
2/8www.olympus-ims.com

Absolute response

Dierential response

Direct eld

Indirect or remote eld

Simplied magnetic fux path Magnetic fux lines

Exciter coil Pickup coils, absolute/dierential

Single-exciter model shown

Transition zone

TRS-Single exciter

TRT-Dual pickup

TRX-Dual exciter

Remote Field ProbesOlympus NDT is proud to introduce its improved tube testingremote feld probe series. Remote feld testing (RFT) probes arebeing used to successully inspect erromagnetic tubing suchas carbon steel or erritic stainless steel. They are very sensitivewhen detecting and measuring volumetric deects resulting romerosion, corrosion, wear, and bae cuts. Sensitivity to pitting hasbeen urther improved with the new design o these probes.

A remote feld probe is a low-requency variant o the exciter-pickup eddy current probe, characterized by a exciter-pickupdistance o at least 2.5 to 3 times the tube outside diameter (OD).This distance is necessary and critical in order to have the pickupcoils sense the remote magnetic feld rather than the directfeld.

Olympus NDT remote feld probes and equipment are usedaround the world to successully inspect heat exchangers, eedwa-ter heaters, and boiler tubes.Olympus remote-feld probe improvements eature:

Signal clarity and detection capability o the dierentialchannel

Increased signal-to-noise ratio with improved electronics and

preamplifer Thicker probe casing or increased durability Flat probe tip that does not get stuck in dirty tubes Lightweight design or larger probe diameters

Improved Rigid Casing Probes

The improved remote feld probes are available in three rigid cas-ing common confgurations:

Single exciter TRS series Dual exciter TRX series Dual pickup TRT series

All three models are available in various diameters, center re-quencies, and cable lengths. They also eature a solid body con-struction, a sturdy probe cable, an embedded preamplifer circuitinside the probe head, and a 19-pin ITT Cannon connector orcompatibility with the MultiScan MS 5800-R acquisition unit andolder equipment such as the TC4700 and TC5700.

Remote Field Testing (RFT)Remote feld testing is a through-wall transmission technique. Thebasic probe is made o one exciter coil and two pickup coils. Twomagnetic felds are present: the direct feld, in the vicinity o theexciter coil, is rapidly attenuated with distance while the indirectfeld propagates along the tube axis and is rediused back throughthe tube wall.

The zone where the indirect feld is dominant is called the remotefeld. This zone is present at a distance greater than 2 tube diam-eters.

All remote feld probes have their pickup coils set at 2.5 to 3 timesthe tube OD to ensure that only the indirect feld is picked up.

All Olympus NDT RFT probes have a set o circumerentialpickup coils that can be operated simultaneously in absolute anddierential mode.


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Previous TRB model TRX model

Hole 2.7 mm

FBH 80% 3.0 mm

FBH 60% 3.5 mm

FBH 40% 4.8 mm

4 x FBH 20% 4.8 mm

Lower back-ground noiseand sharpersignal

Support ring 120 mm

20% OD groove

40% OD groove

60% OD groove

60% OD groove

40% OD groove

20% OD groove

Support ring 120 mm

a) Support signal origin oset has been minimized or much aster RFT calibration.b) Pickup and exciter eect signals are now very similar on single exciter models.

b

a

a) Internal pitting indications are better separated with the new optimized coils

b) Throuh-wall hole shown clearer among other indications with new design

a

Previous TRB model New TRX model

b

Hole 6.4 mm

Hole 4.8 mm

Hole 3.2 mm

Large diameter TRX model Previous TRB model TRX model

Hole 1.4 mm

Hole 2 mm

Hole 3.2 mm

Preamplifer and ElectronicsOlympus RFT probes were the frst to use a preamplifcationcircuit located inside the probe head, dramatically reducing thecable slap noise produced when pulling the probe. The new se-ries probes include urther electronic improvements and balancedcircuits or increased noise immunity.

Mechanical ResistanceIn-service tubes are rarely clean and can signifcantly contribute toprobe casing wear. The new design eatures a probe casing twiceas thick as the previous models, helping to extend the probe lie.

Flat TipFlat tip is now included in all rigid RFT probe designs. A atprobe tip helps prevent the probe rom getting stuck on the inter-nal scale commonly ound in in-service tubing. Probe ends have aslightly oversized diameter to help urther protect the casing rom

wear.

Higher Dierential Signal ClarityRedesign o the dierential channel has signifcantly improvedsignal cleanliness and clarity, helping the analysts to reduce thenumber o non-relevant indications.

