed to charge EPOCH XT batteries only. Do empt to charge any other batteries. Doing so might cause an explosion and

Do not attempt to charge other electronic equipment. This will cause nent damage.

lace the EPOCH XT battery, follow the steps in section 2.5 on page 19 of this l. Be careful to avoid any damage to the door seal or membrane vent. The should be removed by pulling the top of the battery away from the ent.

rt a new battery, put the top of the battery in first to assure proper connection e instrument and then drop the bottom of the battery into the compartment. ttery door should be returned to its place with care as described in section 2.5 e 19.

arging the Battery

OCH XT battery can be charged internally using the EP-MCA charger/adaptor rnally using the optional standalone battery charger with part number EC.

rge the battery internally, you must open the computer connection rtment and plug in the EP-MCA charger/adaptor. The battery charges when the

ent is ON or OFF, but the charge rate is slower when the instrument is ON.

910-264-EN, Rev. G, June 2011

26 Chapt

When the EPOCH XT is connected to AC power and powered ON, the battery indicator displays a lightning bolt symbol instead of the standard indicator with 5 bars showing the remaining battery life.

You can also choose to use the external battery charger, EPXT-EC, to charge one battery, while using another in the instrument. For more information regarding this external charger, contact Olympus or your local sales representative.

If the battery is used daily (or frequently), connect it to the charger/adaptor when not in use.chargeThe bamainte

Rechardescrib

Never

Store bor in orechar

3.6 Us

EPOCinside batteri

The EPbatterifor C-C

The EPNo speAlkalier 3

Whenever possible, the battery should remain connected to the EP-MCA r/adaptor (overnight or over a weekend), so that it achieves 100 % full charge. ttery must reach full charge on a regular basis for proper capacity and cycle-life nance.

ge discharged batteries as soon as possible after use. Give a full recharge, as ed above.

place discharged batteries in storage without a full recharge.

atteries in a cool and dry environment. Avoid long-term storage under sunlight ther excessively hot places such as an automobile trunk. While in storage, fully ge batteries at least once every two (2) months.

ing C-Cell Alkaline Batteries

H XT instruments are shipped with the positive and negative contact points the battery compartment for housing standard alkaline C-Cell batteries. These es cannot be recharged using the EP-MCA charger/adaptor.

OCH XT also ships with a foam block that can be inserted to hold C-Cell es in place when the battery door is removed. This foam block is not required ell battery use.

OCH XT automatically recognizes that alkaline C-Cell batteries are being used. cial settings or adjustments are required. When the EPOCH XT is using

ne C-Cells, the symbol ALK appears in the place of the battery meter-level icon.

910-264-EN, Rev. G, June 2011

4. Managing Basic Operations

This chare as

Po Th Su Di M In Di M

4.1 Po

Pressinappearand th

4.2 Th

The keMost mcorrespManaging Basic Operations 27

apter describes how to get started with the basic EPOCH XT operation. Topics follows:

wering Upe EPOCH XT Keypadmmarizing Keypad Functionssplay Arrangementenu Navigationstrument Setup Menusplay Setup Menueasurement Setup Menu

wering Up

g the [ON/OFF] key causes an initial beep. The instruments startup screen s. The instrument then goes through a series of self-tests for 45 to 60 seconds en starts up.

e EPOCH XT Keypad

ypad functions have been grouped and color-coded according to function. ajor instrument setup parameters can be accessed by pressing the onding key or by pressing [2ND F] and the corresponding key.

910-264-EN, Rev. G, June 2011

28 Chapt

The most commonly used keys on the keypad ([GAIN], [FREEZE], [SAVE], [ENTER], [MEAS/RESET], and the arrows) are located in a group next to the operators left thumb. This arrangement is similar to the EPOCH 4 series and EPOCH LT.

The keys on the right side of the keypad that are surrounded by the gray line, are used for access to their setup parameters as labeled and also as an alphanumeric keypad.

The top row of keys are the [F1] through [F5] software function keys used for direct access to various parameter settings.

