Hardness Tester TH140
Product Information
Technical specifications
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Impact device |
D/DC/DL | D+15 | C | G | E | |
| Impacting energy | 11 Nmm | 11Nmm | 2.7Nmm | 90Nmm | 11Nmm | |
| Mass of impacting body | 5.5g/5.5g/7.3g | 7.8g | 3.0g | 20g | 5.5g | |
| Hardness of spherical test tip | 1600HV | 1600HV | 1600HV | 1600HV | 5000HV | |
| Diameter of spherical test tip | 3mm | 3mm | 3mm | 5mm | 3mm | |
| Material of spherical test tip | Tungsten carbide | Tungsten carbide | Tungsten carbide | Tungsten carbide | Diamond | |
| Diameter of impact device | 20mm | 20mm | 20mm | 30mm | 20mm | |
| Length of impact device | 147/86mm/202mm | 162mm | 141mm | 254mm | 155mm | |
| Weight of impact device | 75/50g | 80g | 75g | 250g | 80g | |
| Max. hardness of the test piece | 940/940/950 HV | 940HV | 1000HV | 650HB | 1200HV | |
|
Average surface roughness of the test piece |
Ra :2mm | Ra :2mm | Ra :0.4mm | Ra :7mm | Ra :2mm | |
| Min. weight of test piece | ||||||
| Direct measuring | 5kg | 5kg | 1.5kg | 15kg | 5kg | |
| Stable support | 2kg | 2kg | 0.5kg | 5kg | 2kg | |
| Compact coupling | 0.1kg | 0.1kg | 0.02kg | 0.5kg | 0.1kg | |
| Min. thickness of test piece | ||||||
| Compact coupling | 3mm | 3mm | 1mm | 10mm | 3mm | |
| Min. case hardened depth | 0.8mm | 0.8mm | 0.2mm | 1.2mm | 0.8mm | |
Size of indentation of spherical test tip:
|
Hardness 300HV |
Indentation diameter | 0.54mm | 0.54mm | 0.38mm | 1.03mm | 0.54mm |
| Indentation depth | 24mm | 24mm | 12mm | 53mm | 24mm | |
|
Hardness
600HV |
Indentation diameter | 0.45mm | 0.45mm | 0.32mm |
17mm |
0.45mm |
| Indentation depth | 17mm | 17mm | 8mm | 41mm | 17mm | |
|
Hardness
800HV |
Indentation diameter | 0.35mm | 0.35mm | 0.30mm | -- | 0.35mm |
| Indentation depth | 10mm | 10mm | 7mm | -- | 10mm | |
| Application range of impact devices |
D type for measuring general pieces
DC type for hole or cylinder DL type for long and narrow channel or hole |
D+15 type for measuring in grooves or recessed surfaces | C type for measuring light and small piece and surface hardened layer | G type for measuring heavy and rough cast and forged piece | E type for very hard material | |
Technical specifications(2)
| Hardness scale | HL, HRC, HRB, HB, HV and HS convertible |
| Tensile strength range (steel only) | ┮b :370-2000 (MPa) |
| Impact device | D (standard), DC/ D + 15 / C / G / DL (optional) |
| Accuracy | Within ÷0.5 % (HLD=800) |
| Statistics function | Average / Max. / Min. value calculation Limits setting and alarm |
| Memory |
128 data
|
| Workpiece Max Hardness value | 940HV (Impact device D/DC/DL/D+15/C)650HB (Impact device G) |
| Workpiece radius(convex/concave) | Rmin=50mm (Rmin=10mm with special support ring) |
| Workpiece Min.weight | 2kg on solid support / 0.1kg with couplant paste |
| Workpiece Min.thickness coupled | 3mm (Impact device D/DC/DL/D+15)1mm(Impact device C)10mm(Impact device G) |
| Workpiece Min.case hardened depth | 0.2mm( Impact device C) |
| Battery indicator | Battery low voltage indication |
| Power supply | 5 Rechargeable batteries NiMH 3.6V, 70mAh |
| Charger | 12V D.C. 600mA |
| Charging time | 2 hours (fast charging with automatic cease) |
| Operating temperature | 0→ to 40 → |
| Dimensions | 270mm≠86mm≠47mm |
| Weight | 675g (including Impact device and printer) |
Measuring range
Standard delivery
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Optional accessories