Description Overview Portable roughness tester compatible with four standards to measure surface roughness of various machinery-processed parts Calculates and clearly displays all measurement parameters Sensor placed on surface and uniformly slides along surface by driving mechanism with sharp built-in probe Probe displacement from roughness changes inductive amount of induction coils to generate analogue signal proportional to surface roughness Exclusive DSP processes and calculates, then outputs measurement results on LCD Specifications Multiple parameter measurement: Ra, Rz, Rq, Rt Highly sophisticated inductance sensor Four wave filtering methods: RC, PC-RC, Gauss, and D-P Built-in lithium ion rechargeable battery and control circuit with high capacity Small in size, lightweight and easy to use Can communicate with PC computer for statistics, printing and analyzing by optional cable and software for interface Manual or automatic shut down; tester can be switched off by pressing power key at any time Tester powers itself off about 5 minutes after last key operation Memorizes 7 groups of measurement results and measuring conditions for later use or download to PC Metric/imperial conversion Display: 4 digits, 10mm LCD, with blue backlight Parameters: Ra, Rz, Rq, Rt Measuring range: Ra, Rq: 0.005 to 16.00 µm / 0.020 to 629.9 µinch; Rz, Rt: 0.020 to 160.0 µm / 0.780 to 629.9 µinch Accuracy: ≤ ± 10% Fluctuation of display value: not more than 6% Sensor test principle: inductance tape Radius of probe pin: 5 µm Material of probe pin: diamond Dynamo-measurement of probe: 4mN (0.4gf) Probe angle: 90° Vertical radius of guiding head: 48mm Maximum driving stroke: 17.5mm / 0.7 inch Cutoff length: 0.25mm / 0.8mm / 2.5mm optional Driving speed: when length = 0.25mm, Vt = 0.135 mm/s; when length = 0.8mm, Vt = 0.5 mm/s; when length = 2.5mm, Vt = 1 mm/s; returning Vt = 1 mm/s Resolution: 0.001 µm if reading < 10µm; 0.01 µm if 10 µm ≤ reading ≤ 100 µm; 0.1 µm if reading ≥ 100 µm Evaluation length: 5 L Cut off Operating conditions: temperature 0~50°C, humidity < 80 %RH Power supply: built-in rechargeable li-ion battery Dimensions: 140mm x 57mm x 48mm (5.5 x 2.2 x 1.9 inch) Condition Used industrial equipment in working condition Included Main unit Small screwdriver Power adapter Standard sample plate Standard sensor Adjustable leg Sheath of sensor Carrying case Instruction manual
