Digital Vickers Hardness Tester

Digital Vickers Hardness Tester-MHV-5Z/10Z/30Z/50Z

Precautions

    It is advisable to use the single-phase 3-pin socket for the power source connection on the present instrument. The grounding end must be according to the stipulated requirement for earth protecting.

     It is necessary to read carefully the usage instruction manual before the operation of the present instrument in order to know the operational procedures and the precautions so as to avoid the damages to the instrument and the personal unsafe accident caused by the incorrect operation.

    During the installment and the preoperational test, the sticking paper that protects the indenter against the shock during the transportation should be taken off carefully because the over-strength in doing it would affect the positional precision of the indenter.

    It is prohibited to dismount and alternate without permission all the electric component parts, the switches and sockets as well as their fixed positions, otherwise, it will cause accident.

    If find abnormal phenomena during loading, press “STOP” key at once. The instrument will stop loading automatically and return to its initial position.

    The standard accessory of Vickers indenter is equipped on present instrument. If require to replace with a Knoop indenter, it must be very carefully, otherwise it will damage the pressure sensor caused by improper operation of replacement. Detail, see introduction in Section 9 of present instruction manual.

    Our company tries to improve the quality of the hardness testers and renew their structure continuously. In case the contents in the USAGE INSTRUCTION MANUAL are a bit different with the actual structure of the instrument, it is hoped and apologized for the fact that the further notice will not be given.

Appearance Structure of Hardness Tester

Digital Vickers Hardness Tester

1. Upper Cover  2. Micro Eyepiece  3.Motorized Turret  4. Indenter  5.Test Table

6 .Upper and Down Lead Screw  7. Hand Wheel  8. Switch  9. RS232 Socket

10. Fuse & Power Cord  11. Printer  12. Regulating Screws  13. Operating Board

14. 10×or 20× Objective    15. 40× or 20× Objective   16. Left Drum Wheel 

17. Right Drum Wheel  18. Input Button

 A Brief Introduction of Hardness Tester

    The Digital Vickers Hardness Tester is a new type high-tech product combining the optical, mechanic and electronic techniques; with a large LCD screen display, a novel and pleasing appearance, direct-viewing, operational functions and reliability, hence it is an ideal instrument for the testing of Vickers hardness. It has an auto-shifting device between indenter and objectives.

    The hardness tester is adopted such techniques as a precise design in the field of mechanics, a higher amplification objectives and digital micro eyepiece in optics field and cold light source for measuring light source, etc.

3.3 Due to adopt the closed-circuits in loading control system, it makes the accuracy of test force higher, the repeatability and stability of displaying values better. It is the initiate of home to adopt this system on Vickers hardness tester. 

3.4 By means of touch keys on the operating board, the dwell time for test force can be preset, the luminosity of light source can be regulated, Vickers or Knoop measuring method can be selected, hardness scales can be exchanged and files can be stored, etc.  All the testing data such as the indentation length, the hardness value, the number of the measurements, and year, month, day, and time are all shown on the LCD screen. It can test result and handle data, and output by printer as well. By means of RS232 interface, the instrument would be connected with computer.

    According to the particular requirements of the client, the instrument can be equipped with CCD device to enable the video measuring and auto image measuring. The instrument is suitable for testing the micro and thin pieces, the parts with the permeated and coated surface, it is also fit for testing Vickers hardness value for the crisp materials such as the agate, glass and it is, therefore, an ideal hardness measuring instrument for the scientific research institutes, the universities, the industrial production units and the metrological institutes using with for studying and measuring.