Touchstone™ 1 Ultrasonic Thickness Gauge

WHAT IS TOUCHSTONE™ 1 ULTRASONIC THICKNESS GAUGE?

The TOUCHSTONE™ 1 is a high-performance UT gauge. It is a low cost, simple to use handheld thickness gauge, often known as an ‘Ultrasonic Thickness Gage’ in the USA.

It is suitable for use for a variety of applications in NDT (Non-Destructive Testing) and is capable of measuring most engineering materials including plastic, glass, copper, cast iron and aluminium, as well as a wide range of steels.

Touchstone 1 Ultrasonic Thickness Gauge

Ultrasonic thickness testing is used in quality control during manufacturing and as an inspection tool to measure the remaining wall thickness of materials – subject to erosion and corrosion.

The TOUCHSTONE™ 1 works using sound velocity. The TOUCHSTONE™ 1 ultrasonic thickness gauge sends ultrasound through the material you are measuring. The speed that it moves through the material gives a measure of the thickness of the material.

All of the velocities in this sound velocity table are approximations –

MaterialSound Velocity Inch/µSecondMetres/second
Air0.013330
Aluminium0.2506300
Alumina Oxide0.3909900
Beryllium0.51012900
Boron Carbide0.43011000
Brass0.1704300
Cadmium0.1102800
Copper0.1804700
Glass(crown)0.2105300
Glycerine0.0751900
Gold0.1303200
Ice0.1604000
Inconel0.2205700
Iron0.2305900
Iron (cast)0.1804600
Lead0.0852200
Magnesium0.2305800
Mercury0.0571400
Molybdenum0.2506300
Monel0.2105400
Neoprene0.0631600
Nickel0.2205600
Nylon, 6.60.1002600
Oil (SAE 30)0.0671700
Platinum0.1303300
Plexiglas0.1101700
Polyethylene0.0701900
Polystyrene0.09302400
Polyurethane0.07001900
Quartz0.2305800
Rubber, Butyl0.0701800
Silver0.1403600
Steel, Mild0.2305920
Steel, Stainless0.2305800
Teflon0.0601400
Tin0.1303300
Titanium0.2406100
Tungsten0.2005200
Uranium0.1303400
Water0.05841480
Zinc0.1704200
  1. Calibrate the sensor using the inbuilt calibration block.
  1. Identify what substance you want to measure the thickness of.
  1. Use the Sound Velocity Table to ascertain the relevant speed of sound for the substance.
  1. Use the up and down velocity arrows to set the required speed.
  1. Place couplant on the substance being tested and press the sensor down. The thickness will be displayed.
  • TOUCHSTONE™ 1 thickness gauge with embedded stainless 5mm calibration block
  • Ultrasonic sensor
  • 125ml bottle of couplant
  • Full operating instructions
  • 2 x 9v PP3 batteries
  • Foam-lined black polymer carry case

The TOUCHSTONE™ 1 Ultrasonic Thickness Gauge can be used in a variety of locations and used for a variety of different applications.

The TOUCHSTONE™ 1 can be used in:

  • In shipping
  • Offshore

The TOUCHSTONE™ 1 can be used on:

  • Oil and gas containers
  • Storage tanks
  • Pipelines
  • Bridges
  • Road tankers
  • Lighting columns

The TOUCHSTONE™ 1 ultrasonic thickness gauge is widely used within the marine industry by both marine and CLASS surveyors.

The TOUCHSTONE™ 1 ultrasonic thickness gauge is simple to calibrate and operate and process accurate and reproducible results.

  • Operational Weight – 326g
  • Shipping Weight – 750g
Unit –
  • Weight – 250g
  • Dimensions – 132 x 82 x 33mm
Sensor –
  • 5MHz Ultrasonic Thickness
Carry Case –
  • Dimensions – 220 x 200 x 80mm
Power Supply –
  • 1 x 9v PP3 alkaline battery
  • Battery life – 40 hours nominal with PP3 alkaline battery
Temperature Range –
  • -10°C to +50°C
Thickness Range –
  • 0 to 199.9mm
Resolution –
  • 1mm
Accuracy –
  • ±1mm
Velocity Adjustment –
  • 0 to 999metres / sec
Display –
  • 5mm high LCD Screen
  • Back light auto shut off after 3 mins in robust casing waterproof to IP66
American Bureau of Shipping Classification Society Manufacturing Process Approval

ISO 9001:2015

NATO Stock Number 5220-99-290-7166

NCAGE Number U0B22

CE Mark Directives & Laws 89/336/EEC (Electromagnetic Compatibility)

IIMS Corporate Membership Number C508

NFPA Membership Number 2800960

FPA Membership Number 27135

Classltd
International Customer Base and Exceptional Service.

Accreditations and Affiliations

ABS Type Approved Equipment

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    Designed and Manufactured in Great Britain

    We are proud to be British based designers and manufacturers of world-leading ultrasonic water integrity testers, liquid level indicators and non – destructive test equipment.