MODEL: GM100
Contents
1. MODEL GM100 ULTRASONIC THICKNESS GAUGE INSTRUCTION MANUAL 5 eo VERSION GM100 E 0 CONTENTS Introduction 01 Operation codition 04 Operation instruction 05 Measurement tips 09 Precautions for accurcy 11 Maintenance 13 Notice 14 Table of sound velocity 15 8 Table of sound velociey Sound velocities of common materials Material Velocity m s Material Velocity m s Aluminum Acetate resin 2670 Zinc Phosphor bronze 3530 Silver Turpentine 4430 Glod Glass 5440 Tin Incoloy alloy 5720 Iron Steel Magnesium 6310 Brass Monel alloy 6020 Copper Nickle 5630 SUS Steel 4330 mild 5850 Acrylic resin Steel 330 5660 Water 20 C Titanium 6070 Glycerinl 1920 Zirconium 4650 soluble glass 2350 Nylon 2620 21 Al 7 1 Warranty and warranty policy Please fill thewarranty card with your cachet chop after purchasing this products the warranty periodfor repaired is 12 months formthe date oforiginal purchase During warra nty period productmust be returned with the invoice copy and warranty cardto our customerservice department The product will notbe warranted which without the warra2. 10 thickness measurementstorage and recallfunction available which facilitatesthe height workor working in wild area e Sound velocity measurement With a giventhickness by a sample hardwareto measure the sound velocity which avoid the furtherconversion or consultationof the table 12 sound velocity for different material which also adjus table Low battery indication Auto power off mode designed to conserve battery life More than 10000times long liftkeys The unithas a special memory that retainsall of its setting even when the power is off il 2 Operation condition 2 1 Operation area condition For areas thatis equal or bigger than thearea this unitis suitable formeasurement Tomeasure the slimparts axially thatis not verticalto the surface the areashall betoo small otherwise the error measure may happen 2 2 Curved surface condition When the materialis curved surface like boilerwall or tubing the curvature radius must be more thanor equal to10mm and thewall thickness must be more thanor equal mm This requirements is referring to steel material as for the curve surface ofother materials measuring requirements westill can notprovide exact data we highly appreciate if you feedbackus and share with your precious experience 2 3 Roughness condition This gauge wildly applies upon the rough hardware material formost cases ourprovided tra nsducer can makeexact measure
3. This unitis not suitable for cast iron due to its big crystall oid composition 1 2 How itwork This unitis comprised oftransimtting circuit receiving circuit Hi frequency oscillator counter central unit proces sor keypad and moniter etc adopting ultrasonic pulse ref lect principle Similarto light wave measure principal the sonic pulse occurs form the unittravels through the material being measured tillreach the interfaceand reflects backto determine the thickness of the target material See the diagram below NIE 4 Transmitting 4 Receiving Feedback wave gt Jaap ejdsiq fe dsip 01 ped ay Hi frequency oscillator Counter gt 1 3 Standard packing amp Parts description 1 Standard packing Main unit 1PCS Transducer b 10mm 5MHz 1PCS Coupling agent 1PCS 50mD 4mm Sample block 1PCS Optional accesseries b 10mm 2 5MHz 1PCS 2 Parts description Receive socket Transmit socket Qo CHEN Battery compartment rear case Sample block j 02 l be cleaned forpreventing rust Inhigher temperature envir onment be sureprotect the blockform the dropletof water If the gaugeis not usefor a long period please apply some antirust on thesample block 6 5 Avoid shocking impact Don
4. exit the review mode andback to normal status THICKNESS Review saved data 3 7 Low battery indication When icon flashes please replace the batteries for further measurement 3 8 LCD backlight amp Automatic power off Before turn onthe gauge holdpressing CAL and press 9 button to turnon the backlight will be activated every operation will turnon the backlight for 7 seconds This unit will be turne joff automatically in 2 minutes without any operation Al 11
5. have its one measuring side parallel with another otherwise will obtain wrongresult 4 7 Influence ofthe material temperature The size amp sound velocity ofmaterial will change with the temperature when the precision is critical please make m easurement in 2samples of the material under thesame te mperature to determinethe proper readingresulting from the temperature Whentaking measurement forsteel parts in high temperature this method maybe adopted toobtain the correct reading 4 8 High acousticreduction material For materials infiber poriferousor big granular acoustic dispersion will causethe energy attenuationthat may result in abnormal readings practically the readingless than the actual thickness inthis case thematerial is notsuitable for the gauge 4 9 Reference sampleblock For calibration forthe gauge agiven thickness orsound velocity of the material is veryimport Calibration needsat lest one referringstandard sample block This gaugeis pr ovided with a4 0mm sample blockon the frontcabinet MEE 4 4 1 Cleaning surface Before measuring the dust dirt rustingand grease etc that adheres onthe hardware workpiece mustbe removed off andcleaned 4 2 Decreasing the roughness of surface Too rough surface may result inmeasure error faultrea ding Please tryto make the surface smooth by milling pol ishing filling orusing high viscosity coupling agent 4 3 Rough m
