ISSUE 3 Installation Instructions for the Hall-Effect Position Sensors SR3 and SR4 Series GENERAL INFORMATION Completely sealed in threaded plastic bushings to meet NEMA 3, 3R, 3S, 4, 4X, 12 and 13 requirements. PK 87863 24 gage stranded leadwires with irradiated Polyethelene insulation. ELECTRICAL AND MAGNETIC CHARACTERISTICS Electrical Supply voltage, VDC Supply current, mA max. Output type Output voltage, V max. Output current, mA max. Magnetic Type Magnetic SR3F-A1 SR3B-A1 SR3G-A1 SR3C-A1 SR4P2-A1 (4) 4.5 to 24 18.0 NPN (Sink) 0.40 10 Unipolar (1) 4.5 to 24 15.0 NPN (Sink) 0.40 10 Bipolar (2) 4.5 to 24 22.0 NPN (Sink) 0.40 10 Unipolar (1) 4.5 to 24 19.0 NPN (Sink) 0.40 10 Unipolar (1) 6 to 24 13.5 NPN (Sink) 0.40 20 Omnipolar (3) -40 to +85°C (4) Max. Operate 450 150 430 190 25 (-40 to +185°F) Min. Release 170 -150 160 60 5 +25°C (+77°F) Min. Differential Typ. Operate 20 400 40 90 50 350 10 150 20 15 Typ. Release 185 -90 280 100 11 Typ. Differential 20 80 70 30 4 1. A unipolar sensor has a plus maximum operate point and a plus minimum release point. One magnetic pole (south) is required to operate and release a unipolar sensor. 2. A bipolar sensor has a plus (south pole) maximum operate point and a minus (noth pole) minimum release point. Operate and release points can be both positive or both negative. Latching cannot be guaranteed. Ring magnets are usually used with bipolar sensors. 3. An omnipolar sensor operates with any magnetic field (north or south pole). 4. SR4P2-A1 operating characteristics are over -20 to +85°C (-4 to +185°F). ABSOLUTE MAXIMUM RATINGS* Parameters Supply voltage (V) Voltage externally applied to output 4.5 to 24 VDC -0.5 to +28 VDC +26 VDC max. (OFF only) -0.5 VDC min. (ON or OFF) 20 mA 6.0 to 24 VDC -1.2 to +24 VDC +24 VDC max. (OFF only) -0.5 VDC max. (ON or OFF) 20 mA Output current Temperature -40 to +85°C -20 to +85°C Operate & Storage (-40 to +185°F) (-4 to +185°F) Magnetic flux No limit. Circuit cannot be damaged by magnetic overdrive. * Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings. Sensing and Control NOTICE Do not reverse supply voltage polarity. Do not exceed maximum ratings. Torque on plastic nuts must not exceed 12 inch pounds (1,356 Nm). TROUBLESHOOTING If sensor does not operate, follow these steps. 1. Check wiring. Load must be connected. 2. Measure supply voltage across Red (+) and Black (-) leads to verify proper voltage presence. 3. Connect positive voltmeter lead to Green (output), negative voltmeter lead to Black (ground). Remove magnet (or present north pole). Reading should equal Vs. 4. Move magnet (or south pole) toward sensing face (beyond operating point). Output should change state. Voltage should be 0.40 VDC maximum. SR3 and SR4 Series MOUNTING DIMENSIONS (for reference only) PK 87863 CONNECTING SENSOR Typical schematics with representative values are shown below. Current flow is through load into sensor, open collector output. LEADWIRE COLOR CODE Red Vs Black Ground (-) Green Output (Digital) WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Commencing with date of shipment, Honeywell’s warranty runs for 18 months. If warranted goods are returned to Honeywell during that period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact a nearby sales office. Or call: 1-800-537-6945 USA Sensing and Control Honeywell Inc. 11 West Spring Street Freeport, Illinois 61032 Printed with Soy Ink on 50% Recycled Paper PK 87863-3 0303 Printed in USA 1-416-293-8111 Canada 1-815-235-6847 International INTERNET http://www.honeywell.sensing.com firstname.lastname@example.org Specifications not affecting form, fit or function may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. While we provide application assistance, personally and through our literature, it is up to the customer to determine the suitability of the product in the application.
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