Detailed Product Description

MODEL DHT-300 INTERGRATED LEEB HARDNESS TESTER

Feature & Use:  

• Pocket size, easy to operate
• Based on HL hardness value, conversion can be performed to HRB, HRC, HV, HB, and HS
• For most metals
• Automatic orientation correction
• USB interface for both recharging and data transfer to PC
• Internal memory in a batch of 1250 average readings
• Lower and upper limits setting with Low-High display judge
• Works on 3.7V rechargeable lithium-battery with working more than 16 hours continuously
• Auto shutdown after 5 minutes
• Conforming to ASTM A 956

Specifications  

Hardness parameter: HL, HRC, HRB, HV, HB, HS

Measuring range / metallic materials: See the table 1

Display: 112×64 LCD with backlight

Display functions D: Impact direction, Battery power consumption, Hardness scale, 

                              Hardness value, Average value, Max/Min value, Material, 

                              Type of impact device

Accuracy Statistics: Within+/- 0.5% (HLD=800)

Testable workpiece: 

Thickness coupled: Minimum 3 mm or more (Except with Impact device G:10mm)

Mass: 5kg or more (2-5kg on solid support ,2kg with couplant paste)

Surface roughness: Ra 10

Radius (convex/concave): Rmin=30mm or more (30mm with support ring )

Test Points: 5mm or more from the edge of the sample, 

                   3mm or more to each of the tested points

Memory: 1250 groups

Output: USB port

Impact device (standard): D

Optional Impact Device: DL / C

Power: 3.7V rechargeable lithium-battery with working more than 16 hours continuously

Operating temperature: -20 ~ +40

Overall dimensions: 158mm × 41mm × 26mm

Weight: 120g

Standard Delivery

Main Unit with integrated Impact D

Cleaning brush

Test block with HLD value

Certificate

AC adapter / charger

Small supporting ring

Carrying case

Software and Cable

Operation manual

Optional accessories

Mini-printer and Cable                  

Special support rings           

Optional colors