6. achiningsurface The regulartiny texture slots resulting form rough machi ning process maycause error and the compensation meth od is thesame as in4 2 adjusting the angle between the crosstalk segregating boardof the transducera metal mem brane crossing thedetector bottom centreand linear texture slots parallel orvertically may alsoget a betterresult 4 4 Measuring pipeand tubing When measuring cylindricalparts to determinethe thick ness of the pipe wall orientation of the transducersis impo rtant If thediameter of thepipe is largethan approximately 4 inches measurements should be made with the transducer oriented so thatthe gap inthe wearface isperpendicular at right angle to long axis of the pipe For smaller pipe dia meters two measurements should be performed one with the wearface gapperpendicular anotherwith the gap para llel to thelong axis ofthe pipe The smaller ofthe two displayed values should thenbe taken as thethickness at that point a2 n VEG EAEE m s mm Calibration statu Calibration accomplished 3 3 Thickness measurement Put the couplingagent on thearea to be measured to co uple the transducerwith the hardware workpiece LCD will display the thickness reading Notes mila icon onthe screen indicates well coupling if the icon flashesor showsthat means a poor coupling After remove the transducer the reading will behold k CAA THICKNESS mm mm Measurement ac
7. alibration For most hardwareby forging casting their havediffer ent inner structure so that the sound velocity slightdifferent Toreach the exactreading the referringblock has similar structure as thehardware In comment measurement you check thesound velocity on the tablestated on this manual instead oftaking calibrat ion for thereferring block However this table just for refer ence sometimes thesound velocity willbe different cause by differentphysical chemicalfactors The sound velocity of mild steelis adopted onthe reference table 14 the protection ofthe transducer andits precision werec ommend that the surface temperature ofthe hardware workpiece should notbe over 60 C otherwise the transd ucer can notput into use Operation temperature 0 40 C Relative humidity lt 90 RH Hardware workpiece material temperature lt 60 C Do not applyin violent vibration erosive material Avoid impactand humidity 3 Operation instruction 3 1 Before measurement 1 Connect the transducer with the main unit press b to turn CD display full screen for 0 5 second with back light then icon will keepscanning with figure testing in 2times Afterthat LCD displaythe last applied sound velocity with registered memoryunit indicating the gaugeis ready foruse Ae He MANA VEL VEL B ms mm m s 21314 5 EL ohio F llscrean Last applied sound velocity amp registe
8. complished In a wellcoupling measurement 3 4 Sound velocity measurement With a giventhickness to readout sound velocity of mat erial Obtains the thickness of materialby using vernierca liper micrometer then couple the transducer withthat sa mple material untila reading displayson the LCD remove the transducer and press or w toadjust the reading to 1 09 match the thickness by caliper mirometer then press VELto display the sound velocity and savein current soud velocity memory unit Lt JL bt L ALI mm mm m s Measuring Adjusting Velocity read out the thickness actual thickness 3 5 Data storage 1 Keeppressing STORE for 2 secondto enter thedata store mode LCDdisplay THICKNESS mm Micon with first memoryunit If thefirst memory unitis not being registered so LCD will display 0 0 2 Press or wto select yourdesired memory unit 1 10 3 Afterpicked up thememory unit thenew measurement will be renewthe memory unit when the measurement completed the lastreading will bestored in theselected memory unit ut Lint f 0 1 n al mm mm mm Select memory unit Taking measurement Measurement amp amp saving data storage accomplished 3 6 Review thesaved data In normal status press STORE for 2 secondswill enter into review datamode press or W will display saved data orderly Press STORE to
9. h 6 4 Cleaning thesample block Because of coupling agent should beput on thesample block during calibration after use thesample block should 18 3 gt LCD diagram Low battery indicator di Coupling indicator m s Sound velocity unit mm Thickness unit VEL Sound velocityindicator LENS Thickness indicator V Store recall indicator El Storedunit indicator lg Calibration indicator AE Ee H k DEMS VEL H m s mm I ED EI ET ET TE LCD display 4 Keypad diagram ON OFF key CAL Calibration key VEL Sound velocitykey STORE Mode shiftkey CAL b lightactive key Sound velocity thickness thickness unit adjust recallkey Sound velocity thickness thickness unit adjust recallkey KEYPAD 1 4 Specification sample block byusing micrometer caliber Display 4 digital LCD display Minimum display unit 0 1 mm 5 8 Abnormal reading Working frequency 5MHz Aseasoned operator shouldbe capable todistinguish the Measuring range 1 2to 225 0mm steel abnormal reading practicallyresult from rusting erosive Minimum limit fortube measuring 20 3mm steel recess surface incorrect calibrate sample block the inner Accuracy 1 H 0 1 mm denotesthe measured flaw of material thickness Sound velocity range 1000 to 9999 m s 5 9 Choose andusing coupling agent Measuring sound velocity w