There EPOC

Ad Di Di

4.2.1These screencycles setup p

Each skeys. Fup prorapid a

4.2.2Most cpositioparaminstrumadjust using functioer 4

are three methods for adjusting the instrument setup parameters in the H XT:

justment using the [ENTER] and slewing keysrect access adjustment using the parameter keys and F keysrect entry of parameter values

Adjustment Using Enter and Slewing Keyskeys can be used to control all instrument functions that appear on the main . The [ENTER] key toggles from one setup parameter to the next and then through them again. By pressing [2ND F] then [ENTER], you can go back one arameter.

etup parameter can be adjusted with the left and right or down and up arrow or most parameters, left and right provide a fine adjustment and the down and vide a coarse adjustment. This new feature has been developed to allow a more djustment of parameters.

Direct Access Adjustment Using Parameter and F Keysommonly used parameters have their own assigned key or a second function n on the instrument keypad. These keys are a direct access to the given eter. This method allows operators to quickly locate and activate a given

ent function for adjustment. Once a parameter has been selected, you can its value using the slewing keys as described in section 4.2.1 on page 28 or by the preset function [F1][F5] keys on the top of the instrument keypad. The n keys appearing below preset the values used for the selected parameter.

910-264-EN, Rev. G, June 2011

4.2.3 Direct Entry of Parameter ValuesThe EPOCH XT rapid parameter adjustment method is called direct entry. This method should be used when you know the exact value to use for a selected parameter. To execute a direct entry of a value, press the appropriate parameter key, press the [ALPHA/NUM] key, enter the parameter value on the instruments alphanumeric keys, and then press [ENTER].

To set the i

1. Pr2. Pr3. Ty4. Pr

4.3 Su

The EPEnglisavailabcolor penviroManaging Basic Operations 29

nstrument range to 650 mm (an example)

ess the [RANGE] key.ess the [ALPHA/NUM] key.pe 6,5,0 on the alphanumeric keypad.ess [ENTER].

mmarizing Keypad Functions

OCH XT is available with five different keypads. The most common are the h keypad and the international keypad. Chinese and Japanese versions are also le. The white keypad is the same as the English keypad but with a different alette. It was designed to reduce internal unit temperature in extremely hot nments.

910-264-EN, Rev. G, June 2011

30 Chapter 4

Figure 4-1 The EPOCH XT English keypad

910-264-EN, Rev. G, June 2011

EnManaging Basic Operations 31

Figure 4-2 The EPOCH XT international keypad

Table 2 Keys

glish Intl Color Function

BLUE Adjusts system sensitivity.

910-264-EN, Rev. G, June 2011

32 Chapt

BLUE Locks reference gain level and allows scanning gain to be used.

Table 2 Keys (continued)

English Intl Color Functioner 4

GRAY Accesses instrument setup menu to control operator preferences, local settings, clock, startup screen setup, and provides instrument status information.

GRAY Accesses setup area for measurement boxes, gate setup, and software option setup.

GRAY Accesses setup menu for the instrument display and A-scan appearance.

GRAY Toggles between full-screen display mode and split-screen display mode.

910-264-EN, Rev. G, June 2011

BLUE Display freeze holds the displayed waveform until [FREEZE] is pressed again.

Table 2 Keys (continued)

English Intl Color FunctionManaging Basic Operations 33

PURPLE Saves instrument measurements, setup parameters, and A-scans to selected file and ID.

PURPLE [MEAS/RESET] is a general purpose key to get back to the live measurement screen. Can be used to escape from menus and to accept parameter adjustments.

PURPLE [ENTER] moves from one parameter to the next and also accepts parameter adjustments.

RED [GATES] allows you to control both instrument gates on screen.

RED [2ND F], [GATES] (ALARMS) activates threshold or min. depth alarms for both instrument gates.

ORANGE [PULSER] toggles through pulser parameters.

910-264-EN, Rev. G, June 2011

34 Chapt

ORANGE [RCVR] toggles through receiver parameters.

