Drawell JMHVS-1000AT PLUS Precision Digital Micro Vickers Hardness Tester

Drawell JMHVS-1000AT PLUS Precision Digital Micro Vickers Hardness Tester

Product overview

JMHVS-1000AT PLUS Precision Digital Micro Vickers Hardness Tester is a high-tech product of optical mechanical and electrical integration. The instrument has novel and beautiful shape, and it has good reliability, operability and intuitiveness. It is the upgrading product of micro vickers hardness tester.

The Drawell JMHVS-1000AT PLUS Precision Digital Micro Vickers Hardness Tester supports research, clinical, industrial, education, and quality-control laboratories. Scientific China provides model selection, configuration review, export coordination, and formal quotations.

Key features

• JMHVS-1000AT PLUS Precision Digital Micro Vickers Hardness Tester adopts computer software programming, high magnification optical measurement system, optical sensor and other technologies. Through touch screen input, it can adjust the strength and holding time of measuring light source, and provide various hardness value conversion tables for reference. On its 10 “color touch screen, it can display test method and test force; measure indentation length, hardness value and test force holding time. The number of…
• Working conditions of hardness tester
• Within room temperature23±5℃；
• Horizontal placement on a firm basis；
• In a vibration free environment；
• No corrosive medium around；
• Indoor relative humidity is not more than 65%
• Unpacking and installation
• 1) Remove the outer packing box, take out the main packing box, remove the box cover and remove the main packing box;
• 2) Separate the main body (1) from other accessories (Figure 1)；
• 3) Take out the horizontal adjusting screw (19) from the accessory box and screw it on the bottom of the main body；
• 4) Pull out the eyepiece (6) and screw down the eyepiece tube. Remove the upper cover (7) in the direction of the arrow in the figure below. Remove the shockproof screw (Figure 2).；
• 5) Screw off the screws on the end cover of the weight shell, remove the lower end cover, take out the weight shaft and weight from the accessory box, and put six weights on the weight shaft from small to large. Wipe the weight shaft and weight before installation, so as not to stain them.
• 6) Hold the top of the weight shaft, put it into the weight housing, and turn the weight shaft to make its cross pin in the V-groove of the lever. (Fig. 3)

Applications

• The switch is located at the back side of the instrument, with power switch, fusible core base and power socket. Take out the power cord from the accessory box and connect it to the power supply.
• Turn on the power switch, the main screen will light up the start-up page, click the screen to enter the operation page, if you need to change the test force, please turn the test force change hand wheel to make the test force meet the selection requirements, the load force value should be consistent with the force value displayed on the main screen, if the force value display is inconsistent, it will cause the calculation formula error and affect the value, when you rotate the change hand wheel, you should be…
• The zero position must be calibrated before starting each time. When the edges of the two lines are close to each other, the light transmission gap decreases gradually. When the two lines are in the critical state with or without light gap, i.e. when the zero position is reached, press and hold the eyepiece button for 3 seconds to clear and then the instrument will enter the standby state. At this time, you can put on the sample, focus and press the “start test” key to start the test.
• When the hardness tester is turned on, it will automatically turn the 40x objective (13) to the front position of the main body (optical system magnification 400X, measurement state), and 10x objective (11) is used for observation (optical system magnification 100x at this time).
• Place the standard test block or sample on the test bench (in the center of the objective lens), and the toilet head will descend. When the lower end of the objective lens is 1-3mm away from the test block or sample, the eye will approach the micrometer eyepiece for observation. In the eyepiece, the brightness will gradually increase with the slow decline of the head, indicating that the focus surface is coming, and the speed shall be slowed down until the surface of the test block or sample is observed in the…
• If the image observed in the eyepiece is fuzzy, turn the lens at the front of the eyepiece (due to the difference of vision of each person) until it is clear. If the plane image of the test block observed in the eyepiece has local light and dark conditions, adjust the three adjustment screws on the light source device to make the light source in the center position. If the field of view is too bright or too dark, press the screen directly. Enter the parameters with the “Brightness” key on to adjust the brightness…
• If you want to observe a large field of view on the surface of the test block (if you need to find the preset position, etc.), change the 10x objective to the front of the main body, the focal plane of the 40x objective is slightly different from that of the 10x objective, you can adjust the head up and down to make its imaging clear, rotate the differential cylinder to move the X-Y platform, and then you can find the preset position. Note: if the hardness test is to be carried out, please turn the 40x objective…
• Press the “start test” key on the panel, and the instrument starts to load and maintain the load. After unloading, the 40x objective will automatically turn back to the measurement position, indicating that the test is completed and can be measured.
• Note: if the surface of the sample is uneven or composed of multiple faces, care shall be taken to prevent the indenter from touching the sample when switching the indenter shaft.
• Observe the image of the indentation in the eyepiece. If the image of the indentation is not clear, adjust the head to make it clear. Because the indentation has depth, when the objective lens is magnified by 400X, the tiny depth still has an impact on the focal plane, which is normal.

Technical specifications

Ordering and configuration

Final specifications, included accessories, consumables, software, certifications, power requirements, installation, warranty, and regulatory availability depend on the selected model and destination. Contact Scientific China to confirm the suitable configuration, minimum order quantity, price, lead time, documentation, and international delivery terms before purchase.