phase II+ UTG-2650 User manual
Model No. UTG-2650
PhaseIIUSA
21IndustrialAve UpperSaddleRiver,NJ.07458USA
P:(201)962‐7373 F:(201)962‐8353
E‐mail:info@phase2plus.com www.phase2plus.com
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Contents
1.Introduction
2.TechnicalSpecifications
3.NamesandFunctionsofVariousPartsforUTG‐2650
4.Operation
4.1Calibration
4.2Measuring
4.3SavingTestResults
4.4ReadingSavedResults
4.5SystemSetting‐ChangeResolutionand/orUnits
4.6MinimumCapture
4.7TwoPointCalibration
5.MethodsofThicknessMeasurements
5.1Measuringplanarsurface
5.1.1Generalmethods
5.1.2Methodofprecisionmeasurement
5.1.3Methodofcontinuousmeasurements
5.2Methodsformeasuringpipewalls
6.Maintenance
7.SpecialApplications&CouplantGels
8.StandardPackageContents
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1. Introduction
The UTG‐2650 is a simple to use, highly accurate, hand‐held Ultrasonic Thickness Gauge with the
ability to measure ultra‐thin materials in super high resolution.Utilizingit’sstateoftheart
microprocessor and ultrasonic technology the 2650 offers you many outstanding features such as
quickscanandextendedmemory.Itfeaturesreliableandstablereadings,standardordualelement
measuringmodes,convenientdatadisplay(inbothmillimetersand inches),highresolution.0001”
(0.001mm), ease of operation, low power consumption(two AA batteries). These features make
UTG‐2650unequalledinitsperformanceaswellasitsvalue!
2. TechnicalSpecifications
● Measuringrange:(Steel)
IEStandardMode:0.059”–7.87”(1.5‐18mm)
EEHighPrecisionMode:0.012”–0.394” (0.30mm–10.0mm)
●Accuracy:+/‐0.0002”(ifthicknessisbelow3mm)
+/‐0.002”(ifthicknessisbelow20mm)
●DisplayResolution:.Selectable
0.01”,0.001”,0.0001” (0.1,0.01,0.001mm)
●Memorycapacity:500testvalues
●Measuringfrequency:4MHz(Normalmode)upto25MHz.
●Soundvelocityrange:0.0394–0.3936in/min(1,000‐9,999m/s)
●DisplayLCD:42x57mmwithBacklightandadjustablecontrast.Fontsizeupto.054”
●OperatingTemp:‐10º‐+50ºC
●Battery:Two1.5VAAbatteries
●Dimensions:5.86”x2.87”x1.25”(149mm×73mm×32mm)
●Therelativehumidity:<90%
●Weight:5.6oz(200g)(unitonly)
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3. Names and Functions for UTG-2650
● Power on/Reset key ON/RST –to turn on or reset the tester. When the tester is turned on, LCD will display the
value of sound velocity used for the last measurement. The gauge will shut off automatically if idle for 4
minutes.
● Menu key MENU- to setup the tester .Press this key to move highlighted item to the following
menus-Save(N=1,2,3,4 or 5),Menu, EE, OFF.
● Enter key to accept the job selected by . If Off is highlighted by pressing MENU , hit to switch off
the gauge .Pressing MENU twice will send the gage back to main operation.
● Calibration key CAL – to calibrate the tester with built-in block on the unit.
● Operating key and
● Sound Velocity key VEL –to set the value of sound velocity to be used .Press to move on LCD toward
the digit to be changed and use operating key and to get the value.
5900
Up to five sound velocity values can be pre-stored by pressing VEL key when the value is set. Press VEL key
in sequence during the measurement will load the values saved in the tester .
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4.Operation
4.1Calibration
Set the sound velocity to be 0.232”(5900m/s) .Put a pea sized drop of couplant gel on calibration block built-in on
the gauge. Press the probe on the face of the block to obtain measurement .LCD screen will display a value. Lift
the probe off the block. Then press the up and down arrows to adjust the value on the display to match
0.157”(4.00mm). You may need to press the Back Arrow button to move the cursor from column to column. Once
the value of 0.157” has been obtained, press the CAL button to save the calibration. Now place the probe back on
the block to verify the reading. If value doesn’t not show 0.157” or 4.00mm, repeat above steps to get correct
reading.
Verification should be carried out every time the unit is turned on. This should be done on either the built-in test
block or a swatch of your own material with a known thickness value.
4.2 Measuring
Put a small drop of couplant gel on the work-piece, then place the probe on the surface of your sample. The
thickness value will display on LCD screen in either mm or inch. The gauge shows the measuring result whenever
the probe is coupled with the work-piece for longer than 2 seconds with couplant gel.
4.3 Saving Test Results
Test results can be saved into 5 individual files. Each file holds up to 100 values.
To save test results, highlight SaveN by pressing MENU press to change N to required number. Press
MENU when the file number N is set. The gauge is now ready to save measuring data to the file numbered above.
During measurement, press MEM to save the reading to SaveN file. A flash mark of “Memory” will seen on
LCD if the value is successfully saved.