Table 2 Keys (continued)

English Intl Color Functioner 4

RED [PEAK MEM] allows to continuously accumulate peak envelope data with the live waveform.

RED (PEAK HOLD) Allows to capture the A-scan while viewing live waveform on top of the captured A-scan.

YELLOW [CAL] initiates the EPOCH XT auto-calibration feature.

YELLOW [ZERO] adjusts the instruments calibrated zero position.

YELLOW (ZOOM) zooms in to Gate 1 Width.

910-264-EN, Rev. G, June 2011

YELLOW Adjusts the instruments material sound velocity.

Table 2 Keys (continued)

English Intl Color FunctionManaging Basic Operations 35

YELLOW Displays linear reject

YELLOW Adjusts the instruments range according to the sound velocity setting.

YELLOW Display delay that does not affect the calibrated Zero Offset.

YELLOW Adjustment for refracted angle within the test material. Used for the angle beam sound path calculator.

910-264-EN, Rev. G, June 2011

36 Chapt

YELLOW Adjusts part thickness settings. Used for the angle beam sound path calculator.

Table 2 Keys (continued)

English Intl Color Functioner 4

BLUE With [ID] you can manually enter or adjust an ID within the currently active file.

BLUE Accesses the instruments data logger.

BLUE [ALPHA/NUM] begins direct entry of parameter values on the live screen.

BLUE Print function allows to print directly to compatible USB printers (PCL5).

910-264-EN, Rev. G, June 2011

4.4 Display Arrangement

The EPOCH XT main screen can be displayed in two different modes: split-screen and full-screen A-scan views. The split-screen display simultaneously shows the live A-scan, measurements, and all instrument setup parameters. The full-screen A-scan display shows a large A-scan, measurements, and the active setup parameter (based on the operators selection).

When split-sc

To swi[DISP

4.4.1The fuuser-sesetting

Top of

Managing Basic Operations 37

the EPOCH XT is powered on and has completed its self test procedure, the reen view opens to allow you to review the setup parameters.

tch between the split-screen and full-screen A-scan displays, press [2ND F], then LAY SETUP].

Full-Screen Displayll-screen A-scan display presents a large, high-resolution A-scan, up to five lected measurements, time base information, the gain setting, the velocity , and the active parameter, as selected by the operator.

the screen

The filename, ID, measurements, battery indicator, and units (metric, US or Imperial, s) are constantly displayed.

910-264-EN, Rev. G, June 2011

38 Chapt

The measurement boxes are customized by you, the operator. Each of the measurement locations (up to 5) displays a symbol that lets you know what type of measurement is being displayed.

Middle of the screen

The A-scan waveform is displayed. A grid is typically displayed behind the A-scan. You can choose between

Bottom

4.4.2 SThe spsetup pas it enviewiner 4

several grid modes based on application needs and/or preference.Gate measurement icons are displayed on the right side of the screen. These icons tell you the measurement mode for each gate and also flash when an alarm is triggered.On the right side of the display and below the gate measurement icons, the instrument displays flags and markers that notify you when options are active, when [FREEZE] is active, and other such conditions.

of the screen

Delay (Dly) and Range (Rng) always appear under the A-scan. These tell you where in time the display window begins and ends.Gain (Ref) and Velocity (Vel) are always displayed.The active function (if not Dly, Rng, Gain, or Vel) is displayed.Preset values for the selected instrument parameter are displayed on the bottom of the screen.

plit-Screen Displaylit-screen display presents a condensed waveform along with all instrument arameters. This screen is useful when establishing the initial instrument setup ables a quick check of all setup information and allows to rapidly adjust while g the live A-scan.

910-264-EN, Rev. G, June 2011

The inleft coland careceiveare dis

4.4.3To indof flagflags aManaging Basic Operations 39

strument setup parameters have been arranged into three main columns. The umn contains calibration settings. The center column contains pulser settings n be directly accessed using the [PULSER] key. The right column contains r information and can be directly accessed using the [RCVR] key. Gate settings played below these three columns of setup parameters.

