Surface Roughness Tester Leeb 432
Features
● Five optional sensors for measuring special shaped work-pieces.
● DSP chip controlled achieves high accuracy and fast testing speed.
● Matrix LCD screen displays all parameters and data.
● 13 parameters and 4 filtering methods: RC, PC-RC, GAUSS and D-P.
● Precise handheld digital Surface roughness tester, High quality with ISO/ DIN/ CE/ JIS/ FCC standards.
● Memory: 100 groups of measuring data.
● Power supply: 3.7V rechargeable Li-ion battery.
● Standard Sensor: diamond stylus with radius 5μm, force 4mN (0.4gf), and angle 90°
● Available PC software for data management and Excel reports.
● Optional printer connecting by USB.
Measurement Principle
Precise handheld digital Surface roughness tester: When measuring roughness of part surface, the pickup is placed on the surface of the part and then tracing the surface at constant rate. The pickup acquires the surface roughness by the sharp stylus in pickup. The roughness causes displacement of pickup which results in change of inductive value of induction coils thus generate analogue signal which is in proportion to surface roughness at output end of phase-sensitive rectifier. This signal enters data collection system after amplification and level conversion. After that, those collected data are processed with digital filtering and parameter calculation by DSP chip and the measuring result can be read on OLED, communicated with computer.
Standard Sensor
|
Detection Principle |
Inductive |
|
Material of stylus |
Diamond |
|
Radius of stylus |
5μm |
|
Stylus force |
4mN (0.4gf) |
|
Contact angle |
90° |
Technical Specification
|
Model No. |
Leeb 432 |
|
Roughness parameters |
Ra, Ry, Rq, Rz, Rt, RSm, RS, Rp, Rv, R3z, RSk, Rmax, Rmr |
|
Measuring range |
Ra: 0.005-16μm Rz: 0.02-160μm |
|
Resolution |
0.001μm |
|
Maximum driving trip |
17.5mm/0.7inch |
|
Sample length/Range (L) |
0.25mm, 0.8mm, 2.5mm/±20μm, ±40μm, ±80μm |
|
Evaluation length |
1.25mm, 4mm,5mm/Option from (1-5) L |
|
Filtering methods |
RC, PC-RC, GAUSS, D-P |
|
Accuracy |
≤±8% |
|
Repeat ability |
<6% |
|
Memory |
100 Groups |
|
Operating temperature |
0 ºC -40 ºC |
|
Weight |
440g |
|
Dimensions |
119×47×65mm |
|
Standard configuration |
Main Unit, Standard sensor, Calibration block, Supporting platform, Power charger, Manual, Certificate, Warranty card, PC analysis software |
|
Optional Accessories |
Measurement Platforms, optional sensors, printer |
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