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Blog posts : "Elcometer: Ultrasonic Material Thickness Gauges"

MTG2 Material Thickness Gauge

With automatic transducer recognition which ensures correct probe identification even when the transducer is changed, a measurement rate of 4Hz (4 readings per second) and integral zero disc ensuring maximum accuracy of ±1%, the MTG2 is ideal for taking basic ultrasonic thickness measurements.

The MTG2 is supplied complete with 5MHz, ¼” transducer and is pre-calibrated for measuring on steel only with a thickness range of up to 500mm (20”) in Pulsed-Echo (P-E) mode.

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

 


 
Features:

  • Pulsed-Echo (P-E) measurement Mode
  • Pre-calibrated for measuring on steel only
  • Pre-set measurement rate of 4 readings per second
  • USB data output to PC or similar device

MTG4 Material Thickness Gauge

With a choice of calibration options and measurement modes, the MTG4 is ideal for taking readings on a wide range of coated and uncoated materials.

As well as all the features of the MTG2, the MTG4 has two calibration options. Using an uncoated sample of test material of a known thickness, the gauge can be calibrated using 1-Point calibration. Alternatively, the user can select one of 39 pre-set materials stored within the gauge including; aluminium, steel, stainless steel, cast iron, plexiglass, PVC, polystyrene and polyurethane.

Measurement Mode

Echo-Echo ThruPaint™ (E-E) measurement mode enables readings to be taken on coated materials with a thickness range up to 25.4mm (1”). 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.

Data Output

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

Features:

  • Pulsed-Echo (P-E) and Echo-Echo ThruPaint™ (E-E) measurement modes
  • 1-Point, Material and Factory calibration options
  • Pre-set measurement rate of 4 readings per second
  • USB data output to PC or similar device

MTG6 Material Thickness Gauge

With a choice of calibration options, measurement modes – including high speed scan mode, display options and data-logging, the MTG6 is ideal for taking readings on a wide range of coated and uncoated materials and downloading data for further analysis and reporting.

As well as all the features of the MTG2 & MTG4, the MTG6 has additional calibration options; 2-Point, Velocity and known Thickness Value.

Measurement Mode

The MTG6 offers Velocity Mode (VM) which is ideal for determining the homogeneity of a material/alloy and the correct velocity of a material for calibration.

Using Scan Mode, readings can be taken at a rate of 16Hz (16 readings per second) over a large surface area.  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.

Display Mode

With a user definable display, users can choose to view readings, statistical information, bar graph - an analogue representation of the current reading together with the highest (Hi) , lowest (Lo); and average (x), reading or a run chart; a trend graph of the last 20 readings.

Data Logging & Data Output

The MTG6 has a single batch gauge memory and can store up to 1,500 readings. Compatible with both ElcoMaster® and ElcoMaster® Mobile Apps, readings can be downloaded via USB or Bluetooth® to PC, iOS or Android™ devices for further analysis and reporting.
 

Features:

  • Pulsed-Echo (P-E), Echo-Echo ThruPaint™ & Velocity (VM) measurement modes
  • 2-Point, 1-Point, Material, Velocity, Thickness Set and Factory calibration options
  • User selectable measurement rate; 4, 8, 16 readings per second
  • User selectable reading resolution; 0.1mm (0.01”) or 0.01mm (0.001”)
  • Scan Mode
  • Readings, Selected Statistics, Bar Graph & Run Chart
  • Gauge memory; single sequential batch of up to 1,500 readings
  • USB and Bluetooth® data output to ElcoMaster® and ElcoMaster® Mobile Apps

MTG8 Material Thickness Gauge

The MTG8 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.

Statistics

The MTG8 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.

Display Mode

The MTG8 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 MTG8 offers B-Scan, a time based, cross sectional 2 dimensional 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.

Data Logging

The MTG8 can store 100,000 readings in up to 1,000 sequential or grid type batches. Using grid batching, readings are stored in a spreadsheet type format. The Obst feature, allows the user to record an obstruction within the grid.

Data Output

Compatible with ElcoMaster®, PC & Mobile App, readings can be downloaded via USB or Bluetooth® to PC, iOS or Android™ devices for further analysis and reporting.
 

Features:

  • 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 (0.01”) or 0.01mm (0.001”)
  • 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 App

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CG70 Corrosion Thickness Gauges

The CG70 range of corrosion thickness gauges with its large, easy to read display, provides users with A and B-Scan options for accurate interpretation of measurements.