Display Flags and Markersicate when particular display functions are active, the EPOCH XT displays a set s, or markers, to the right of the A-scan display. Table 3 on page 39 shows these nd provides a description of each.

Table 3 Display flags and markers

Flag Description

This indicates that the [2ND F] key has been pressed.

Gate 1 is in Peak Measurement mode.

910-264-EN, Rev. G, June 2011

40 Chapt

Gate 2 is in Peak Measurement mode.

Gate 1 is in Edge (or Flank) Measurement mode.

Table 3 Display flags and markers (continued)

Flag Descriptioner 4

Gate 2 is in Edge (or Flank) Measurement mode.

Gate 1 is in First Peak Measurement mode.

Gate 2 is in First Peak Measurement mode.

[PEAK MEM] is active.

[2ND F] [PEAK MEM] Peak Hold (Ref Echo) is active.

Display [FREEZE] is active.

The Recall Freeze is active. Press [MEAS/RESET] to deactivate.

(ZOOM) is active.

The gate alarm has been triggered. Flashes on and off alternating with gate measurement indicator.

910-264-EN, Rev. G, June 2011

4.5 M

The thto impnavigakeys. Tand pa

Tabs enter aand righighlig

DAC/TVG is active.

DGS/AVG is active.

Table 3 Display flags and markers (continued)

Flag DescriptionManaging Basic Operations 41

enu Navigation

ree setup menus in the EPOCH XT have been designed to permit a rapid access ortant instrument setup functions. All of these menus share a general tion philosophy using the [ENTER] key and the up, down, left, and right arrow he menus themselves are constructed with tabs, sublevel tabs, control groups, rameters.

These are used for group-related functions within a setup menu. When you menu, there is a row of tabs running across the top of the screen. Use the left ht arrow keys to select the desired tab. Once the proper tab has been hted, press the [ENTER] key to enter the tab.

AWS D1.1/D1.5 is active.

Manual B-scan mode is active.

Unidirectional B-scan mode is active.

Bidirectional B-scan mode is active.

Battery life indicator when running on battery power.

Battery indicator when running on AC adaptor.

910-264-EN, Rev. G, June 2011

42 Chapt

Sublevel tabs In some of the tabs that you select, there are other subgroups of tabs. These tabs run vertically from the top to the bottom of the display. The OPTIONS tab in the [MEAS SETUP] menu and the EditPara tab in the [INSTR SETUP] menu are examples of this. Use the up and down arrow keys to select the desired sublevel tab. Once the proper sublevel tab has been highlighted, press the [ENTER] key to enter the sublevel tab.

Control Groups The parameters inside a tab are organized into control groups containone cothe firstab is acan als

Paramcontroparamthe lefparammanua

4.6 In

The EPaccordallowsEPOC(Owne

There accessmove the tabnext an

To exiter 4

ing related functions. These control groups are surrounded by a box to divide ntrol group from another. You must use the [ENTER] key to move from a tab to t control group, then the next control group. When the last control group in a ctive and press the [ENTER] key, the instrument highlights the tab again. You o use [2ND F], [ENTER] to move back one control group.

eters Parameters are found within the control group. When you select a l group with the [ENTER] key, the instrument automatically selects the first eter in the group. Use the up and down arrow keys to select a parameter and t and right arrow keys to adjust the parameter value. In some cases the eter does not have fixed selections, and you can use the alphanumeric keys to lly enter text or values.

strument Setup Menu

OCH XT Instrument Setup menu contains functions that set up the instrument ing to local requirements and based on your user preferences. This menu also you to lock instrument functions if required, check the status of the H XT, and edit the instrument startup screen with your company information r Info).

are four individual tabs in the Instrument Setup menu. When the menu is ed, the first tab, General, is highlighted. Use the left and right arrow keys to from one tab to the next. To enter a selected tab, press the [ENTER] key. Once has been accessed, use the [ENTER] key to move from one control group to the d the arrow keys to select and adjust parameters.

the instrument setup menu, press [MEAS/RESET] or the [INSTR SETUP] key.

