Surftest SJ-500/P – Series 178

Features

High precision and high performance type surface roughness tester with a dedicated control unit, achieving user-friendly display and simple operation
User-friendly display and simple operation equipped with a highly visible color 7.5-inch TFT LCD.
Easy positioning A joy stick built in the dedicated control unit allows easy and quick positioning. Fine positioning of a small stylus, required for measuring the inner side of a small hole, can be easily made using the manual knob.
Easy setting of measuring conditions for surface roughness. Equipped with simple input function allows inputs according to drawing instruction symbols of ISO/JIS roughness standards. Troublesome measuring condition settings can be easily input by directly selecting a drawing instruction symbol for surface roughness from the menu.

Technical Data

X-axis (drive unit)
Measuring range: 1.97″ (50mm)
Resolution: 1.97µin(0.05µin)
Measurement method: Linear encoder
Drive speed:0 – 0.78″/s (0 – 20mm/s)
Measuring speed: 0.00078 – 0.2″/s (0.02 – 5mm/s)
Traversing direction: Pull
Traverse linearity: 0.0078µin/1.97″ (0.2µin/ 50mm)
Positioning: ±1.5° (tilting, with DAT function) 1.18″ (30mm) (up/down)

Detector

resolution / Range: 0.4µin/32000µin, 0.04µin/3200µin,
0.004µin/320µin
0.01µin(800µin), 0.001µin(80µin),
0.0001µin(8µin)
Detecting method: Skidless / skid measurement
Measuring force: 4mN or 0.75mN (low force type)
Stylus tip: Diamond, 90° / 5µin
(60° / 2µin: low force type)
Skid radius of curvature: 1.57″ (40mm)
Detecting method: Differential inductance

Control Unit

Display: 7.5″ color TFT with backlight
Printer: Built-in thermal printer
Magnification: Horizontal: X10 to X500,000, Auto
Vertical: X0.5 to X10,000, Auto
Drive unit control: Joystick operation with manual knob