The Elcometer CG70 corrosion thickness gauge is available in two models: CG70BDL and CG70ABDL. Both models offer 2D cross sectional block view, providing a graphical representation of a material's thickness, ideal for accurate analysis and identification of pits and corroded areas.
 
CG70 Thickness Gauge

Features:

  • Range of display & measurement options: Pulse-Echo, Echo-Echo ThruPaint™ technology
  • Multiple calibration and material selection options
  • Adjustable gain: -30dB to 70dB range
  • Automatic gain control (AGC)
  • 64 User definable setups
  • High speed scan: 32 readings per second
  • Differential and minimal thickness alarm modes
  • Data output and storage: 12,000 readings and waveforms or B-Scans
  • Download to ElcoMaster® data management software

CG100 Corrosion Thickness Gauges

With a wide selection of display and measurement modes, automatic gain control and data-logging, the CG100 range of corrosion thickness gauges is ideal for measuring coating and material thickness as well as for locating pits, flaws and defects in materials.

The Elcometer CG100 ultrasonic corrosion thickness gauge is available in four models - from an entry level CG100B to the top of the range CG100ABDL+.
 
Features:

  • Range of display & measurement options: Pulse-Echo, Echo-Echo, Pulse-Echo Temp, Comp Mode (PETP), Coating Only Mode (CT), Pulse-Echo Coating Mode (PECT)
  • Adjustable gain: -30dB to 70dB range
  • Automatic gain control (AGC)
  • Time corrected gain (TCG)
  • Gate control
  • Threshold adjustment
  • 64 User defined setups
  • Multiple language display
  • Multiple calibration and material selection options
  • High speed scan mode: 32 readings per second
  • Differential and minimal thickness alarm modes
  • Data output and storage: 16,000 readings and waveforms or B-Scans
  • Download to ElcoMaster® data management software

UG20DL Underwater Thickness Gauge

The UG20DL is an underwater material and coating thickness gauge ideal for offshore inspections.

Waterproof to a depth of 300 metres (1,000 feet) the UG20DL offers many features and benefits of the CG100 series in an easy to use brightly lit gauge.

Offering both dual & single element transducers the UG20DL's memory allows users to store up to 5,000 individual readings, together with the A-Scan waveform which can be downloaded to the data management software for further analysis on dry land.
 
UG20DL Thickness Gauge

 

 

 

Features:

  • 300 metre (1000 ft.) depth rating
  • Single membrane & dual element probe transducers
  • Automatic probe recognition & zero function
  • Pulse-Echo, Pulse-Echo w/Coating, Echo-Echo
  • Data Storage: Alpha Numeric & Sequential w/ID
  • Data output and storage: 5,000 readings
  • Download to ElcoMaster® data management software

UG20DL Features Explained
 
Repeatability / Stability Indicator

Consisting of 6 vertical bars, when all the bars are fully illuminated and the last digit on the digital thickness value is stable, the gauge is reliably measuring the material thickness.

V-Path CorrectionV Path Correction

Dual element transducers consist of a probe with two crystals (one to transmit and one to receive the sound pulse). The crystals are separated by an acoustic barrier - generating a 'V-shaped' sound path as the sound travels from one element to the other.

This path is slightly longer than the direct path therefore V-path correction is used to calculate the correct thickness.
 

UG20DL Measurement Modes Explained
 
Pulse - Echo Mode (PE):

The normal display mode, measures the total thickness from the base of the transducer probe to the material density boundary (typically the back wall). Ideal for pit and flaw detection.

Echo - Echo Mode (EE):

Also known as the ThruPaint™ Mode, EE ignores the·coating thickness, displaying the material thickness from the top surface of the material to the material density boundary.

Pulse - Echo Coating Mode (PECT):

Displays both the material thickness (PE) and the coating thickness (CT) at the same time.
 
UG20DL Display Modes Explained
 
Material Thickness Digits Display:

The standard display on all models, this displays the numerical thickness value in either millimetres (MM)or inches (IN).

A-Scan Display; Full Wave (RF):

The A-Scan display shows the sine wave created by the reflected sound, or oscillation, from the material being measured. In RF mode the full wave form is displayed.

A-Scan Display; Rectified (+ or -):

Users can select to view either the positive or the negative cycle of the full waveform (RF). This rectified(RECT) display shows the amplitude of the echo versus the transit time.

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