The TQC Pendulum Hardness Tester has a lot of unique features that ease defining hardness by the König and/or Persoz method as described in ISO 1522. Both methods work on the principle that the damping time of a pendulum oscillating on a sample indicates the hardness.
The instrument has an easy menu-driven interface with jog dial. The automated electronic counting mechanism is not affected by reflections from the surrounding area. The water-level is located on the test specimen, rather than on the instrument’s base. Once the instrument is leveled further calibration is not required. The gas-spring supported transparent draft cover allows easy access to all parts of the instrument.
TQC’s Pendulum Hardness Tester is a modular system. The instrument itself can be used for both the König and- Persoz method. Both pendulums should be ordered separately. After placing the correct pendulum, switching between the two measuring methods only takes a push of a button. The Pendulum is positioned fully automatically by means of a stepper motor. Also the release of the Pendulum is automated through electro-magnetic system. The end of a test is indicated by a visual and acoustic signal.
The TQC Pendulum Hardness Tester base device is available as a 110VAC / 50/60Hz and a 230VAC / 50Hz model.
Specifications:
| Dimensions(H * W * D) | 740 * 430 * 430mm(closed cover); 960 * 430 * 650mm(open cover) |
| Weight | 2.6 kg |
| Material |
Stainless steel(front plate and small parts) Powdercoated steel(housing) Anodised aluminum(left panel) Perspex(draft cover) |
| Power supply | 230 V/ 115 V |
| Thickness glassplate | 6 mm |
| SP0510 | SP0505 | |
| Product description | Stainless steel pendulum | Stainless steel pendulum with adjustable weight |
| Weight | 500 g | 200 g |
| Pivot balls | 2, made of tungsten carbide, diameter 8 mm | 2, made of tungsten carbide, diameter 5 mm |
| Distance between pivot balls | 50 mm | 30 mm |
| Oscillation period | 1 second | 1.4 seconds |
| Deflections | From 12° to 4° | From 6° to 3° |
| Damping time(on glass) | Minimum 430 +/- 15 second | 250 +/- 10 seconds |
| Counting method | Oscillations = time | Oscillations and time |
| Number of oscillations | 179 +/- 7 | |
| Min. sample dimensions | 50 * 71 mm | 50 * 55 mm |
| Max. sample dimensions | 105 * 200 * 11 mm | 105 * 200 * 8.3 mm |
