Materials Testing
 
    Ultrasonic Thickness Gauges

Ultrasonic Thickness Gauges

ASTM E797, EN 14127, EN15317



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Model MTG8 with 5Mhz THRU-PAINT mode. *Ultrasonic coupler bottle required : 35.00$/ 8 oz

Ergonomic, rugged, accurate and easy to use.

The Elcometer NDT MTG range of ultrasonic Material and Precision thickness gauges is ideal for measuring and recording material thickness from just 0.2mm (0.008") to 500mm (20").

Features

  • Easy to use menu structure in multiple languages 
  • Tough, impact, waterproof and dust resistant equivalent to IP54
  • Bright colour screen with permanent backlight 
  • Ambient light sensor, with adjustable brightness 
  • Scratch and solvent resistant display; 2.4" (6cm) TFT 
  • Large positive feedback buttons 
  • USB power supply via PC
  • Gauge software updates via ElcoMaster® Software(Internet connection required) 
  • 2 year gauge warranty


Easy

The MTG range of ultrasonic thickness gauges has been designed specifically to make them easy to use, calibrate, take readings and create inspection reports.

AccurateThe MTG range has a measurement accuracy of up to ±1% across their full range. Accurate and repeatable readings can be taken on smooth, rough and curved, coated or uncoated surfaces. The stability indicator provides a visual indication of both the strength and reliability of the ultrasonic signal.
EfficientWhilst the MTG2 and MTG4 have a set measurement repetition rate of 4Hz (4 readings per second),the MTG6 & MTG8 have user selectable measurement rates of 4, 8 and 16 Hz (4, 8 or 16 readings per second).
PowerfulThe MTG6 & MTG8 have data-logging functionality. The MTG6 can store up to 1,500 readings in a single batch whilst the MTG8 store up to 100,000 readings in up to 1,000 sequential or grid type batches, with alpha-numeric batch naming. Compatible with ElcoMaster® and ElcoMaster® Mobile App, data can be downloaded via USB or Bluetooth® direct to PC, iOS* or Android™ mobile devices for instant report generation.
RuggedWith a scratch and solvent resistant display, sealed, heavy duty and impact resistant design - dust and waterproof equivalent to IP54 - the MTG range is suitable for use in the harshest of environments.

 

        

Measurement modes explained

The Elcometer NDT MTG range has a number of measurement modes available to help the user establish the most accurate thickness value. The modes available vary between models but normally increase as the model number increases.

Pulsed - Echo Mode (P-E)Ideal for pit and flaw detection, the total thickness from the base of the
transducer to the material density boundary (typically the back wall) is
measured.
Echo - Echo Mode (E-E)Ideal for measuring thinner materials between 0.15-10.15mm
(0.006 - 0.4") thick, Echo-Echo mode measures from the top surface to
the material density boundary ( typically the back wall).
Echo - Echo ThruPaint™ Mode (E-E) Sometimes known as ThruPaint™ mode, the coating thickness is ignored
and the material thickness from the top surface of the material to the
material density boundary (typically the back wall) is measured. To use
Echo-Echo ThruPaint™ mode, a high damped, coating thickness transducer is
required
Interface Echo (I-E)A highly accurate measurement mode, Interface Echo displays the total
thickness from the top surface to the material density boundary
Plastic Mode (PLAS)A mode specifically used for measuring very thin plastics. A special graphite
delay line accessory is required for this mode.
Velocity Mode (VM)Velocity mode measures the speed of sound of materials and is ideal for
determining the homogeneity of a material/alloy and the correct velocity of a
material for calibration.

Displays explained

The Elcometer NDT MTG range has a choice of measurement modes allowing the user to select the most appropriate for their application. The modes available vary between models but normally increase as the model number increases.

The DisplayAll gauges have a fully customisable, scratch and solvent resistant colour LCD display. Measurement modes available include Pulsed-Echo (P-E), Echo-Echo ThruPaint™ (E-E),Interface Echo (I-E),Plastic Mode (PLAS) and Velocity mode (VM) (for more information on measurement modes, see page 3). A choice of measurement units are available, depending on the measurement mode selected. A stability indicator shows clearly both the strength and reliability of the ultrasonic signal.
Scan ModeWhen enabled, users can slide the transducer over a large surface area whilst the gauge takes readings at a rate of 16 Hz (16 readings per second). During each scan, the live thickness is displayed together with an analogue bar graph showing the thickness relative to the set nominal value and any user defined limits, with audible and visual warnings if any readings fall outside the set limits. When the transducer is lifted off the surface, the average, lowest and highest thickness value is displayed making scan mode ideal for checking a sample’s overall uniformity.
Run Chart

A trend graph of the last 20 readings, showing the variation in material thickness over the test area. The graph is updated automatically as each reading is taken and any readings outside the set and enabled limits are displayed in red thus allowing the user to easily identify areas where corrosion may be present or the material is too thick for purpose.

On Screen StatisticsUp to 8 statistical values can be displayed from a choice of number of readings (n) , lowest, highest and average reading (Lo, Hi, x),standard deviation (σ),low and high limit values, nominal value and range.

