PIG Coating Thickness Gauge ARW-S548

PIG Coating Thickness Gauge ARW-S548

ARW-S548 is a mechanical Thickness Gauge used for coating layer thickness measurement in destructive mode, suitable for use in all cases where conventional electromagnetic measurement techniques are ineffective. Specifically, it finds particular application in measuring the thickness of paint on substrates such as wood, concrete, plastic and other non-metallic substrates.

The ARW-S548 test is based on the standard wedge cutting procedure, the coating is cut by dragging a blade specially inclined at a defined angle, so that the cut penetrates the coating up to the substrate. The thickness or thicknesses of the different coating layers are visually identified and calculated based on the conversion factor of the blade used. The visualization and measurement of the layers is done using the built-in microscope equipped with an illumination source and a metric graticule for measuring the size of the cut for each single slice.

Some application examples:

• Measurement of the thickness of paint on wood
• Measurement of paint thickness on plastic
• Measurement of coating on building materials (concrete, fiberglass, etc.)
• Measurement of multiple coating layers in a single solution

Main features Mechanical Thickness Gauge ARW-S548

• Solid and sturdy, made of a black painted aluminum block which houses the following elements
• Equipped with a practical selector for choosing the cutting blade (4 cutting blades supplied with the instrument)
  • N°1 cutter: measuring range: 20-2800μm (Conversion factor: 20)
  • N°2 Cutter: measuring range: 10-1400μm (Conversion factor: 10)
  • N°3 Cutter: measuring range: 5-700μm (Conversion factor: 5)
  • N°4 Cutter: measuring range: 2-280μm (Conversion factor: 2)
• Built-in measuring microscope with a magnification of 30X and a metric reticle for measuring (2.8 mm with 1/140 division), also useful for any inspections
• Equipped with two sliding wheels to increase stability and sliding making the cut more precise and uniform.
• Battery compartment for 1.5 V battery pack. Combination of LED and fiberoptic light guide for optimal illumination of the sample at low power consumption.
• Built in compliance with ASTM D 4138, AS 1580 Meth 408.1 standards

Supply kit ARW-S548

• Instrument with metal body
• Blade 1, 20-2800 μm
• Blade 2, 10-1400 μm
• Blade 3, 5-700 μm
• Blade 4, 2-280 μm
• Hexagonal key for blade assembly
• Highlighter marker
• ABS case

Metodo Test Method PIG Coating Thickness Gauge ARW-S548

• 1- Mark the surface on which to make the cut with a line of approximately 20mm using the black marker supplied. If it is a dark coating on a dark substrate, use a light colored marker.
• 2- Place the instrument, PIG ARW-SP Thickness gauge with the cutting blade at the beginning of the mark. Apply traction and pressure at the same time to cut the covering, being careful not to press forcefully but to create an even combination of traction and pressure. Otherwise you risk getting stuck or generating an irregular cut.
• 3- After making the cut, use the eyepiece equipped with illumination to check the dimensions by placing the metric graticule over the intersection. Focus the image by rotating the focus knob
• 4- Read on the graduated scale and multiply the value by the multiplication factor “D” of the cutting blade used. The result obtained will be the thickness of the coatings.
• 5- If there are multiple layers, carry out the same operation by measuring the width of the cut for each layer and multiplying them by the “D” factor

Special precautions
The ARW-S548 is designed to give reliable results for many years under normal conditions of use and storage. Contains no components to replace (apart from new blades, which must be ordered separately).

Safety precautions

• A blade and a sharp object, be careful when using.
• Always store the ARW-S548 feeler gauge and its components in the case when not in use.