910-264-EN, Rev. G, June 2011

The [MEAS/RESET] key can be used to exit any EPOCH XT menu at any time. This key returns to the live screen from any location within the instruments user interface.

4.6.1 G

Managing Basic Operations 43

eneral Tab

Pulser Square Standard tunable square wave pulser. Spike Locks the pulser to a narrow width to allow to use with all

transducers. This setting is used to simplify the instrument setup when the performance advantages of the tunable pulser are not required.

Filter Group Standard Standard accesses the standard instrument filters when you

press the [RCVR] key on the live screen. Other Filter Groups Olympus produces other custom filter groups

based on customer requirements. These can be selected here. When an alternative filter group is selected, you are only able to use the custom filters when the [RCVR] key is pressed on the live screen.

910-264-EN, Rev. G, June 2011

44 Chapt

Language Standard languages: English, Spanish, French, German, Italian, Japanese, Chinese, Russian, Korean, Norwegian, Swedish, and Custom language.

Key Beep When active, the instrument beeps whenever a key is pressed. Alarm Beep Toggles the alarm horn on and off. All Lock When active, this function locks all keys other than [2ND F],

[DISPLAY SETUP], and [ON/OFF]. A padlock symbol appears on the live

4.6.2 E

Editabyou casetup pcontroer 4

screen when this function is active.Cal Lock When active, this function locks the following keys: [GAIN], [CAL], [ZERO], [RANGE], [VEL], [ANGLE], [PULSER], and [RCVR].Temp Cal Used to select the automatic or manual temperature calibration.Locale Used to select the global location. The instrument uses this information to properly format numeric displays (radix) and the date.Date Sets the instrument date.Time Sets the instrument time.

ditable Parameters (EditPara) Tab

le parameters are standard on all EPOCH XT instruments. With this feature n customize the values that appear above the function [F1][F5] keys for the arameters below. These items are listed as sublevel tabs, and each contains 13

l groups with parameters.

910-264-EN, Rev. G, June 2011

Gain Gain Step Universal setting for the coarse (up and down arrows) and fine (left

and right arrows) gain adjustment Reject Zero Offset Freq (Frequency) Pulse-width setting Vel (Velocity) Rn Dl An Th Au

on

Paramparamdampi

To setup th

1. Pr2. Us

ad3. Pr

do4. Pr5. PrManaging Basic Operations 45

g (Range)y (Delay) Display delaygleicknesstoXX Customizable value for the AUTO80 % feature discussed in chapter 5

page 63 of this manual

eters that contain text, such as rectification, cannot be adjusted. Also, eters that are limited by hardware and/or software constraints, such as ng, cannot be adjusted.

e editable parameters

ess the [ENTER] key to select the EditPara tab.e the up and down arrow keys to select a sublevel tab for the parameters to be justed.ess the [ENTER] key to move to the control group and then use the up and wn arrow keys to select the parameter to be adjusted.ess the left and right arrow keys to adjust the setting.ess the [ENTER] key to move to the next control group or to the sublevel tabs.

910-264-EN, Rev. G, June 2011

46 Chapt

4.6.3 Status Tab

The ininternainform

4.6.4er 4

strument Status tab provides you with useful information related to l-temperature, battery capacity, and hardware/software versions. This ation might be used by Olympus to help support the product.

Owner Information Tab

910-264-EN, Rev. G, June 2011

The owner information screen (Owner Info) tab allows you to customize the EPOCH XT startup sequence. At the end of the startup sequence there is a splash screen where the information entered here appears. This is typically used to enter the instrument owners company information and contact information. An example is shown below.

4.7 Di

The EPdisplaA-scan

There the firsthe nexbeen aarrow

To exitSETUPManaging Basic Operations 47

splay Setup Menu

OCH XT Display Setup menu contains functions that control the EPOCH XTs y appearance. These functions include color scheme, display brightness, and appearance.

are two individual tabs in the Display Setup menu. When the menu is accessed, t tab Color is highlighted. You can use the arrow keys to move from one tab to t. To enter a selected tab, you must press the [ENTER] key. Once the tab has

ccessed, use the [ENTER] key to move from one setting to the next and the keys to adjust settings.

the Display Setup menu, you should press [MEAS/RESET] or the [DISPLAY ] key.

