| Parameter | Value | |
| Model | BB20 | |
| Sensor | F (ferrous metals) | N (non-ferrous metals) |
| Functional principle | Magnetic induction | Eddy current |
| Measuring range | 0 to 1250 μm 0 to 49.21 mils |
0 to 1250 μm 0 to 49.21 mils |
| Possible metallic substrates (examples) | Iron, steel | Copper, aluminium, zinc, bronze and others |
| Guaranteed tolerance (of the measured value) | 0 to 850 μm (±3 % ±1 μm) 850 to 1250 μm (±5 %) 0 to 33.46 mils (±3 % ±0.039 mils) 33.46 to 49.21 mils (±5 %) |
0 to 1000 μm (±3 % ±1.5 μm) 850 to 1250 μm (±5 %) 0 to 33.46 mils (±3 % ±0.059 mils) 33.46 to 78.7 mils (±5 %) |
| Accuracy | 0 to 50 μm (0.1 μm) 50 to 850 μm (1 μm) 850 to 1250 μm (0.01 mm) 0 to 1.968 mils (0.001 mils) 1.968 to 33.46 mils (0.01 mils) 33.46 to 49.21 mils (0.1 mils) |
0 to 50 μm (0.1 μm) 50 to 850 μm (1 μm) 850 to 1250 μm (0.01 mm) 0 to 1.968 mils (0.001 mils) 1.968 to 33.46 mils (0.01 mils) 33.46 to 49.21 mils (0.1 mils) |
| Minimum bending radius | 1.5 mm | 3 mm |
| Diameter of the smallest measuring surface | 7 mm | 5 mm |
| Critical primary layer thickness | 0.5 μm | 0.3 μm |
| Ambient temperature | 0 to 40 °C (32 to 104 °F) at 20 to 90 % RH | |
| Power supply | 2 batteries 1.5 V AAA | |
| Dimensions (length x width x height) | 114 x 27 x 54 mm | |
| Weight | 152 g | |
| Scope of delivery • 1 x Layer thickness measuring device BB20 (without batteries) • 1 x Transport case • 1 x Steel and aluminium base plate with different film thicknesses for calibration • 1 x USB cable • 1 x Quick guide • 1 x PC software |
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The BB20 coating thickness gauge uses an intelligent dual-sensor system to precisely measure non-magnetic coatings on both ferrous and non-ferrous metals. Whether paints, varnishes, plastic coatings, galvanising or chrome plating – this compact, one-handed instrument delivers fast, reliable and non-destructive measurement results, making it ideal for vehicle inspections, quality control and professional surface evaluation.
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