HS25 INCREMENTAL OPTICAL ENCODER Introduction The HS25 combines the rugged, heavy-duty features usually associated with shafted encoders into a hollow-shaft style. Its design includes dual bearings and shaft seals for NEMA 4, 13 and IP65 environmental ratings, a rugged metal housing, and a cable gland. This low-profile design, just 2 deep, is easily mounted on a through shaft. Securing the encoder to the shaft is simple with a collet-style single screw clamp. The optional anti-rotation tether block maintains housing stability during operation. The HS25 is designed to accommodate shafts up to 3/4 in diameter. With optional insulating inserts, it can be mounted on smaller diameter shafts. Applications include motor feedback and vector control, paper converting and printing industries, robotic control, web process control along with many other applications. SPECIFICATIONS Mechanical Shaft Bore 0.375, 0.750, 0.625, 0.500, dia. 0.625 and under are supplied with insulating sleeves. Allowable Misalignment 0.005: T.I.R. on mating shaft 0.75 from shaft end Bore Runout 0.001 T.I.R. Starting Torque at 25C Through shaft version (SS) = 7 in-oz (max) Blind shaft version (BS) = 4 in-oz (max) Bearings 52100 SAE high carbon steel Shaft Material 6061-T6 aluminum alloy Bearing Housing Die cast aluminum with protective finish Cover Die cast aluminum with protective finish 9 Bearing Life 7.5 X 10 Maximum RPM 6,000 RPM (see Frequency Response, below) -4 Moment of Inertia 17 X 10 Weight 9 oz typical Page 1 www.sensata.com Copyright 2018 Sensata Technologies, Inc. SPECIFICATIONS (CONTINUED) Electrical Code Incremental Output Format 2 channels in quadrature, 1/2 cycle index gated with negative B channel Cycles per Shaft Turn up to 2048 (see Table A) Supply Voltage 5 to 28 VDC available (see note 5) Current Requirements 100 mA typical + output load, 250 mA (max) Voltage/Output (see note 5) 15V/V: Line Driver, 515 VDC in, Vout = Vin 28V/V: Line Driver, 528 VDC in, Vout = Vin 28V/5: Line Driver, 528 VDC in, Vout = 5 VDC 28V/OC: Open Collector, 528 VDC in, OCout Protection Level Reverse, overvoltage and output short circuit Frequency Response 100 kHz (see note 7) Output Terminations (See Table 1) Note: Consult factory for other electrical options. Environmental Enclosure Rating NEMA 4 & 13 (IP65) when ordered with shaft seal and a cable gland. Temperature Operating, 0 to 70C extended temperature testing up to 85C available (see note 8) Storage, -25 to 90 C Shock 50 gs for 11 msec duration Vibration 5 to 2000 Hz 20 gs Humidity 98% RH without condensation Page 2 www.sensata.com Copyright 2018 Sensata Technologies, Inc.