910-264-EN, Rev. G, June 2011

48 Chapt

The [MEAS/RESET] key can be used to exit any EPOCH XT menu at any time. This key returns you to the live screen from any location within the instruments user interface.

4.7.1

With tthe ins

Fa EL Ou

sh M

When schem

It is imbatteryer 4

Color Tab

he Color tab you can set the display brightness and choose the color scheme for trument. There are four color-scheme choices:

ctory Use of full color display for an interesting outdoor presentation Display Similar in appearance to electroluminescent displaystdoor White background with dark text to maximize visibility in sunlight as

own aboveonochromatic Black, white, and grey monochromatic colors

you select a color scheme, the instrument displays an example of the color e within the tab.

portant to note that the display brightness can greatly affect the instruments life. The default brightness setting is 50 %.

910-264-EN, Rev. G, June 2011

The gradient is a color fading option behind all parameters and text when viewing the A-scan display. This can be turned on or off based on the your preferences.

Scan Palette settings are for use with the EPOCH XT B-scan option. Please see section 11.5 on page 185 regarding the B-scan software option for more information.

4.7.2

The A-applic

The av

Managing Basic Operations 49

A-scan Tab

Scan tab is used to modify the appearance of the EPOCH XTs A-scan to meet ation needs or your preferences.

ailable settings are listed below:

Live A-Scan Display Outline The live A-scan is drawn as a single line. Filled The A-scan outline is filled in with the A-scans color (except in

RF mode). This helps to increase visibility in certain lighting conditions.Envelope Display This setting affects the appearance of A-scans and Peak Envelopes that are captured with the Peak Hold and Peak Memory functions. Peak Hold captures a single reference A-scan, and the live A-scan is displayed

910-264-EN, Rev. G, June 2011

50 Chapt

in the foreground. Peak Memory tracks the highest peak on the live A-scan and draws an envelope across the peak positions. Outline Captured A-scans and Peak Envelopes are drawn as a single

line. Filled Captured A-scans and Peak Envelopes are filled.

X-Axis Grid Mode The EPOCH XT has four display modes for the X-Axis grid. These four settings are designed to provide you with a convenient er 4

display mode for the application. The modes and examples are shown below:

Grid Off No grid lines are displayed. 010 appear along the bottom of the A-scan.

910-264-EN, Rev. G, June 2011Managing Basic Operations 51

Standard 10 equally spaced grid lines.

SoundPath 5 equally spaced grid lines with sound path values.

910-264-EN, Rev. G, June 2011

52 Chapt

er 4

Leg Up to 4 grid lines showing sound path legs (half paths) based on part thickness and angle.

Y-Axis Grid Mode The EPOCH XT always measures amplitude up to 110 % full-screen height. You can choose to display the Y-Axis on the A-scan display from 0100 % or from 0110 % FSH. Examples are shown below:

100 % Grid

910-264-EN, Rev. G, June 2011

4.8 M

The EPtakes adisplato set u

There accesskeys to[ENTEfrom owithin

To exitManaging Basic Operations 53

110 % GridBasement Break This feature modifies the appearance of the EPOCH XTs A-scan in fullwave rectified mode. When Baseline Break is active, the instrument locates all zero cross points in the RF waveform and forces the fullwave rectified mode to display these zero cross points by pulling the A-scan to the baseline. This feature helps you to see small defects that are close to the back surface of the test piece, especially at large ranges.

easurement Setup Menu

OCH XT Measurement Setup menu allows you to choose how the EPOCH XT nd displays measurements. Use this menu to select which measurements to

y for the application, to choose how the gates perform their measurements, and p special measurement features and options such as DAC/TVG and DGS/AVG.

are three individual tabs in the Measurement Setup menu. When the menu is ed, the first tab (Meas) is highlighted. You must use the left and right arrow move from one tab to the next. To enter a selected tab, you must press the R] key. Once the tab has been accessed, you can use the [ENTER] key to move ne control group to the next, the up and down arrow keys to select parameters a control group, and the left and right arrow keys to adjust parameters values.

the Measurement Setup menu, you should press the [MEAS SETUP] key.