Improved ResolutionOptimized coil design now allows greater resolution o localizeddeects on both the absolute and the dierential channels. Theimproved resolution helps distinguish the indications.

Sharp SignalsOptimized coil designs deliver sharp, crisp signals, ree o noise.On single exciter models, the absolute channel has also been im-proved in order to obtain better similarity o the exciter and pickup

eects, making analysis using the Voltage Plane easier and quicker

Improved Detection CapabilityWith increased signal quality comes urther detection capability,especially on the dierential channel. As the noise level is broughtdown on the new models, smaller holes are detected with clearersignals. The same design optimization has been applied to the

whole rigid RFT probe range, so large diameter probes now have amuch better dierential channel than beore.

Featured Improvements



NOTE: Dierential channel is made by subtracting the lead and trail pickups.

Exciter Lead pickup(absolute channel)

Trail pickup

Dierential response No detection o small deects as both coilsdetect and subtract the same signal.

Trail exciter Lead exciterLead pickup(absolute channel)

Trail pickup

ail pickup Trail pickup

Trail pair Lead pair

Lead pickup Lead pickupExciter

Lead DIFF Trail DIFF

Delay

Single Exciter (TRS series) Preerred as a general purpose probe or wall-loss detection Clear response on wall-loss and erosion deects 2 Channels: absolute (ABSL) and dierential (DIFF) Probe is optimized or simple ABSL interpretation Probe is blind to small deects (pits) on the near side o the

support plate.

Understanding The Dierences Between RFT Probe Models

Dual Exciter (TRX series) Used when pitting is expected in the tubes 2 exciters, switchable lead/both/trail 2 channels: absolute (ABSL) and dierential (DIFF) Probe is optimized or simple DIFF interpretation Clearer response to small deects (pits) even on both sides o

the support plate Absolute data is more difcult to analyze than with a single

exciter

Wear scars, erosion, and wall loss are detected on both sides othe support plates by the absolute channel.Large deect detected rom absolute channel on both sides o support

Absolute coil

Dual-exciter probes can detect pits on both sides o support plate,as there is always one exciter to supply energy to the pickup coils

Absolute channel ismore dicult to interpretas there are 3 signals(instead o 2 or a singleexciter) rom a deect.

Near side: the supportshields the pickups romthe magnetic eld

Dual Pickup (TRT series) Used when deects are expected at the tubesheet location 4 channels: lead set (ABSL/DIFF) and trail set (ABSL/DIFF) Combines advantages o both single- and dual-exciter models Data analysis is longer and requires experienced users

The dual-pickup probe acts as two single-exciter probes in oneprobe casing, thus combining the excellent wall-loss response othe absolute channel and the capability o the dual-exciter modelto detect pits on each side o the support plate. This makes thedual-pickup model ideal or inspecting at both tubesheets.

These probes require experienced operators as there are 4 chan-nels to analyze, in addition to a delay between the lead and trailchannel sets.

Lead driver eect

Pickupeect

Pickupeect

Trail driver eectDriver eect

Short deect comparison:Voltage plane (top) andstrip chart (bottom).Far side: detection is

possible

Small deects such as individual pits will not be detected by theDIFF channel on the near side o support, as a result o subtractingthe same variations rom the exciter eect.


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Oversized DiametersProbe diameters ranging rom 9 mm (0.35 in.) to 26 mm (1.02 in.)are built with a protective stainless steel casing. Larger probediameters up to 50 mm (1.97 in.) are built using a tough and light-weight one piece plastic design. This design also includes stainlesssteel wear rings on each end, in addition to a sturdy probe cableto endure multiple probe pulls. Coils are potted (in black on pic-ture) or maximum protection. TRX-370-300-N20

Near Field Technique (NFT)The near feld testing (NFT) eddy current technology is a rapid andinexpensive inspection solution designed specifcally or ID deectdetection in carbon steel fn-an tubes. NFT probes reduce costand improve ease o use because they do not require expensiveand cumbersome externally reerenced coils.

Near feld probes are an excellent alternative to magnetic uxleakage (MFL) probes. This new technology, which is based on asimple eddy current exciter/pickup design, produces signals thatare very easy to analyze. Because NFT probes operate within thesame requency range as remote feld testing (RFT) probes, NFT

probes are manuactured to be used with the standard Multi-Scan MS 5800 RFT connector. In addition, there is no magnet,making probe pushing and pulling a lot easier.

