The R112 series by Gurley Precision Instruments is a Miniature optical incremental rotary encoder designed for light industrial applications wherein it requires a superior resolution in small packaging. All units have a standard specification of having an LED illumination which can last by about 100,000 hours. Also, it has differential photo detectors designed for signal stability. For its reliability, it uses a single board and surface mount electronics. In addition, a RS-422 is included in the unit which is a differential line driver output for noise immunity.
Gurley Model R112 Rotary Incremental Mini-Encoder
Series: R112
Dia.: 0.47" 12mm
Max. Accuracy: 500
Max. Resolution: 32,000
(Counts/Rev.)
Notes: Solid or Blind Hollow Shaft
See NoteModel R112Maximum line count on disc500Maximum cycles/rev (quad sq waves)8,000Max counts/rev (after quad decode)32,000Internal square wave interpolation1X, 2X, 3X 4X,5X, 8X, 10X, 12X, or 16X Encoder error, ± arcsec1150 (standard)Maximum output frequency, kHz1X square waves1002X, 3X, 4X square waves1505X, 8X square waves30010X, 12X, 16X square waves500Starting torque, in-oz (N-m) @ 20°C0.028(2x10-4)Running torque, in-oz (N-m) @ 20°C0.015(1.1x10-4)Moment of inertia, in-oz-s2(g-cm2)5.7 x 10-6(0.4)Maximum weight, oz (g)1.0 (30)Max. radial or axialshaft load, lb (N)20.7 lb (3)Bearing life with 0.25lb radialload31 x 1010revOperating temperature, °F (°C)4Standard is 32 to 158 (0 to 70); Extended is-40 to 185 (-40 to +85) Humidity, % rh, non-condensing98Shock30 g (300 m/s2)Vibration10 g (100 m/s2)SealingIP50See NoteModel R112Maximum line count on disc500Maximum cycles/rev