910-264-EN, Rev. G, June 2011

54 Chapt

The [MEAS/RESET] key can be used to exit any EPOCH XT menu at any time. Pressing this key returns the display to the live screen from any location within the instruments user interface.

4.8.1The EPthe abilocatio

If you then thturnedmeasumeasuused fo

Readiner 4

EPOCH XT MeasurementsOCH XT can display up to five (5) measurements on the live screen. You have lity to choose which measurements to display in each of the five measurement ns. The measurement locations are shown in the screen below.

choose to leave measurement location #5 OFF in the Measurement Setup menu, e instrument displays measurement #4 in large numerals. If measurement #5 is ON, then location #4 is split in half horizontally to accommodate both rements. Measurement location #5 is typically used to display specialized rements for DAC/TVG, DGS/AVG, or AWS D1.1 defect sizing, but it can be r any measurement as needed.

g 1 Reading 2 Reading 3 Reading 4 Reading 1 Reading 2 Reading 3 Reading 4Reading 5

910-264-EN, Rev. G, June 2011

The EPOCH XT is capable of making several types of measurements using either Gate 1 or Gate 2. The two gates are completely independent of each other unless you choose to take an echo-to-echo measurement. The list of available measurements and their icons from the live screen are shown in Table 4 on page 55.

Table 4 Measurements and icons

Gate

Gate

GateDIST

GateDIST

GateREFL

GateREFL

GateDIST

GateDIST

GateX VA

GateX VA

GateDEPTManaging Basic Operations 55

Measurement Icon Description

1 THICKNESS Thickness in Gate 1. Not used with Angle.

2 THICKNESS Thickness in Gate 2. Not used with Angle.

1 SOUNDPATH ANCE

Sound path (Angular) distance in Gate 1.

2 SOUNDPATH ANCE

Sound path (Angular) distance in Gate 2.

1 DEPTH TO ECTOR

Depth to reflector in Gate 1. Used with Angle.

2 DEPTH TO ECTOR

Depth to reflector in Gate 2. Used with Angle.

1 SURFACE ANCE

Horizontal distance to reflector in Gate 1. Used with Angle.

2 SURFACE ANCE

Horizontal distance to reflector in Gate 2. Used with Angle.

1 SURFACE DIST LUE

Horizontal distance minus X-value (distance from beam index point to front of wedge) in Gate 1. Used with Angle.

2 SURFACE DIST LUE

Horizontal distance minus X-value (distance from beam index point to front of wedge) in Gate 2. Used with Angle.

1 MINIMUM H

Minimum Depth in Gate 2. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

910-264-EN, Rev. G, June 2011

56 Chapt

Gate 2 MINIMUM DEPTH

Minimum Depth in Gate 2. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

Gate 1 MAXIMUM DEPT

Maximum Depth in Gate 1. Resets on gate

GateDEPT

GateAMP

GateAMP

GateAMP

GateAMP

GateAMP

GateAMP

Gate

Gate

Table 4 Measurements and icons (continued)

Measurement Icon Descriptioner 4

H adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

2 MAXIMUM H

Maximum Depth in Gate 2. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

1 CURRENT LITUDE

Amplitude measurement in Gate 1. Displays as % of full-screen height (FSH).

2 CURRENT LITUDE

Amplitude measurement in Gate 2. Displays as % of full-screen height (FSH).

1 MAX LITUDE

Maximum Amplitude in Gate 1. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

2 MAX LITUDE

Maximum Amplitude in Gate 2. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

1 MIN LITUDE

Minimum Amplitude in Gate 1. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

2 MIN LITUDE

Minimum Amplitude in Gate 2. Resets on gate adjustment, most pulser/receiver adjustments, and on press of [MEAS/RESET] key.