Features Ideal or carbon steel fn-an tubes Excellent alternative to MFL probes No need or a reerence probe or extension Excellent detection o internal thinning and pitting based on

sensitivity o eddy current to lit-o (or fll-actor) 2 channels: absolute (ABSL) and dierential (DIFF) High-quality, amplitude-based signals or very ast and simple

data analysis Thick probe casing or increased durability

Compatible with the MultiScan MS 5800R Compatible with competitor equipment with help o Reverse

Probe Adaptors Improved signal clarity on pittingmarket leader

NOTE: These probes are not designed to detect OD deects.

The absolute channel easily detects internalvolumetric deects such as corrosion,erosion, and wall thinning. The damageseverity can be evaluated by analyzing thesignals amplitude only.

While pit clusters can be detected with theabsolute channel, the dierential channelbetter detects more localized deects, suchas individual pits, with a much greatersignal clarity than with competitor probes.

Absolute Exciter-Pickup conguration Dierential Exciter-Pickup conguration

Olympus Competition

Aluminum-nned carbon steel tube

Exciter coil

Absolute channelDierential channel

Magnetic fux and eddy

currents restricted to tu

Internal taperdeect

Internal straightdeect

0.25 in. diameterhole

0.25 in. diameter80% ID pit


0.125 in. diameterhole

0.25 in. diameter

40% ID pit




Ordering InormationThe new series rigid remote and near feld probes can be ordered by constructing a 12-digit part number that includes the probe model,diameter, center requency, and cable length. The ollowing example shows a typical part number example. Please reer to the Tubeprobe catalogue or more details.

Part Number Example

Improved RFT probe (TR) dual-exciter (X), 13 mm diameter (130), 300 Hz center requency (300), and with a nylon (N), 20 m cable (20)

TRX-130-300-N20Cable Length20 m or RFT30 m or NFT

Probe center frequency (RFT):300: from 100 Hz to 1 kHz

02K: from 600 Hz to 6 kHz15K: from 5 kHz to 15 kHz

Probe center frequency (NFT):300: from 100 Hz to 1 kHz

Probe modelS: Single exciter RFT

X: Dual exciter RFTT: Dual pickup RFT

D: NFT

Probe diameter (RFT):From 9 mm to 20 mm by steps o 1 mm

From 22 mm to 50 mm by steps o 2 mm

Probe diameter (NFT):From 11 mm to 31 mm by steps o 1 mm

Probe AdaptorsOlympus NDT is continuously devel-oping new probe adaptors to ft theMultiScan MS 5800 instrument. Adap-tors or dierent probe manuacturersare currently available or ECT, RFT,and MFL probe technologies.

The complete adaptor list can beound in the tube probe catalog. Pleasecontact Olympus NDT or a customadaptor development request.

Reverse Probe AdaptorsOlympus NDT has developed a serieso reverse probe adaptors to allowthe use o the Olympus remote feldand near feld probes with other manu-acturers equipment. Each equipmentmanuacturer has its own connector, in-put confguration, exciter voltage, etc.These dierences have resulted in thedevelopment o one adaptor model perinstrument and probe technology. In-deed, all remote and near feld probes,including the new series TRS, TRX, TRT,and TRD can now be connected to

instruments such as the Zetec MIZ-28or CoreStar OMNI-100 and OMNI-200,without the need or a cumbersomeRFT amplifer box.

The list below presents the currentreleased reverse adaptors. Please notethat Olympus NDT can develop acustom reverse adaptor or your equip-ment.

TE-ADP-004: ECT A/C probe adaptor TR-ADP-005: Universal Zetec RFTprobe adaptor

TF-ADP-001: MFL special wall lossprobe adaptor

Part Number Item NumberEquipment

CompatibilityNote

Reverse Adaptor for RFT Probes

TR-REVADP-002 U8767326CoreStarOmni-100

DC power supplysupplied

TR-REVADP-004 U8767327CoreStarOmni-200

DC power supplysupplied

TR-REVADP-006 U8767238ZetecMIZ-28

Direct connectionto the equipment -no need or a RFTpreamplifer box

Reverse Adaptor for NFT Probes

TR-REVADP-001 U8767324CoreStar

OMNI-100

TR-REVADP-003 U8767325CoreStarOMNI-200

TR-REVADP-005 U8770450ZetecMIZ-28

Direct connectionto the equipment no need or a RFTpreamplifer box

All above reverse adaptors are ONLY compatible to Olympus remote eld probe series TRA, TRB, TRC, TRD, TRE, TRS, TRT, and TRX.


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Sotware ImprovementsMultiViewMultiView has been improved in many ways. Many o the im-provements that have been made to this version o MultiView area result o customer eedback rom the feld users perspective.These improvements make the sotware considerably more user-riendly. Important improvements were made to:

Stability o the sotware User interace, data presentation, data read-back, etc. Acquisition speed and acquisition lags IRIS inspections

Several customer-specifc improvements were made to:

Report handling Data display and integrity Footswitch support

A number o important and benefcial sotware maintenance itemshave also been addressed with this sotware release.

