LY271 Ultrasonic Hardness Tester
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| | Test force | Application | | 98N | Forgings, welds and heat affected zones | | 50N | hardened carburized layer of machining parts: camshafts, turbines, welds and heat-affected zones | | 20N | Flanges, gear groove, stamping parts, molds, crankshafts, turbine rotors, etc. | | 10N | Ion nitriding layer of stamping dies and forgings | | 8N | Precision parts, reducers and bearing rotating rings | | 3N | Coating (plating) layer: copper and chromium coating (plating) layer of cylinder (t20.04mm), coating of low pressure cylinder, hardened (t20.02mm) thin layer, polished surface | | 1N | Thin layer, polished surface |  
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This ultrasonic hardness tester is an innovative design based on research on the principle of ultrasonic hardness measurement, it is using ultrasonic contact impedance method to compare and test patterns, the tester offers the calibration of probe, presents advantages of high precision, fast speed, easy operation, etc.
The hardness measurement covering most ferrous metals, non-ferrous metals and their alloys in industrial production. 3 User materials with setup guide was included.
It is applicable in measuring for hardness of flange edges, root of gear groove,stamping parts, thin plates, for surface-hardened gear grooves and it's taper parts, as well as shafts, thin-walled pipes, turbines.etc.
Features
* Accord to the Testing Standard GB/T 34205-2017 digital hardness testing machine
* For materials with different elastic modulus, provide multi-point calibration function for any hardness standard based on your standard hardness samples.
* Support hot-swap and self calibration: automatically + by manual identifies the probe
* The material function include 3 new material settings to facilitate hardness testing of special materials
* The display adopts IPS (In-Plane Switching) full digital LCD display no viewing angle, and the back light can be adjusted arbitrarily
* USB communication interface allows for data exchange and parameter setting with PC
* The upper and lower limits of the hardness value can be pre-set, and an automatic alarm will be issued if the range is exceeded, which is convenient for users to meet the needs of batch testing
* 600 sets of hardness measurement data each includes measurement date, sensor type, material, number of times, single measurement value, average value, maximum value, minimum value, hardness scale and other information
Standard Package
Main unit, Probe (2kgf), Probe cable, 5V ac power adapter, Standard test block, Carrying case
Technical parameters
| Measurement direction | perpendicular to testing surface |
| Hardness scale | Vickers (HV), Brinell (HB), Rockwell (HRB), Rockwell (HRC), Rockwell (HRA), |
| Display Measurement | Vickers (HV) + selected hardness scale |
| Measuring range | HV:10~1999, HB:76~618, HRB:41~105, HRC:20.3~68, HRA:60.7~85.6 |
| Measuring materials | steel and cast steel, cast aluminum alloy, pure copper. |
| Display | 3.5-inch IPS full digital color LCD display, resolution 480×320. |
| Probe recognition | automatic recognition + manual setting, supports hot swapping |
| Data storage | maximum 600 groups (number of measurements 1 to 32) |
| Working voltage | 3.7V lithium-ion battery pack |
| Continuous working time | about 10 hours |
| Charging power supply | 5V/1000mA; |
| Communication interface | USB2.0 |
| Probe test force | 2kgf(optional , 5kgf, 10kgf) |
Table 1
| Maximum allowable relative error | Hardness of standard test block | Maximum allowable relative error of hardness tester % |
| HV1 | HV2 | HV5 | HV10 | HV0.1 | HV0.3 | HV0.8 |
| <250HV | 4 | 4 | 4 | 4 | 5 | 5 | 4 |
| 250HV-500HV | 4 | 4 | 4 | 4 | 6 | 6 | 4 |
| >500HV-800HV | 5 | 4 | 4 | 5 | 7 | 7 | 5 |
| >800HV | 6 | 4 | 4 | 4 | 8 | 8 | 6 |
Table 2
| Maximum allowable relative repeatability | Hardness of standard test block | Maximum allowable relative repeatability of hardness tester % |
| HV1 | HV2 | HV5 | HV10 | HV0.1 | HV0.3 | HV0.8 |
| ≤250HV | 8 | 5 | 5 | 5 | 8 | 8 | 9 |
| >250HV | 6 | 5 | 5 | 5 | 6 | 6 | 6 |
Table 3_Probe specification
| Probe | 1kgf manual probe | 2kgf manual probe | 5kgf manual probe |
| Accessory | Optional accessory | Standard accessory | Optional accessory |
| Test force | 10N | 20N | 50N |
| Diameter | 22mm | 22mm | 22mm |
| Length | 150mm | 150mm | 150mm |
| Resonant rod diameter | 2.4mm | 2.4mm | 2.4mm |
| Maximum roughness of test surface | Ra<3.2um | Ra<5um | Ra<10um |
| Minimum workpiece weight | 0.3kg | 0.3kg | 0.3kg |
| Minimum workpiece thickness | 2mm | 2mm | 2mm |
Product Tags:
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