1 AMP TO CURVE Amplitude measurement in Gate 1. Displays echo height as a percentage of DAC/TVG curve height.

2 AMP TO CURVE Amplitude measurement in Gate 2. Displays echo height as a percentage of DAC/TVG curve height.

910-264-EN, Rev. G, June 2011

4.8.2The firmeasuautomexampselectemeasuwhichscreen

Gate 1 DB TO CURVE Amplitude measurement in Gate 1. Displays echo dB value compared to curve height where the curve equals 0 dB.

Gate 2 DB TO CURVE Amplitude measurement in Gate 2. Displays

EchoGate

AWSRATI

FLATSIZE

OVE

Table 4 Measurements and icons (continued)

Measurement Icon DescriptionManaging Basic Operations 57

Meas Tabst control group in the Meas tab allows you to select the Auto or Manual rement selection. In the Auto selection, the relevant measurements are atically displayed based on the type of inspection and setup parameters (for le, straight beam, angle beam, AWS, B-scan). When Auto measurement mode is d, you cannot access the second control group in the tab. When the Manual rement mode is selected, use the second control group in the tab to choose measurements to display and in which location to display them on the live . This tab is shown below.

echo dB value compared to curve height where the curve equals 0 dB.

-to-Echo (Gate 2 - 1)

Gate 2 thickness minus Gate 1 thickness (echo-to-echo measurement).

D1.1/D1.5 WELD NG (D)

D rating calculated for the gated echo.

BOTTOM HOLE (FBH)

Flat-bottom hole (FBH) size (equivalent reflector size) for DGS/AVG evaluation.

RSHOOT (OS) Overshoot value in dB comparing echo height to DGS/AVG curve.

910-264-EN, Rev. G, June 2011

58 Chapt

The thmeasubelow

Un Am

for(x.

Xof Xdi

Ou TH

th Ca

us Cu

insonththdier 4

ird control group in the Meas tab contains several settings that can affect the rements taken by the EPOCH XT. Descriptions of these settings are shown :

it Select from Inches, Millimeters, or Microseconds.p Resolution You can select the number of decimal places to be displayed

amplitude measurements. The EPOCH XT measures amplitude to 0.25 % FSH xx). You may change this to 0.5 % (x.x) or 1 % (x) if desired.Value This is the distance from the Beam Index Point on a wedge to the front the wedge. When using Gate 1 Surface Dist X Value or Gate 2 Surface Dist Value measurements, this number is the correction that is used for the

splayed measurement.ter Dia. User entered value for Curved Surface Correction calculations. Resolution You can select the number of decimal places to be displayed for

ickness measurements (x, x.x, x.xx, x.xxx).libration The EPOCH XT allows you to perform an angle beam calibration ing the Sound Path reflector or the Depth to a reflector as the known reference.rved Surface Correction (CSC) This is a standard feature on all EPOCH XT truments. This feature is used when inspecting with an angle beam transducer a surface that is curved in the direction of the sound path. This feature corrects e horizontal distance and depth to reflector measurements based on part ickness and outer diameter. This function currently works on the outer ameter only.

910-264-EN, Rev. G, June 2011

Trigger Choose between Internal, External, and Single. For most applications, this setting should be left on Internal.

4.8.3 Gates Tab

The Gand Gain Gattab are

GapePeexManaging Basic Operations 59

ates tab allows you to set up measurement modes for Gate 1 and Gate 2. Gate 1 te 2 can be used independently as required by you, or Gate 2 can track the echo

e 1 allowing Gate 1 to act as an interface gate. The selections within the Gates detailed below:

te1 Measurement Mode and Gate2 Measurement Mode: The EPOCH XT rmits three different measurement modes for each gate. The three modes are ak, First Peak, and Edge (also known as FLANK). The following screens show amples of the three modes:

910-264-EN, Rev. G, June 2011

60 Chapt

Peak Measurementer 4

First P