10. hsting spot suspicious area Or using soundinsulation boardcelotex to locatesthe spot indifferent testing angles 5 3 Identify different velocity with vary material Afault reading wouldobtains when measuringthe hard ware with the velocity calibrated by prior material Soa co rrect velocity shouldbe adopted The fault readingmay also result form thedifference betweenthe actual velocity with ill 15 please see forcalibration operations In different material amp situation only one sample block may not satisfyevery calibration The more similarsample block the moreexact reading obtained Ideally referring block is agroup of different thickness andsame material by calibrating to thereferring block theeffect of variation of sound velocity willbe minimized Toget the mostexact me asure a setof referring blockis very important In most situations using one referring block will geta sat isfying measurement This referring block must be the same material with samethickness as theparts to betested The referring block shouldbe read outthe thickness by micrometer When measuring thin material which thicknessclose to the minimum limitrange of thisunit please usea referring block to defineexact limit ofthis material 1 2mmfor steel material Do notmeasuring the materialthat the thickness under the minimum limit When material isa complex alloyin a largesize Ablock that has asimilar thickness withthe material shouldbe selected for c
11. ith a giventhickness Coupling agent serves the high frequencyultrasonic wave measuring 1000 to 9999 m s transmitting between thetransducer to thehardware When the giventhickness over 20mm the accuracyis se incorrect agentor wrong operation man cause erroror 1 when thegiven thickness lessthan 20mm the poor coupling whichlead to failureof measuring The coupl accuracy is 5 ing agent should be used in proper way typiccally a single Operation temperature to 40 C droplet of agentis sufficient Power supply 3 1 5VAAAalkaline batteries It is importantto use propercoupling agent low viscosity Operation current Normaloperation current lt 50mA agent the provided agent machining oil is suitable forsm With Backlight turnon current 120mA ooth surface Forrough veritcal aluminum surface high Stand by current lt 20uA viscosity agent like glycerin and lubrication grease is appli Size 72 146 29mm cable Allkinds of couplingagent is availablein local market Weight 202g you can buyit form localdistributor as well 17 04 l ll the calibrated value 5 4 Abrasion fo the transducer Because the transduceris made ofpropylene long period use will cause the surface oftransducer became morerough which will declinethe sensitivity leadto the wrongreading Please polish the surface with sandpaper or whetstone to assure the smoothnessand parallel Ifthe reading stilluns teady
12. ment However if the rou ghness is too big due tothe rust etc the error measure may happen suchcase please tryto minimize the roughness or select the2 5MHz transducer optionalaccesseries If the transducer is worn out pleasere purchase on thelocal distributor 2 4 Working temperature condition Material thickness andsound velocity will change along with temperature In normalmeasurement environment tempe rature impact can beignored The transducer is made of propylene material considering IN 06 This gauge with the functionto measure the sound veloc ity so the velocity can be obtained before thickness measu rement and then proceed with measurementof thickness 5 Precautions for accuracy 5 1 For verythin material Any ultrasonic thickness gauge when thethickness of the material to bemeasured is lessthan the minimumlimit the fault reading willoccurs Using sample blockcompare method toget a minimumlimit of this material In measuring thethin material anerror may happenthat the reading istwo times asthe actual dimension Another error which displaythe reading much more bigger thanthe actual To prevent the wrong reading by double check out the minimum limitin the thin material 5 2 For stained rusting surface The stained rusting surface on thecontra side willoccurs the ruleless wrongreadings Sometimes asmall stained spot is hardto find out Takecare for measurementwhile measuring the known thr oug