4.4 Reading Saved Results
To read saved results from the tester ,highlight SaveN by pressing MENU, press to change N to required
number ,Press MEM to open the file ,”NO” points to current result ,”Total” is the number of the readings in
“SaveN” file .Press will delete the current result from the file .Use and keys to display the other results in
this file.
4.5System Setting-Change Resolution and/or Units
Press MENU until MENU is highlighted ,press to enter system setting. Use operating key and/or to
select the function and press to adjust the setting accordingly.
To change display resolution for the tester, enter “System Setup” and choose ‘HIGH” or 0.0001” or “MID”
0.001” (0.01mm) or LOW 0.01” for the display resolution. This setting can be seen on LCD with “HIGH” or
“MID” or “LOW”.
Switch between “Metric” and “Imperial” units can be done through Menu→System Setup→Units→Press
Press MENU key or perform measurement to return to the main operation, after system setting.
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4.6 Minimum Capture (Scan Feature)
If this function is set to “ON” from system setting, it is ready to capture minimum reading in the measurement.
LCD will show the current thickness while the probe is coupled with the sample .as soon as you release the probe
from your part, the LCD displays the minimum reading and “MIN” will flash six times. Measuring during the
flashing will send the results into the capture array to get the minimum reading.
4.7 Two Point Calibration
Use two calibration samples with their known thicknesses, which are better or close to the upper and lower limits
of measuring range respectively. Turn on 2-point calibration function from system setting (section 4.6) and turn
off “Min Capture”. press CAL While checking the thickness of the thinner sample, ”Thin” will be seen on the
LCD along with the thickness result. Use and keys to change the reading to the thickness of thinner
sample .Press CA L to finish the first point calibration. Press CAL and to repeat the above steps for the
second(thicker)sample.
5 Methods of Thickness Measurement
5.1.Measuring planar surface
5.1.1.General methods
a) Single measurement method
This method involves measuring the thickness at a single point.
b) Double measurement method
This method involves performing two thickness measurements near a single spot using a dual sensor probe rotated
from 0°to 90°respectively, with respect to the split face (Fig.1).Take the smaller of the two indicated values
as the thickness of the material.
Fig1
c) Multiple point measurements within a circle of φ=1.18” (30mm). This method involves performing a number
of measurements within a circle having a maximum diameter of about 1.18” (30mm)(fig.2). Take the minimum
indicated value as the thickness of the material.
Fig.2
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5.1.2Method of Precision Measurement
This method involves increasing the number of measurement spots around a certain measurement point and
expressing the thickness fluctuation in terms of isothickness contour lines, fig.3.
Fig. 3
Fig 3.
5.1.3Method of continuous measurements
Fig.4
As in fig.4, this method involves taking continuous measurements along a specified line according to the single
measurement method, at intervals of 5mm or less.
Your application will dictate which is the most effective method to use. If unsure of best method, the double
measurement method should be employed in combination with one of other methods. Taking into account the
corrosion condition of the material
5.2 Methods for measuring pipe walls
The thickness of a pipe or round object can be measured accurately with this instrument. The measurement range
is shown in Table
5.1．
Table5.1
Probe type Pipe diameter inch
(mm)
Thickness Inch (mm)
Pt-08,10 and 12 ≥φ1.0” (25mm) ≥ 0.04”(1.2mm)
Fig.5 5 Pipe sample
IMPORTANT! the Split-plane of the probe may be along the pipe axis or perpendicular to it as shown in Fig.5.For
small pipes, measurement should be made in both directions (moving probe a little bit ),the smaller displaying
value should be taken as the thickness value.
For large pipes, measure the thickness of the wall along the direction perpendicular to the pipe axis, fig.6and 7.
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Fig.6 Pipe sample Fig.7 Bottom view of probe
6.Maintenance
Be sure to clean the probe and cable after each use. Grease, oil and dust will cause the cable of the
probe to dry out and shorten life expectancy.
If the unit is not to be used for a long period of time, remove the batteries to avoid battery leakage
and corrosion of the battery contacts.
Avoid storing the unit in a damp or extremely hot environment.
● DO NOT OPEN INSTRUMENT! This will automatically void your warranty.
7) Special Applications & Couplant Gel notes:
Measuring hot surfaces
The velocity of sound through a substance is dependant upon its temperature. As materials heat up, the velocity
of sound through them decreases. In most applications with surface temperatures less than about 100°, no special
procedures must be observed. At temperatures above this point, the change in sound velocity of the material being
measured starts to have a noticeable effect upon ultrasonic measurement. At such elevated temperatures, it is
recommended that the user perform a calibration procedure on a sample piece of known thickness, which is at or
near the temperature of the material to be measured. This will allow the gauge to correctly calculate the velocity
of sound through the hot material.
When performing measurements on hot surfaces, it may also be necessary to use a specially constructed
high-temperature transducer. These transducers are built using materials which can withstand high temperatures.
Even so, it is recommended that the probe be left in contact with the surface for as short a time as needed to
acquire a stable measurement. While the transducer is in contact with a hot surface, it will begin to heat up, and
through thermal expansion and other effects, may begin to adversely affect the accuracy of measurements.