CARTOCARTO is a sotware program designed specifcally to manageand report heat-exchanger inspections. This Microsot Windowsbased data management sotware transorms inspection data(ET, RFT, IRIS, and MFL) into accurate and concise color-codedreports.

When combined with MultiView analysis sotware, CARTO pro-vides a completely integrated heat-exchanger inspection systemwith sophisticated planning and reporting capabilities. Importantimprovements were made such as:

Numbering capabilities with 4-points tube row/column

display. Automatic creation o eature codes and results when

importing reports.

Tube Testing Help CenterWhen ordering product amiliarization training through your localOlympus NDT sales outlet, you automatically receive the highlyacclaimed Tube Testing Help Center. The help center is a trainingprogram developed specifcally to help you and your inspectionteam amiliarize yourselves with the principles o tube testing andthe world-class inspection equipment oered by Olympus.

HELP CENTER

for tube testing

FAQ

Tools

Carto

ET

RFT

MFLIRIS

MultiView and inspection technique

Computer settings

Contact us

Inspection technique selection

Probe selection guide

Inspection procedure

User manuals

Introduction and initial settings

Tubesheet creation

Inspection planning

Result analysis

Theory of operation

Setup and calibration

Acquisition and analysis

Theory of operation

RFT tutorial software



Theory of operation



Theory of operation

System component

Setup and adjustment

Data acquisition and analysis

Data example

Numbering capabilities with4-points tube row/columndisplay.

Creation o eature codesand results, when importing

reports.

TubeTes

tingHelp

Center

v1.0r1

Trainingf

orTC5700

/MS5800

andMult

iViewsoft

ware

DMCD002

-01EN_A


8/8

Shinjuku Monilith, 3-1Nishi-Shinjuku2-chome, Shinjuku-ku, Tokyo 163-0914,

Japan, Tel: 81(0)3-6901-4039

48 Woerd Avenue, Waltham, MA 02453, USA, Tel.: (1) 781-419-3900

Stock Road, Southend-on-Sea, Essex, SS2 5QH, UK, Tel.: (44) (0) 1702 616333

505, boul. du Parc-Technologique, Qubec (Qubec) G1P 4S9, Tel.: (1) 418-872-1155

31 Gilby Road, Mount Waverly, Victoria, 3149, Tel.: (61) 130-013-2992

Valley Point Ofce Tower, 248373, Tel: (65) 68-34-00-10

Advances in Tube_Testing_EN_201006 Printed in Canada Copyright 2010 by Olympus NDT.

isISO9001certied

www.olympus-ims.com

[email protected]

AccessoriesMS 5800 BackpackThe MS 5800 Backpack has been designed and manuacturedwith the comort and saety o your operational sta in mind.It improves saety when the operator needs to carry inspectionequipment on steps or in awkward places enabling constant3-point contact.

The backpack has been developed and tested in the feld with thehelp o several service companies whose input has been used toprecisely defne the requirements o this unique product.

In an industry where saety and security is paramount, theMS 5800 Backpack protects both your equipment and your sta.

Designed with the operator in mind Improves compliance with saety regulations by enabling

3-point contact Oers improved protection to the instrument Multiple pockets to carry calibration tubes, documents, and

accessories. Velcro loop or attaching coiled probes Steel D-rings or hoisting Robust Cordura construction

Padded shoulder straps Side-carry molded handle Rigid rubberized bottom or better load distribution and water

resistance Nonrusting hardware

MS 5800 FootswitchThe MS 5800 Footswitch (P/N: TA-FSW-001) allows the remotecontrol and one-man operation o the Olympus MultiScanMS 5800 inspection system.

The MS 5800 Footswitch helps to maximize the efciency o tubebundle inspections by reducing the overall inspection time andthereore, the equipment service downtime.

Designed or one-man operation Oers much easier and more exible control o the inspection

system Oers a signifcantly reduced inspection and analysis time Heavy-duty design that is suitable or harsh environments Four switches that are mounted onto two boards to allow

maximum exibility: two switches to be used individually orall our switches to be used simultaneously.

Tube Inspection Probe CatalogThe Tube Inspection Probe Catalogeatures the eddy current,magnetic ux leakage, remote and near feld, and IRIS ultrasonicprobes and accessories and related ordering inormation. Thisdocument can be downloaded rom the Olympus NDT Web site.

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