13. nty card Over warranty period any repairing maintenance will ch arge the feeon the buyerin standard rateby local distributor The standardrate is notincluding the accessories which not packing instandard package For example abnormity transducer lengthenlead wire special software We disclaims any liability dueto transportation damages incorrect use oroperation manipulation alterationsor rep air attempts withoutwarranty card invioce 7 2 Non warranty list LCD battery probe sampleblock plastic case coupling agent 20 1 Introduction This ultrasonic thickness gauge isan intelligent handhold product which adopts ultrasonic measuring principle and is controlled by microprocessor provides quick and precise measurement of thickness for most ofindustrial material This unitis widely usedin various precise measurement for different hardware partsin industrial realm one of its important application isto monitor the level of thickness de creasing during operationof various and pressure container Diffusely applied in manufacture fields metal processing and commercial inspection The material that conduct and reflect constant sonicvelocity this product isto be applica ble to used 1 1 Scope ofapplication This unitis suitable formeasuring materials thatare good ultrasonic conductor suchas metal plastic ceramic glass etc as longas the measured part in twoparallel surfaces for measurement ofthickness
14. ot store theunit in highhum idity enviroment 6 6 When thetolerance is overthan stated inthis manual please refer tothe 3 4 5 chapter in this manual 6 7 Please contactus or ourdistributor if thefollowing occurs A Componentbeing destroyed noreadout and enableto measure B AbnormalLCD display The tolerance is toobig in properoperation D Malfunction ofkeypad 6 8 This gauge is aadvanced technology product the repair ing only bytechnician authorized byus do nottry any alter ations or repairattempts 6 Maintenance 6 1 Battery replacement When low battery icon is showed please replace the batteries Press b to turn off B Open thebattery door properly C Replace thelow power batteriesby new batteriesin correct polarity When the gaugeis not usedfor a longtime please take out the batteries 6 2 Protection oftransducer Because the wearface of transduceris propylene mat erial which easyto be scratched During taking measure ment on rough material please usingthe transducer in gentle motion The temperature of the hardware should over60 C otherwise it willcause damage onthe transducer Adhering oil dust on the wear face willspeed up aging of transducer andlead to rupture Clean the lead wire amp transducer after use 6 3 Cleaning thecabinet Do not usesolvent alcohol for cleaning which erode the cabinet amp LCD window brush and sweeponly with a moist cotton clot
15. red unit 07 2 gt Sound velocity adjustment amp revision Press VEL to entre sound velocity adjustment press W to selectyour desired velocity There are 12velocity stored in thisunit If youneed to customizethe sound velocity during the adjustmentpress VEL again to enter velocity revision whilepressing or W torevise the velocity VEL and m s icon will keep blinking Press VEL to confirm andsave the revisedvelocity the unit will goback to normalstatus VEL AL G1 LL HELL m s m s Velocity adjustment Velocity revision 3 2 Calibration Acalibration should be made for everyreplacement transducer or batteries this operation is sufficiently impor tant to assurethe measuring precision If necessary this step should repeated when the accuracyis critical Before calibration put fewprovided coupling agenton the standard sample block to couple the transducer and the sample block Press CAL to enter calibration mode the vertical bar will keep scanning withCAL VEL m sdisplay until the LCD display 4 0mm indicating the calibration is completed After calibration sound velocity will backto your selected value and readyto measure N 08 4 5 Complex shape material For complex shape material measurement pleaserefer to the 4 4 the smallerof the tworeading should thenbe taken as the thickness 4 6 Non parallel surface To get asatisfying ultrasonic response the surface must
16. the transducer shouldbe replaced withnew one 5 5 CAL function CAL calibration is usedto calibrate the unit with the stan dard block onthe panel dopress this keyfor calibration with other materials orwill the wrong measuring will take place 5 6 Multilayer composite material It is impossibleto read outthe thickness ofthe uncoupled multilayer for the ultrasonic wave cannot go throughthe un coupled space Furthermore the sonicwave cannot travel in the composite material at aneven speed soultrasonic reflect principle cannotbe applied for measuring the multil ayer composite material 5 7 Influence fromthe oxidized surface For some metals such as aluminuma layer ofoxide being generated on theirsurface Theoxidized layer combined with the substrate tightly but the sonicwave travel within2 differ ent material which will lead toerror reading the more oxidi zed layer thereading will be more tolerant Please calibrated theunit with thesample block thatpick up along the hardwareto be measured and obtain thethick of 16 1 5 Features e Auto calibrationto assure theaccuracy e Auto linearcompensation this advancedsoftware progr am enhances the precision by correctingthe non linear accuracy of transducer Use 4 and W keysto make aquick adjustment forthe so und velocity thickness anda quick recallto the stored data Coupling status indication Observing the couplingicon to learn if thecoupling is accomplishedor not
Download Pdf Manuals
Related Search