Measuring laminated materials.
Laminated materials are unique in that their density (and therefore sound-velocity) may vary considerably
from one piece to another. Some laminated materials may even exhibit noticeable changes in sound-velocity
across a single surface. The only way to reliably measure such materials is by performing a calibration procedure
on a sample piece of known thickness. Ideally, this sample material should be a part of the same piece being
measured, or at least from the same lamination batch. By calibrating to each test piece individually, the effects of
variation of sound-velocity will be minimized.
An additional important consideration when measuring laminates, is that any included air gaps or pockets will
cause an early reflection of the ultrasound beam. This effect will be noticed as a sudden decrease in thickness in
an otherwise regular surface. While this may impede accurate measurement of total material thickness, it does
provide the user with positive indication of air gaps in the laminate.
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Suitability of materials
Ultrasonic thickness measurements rely on passing a sound wave through the material being measured. Not all
materials are good at transmitting sound. Ultrasonic thickness measurement is practical in a wide variety of
materials including metals, plastics, and glass. Materials that are difficult include some cast materials, concrete,
wood, fiberglass, and some rubber.
Couplant Gels
All ultrasonic applications require some medium to couple the sound from the transducer to the test piece.
Typically a high viscosity liquid is used as the medium. The sound used in ultrasonic thickness measurement does
not travel through air efficiently.
A wide variety of couplant materials may be used in ultrasonic gauging. Propylene glycol is suitable for most
applications. In difficult applications where maximum transfer of sound energy is required, glycerin is
recommended. However, on some metals glycerin can promote corrosion by means of water absorption and thus
may be undesirable.
Other suitable couplants for measurements at normal temperatures may include water, various oils and
greases, gels, and silicone fluids. Measurements at elevated temperatures will require specially formulated high
temperature couplants.
Inherent in ultrasonic thickness measurement is the possibility that the instrument will use the second rather
than the first echo from the back surface of the material being measured while in standard pulse-echo mode. This
may result in a thickness reading that is TWICE what it should be. The Responsibility for proper use of the
instrument and recognition of these types of phenomenon rests solely with the user of the instrument.
8.Standard Package Contents
Items Qty
UTG-2650(main gauge unit) 1
Probe 1
Coupling gel 1
Operation Manual 1
Alkaline Battery(size AA) 2
Carry case 1
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Sound Velocity Chart: All velocities are approximations:
Material Sound Velocity
Inch/µS M/s
Air 0.013 330
Aluminum 0.250 6300
Alumina Oxide 0.390 9900
Beryllium 0.510 12900
Boron Carbide 0.430 11000
Brass 0.170 4300
Cadmium 0.110 2800
Copper 0.180 4700
Glass(crown) 0.210 5300
Glycerin 0.075 1900
Gold 0.130 3200
Ice 0.160 4000
Inconel 0.220 5700
Iron 0.230 5900
Iron (cast) 0.180 4600
Lead 0.085 2200
Magnesium 0.230 5800
Mercury 0.057 1400
Molybdenum 0.250 6300
Monel 0.210 5400
Neoprene 0.063 1600
Nickel 0.220 5600
Nylon, 6.6 0.100 2600
Oil (SAE 30) 0.067 1700
Platinum 0.130 3300
Plexiglass 0.110 1700
Polyethylene 0.070 1900
Polystyrene 0.0930 2400
Polyurethane 0.0700 1900
Quartz 0.230 5800
Rubber, Butyl 0.070 1800
Silver 0.140 3600
Steel, Mild 0.233 5900
Steel, Stainless 0.230 5800
Teflon 0.060 1400
Tin 0.130 3300
Titanium 0.240 6100
Tungsten 0.200 5200
Uranium 0.130 3400
Water 0.584 1480
Zinc 0.170 4200
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MainHeadquarters:U.S.A
PhaseIIMachine&Tool,Inc.
21IndustrialAve
UpperSaddleRiver,NJ.07458 USA
Tel:(201)962‐7373
Fax:(201)962‐8353
GeneralE‐Mail:info@phase2plus.com
BEIJING,CHINA
PhaseIIMeasuringInstruments(Beijing)Ltd.
Room301,Bldg2 QingYuanXiLi,HaidianDistrict,Beijing100192,China
Tel:+86‐10‐59792409
Fax:+86‐10‐59814851
GeneralE‐mail:[email protected]
MEXICO
PhaseIIdeMexico
CalleANo.4PromerPiso
Col.SanMarcosAzcapotzalco
C.P02020Mexico
Tel:011‐525‐5538‐39771
Fax:same
GeneralE‐mail:phase2mexico@hotmail.com
VENEZUELA
PhaseIIHerramientasUniversalesEDCM.CA.
Av.FranciscoLazoMartiCC
PlazaSantaMonicaPBLocal
SantaMonica,Caracas1040Venezuela Tel:212‐690‐28‐21
Fax:212‐693‐29‐16E‐mail:edcphm@movistar.net
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