Product Description

Elcometer MTG8 Ultrasonic Material Thickness Gauge

With a choice of calibration options, measurement modes – including high speed scan mode, display options and data-logging, the Elcometer MTG8 Ultrasonic Material Thickness Gauge is ideal for taking readings on a wide range of coated and uncoated materials and downloading data for further analysis and reporting.

The Elcometer MTG8 Ultrasonic Material Thickness Gauge is the top of the range gauge with all the features and functionality necessary for measuring material thickness and velocity on virtually any material and for a wide range of applications.

As well as all the features of the MTG2, MTG4 and MTG6, the MTG8 allows users to store into memory up to three calibrations. Once saved the user can select a calibration memory without the need to re-calibrate the gauge, ideal for users who are measuring a variety of materials or thicknesses. Using the gauge’s alpha-numeric function, calibration memories can be re-named to suit the calibration setting.

The Elcometer MTG8 Ultrasonic Material Thickness Gauge has user definable upper and lower limits with audible and visual pass/fail warnings. Limits can be set for individual readings or for each batch. If a measurement is taken which falls outside set limits, the reading value and the limit icon turn red, the red LED flashes and the alarm beeps providing immediate indication of problem areas.

The Elcometer MTG8 Ultrasonic Material Thickness Gauge has Differential Mode; once a user defined nominal thickness value is 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.

The Elcometer MTG8 Ultrasonic Material Thickness Gauge is the only gauge in the range to offer B-Scan, a time based, cross sectional 2D block, graphical view of the material under test, ideal for relative depth analysis. The zoom of the B-Scan reading can be set automatically or can be defined by the user to focus on areas of interest.

The Elcometer MTG8 Ultrasonic Material Thickness Gauge can store 100,000 readings in up to 1,000 sequential or grid type batches. Using grid batching, readings are taken and stored in a grid, a template of the measurement area and where each reading is to be taken. If for any reason a reading cannot be taken in a particular location, due to a steel girder for example, the obstruction feature (Obst), allows the user to record this within the batch data.

Compatible with both ElcoMaster® Data Management Software and ElcoMaster® Mobile Apps, readings can be downloaded via USB or Bluetooth® to PC, iOS or Android™ devices for further analysis and reporting.

Features of the Elcometer MTG8 Ultrasonic Material Thickness Gauge

  • Pulsed-Echo (P-E), Echo-Echo ThruPaint™ & Velocity (VM) measurement modes
  • 2-Point, 1-Point, Material, Velocity, Thickness Set and Factory calibration options
  • Three user programmable calibration memories
  • User selectable measurement rate; 4, 8, 16 readings per second
  • User selectable reading resolution; 0.1mm or 0.01mm
  • Scan Mode
  • Readings, Selected Statistics, Bar Graph, Run Chart, B-Scan & Differential Mode
  • Gauge memory; stores 100,000 readings in up to 1,000 sequential or grid batches
  • User definable upper and lower limits with audible & visual pass/fail warnings
  • USB and Bluetooth® data output to ElcoMaster™ and ElcoMaster™ Mobile Apps

Echo-Echo ThruPaintTM (E-E) measurement mode enables readings to be taken on coated materials with a thickness range up to 25mm. In Echo- Echo ThruPaint™ mode, the coating thickness is ignored and the material thickness from the top surface of the material to the material density boundary is displayed. For further information on measurement modes, see the separate leaflet.

Compatible with ElcoMaster® software, individual readings can be downloaded via USB to PC or similar device for further analysis.

The Elcometer MTG8 Ultrasonic Material Thickness Gauge conforms to the following standards :

  • ASTM E797
  • EN 14127
  • EN15317

 

Elcometer MTG8 Ultrasonic Material Thickness Gauge Taking a reading

Elcometer MTG8 Ultrasonic Material Thickness Gauge Taking a reading - display

Easy

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

Accurate

With a measurement accuracy of ±1% up to 500mm in Pulsed-Echo (P-E) mode and 25mm in Echo-Echo ThruPaint™ (E-E) mode, 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.

Efficient

The MTG4 has a set measurement repetition rate of 4Hz (4 readings per second).

Rugged

With 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.

 

Elcometer MTG8 Ultrasonic Material Thickness Gauge Display The Display

All 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) and Velocity mode (for more information on measurement modes, see page 19). 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.

