920 Rotary Incremental Encoder - GURLEY Precision Instruments - #1

Gurley Series 9x20 Rdtary Incremental Encoder

High Performance - Industrial Ruggedness

The Series 9x20 is a family of optical incremental encoders designed for industrial-grade applications that require high resolution and high accuracy. The Series 920 is available in two basic models and a variety of mechanical configurations. All 920s share these features:

• LED illumination for long life (100,000 hours)

• Differential photo-detectors for signal stability

• Single-board, surface-mount electronics for reliability

• RS-422 differential line driver output for noise immunity

• Zero index signal

• Sealed bearings for contamination resistance (ABEC 7 in solid shaft version; ABEC 5 in blind hollow shaft version).

• IP66 sealing for harsh environments (IP64 at the shaft exit)

Model 9120: Resolutions up to 4500 cycles/rev (18,000 counts/rev); optional index formats; optional input voltage.

Model 9220: Dual read heads for improved accuracy; monolithic integrated ASIC for internally interpolated resolutions up to 36,000 cycles/rev (144,000 counts/rev); watchdog circuit.

9dd1 Certified