Small-Spot, Reflective (Minute Object Detection) 24 Beam Improvements Variable-spot, Parallel-light-spot, Small-spot Lens Unit Integrated lens 26 Page This Page Fiber Sensor Features Selection Guide Fiber Units Small-spot is ideal for detecting minute objects. Select the Fiber Unit that is best suited for the workpiece size and installation distance. (Refer to Reference Information for Model Selection) Available with a variable-spot Lens Unit to change the spot diameter without replacing the fiber. The spot diameter can be adjusted according to the size of the workpiece by changing the withdrew length and sensing distance.
Refer to the following graph, which shows the relation between the withdrew length, focal distance, and spot diameter. E39-F3A + E32-C42 Focal distance d (mm) 16 14 12 E39-F17 + E32-C42 Focal distance d (mm) 30 35 40 1.6 Threaded Withdrew length: Short 10 8 6 Withdrew length: Short 20 25 15 Withdrew length: Long Focal distance: Long 4 2 Withdrew length: Long Focal distance: Long 10 5 Fiber Focal distance: Short Spot: Small Spot: Large 0 4 8 12 16 20 Withdrew length I (mm) Focal distance: Short Spot: Small Spot: Large 0 0 2 4 6 8 Withdrew length I (mm) * Withdrew length: Approx.
1.3 to 5.8 mm Specifications Reflective Fiber Units Variable-spot types Lens Units + Fiber Unit Parallel-light-spot types Lens Units + Fiber Unit Small-spot types Integrated Lens Fiber Amplifiers, Communications Unit, and Accessories Model Index Technical Guide and Precautions * The spot diameter and the center distance are the same when using with E3X-ZV series or E3NX- FA @ series. The distance for E3NX-FAH @ infrared models varies. 24 : Spot diame ter (mm) 0.22 0.17 0 .13 0. 100.0 8 Fiber l I: W d: F d ithdre ocal d w length istance : Spot di ameter (mm) 0 .9 0 .6 l d I: Withdre d:
Focal d w len istan 0.3 gth ce Standard Insta Hex-shaped Cylindrical Saving Space Flat Sleeved Small Spot Improvements High Power Narrow view Beam BGS High Power Narrow view BGS s Transparent Object Retro- reflective Limited- reflective Environmental Immunity Chemical- resistant, Oil-resistant Bending Heat- resistant Applications Area Detection Liquid-level Vacuum FPD, Semi, Solar Installation Information Type Spot diameter Center distance (mm) Lens Units Models Lens Units + Fiber Units Appearance (mm) Fiber Unit Bending Model radius of cable 25 Page Dimensions No. Variable spot 0.1 to 0.6 dia. 6 to 15 E39-F3A 23 2 dia. 6 dia. 0.3 to 1.6 dia.
10 to 30 Type Spot diameter Center distance (mm) Lens Units Model Lens Units + Fiber Units Appearance (mm) Fiber Unit Bending Models radius of cable 25 Page Dimensions No. Parallel light 4 dia. 0 to 20 10.9 M3 5 dia. R25 E32-C31 2M Type Spot diameter Center distance (mm) Appearance (mm) Bending radius of cable Models 25 Page Dimensions No. Short-distance, Small-spot 0.1 dia. 5 18 3 dia. Lens: unnecessary IP50 E32-C42S 1M IP50 Long-distance, Small-spot 6 dia. 50