1.Introduction

HRS-150 digital Rockwell Hardness Tester adopts novel-designed large LCD screen to display, as well as menu structure. It mainly functions are as follows:
 1. Selection of Rockwell hardness scales,
 2. Choice of plastics Rockwell scales (special requirement, supply accord to sales contract),
 3. Exchange hardness values among hardness scales,
 4. Output the results of hardness measurement with printer,
5. RS-232 hyper terminal setting is with good reliability, excellent operation and easy watching. 

2.Main technical parameters

Rockwell Scales	HRA, HRB, HRC, HRD, HRE, HRF,HRG,HRH,HRK
Initial Testing Force	10kgf (98N)
All Testing Force	60kgf (588N), 100kgf (980N), 150kgf (1471N)
Exchange Scales	Superficial Rockwell,Brinell,Vickers
Duration Time	0~60sec
Overall Dimension	520×240×720mm(L×W×H)
Net Weight	80kg
Max Height of Speciment	170mm
Max depth of speciments	165mm
Power supply	AC220V±5%,50~60Hz