Surface Roughness Tester with 4 Parameters & 7 Measurement Memory Group *****           Using the built-in Diamond pin probe, this multi-parameter tester measures 4 parameters (Ra, Rz, Rq, Rt). It has 4 wave filtering methods (RC, PC-RC, GAUSS & D-P) and memorize 7 groups of measurement results & conditions for use at a later time. Widely used in production site to measure surface roughness of various machinery-processed parts, calculate corresponding parameters and clearly display all measurement parameters in Metric or Imperial. In addition, said parameters can be downloaded directly to PC as well via the optional RS-232 CD software & cable and passed ISO, DIN, ANSI and JIS international standards. Measurement can be done by placing the sensor on the surface then uniformly slide the highly sensitive 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 then outputs the results clearly on LCD.   Special Features Multiple parameter measurement: Ra, Rz, Rq, Rt Four wave filtering methods : RC, PC-RC, GAUSS and D-P Highly sophisticated inductance sensor Built-in lithium ion rechargeable battery and control circuit with high capacity The sensor sliding along the surface by driving the mechanism Memorize 7 groups of measurement results and conditions Metric / Imperial Conversion Exclusive DSP processes to output measurement results on LCD Easy operation menu and large LCD display Manual and Auto switch off Circuit with high capacity Compatible with four international standards ISO, DIN, ANSI and JIS Option to communicate with PC computer for statistics, printing and analyzing via the optional cable and software for RS232C interface (optional, not included in the set) Small in size, light in weight and easy to use Specifications Multiple parameter measurement: Ra, Rz, Rq, Rt Filtering methods: RC, PC-RC, GAUSS and D-P Measuring Range Ra, Rq: 0.025-16.00µm/1.000-629.9µinch Rz, Rt: 0.020-160.00µm/0.780-6299µinch Accuracy:<=10% Repeatability: <= 6% Fluctuation of display value: <= 6% Sensor Test Principle: Inductance type Material of Probe Pin: Diamond Radius of Probe Pin: 5µm Dynamo-measurement of Probe: 4mN(0.4gf) Vertical Radius of Guiding Head: 48mm Probe Angle: 90° Maximum driving stroke: 17.5mm / 0.7inch Cutoff Length: 0.25mm / 0.8mm / 2.5mm optional Evaluation length 1-5 cut-off optional Driving speed sampling length = 0.25mm Vt=0.135mm/s sampling length = 0.8mm Vt=0.5mm/s sampling length = 2.5mm Vt=1mm/s returning Vt=1mm/s Resolution: 0.001µm if reading <10µm 0.01µm if 10µm =reading <100µm 0.1µm if reading =100µm Data output: communicate with PC through RS232C interface (optional, not included in set) Store memory: 7 groups of measurement Metric / Imperial Conversion Display: 4 digits, 10mm LCD with blue backlight Power Li-ion battery: rechargeable Operating conditions Temperature: 0~50°C Humidity: <85% Auto & Manual switch off Size: 140 x 57 x 48mm (5.5 x 2.2 x 1.9 inch) Weight: about 420g   Set Includes 1 x Multi-Parameter Tester (main unit) 1 x Standard Sensor 1 x Standard Sample Plate 1 x Screwdriver 1 x Adjustable Leg 1 x Sensor Protector 1 x Carrying Case 1 x Instruction Manual 1 x Power Adapter (choose 1 from these available Adapter for US, UK, Australia and Europe system) OPTIONAL: RS-232 Software & Cable Just add US $38.90 or GBP 23.90 or AU $44.90 or EUR 28,90 to your order to get the RS232 CD Software and Cable     Copyright © 2008. All rights reserved. Discount Instrument *