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Digital Electronic Brinell Hardness Tester LD-3000M |
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LD-3000M
Digital Electronic Brinell Hardness Tester is a unified product combining optical, mechanic and electronic techniques, which is adopted the precise mechanical structure and computer control closed-circuit system. |
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All testing data such as the testing method, the testing force value, the length of testing indentation, the hardness value and the dwell time of testing force can be showed on the LCD screen, without inputting the value of diagonal length for the indentation and free from looking up the hardness value form the hardness table as well, therefore the reading data are more accuracy and operation of this instrument is more easy. |
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Without the weights, the instrument loads and unloads the testing force with the motor. By means of the 0.5‰ accuracy compression sensor to feedback the information and the CPU to control, the instrument compensates automatically the testing force lost during the testing. |
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Equipped with a digital micro eyepiece on the instrument, the length of indentation can be measured by this eyepiece directly. |
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Testing range |
8～650 HBW |
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Load forces |
612.9N(62.5Kgf)、980N(100Kgf)、1226N(125Kgf)、1839N(187.5Kgf)、 |
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2452N(250Kgf)、4900N(500Kgf)、7355N（750Kgf）、 |
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9800N(1000Kgf)、14700N
(1500Kgf)、29400N(3000kgf) |
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Accuracy |
Hardness Range（HBW） |
Max permissible error％ |
Repeatability％ |
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≤ 125 |
± 3 |
≤ 3.5 |
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125＜HBW≤225 |
± 2.5 |
≤ 3.0 |
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225 |
± 2.0 |
≤ 2.5 |
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Max Height of the Specimen |
225mm |
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Max Distance from the lndenter Center to the Instrument Panel |
135mm |
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Amplification of the Digital Micro Eyepiece |
15X |
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Mini Graduation Value of the Drum Wheel of the Digital Micro Eyepiece |
0.005mm |
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Power supply |
AC110V/220V
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Standard acc |
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Hard Alloyed Steel Ball Indenters:Φ2.5mm、Φ5mm、Φ10mm,each 1PC
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Large Flat Anvil 、small Flat Anvil 、V - Anvil
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One 15× Digital Micro Eyepiece
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One Standard Hardness Block |
