ISSUE 2 Installation Instructions for the SR2 Series Hall-Effect Position Sensors PK 88581 ELECTRICAL AND MAGNETIC MOUNTING DIMENSIONS (for reference only) SPECIFICATIONS SR2C-B4 Supply Voltage, VDC 4.5 to 24 Supply Current, mA max. 10 Output Type NPN Output Voltage, max. 0.40 V Output Current, mA max. 40 Magnetic Type* Unipolar -40 to 100C Max. Op. 220 Min. Rel. 50 Min. Diff. 8 Typ. Op. 150 +25C Typ. Rel. 80 Typ. Diff. 10 * 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. 1SR15 Mounting Bracket ABSOLUTE MAXIMUM RATINGS* Parameters 4.5 to 24 VDC Circuit Supply Voltage (Vs) -1.0 to +25 VDC Voltage Externally -0.5 V max. (ON or OFF) Applied to Output +25 V max. (OFF only) Output Current 40 mA Temperature, Operate -40 to +100C and Storage (-40 to +212F) 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 magnetic characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum rating. LEADWIRE COLOR CODE Red Vs (+) Black Ground (-) White Output (Digital) NOTICE Do not reverse supply voltage polarity. Do not exceed maximum ratings. Sensing and Control SR2 Series PK 88581 TROUBLESHOOTING CURRENT SINKING OUTPUTS If sensor does not operate, follow these steps: (Current flow through load into sensor.) Output 1. Make certain wiring is correct (load must be terminal is open collector. In the unoperated connected). condition (I = 0), the output voltage is normally L 2. Measure supply voltage across the Red (+) and high. Black (-) leads to verify that proper supply voltage is present. 3. Connect positive lead of voltmeter to White (output) lead, and negative voltmeter lead to Black (-) lead. With magnet removed (or north pole present), the reading should equal Vs. 4. When the magnet (south pole) moves toward sensor face (beyond operating point), the sensor output should be 0.40 VDC. WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Commencing with date of shipment, Honeywells 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 Buyers 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 1-416-293-8111 Canada 1-815-235-6847 International