Tester SRT-6200 Landtek Surface Roughness Tester SRT-6200

* Be compatible with four standards of ISO, DIN, ANSI and JIS. When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism inside the tester. The sensor gets the surface roughness by the sharp built-in probe. This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier. The exclusive DSP processes and calculates and then outputs the measurement results on LCD. * Multiple parameter measurement: Ra, Rz. * Highly sophisticated inductance sensor. * Built-in lithium ion rechargeable battery and control circuit with high capacity. * Small in size, light in weight and easy to use. * Manual or automatic shut down. * Metric /Imperial Conversion. * Use “USB data output” and “RS-232 data output” to connect with PC. * Provide BT data output choice. Display 4 digits, 10 mm LCD, with blue backlight Parameters Ra,Rz Measuring Range Ra: 0.05~10.00 um / 1.000~400.0 uinch Rz: 0.020~100.0 um / 0.780~4000 uinch Accuracy ≤ ± 10% Fluctuation of display value Not more than 6% Sensor Test Principle Inductance type Radius of Probe Pin 10 um Material of Probe Pin Diamond Dynamo-measurement of Probe 16 mN(1.6 gf) Probe Angle 90° Vertical Radius of Guiding Head 48 mm Maximum driving stroke 17.5 mm / 0.7 inch Cutoff length (l) 0.25 mm / 0.8 mm / 2.5 mm optional Driving speed Sampling When Length = 0.25 mm, Vt = 0.135 mm/s When Length = 0.8 mm, Vt = 0.5 mm/s When Length = 2.5 mm, Vt = 1 mm/s Returning Vt = 1 mm/s Resolution 0.001 um, if reading lt; 10um 0.01 um, if 10um ≤ reading ≤ 100um 0.1 um, if reading ≥ 100um Evaluation length 1~5 L optional Auto Power Off Operating conditions Temperature: 0~50 ℃ Humidity: lt; 80 %RH Power Supply