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Specification
| Housing | |
| Setup | Miniaturized processor-controlled rebound hardness tester. Impact device with integrated electronics |
| Battery compartment | 2 × AAA cells, lid with snap-in lock |
| Dimensions | Approx. 38 × 170 mm (1.5 × 6.7 in) |
| Weight | Approx. 200 g (0.4 lb) |
| Impact energy | Approx. 12 Nmm |
| Impact device | Dyna D (for all materials enabling testing) |
| Switch-on | Press of a key |
| Switch-off | Automatic after approx. 1 min (single measurement) / 3 min (measurement set) |
| Display and Keypad | |
| Display | LCD, hardness value via 4 seven-segment display, status indicators |
| Keypad | Membrane keypad with 2 click keys |
| Power Supply | |
| Batteries | 2 × AAA cells (AlMn or rechargeable NiCad/NiMH, external charging only) |
| Operating time | > 4,000 measurements |
| Battery indicator | Low battery indicator, hardware switch-off on undervoltage |
| Environmental Conditions | |
| Operating temperature | -10 °C to +50 °C (14 °F to 122 °F) |
| Storage temperature | -20 °C to +70 °C (-4 °F to 150 °F) |
| Relative humidity | 10–80% (non-condensing) |
| Vibration resistance | 5 g (5 to 150 Hz, half-sine) |
| Shock resistance | 11 g (11 ms, sine) |
| Evaluation | |
| Measured quantity | Induced coil voltage, hardness value calculated as HL = V1/V2 × 1000 |
| Data buffer | Battery-backed RAM (data retained for ~3 minutes without power) |
| Measurement uncertainty | ±4 HL average (5 measurements), approx. 0.5% at 800 HL |
| Statistics | Average |
| Conversion standards | DIN, ASTM, Dyna |
| Conversion scales | HL (1.0), HV (1.0), HB (1.0), HS (0.1), HRC (0.1), HRB (0.1), N/mm² (5.0) |