Elcometer MTG8 Ultrasonic Material Thickness Gauge On Screen Statistics On Screen Statistics

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

Elcometer MTG8 Ultrasonic Material Thickness Gauge Run Chart 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.

Elcometer MTG8 Ultrasonic Material Thickness Gauge B-Scan Reading B-Scan Reading

A time based, cross sectional 2D block, graphical view of the material under test, ideal for relative depth analysis. The zoom of the B-Scan reading can be set automatically or can be defined by the user to focus on areas of interest.

Elcometer MTG8 Ultrasonic Material Thickness Gauge Sequential or Grid Batching Sequential or Grid Batching

Individual 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 with the batch. The obstruction feature (Obst)*, allows the user to record areas where measurements could not be taken.

Elcometer MTG8 Ultrasonic Material Thickness Gauge Scan Mode Scan Mode

When 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 and any user defined limits, with audible and visual warnings if any readings fall outside 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.

Elcometer MTG8 Ultrasonic Material Thickness Gauge Differential Mode Differential Mode

Once 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.

Elcometer MTG8 Ultrasonic Material Thickness Gauge Velocity Mode VM 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.

 

Specifications

Elcometer MTG8 Ultrasonic Material Thickness Gauge – Specifications

MTG8
Easy to use menu structure in multiple languages
Tough, impact, waterproof and dust resistant
equivalent to IP54
Bright colour screen with permanent backlight
Scratch and solvent resistant display; 2.4″ (6cm) TFT
Large positive feedback buttons
USB power supply via PC
Low battery indicator
Ambient light sensor, with adjustable brightness
Emergency light
Tap awake from sleep
Gauge software updates1 via ElcoMaster TM Software
2 year gauge warranty2
Limits: user definable audible & visual pass/fail warnings
Measurement Mode
Pulsed Echo (P-E)
Echo-Echo ThruPaintTM (E-E)
Velocity Mode (VM)
Measurement Rate
4, 8, 16Hz 4, 8, 16Hz3
Thickness Range4
P-E: 0.63-500mm
E-E: 2.54 – 25.40mm
Velocity Range 1250 – 10,000m/s
Measurement Accuracy5 ±1% or ±0.05mm
Measurement Units (selectable) mm or m/s
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; ie 0.1mm, 10m/s
Hi; ie 0.01mm, 1m/s
On Screen Statistics
Number of readings n; mean average ẋ;
standard deviation σ
Lowest reading Lo; Highest reading Hi
Low limit value
High limit value
Number of readings below low limit
Number of readings above high limit
Nominal Value x
Range
Calibration Options
Zero set: using the integral zero disc
1 – point
2 – point
Material selection; present choice of 39 materials
Factory; resets to the factory calibration
Velocity (speed of sound)
Known thickness value
Calibration lock: with optional PIN code unlock 
Test calibration feature 
Calibration memories: 3 – programmable memories
Measurement outside calibration warning
Data Logging
Number of readings 100,000
Number of batches 1,000
Reading save function
Sequential batching; a listed-based storage of readings
Grid batching; reading storage in a 2 dimensional array
Fixed batch size mode; with batch linking
Obstruct entry; add ‘obstruct’ label into grid location
Delete last reading
Date & time stamp
Review, clear & delete batches
Alpha numeric batch names; user definable
Copy batches and calibration settings
Live reading trend graph in batching mode
Batch review graph
Data Output
USB; to computer
Bluetooth® to computer, AndroidTM & iOS devices
ElcoMaster™ software 
Transducer Probe Type Dual element
Auto transducer recognition    
Auto V-path correction   
Battery Type 2 x AA
Battery Life (approximate) Approx 15 hours continuous use at 1 reading per second
Operating Temperature -10 to 50°C
Size (w x h x d) 145 x 73 x 37mm
Weight (including batteries, without transducer) 210g
Part Number (with Transducer)6 MTG8BDL-TXC
Part Number (gauge only) MTG8BDL

1 Internet connection required
2 The Elcometer MTG range is extendable within 60 days from date of purchase, free of charge to two years via www.elcometer.com
3 User selectable default setting in scan mode is 16 Hz
4 Dependent on the material being measured and the transducer being used
5 Whichever is the greater
6 5MHz 1/4″ right angle transducer supplied

