1DESCRIPTION OF THE HARDNESS TESTER 1.1Purpose of the Hardness Tester The hardness tester is designed to perform on-the-spot measurement of structural carbon steels in Brinell (HB), Rockwell (HRC) and Vickers (HV) (main) hardness scales by means of dynamic (contact impedance) method. The hardness tester is designed to perform (referential) hardness check of structural carbon steels in Rockwell (HRA), Rockwell (HRB) and Shore (HSD) hardness testing scales —...
The hardness tester enables the user to perform battery charge monitoring and to set up battery discharge alarm. The hardness tester enables the user to set up automatic device tripping during timeout in order to save battery charge. The hardness tester enables the user to adjust display illumination so as to save battery charge. The hardness tester enables the user to select required display color and intensity range.
Model type ТКМ-459С 12 400 Maximum number of individualized blocks set up in the memory Model type ТКМ-459С Displaying, statistical processing and plotting of charts of the measurement result blocks all results in the block Displaying results in the block which are greater or less than values set up by the user results falling outside the specified range set up by the user maximum, minimum, mean square deviation from average value, average value average deviation from the value set up by the user, number of results bigger / less...
1.6General Information Principle of hardness tester operation is based on ultrasonic contact impedance method – dynamic method of hardness measurement. Unlike hardness testers based on static principle of operation (stationary hardness testers) the measurement results are affected not only by metal properties revealed during plastic deformation of metal but also by other mechanical-and-physical properties.
completed by pressing button “ ” (cursor disappears, parameter 2 remains selected). Entry of string parameters is performed similarly. Exit from parameters set up window to the menu is performed by pressing button “ ”. Exit may be also performed by pressing button “...
The field is automatically cleared at new measurement series commencement. If sample size 1 is selected the field will be cleared after instantaneous pressing of button“ ”. Measurement result recording in device memory is carried out by pressing and holding button “ ”.
Depending on the selected option, the data entry window may be represented as follows. Figure 12. Field “Alarm” is used to select the type of alarm. Digital fields are used to enter the threshold values Hardness tester scales calibration 2.6Calibration of the Scale To enter calibration mode select proper scale of the hardness tester enter the MENU and select <CALIBRATION>...
The hardness tester allows setting up the display colors and intensity. Well-considered setting of the said parameters allows to provide User’s comfort and save the battery charge. To change the above settings, select <SETTINGS> - <DISPLAY>. In the entry window that appears make respective settings.
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Clearing of the memory In order to delete all data blocks from the memory, select <MEMORY> - <CLEAR THE MEMORY >, confirm the selection. The memory is cleared. Memory state information To receive information on current memory state select <MEMORY> - <STATE>. Display will have image in conformity with Figure 17.
-In reference to values range (for instance for instance, admissible hardness range). To enter charts plotting mode, select <MEMORY> - <DATA BLOCKS>. Select the necessary one from the list. In submenu that appears select <CHART>. In parameters entry window that appears select the chart type (“AVERAGE”,”VALUE” or “RANGE”) and initial values required.
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