Basic Info.

Product Description

1.features this instrument is compatible with four standards of iso, din, ansi and jis and is widely used in production site to measure surface roughness of various machinery-processed parts, calculate corresponding parameters according to selected measuring conditions and clearly display all measurement parameters. 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. specifications display: 4 digits, 10 mm lcd, with blue backlight parameters: ra, rz, rq, rt display range ra, rq: 0.025-16.00um/1.000-1600uinch rz, rt: 0.020-160.0um/0.780-9999uinch accuracy: not more than ±10% fluctuation of display value: not more than 6% sensor : test principle: inductance type radius of probe pin: 5um (default) 2µm material of probe pin: diamond measurement force of probe: 4mn(0.4gf) for 5um stylus 0.75mn(0.075gf) for 2um stylus probe angle: 90° vertical radius of guiding head: 48mm maximum driving stroke: 17.5mm/0.7inch cutoff length (l): 0.25mm / 0.8mm / 2.5mm optional driving speed: vt=0.135mm/s if sampling length = 0.25mm vt=0.5mm/s if sampling length = 0.8mm vt=1mm/s if sampling length = 2.5mm vt=1mm/s if returning profile digital filter filtered profile: rc filtered profile: pc-rc filtered profile: gauss non-filtered profile: d-p resolution : 0.001µm if reading <10µm 0.01µm if 10µm=reading<100µm 0.1µm if reading =100µm evaluation length :( 1~5) cut-off optional operating conditions: humidity <85% standard accessories: carrying case...............................1pc. main unit......................................1pc. standard sensor.............................1pc. standard sample plate......................1pc. power adapter..............................1pc. operation manual...........................1pc. screwdriver................................1pc. adjustable leg.............................1pc. sheath of sensor...........................1pc. optional accessories cable & software for rs232c extension rod measu