Elcometer MTG8 Ultrasonic Material Thickness Gauge Packing List

  • Elcometer MTG8BDL
  • 5MHz 1/4″ right angle transducer
  • couplant
  • wrist harness
  • 3 x screen protector
  • protective case
  • plastic transit case
  • 2 x AA batteries
  • calibration certificate
  • USB cable
  • ElcoMaster™ Software
  • operating instructions

Data Sheet

Elcometer MTG8 Ultrasonic Material Thickness Gauge – Data Sheet

Elcometer MTG8 Ultrasonic Material Thickness Gauge Data Sheet

Standards

Elcometer MTG8 Ultrasonic Material Thickness Gauge – Standards

The Elcometer MTG8 Material Thickness Gauge conforms to the following standards :

  • ASTM E797
  • EN 14127
  • EN15317

Transducers

Elcometer MTG8 Ultrasonic Material Thickness Gauge – Transducers

Suitable for measuring Suitable for
Part Number Probe Diameter Probe Configuration Damping1 ThruPaint™ Potted right angle 2 Cast Iron Plastics Thin Plastics Fibreglass Thin Fibreglass Steel Glass Aluminium Titanium MTG2 MTG4 MTG6 MTG8 Calibration Certificate
1.00 MHz Dual Element Thickness Transducer
TXC1M00EP-2 1/2″ Right Angle S
2.25 MHz Dual Element Thickness Transducer
TXC2M25CP-2 1/4″ Right Angle S
TXC2M25EP-2 1/2″ Right Angle S
3.50 MHz Dual Element Thickness Transducer
TXC3M50EP-1 1/2″ Right Angle CT,HD
5.00 MHz Dual Element Thickness Transducer
TXC5M00BP-4 3/16″ Right Angle CT,HD
TXC5M00CP-4 1/4″ Right Angle S
TXC5M00CP-6 1/4″ Right Angle CT,HD
TXC5M00CP-8 1/4″ Hi Temp HD
TXC5M00EP-3 1/2″ Right Angle S
TXC5M00EP-4 1/2″ Right Angle CT,HD
7.50 MHz Dual Element Thickness Transducer
TXC7M50BP-3 3/16″ Right Angle CT,HD
TXC7M50CP-4 1/4″ Right Angle S
TXC7M50CP-5 1/4″ Right Angle CT,HD
10.00 MHz Dual Element Thickness Transducer
TXC10M0BP-1 3/16″ Right Angle S
TXC10M0CP-4 1/4″ Right Angle S

 

Accessories

Elcometer MTG8 Ultrasonic Material Thickness Gauge – Accessories

Part Number  Description  Nominal  Nominal Thicknesses
Calibration Standard Sets Thickness
Range
T920CALSTD-SET1 Calibration Standard Set 2-30mm 2, 5, 10, 15, 20, 25 & 30mm
T920CALSTD-SET2 Calibration Standard Set 40-100mm 40, 50, 60, 70, 80, 90 & 100mm
T920CALSTD-HLD Calibration Holder; for thicknesses up to 100mm
Both sets come complete with holder and calibration certificate.
Part Number    Nominal
Individual Calibration Standards Thickness
mm
T920CALSTD-2 2
T920CALSTD-5 5
T920CALSTD-10 10
T920CALSTD-15 15
T920CALSTD-20 20
T920CALSTD-25 25
T920CALSTD-30 30
T920CALSTD-40 40
T920CALSTD-50 50
T920CALSTD-60 60
T920CALSTD-70 70
T920CALSTD-80 80
T920CALSTD-90 90
T920CALSTD-100 100
Part Number  Description  Volume
T92015701 Ultrasonic Couplant 120ml
T92024034-7 Ultrasonic Couplant 300ml
T92024034-8 Ultrasonic Couplant 500ml
T92024034-3 Ultrasonic Couplant 3.8l
T92024034-9 High Temperature Couplant 60ml
Transducer Adaptor
These adaptors allow single & dual element, ‘non-intelligent’ and other transducers
with lemo connectors from Elcometer NDT and other manufacturers,
 to be used with the MTG & PTG product range.
Part Number Description
T92024911 Dual Element2 Transducer Adaptor

2 This adaptor allows dual element, ‘non-intelligent’ and other transducers with Lemo Connectors from Elcometer and other manufacturers to be used with the MTG product range.

Instruction Manual

Elcometer MTG8 Ultrasonic Material Thickness Gauge – Instruction Manual

Elcometer MTG8 Ultrasonic Material Thickness Gauge Instruction Manual