Tianjin hardness tester, hardness tester, hardness tester Mitutoyo provided by 星枫 instruments. Tianjin hardness tester, hardness tester, hardness tester Mitutoyo Nanchang Xing Feng Instrument Co., Ltd. (www.xingfengyiqi.com) 2014 upgrade been newly launched HM-6561 Leeb hardness characteristics and technical parameters of a 1.1 applications * has Mechanical assembly of parts or permanent installation. * Mold cavity. * Heavy workpieces. * Failure pressure vessel, its equipment Turbine analysis. * Test space is very narrow workpieces. * Bearings and other parts. * Requires a formal test results original records. * Metal warehouse material distinction. * Rapid test to measure large parts of many parts. 1.2 Product Features * Small size, easy to use small space. * You can select the direction of the test materials and test the keyboard. * Conversion can be achieved in six hardness (HL, HRC, HRB, HB, HV, HS) between. * Can be repeated each time the test results, and delete gross error. * Can store 50 groups of measurements and testing status, including materials, test direction, hardness and other information. * Allows user calibration, the measurement more accurate. * With RS232 interface, convenient for computer communications. * Backlit display for easy use in low light conditions. * Manual and automatic shutdown. * Low battery voltage indication. HM-6561 Leeb hardness tester main technical parameters Display: 12.5mm LCD Rockwell hardness price, with backlight. Accuracy: relative error ± 0.8% (HL = 800), repeatability ± 0.8%. Measuring range: 200-900 HLD Hardness Conversion: HL-HRC-HRB-HB-HV-HSD test materials: nine kinds with RS232 interface can store 50 groups of measurements and test status impact device: D-type, weight 75g Power:节 2 1.5V AAA batteries Dimensions: 146 × 65 × 36mm Weight: 130g (without battery) Operating temperature: -10 ℃ ~ +50 ℃ Storage temperature: -30 ℃ ~ +60 ℃ Relative humidity: ≤ 90% Options : support ring 435 hardness tester design: pressure range between 0-20N. Equipment placed on the test surface. So that it rests on two guide wheels, marking wheel locked in a position to press the preset spring pressure on the surface of the spring strength range can be divided into three parts, each containing a replaceable spring. Range 1:0-3 N Sensitivity: 0.1 N Scale 2:0-10 N Sensitivity: 0.5 N Scale 3:0-20 N Sensitivity: 1.0 N Germany 435 hardness tester operation method: Scratch tool is circular, with lock tight means, made of a special plastic or metal. Mounted on the screw, get pressure from a coil spring, spring provides an adjustable first round choice test based on the test requirements, such as plastic wheels for scratch-resistant plastic Rockwell hardness testing, copper wheel or other special wheel for metal scratches. After tightening the screws, mark the wheel does not rotate, and then set the appropriate pressure springs provide a needed. The instrument is then pressed down on the test surface, the guide wheel contact with the surface. The instrument is moved a distance (a few centimeters), the rolling surface of the wheel, to produce a rapid movement of the scratch, the test result is a spring force in Newtons. This force must be generated a visible trace, but not cracks or scratches. If the purpose of the so-called metal marker effects, the results will be expressed as the surface of a black or gray print timing spring force. Note: Mark wheel will wear after use Mitutoyo hardness after conducting the test 100 times, their position must be changed. To move forward along the periphery of 2mm, previously used tags round the point should be added to a scratch mark.