|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
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 :
The MTG range of ultrasonic thickness gauges have been designed specifically to make them easy to use, calibrate, take readings and create inspection reports.
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.
The MTG4 has a set measurement repetition rate of 4Hz (4 readings per second).
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.
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.
|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.
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.
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.
|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.
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.
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.
|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.
Elcometer MTG8 Ultrasonic Material Thickness Gauge – Specifications
|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||●|
|Tap awake from sleep||●|
|Gauge software updates1 via ElcoMaster TM Software||●|
|2 year gauge warranty2||●|
|Limits: user definable audible & visual pass/fail warnings||●|
|Pulsed Echo (P-E)||●|
|Echo-Echo ThruPaintTM (E-E)||●|
|Velocity Mode (VM)||●|
|4, 8, 16Hz||4, 8, 16Hz3|
|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||●|
|Scan thickness bar graph||●|
|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||●|
|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||●|
|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||●|
|USB; to computer||●|
|Bluetooth® to computer, AndroidTM & iOS devices||●|
|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
- wrist harness
- 3 x screen protector
- protective case
- plastic transit case
- 2 x AA batteries
- calibration certificate
- USB cable
- ElcoMaster™ Software
- operating instructions
Elcometer MTG8 Ultrasonic Material Thickness Gauge – Data Sheet
Elcometer MTG8 Ultrasonic Material Thickness Gauge – Standards
The Elcometer MTG8 Material Thickness Gauge conforms to the following standards :
- ASTM E797
- EN 14127
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||Fibre
|1.00 MHz Dual Element Thickness Transducer|
|2.25 MHz Dual Element Thickness Transducer|
|3.50 MHz Dual Element Thickness Transducer|
|5.00 MHz Dual Element Thickness Transducer|
|7.50 MHz Dual Element Thickness Transducer|
|10.00 MHz Dual Element Thickness Transducer|
Elcometer MTG8 Ultrasonic Material Thickness Gauge – Accessories
|Part Number||Description||Nominal||Nominal Thicknesses|
|Calibration Standard Sets||Thickness|
|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.|
|Individual Calibration Standards||Thickness|
|T92024034-9||High Temperature Couplant||60ml|
|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.|
|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.