NT 548 is a paint inspection gauge which is suitable for use wherever conventional electro-magnetic measuring techniques are ineffective, namely for coatings on wood, concrete, plastics and other non-metallic substrates.

      Testing with the NT 548 is based on the standardized wedge cut procedure: The coating is cut through at a defined angle in such a way that the cut penetrates the substrate. The layer thickness (s) is calculated on the basis of the slope projection (b) of the cut face, determined using a measuring microscope, and the cutting angle (α),Similarly, the individual layer thickness of multilayer systems can be ascertained.

      The NT 548 consists of a black painted aluminium block which accommodates the following functional elements:

    ◆ Exchangeable carbide tip with precision-ground angular cutting blade (come with 4 cutters)

              No.1 Cutter:   Measuring range: 20-2,800μm（Factor: 20 μm）

       No.2 Cutter:   Measuring range: 10-1,400μm（Factor: 10 μm）

              No.3 Cutter:   Measuring range: 5-700μm（Factor: 5 μm）

              No.4 Cutter:   Measuring range: 2-2,80μm（Factor: 2μm）

    ◆ Measuring microscope with a magnification of 50 and a reticle(2mm with 1/140 division), which is also suitable for inspection tasks.

    ◆ Two pairs of support pins to hold the measuring microscope securely and gudie the carbide tip.

    ◆ Battery compartment for 1.5 V battery block.

    ◆ Combination of LED and fibre-optic light guide for optimum specimen illumination at low current consumption.

       It complies with ASTM D 4138,AS 1580 Meth 408.1

Main Technical Parameters:
■ Measuring range (standard)：2～2,800μm

■ Power supply： 1 pc 1.5V battery

■ Overall Size：110×85×25mm
■ Weight：0.5 KG

■ Ordering Information：

    NT 548--- Paint Inspection Gauge

    NT 548/1P--- No.1 Cutter（20-2,800μm）

    NT 548/2P--- No.2 Cutter（10-1,400μm）

    NT 548/3P--- No.3 Cutter（5-700μm）

    NT 548/4P--- No.4 Cutter（2-280μm）