DH-100 Portable Metal Hardness Tester by Time Instruments

Time Instruments' DHT-100 Portable Hardness Tester is an advanced Leeb’s-type hand-held Digital Metal Hardness Tester with high accuracy, wide measuring range, and easy operation. It is suitable for testing the hardness of all metals and is especially useful for on-site testing of large structures or assembled components. Leeb’s-type rebound hardness testers are widely used in manufacturing plants, testing laboratories, and engineering companies.

DHT-100 can be used on the desk-top or lab table, or strap the meter to the wrist to enable testing of any parts in any location or position. Large LCD display of hardness values in hardness scales: Leeb, Rockwell C or B, Brinell, Vickers, and Shore, as well as average, minimum, maximum, and mean values, with back light for use in darker environments. Tester will alarm when hardness values exceed user-set limits. Optional data storage with RS232 serial download cable.

Features of the DHT-100 Digital Hardness Tester:

  • Menu operation
  • Large LCD display with back-light
  • High accuracy
  • Automatic mean value display
  • Accommodation for all impact devices: D, DC, D+15, G, C, DL, E
  • No re-calibration required
  • Display of hardness values in HL, HRC, HRB, HB, HV & HS
  • Testing can be performed at any angle
  • RS 232 interface to PC or micro-printer
  • Conforms to ASTM A956


Hardness scale

HL, HRC, HRB, HB, HV and HS convertible

Impact devices

D (standard), DC/ D + 15 / C / G / DL (optional)


±0.5 %


LCD display with back light

Statistics function

Average / Max. / Min. value calculation; Limits setting and alarm

Data storage with Output

Data view software & RS232 cable

Max. hardness value

999HV (Impact device D/DC/DL/D+15/C)

68HRC (Impact device D/DC/DL/D+15/C)

680HB (Impact device G)

Minimum sample weight

2kg on solid support / 0.2kg with couplant paste

Minimum thickness coupled

5 mm (Impact device D/DC/DL/D+15)

3 mm (Impact device C)

10 mm (Impact device G)

Battery indicator

Battery low indication

Power supply

2 AAA batteries

Operating temperature

-20°C to 40 ° C






Home | About | New Products | FAQS | Tech Articles | Contact | Terms
Stone Tucker Inc. | Phone: 905-688-5800 | Email: info@stone-tucker.com
Copyright 2011 Stone Tucker Instruments Inc. | Niagara Website Design by Future Access Inc.