Velocity ModeVelocity mode measures the speed of sound of materials and is ideal for determining the homogeneity of a material/alloy and the correct velocity of a material for calibration.
Sequential or Grid BatchingIndividual readings can be stored in up to 1,000 sequential or grid type,alpha-numeric batches, together with date and time stamp and reading location*. Users have the option to view batch readings, statistics and a graph of all readings stored within the batch. The obstruction feature (Obst)*,allows the user to record areas where measurements could not be taken.
B-Scan ReadingA time based, cross sectional 2 dimensional B-Scan provides a graphical view of the material under test, ideal for relative depth analysis. The zoom of the B-Scan reading can either be set to automatic or can be defined by the user to focus on areas of interest.
Differential ModeOnce a user defined nominal thickness value has been set, the gauge displays the measured thickness together with the variation from the set nominal value thus indicating areas of the material which are thinner or thicker than expected.
Bar GraphAn analogue representation of the current measurement value together with the highest (Hi),lowest (Lo) and average (x) reading. The graph is updated automatically when each reading is taken.
Plastic ModePlastic mode is specifically designed for measuring very thin plastics.

 

Model NumberMTG2MTG4MTG6MTG8
Part Number (with transducer)1MTG2-TXCMTG4-TXCMTG6DL-TXCMTG8BDL-TXC
Part Number (gauge only) MTG4MTG6DLMTG8BDL
Limits: 40 definable audible & visual pass/fail warnings   
Measurement Rate4Hz4Hz4, 8, 16Hz24, 8, 16Hz2
Measurement ModeRange3Accuracy4    
Pulsed Echo (P-E)0.63-500mm (0.025-20”)±0.1mm (0.63-19.99mm)
±0.5% (20.00-500.00mm)
±0.004” (0.025-0.787”)
±0.5% (0.788-20.00”)
  
Pulsed Echo (P-E)0.63-500mm (0.025-20”)±0.05mm (0.63-9.99mm)
±0.5% (10.00-500.00mm)
±0.004” (0.025-0.393”)
±0.5% (0.394-20.00”)
  
Echo Echo ThruPaint (E-E)2.54-20.00mm
(0.100-0.787”)
±0.1mm
(2.54-20.00mm)
±0.004”
(0.100-0.787”)
   
Echo Echo ThruPaint (E-E)2.54-20.00mm
(0.100-0.787”)
±0.05mm (2.54-9.99mm)
±0.5% (10.00-20.00mm)
±0.004” (0.100-0.393”)
±0.5% (0.394-0.787”)
  
Velocity Mode (VM)1,250-10,000m/s (0.0492-0.3937in/µs)  
Measurement Units    
mm or inches
m/s, inch/µs  
Repeatability / Stability Indicator
Display Mode    
Reading
Selected statistics  
Scan thickness bar graph  
Run Chart  
Readings and Differential   
B-Scan cross sectional display   
Selectable Reading Resolution    
Lo; 0.1mm, 0.01 Inch, 10m/s, or 0.001 in/μs
Hi; 0.01mm, 0.001 Inch, 1m/s, or 0.0001 in/μs  
Statistics    
Number of readings,n; Mean average, x¯ ;
Standard deviation, σ.
  
Lowest reading, Lo; Highest reading, Hi  
Low / high limit value   
Reading Range Value   
Nominal Value   
Number of readings below low limit   
Number of readings above high limit   
Calibration Options    
Zero (using the integral zero disc)
1 - point 
2 - point  
Material selection; 39 preset materials 
Factory; resets to the factory calibration 
Velocity (speed of sound)  
Known thickness value  
Calibration Features    
Calibration lock; with optional PIN Lock  
Test calibration feature  
Calibration memories: 3 programmable memories   
Measurement outside calibration warning   
Data Logging    
Number of readings  1,500100,000
Number of batches  11,000
Sequential batching  
Grid batching   
Fixed batch size mode; with batch linking   
Obstruct entry; add 'obst' into grid location   
Delete last reading  
Date & time stamp  
Review, clear & delete batches  
Alpha numeric batch names; user definable   
Batch review graph   
Data Output    
USB to PC
Bluetooth® to PC, Android& iOS devices  
ElcoMaster® software  
Transducer Probe Type    
Dual Element
Auto Transducer Recognition
Auto V-path Correction
Battery Type52 x AA2 x AA2 x AA2 x AA
Battery Life5Alkaline: 15 hours  Lithium: 28 hours
Operating Temperature -10 to 50° (14 to 122°F)
Size (w x h x d) 145 x 73 x 37mm (5.7 x 2.84 x 1.46")
Gauge Weight (including batteries)210g (7.4oz)210g (7.4oz)210g (7.4oz)210g (7.4oz)
 

1 MTG supplied with 5MHz 1/4" right angle transducer

2User selectable default setting in scan mode is 16Hz

3Dependent on the material being measured and the transducer being used

4On steel

5Supplied with Alkaline, Lithium and rechargeable can be used with the gauges, continuous use at 1 reading per second