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GURLEY Precision Instruments
835S Rotary Incremental Encoder

835S Rotary Incremental Encoder

Product catalog summary

Overview: The Gurley Series 835S is a family of industrial-grade optical incremental encoders designed for high performance and endurance. These encoders are available in two models, 8135S and 8235S, which share mechanical and electrical features but differ in performance and price.

Specifications: Both models feature LED illumination, push-pull phototransistors, optional zero index, and sealed ABEC Class 7 bearings. They offer resolutions up to 360,000 counts/rev with internal electronics and up to 900,000 counts/rev with external electronics. The encoders are ISO 9001 certified and designed for industrial applications.

Models:

Model 8135S: Standard accuracy with a maximum line count of 11,250 on the disc.
Model 8235S: High accuracy with a maximum line count of 22,500 on the disc.

Error Analysis: Total optical encoder error includes instrument error, quadrature error, and interpolation error. Instrument error is due to mechanical imperfections, quadrature error arises from phasing and duty cycle tolerances, and interpolation error occurs when resolution is electronically increased.

Extended Resolution: The HR2A external electronics package allows for resolutions up to 900,000 counts/rev. It supports various output formats and is compatible with most counter circuits and programmable logic controllers.

Electrical Connections: The encoders offer multiple output options, including buffered sine wave, square wave, and pulse outputs. They are equipped with EIA/RS-422 line drivers and support various connector types.

Environmental Specifications: The encoders operate within a temperature range of 0 to 70°C and can withstand shock and vibration conditions typical in industrial environments.

Special Capabilities: Customization options are available for higher frequency response, greater accuracy, and other specific requirements. Gurley Precision Instruments also offers a one-year warranty against defects.

Ordering Information: The document provides detailed ordering codes for model selection, line count, index format, input voltage, output format, interpolation factor, base type, cable length, and connector type.

Catalog excerpts

*Internal electronics**External Electronics > The Series 835S is a family of industrial-grade optical incremental encoders, available in two different models. They have the same mechanical and electrical features, but differ in performance and price.The following features are common among both models: LED illumination for reliability Push-pull phototransistors for signal stability Optional zero index Combination synchro/face mount M Sealed ABEC Class 7 bearings for protection against contaminants Precise chrome-on-glass disc Model 8135S:Model 8235S: Two Models available: Resolution up to 8 times the line count on the disc Dual reading heads for improved accuracy. Resolution up to 80 times the line count on the disc. edium-duty housing, or optional environmentally sealed housing > Gurley Precision Instruments514 Fulton StreetTroy, NY 12180 U.S.A.(800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: [email protected] ingenuity@work

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.2 [5] SHIELDED CABLE,10 CONDUCTOR (5 TWISTED PAIRS) 3 HOLES EQUALLY SPACED#10-32 X .380 [9.65] MIN THD DEPTH 28 AWG (7/36), PVC JACKET ON A 1.875 [47.63] DIA B.C. CONN. CODE P = PIGTAILSCONN. CODE Q = DA-15P .135 [3.43] .06 [1.5] SHAFT DIA[9.517/9.512].3747/.3745.10 [2.5]0.13 [3.3] CONN. CODE S = DE-9P 3.50 [88.9] 3.41 [86.6] MAXDIA 1.2500 [31.750] 1.2495 [31.737] PILOT DIA MAXDIA 3.35 DIA1.01MAX[25.7] L1 (SEE TABLE) .75 [19.1] MS3102E-18-1P [85.1] [85.1] (NOTES 1, 2, 3)CODES SM OR SAEXIT/CONNECTOR 1.50 [38.1] 3.50 [88.9] 3.35 DIA DIA MS3102E-18-1PMAX .135 [3.43] L2 (NOTES 1, 2, 3)CODES TM OR...

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SINUSOIDAL OUTPUT OPTION > CHAN A CHAN B This option provides quadrature sinusoids at the same spatial frequency (cycles/rev) as the line count on the disc. At lower line counts, the signals tend to be more trapezoidal > V REF BUFFERED SINUSOIDS P-P signal amplitude, data channels: 1.0 ѱ 0.1 V > 360 б180 INDEX INDEX(OPTIONAL) DATATRACK (OUT INTERP = B01 )The output device is an op amp referenced to (50% б3%) x V. Amplitude ratio, min chan to max chan: .90 to 1.00 P-P signal amplitude, index channel: 0.7 0.3 V. > V REF cc Typical signal values at 1 kHz with 4.7 k load to ground (20ѰC). All pulse...

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8135S Standard accuracy 8235S High accuracy LINES - Disc line count > 003600050000512 00900 010000102401575 01800 02000 02048 02500 02540 02700 03000 03175 0330003600 04000 04050 04096 0420004302 04310 04500 05000 05400 06000 06400 06480 07000 0720007640 08000 08192 09000 0955009900 10000 10800 11250 INTERP - Interpolation factor Consult factory for other line counts 01 With buff. sinusoid output 01, 02, 05, 08 With square wave output IND - Index format 01, 02, 04, 05, 08, 10, 20 With pulse output F Full cycle ungated ( BASE - Base type A Synchro/face mount CAB - Cable length, inches (04-99)...

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