BS65Laserscale

Signal pitch of 138nm
High accuracy, high resolution
Scale accuracy : L < 460 : (0.1+0.4L / 100) μmp-p (L=measuring length in mm)
High accuracy optical reference point : ±0.1μm
Measuring length : 160 mm to 960 mm
Easy installation
Minimal effect from disrupted air current and atmospheric changes.

Specifications
Magnescale reserves the right to change product specifications without prior notice.
Model	BS65-R
Measuring length	160/260/360/460/560/660/760/860/960 mm
Overall length	Measuring length + 36mm
Max. travel	Measuring length + 10mm (5mm on each side)
Scale accuracy (at 20℃）	L < 460 : (0.1 + 0.4L/100) μm p-p , L ≧ 460 : 3μm p-p L : Measuring length (mm)
Grating pitch	Approx. 0.55μm
Signal pitch	Approx. 0.138μm (Approx. 138nm)
Reference point accuracy	±0.1μm
Reference point position	At the center, and every 50mm from the center to the left and to the right
Reference point detection direction	Single direction
Return error	This is virtually eliminated. It should be considered to be less than two resolution limits of the detector that is used.
Repeatability	This is virtually eliminated. It should be considered to be less than one resolution limit of the detector that is used.
Temperature coefficient	8×10^-6/℃
Light source	Semiconductor laser : Wavelength 790nm, Output 6mW
Radiation power	DHHS class 1
Detection principle	Diffraction grating scanning system
Operating temperature	10 to 30˚C (No condensation)
Storage temperature	-10 to 50˚C (Humidity less than 60%)
Max. response speed	400mm/s (When connected with BD96)