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 –

Material Sound Velocity Inch/µSecond Metres/second
Air 0.013 330
Aluminium 0.250 6300
Alumina Oxide 0.390 9900
Beryllium 0.510 12900
Boron Carbide 0.430 11000
Brass 0.170 4300
Cadmium 0.110 2800
Copper 0.180 4700
Glass(crown) 0.210 5300
Glycerine 0.075 1900
Gold 0.130 3200
Ice 0.160 4000
Inconel 0.220 5700
Iron 0.230 5900
Iron (cast) 0.180 4600
Lead 0.085 2200
Magnesium 0.230 5800
Mercury 0.057 1400
Molybdenum 0.250 6300
Monel 0.210 5400
Neoprene 0.063 1600
Nickel 0.220 5600
Nylon, 6.6 0.100 2600
Oil (SAE 30) 0.067 1700
Platinum 0.130 3300
Plexiglas 0.110 1700
Polyethylene 0.070 1900
Polystyrene 0.0930 2400
Polyurethane 0.0700 1900
Quartz 0.230 5800
Rubber, Butyl 0.070 1800
Silver 0.140 3600
Steel, Mild 0.230 5920
Steel, Stainless 0.230 5800
Teflon 0.060 1400
Tin 0.130 3300
Titanium 0.240 6100
Tungsten 0.200 5200
Uranium 0.130 3400
Water 0.0584 1480
Zinc 0.170 4200

  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

NATO Commercial and Government Entity
NATO Stock Numbers
IMarEST
Classltd
International Customer Base and Exceptional Service.

Accreditations and Affiliations

ABS Type Approved Equipment

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    World Leading Designers and Manufacturers

    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.

    We are the only company to offer recalibration of our products every 5 years