HVS-50型数显维氏硬度计

Model HVS-50 Digital Vickers Hardness TesterHVS-50型数显维氏硬度计是光机电一体化的高新技术产品，具有良好的可靠性，可操作性，是小负荷维氏硬度计的升级换代产品。
　　该机采用计算机软件编程，高倍率光学测量系统，光电传感等技术，通过软键输入，能调节测量光源的强弱，选择测试方法与对照表、保持时间、文件号与储存等，在LCD大屏幕显示上能显示试验方法、试验力、测量压痕长度、硬度值、试验力保持时间，测量次数并能键入年、月、日期，试验结果和数据处理等，通过打印输出，并通过RS232接口与计算机连网
　　硬度计配可选摄影装置，能对所测压痕和材料金相组织进行拍摄，适用于测量微小、薄形试件、表面渗镀处理后的零件，是科研机构、工厂及质检部门进行研究和检测的理想的硬度测试仪器。
　　Low Load Vicker’s Hardness Tester with Digital Display is a new hi-tech product integrating mechanical and photoelectrical technologies.  As a substitute of traditional small-load Vicker’s hardness tester, it features in easy operation and good reliability.
The following highlight some key features and functions:
--Integration of computer programming technology, high resolution optical measuring system and photoelectrical technique;
--Soft key input;
--Light source adjustment;
--Selectable testing model, conversion tables, pressure-holding time, file number input and data saving functions;
--Big LCD screen to display testing model, testing pressure, indention length, hardness values, pressure holding time and numbers of tests;
--Date recording tst results recording and data processing;
--Printing output function;
--RS232 interface for PC connection;
--Camera for indention photographing and metallography

The tester is specially designed for testing minute, thin samples or parts after surface coating.  For research institutes, factories labs and QC departments, this is an ideal hardness testing instrument for research or measuring purposes.

试验力:  9.8N(1Kgf),49N(5Kgf),98N(10Kgf),196(20Kgf),294N(30Kgf),490N(50Kgf)
硬度范围: HV1 HV5 HV10 HV20 HV30 HV250
示值允许差: ±3.0%  ±2.0% 
试验力施加方法: 自动加卸试验力
测量显微镜放大倍率:100x(测量用)
试验力保荷时间:0-60s(每秒为一单位，任意键入)
最小检测单位:0.25μm
试件最大高度:160mm
压头中心到机壁最大距离:135mm
主机重量:约40kg
电源:AC220V/50HZ
外型尺寸（长×宽×高）：（540×220×650)mm
硬度值范围：
5HV－2500HV

Spectifcantions
Testing Pressure: 
9.8N(1Kgf),49N(5Kgf),98N(10Kgf),196(20Kgf),294N(30Kgf),490N(50Kgf)
Hardness Value Symbol: Error Range in Display
HV1 HV5 HV10 HV20: 　　　 　　±3.0%
HV30 HV250:    　　　　　　 　　±2.0%
Hardness Value Range In Measure: 5HV～2500HV
Magnification of Microscope: 100x
Pressure Holding Time:5-60s
Min. Measurable Unit:0.25μm
Max. Height of Sample:160mm
Distance from Indenter's center to outerwall:135mm
Main Body Weight:Appro. 40kg
Power Supply:AC220V/50HZ
Machine Size(L×W×H)(540×220×650)mm