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DHT-300 Integrated Hardness Tester by Time Instruments


The DHT-300 Integrated Metal Hardness Tester by Time Instruments can be used in a wide variety of applications, including material hardness testing of installed machine parts, material identification through hardness testing of products or materials in storage, or parts during manufacture, including those located in limited-access areas. Because of its design and size, the DHT-300 can be used on surfaces in virtually any position.

DHT-300 pocket-size Digital Hardness Tester features state-of-the-art micro-electronic micro-processor technology, incorporated hardness impact probe, and data display in a single, compact unit. Key features of the DHT-300 include data display of statistics, increased memory capacity, USB interface for both recharging and data transfer to your PC or printer, and backlight display for use in dark areas. The instrument comes with a standard test block, and conveniently-small carrying case.

The DHT-300 conforms to ASTM A956, provides exceptional reliability for a wide measuring range, and is capable of automatically converting and displaying measurements into Brinell, Rockwell, Leebs, Vickers and Shore hardness values.

Technical Features of the DHT-300 Digital Hardness Tester:

  • Measuring accuracy: +/- 0.5%
  • Impact device: Model D or DL
  • Hardness measurement values: HRC, HRB, HRA, HB, HV, HS and HLD
  • Automatic calculation of average and mean test values
  • Storage capacity: 1250
  • USB 2.0 interface
  • Impact direction: any angle
  • Impact energy: 8 ft-lbs (11Nmm)
  • Test tip: Tungsten Carbide
  • Dimensions: 158 x 41 x 26 mm
  • Weight: 120g
  • Operating temperature: 0°C - 50°C

Standard Delivery of the DHT-300:

  • Processor integrated with impact device
  • Calibration certificate
  • Standard test block
  • Software
  • USB cord
  • Battery charger
  • Support ring
  • Cleaning brush
  • Carrying case 

DHT-300 HARDNESS RANGES

MATERIALS

HL

HRC

HRB

HB-30D2

HB-10D2

HS

HV

ST & CAST ST

300~900

20.0~68.0

38.4~99.5

80~647

 

32.5~99.5

80~940

CWT STEEL

300~640

20.4~67.1

46.5~100.7

 

 

 

80~898

STAINLESS

300~800

19.6~62.4

 

85~656

 

 

85~802

GC IRON

360~650

 

 

90~334

 

 

 

NC IRON

400~660

 

 

131~367

 

 

 

CAST ALUM

174~560

 

 

 

20~190

 

 

BRASS

200~550

 

13.5~95.3

 

40~173

 

 

BRONZES

300~700

 

 

 

60~290

 

 

COPPER

200~690

 

 

 

45~315

 

 

 

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