SMART

DESCRIPTION The SMART Position Sensor, 75 mm linear configuration, is a non-contacting sensing solution for linear absolute position sensing with enhanced speed and accuracy. It senses the position of a magnet relative to the sensor from 0 mm to 75 mm [0 in to 3.0 in]. Why is the SMART Position Sensor smart? SMART means that this is a sensor that can essentially think for itself. The SMART Position Sensor has the ability to self-calibrate because it uses a patented combination of an ASIC (Application-Specific Integrated Circuit) and an array of MR (magnetoresistive) sensors to accurately and reliably determine the position of a magnet attached to a moving object (e.g., elevator, valve, machinery, etc.) so that the object’s position can be determined. The MR array measures the output of the MR sensors mounted along the magnet’s direction of travel. The output and the MR sensor sequence determine the nearest pair of MR sensors to the center of the magnet location. The output of these two MR sensors is then used to determine the position of the magnet between them. With this sensor, Honeywell has utilized MR technology through the ASIC at a level never before accomplished. Other configurations are in development. FEATURES Resolution of up to 16 bits provides enhanced accuracy Non-contacting technology can provide enhanced product life and durability with less downtime Combined patented MR sensor and ASIC technology provide enhanced differentiation and performance Air gap of up to 3,0 ±2,5 mm [0.118 ±0.098 in] between sensor and magnet expands application opportunities Other output options (CAN bus, RS232) available upon request Self-diagnostics feature can reduce equipment downtime Small size, taking up less space than most competitive technologies, allows for use where space is at a premium IP67 and IP69K sealing allow use in a variety of harsh applications RoHS-compliant materials meet Directive 2002/95/EC POTENTIAL APPLICATIONS Aerospace: Aircraft ram door position Medical: Syringe pumps Industrial: Cutting and slitting machinery Elevator level position Material handling Packaging Plastic molding machines Valve position Wafer handling equipment Woodworking machinery Table 1. Specifications Characteristic Component Parameter Sensing range 0 mm to 75 mm [0 in to 3.0 in] Resolution 0,05 mm [0.002 in] Supply voltage 6 Vdc to 24 Vdc regulated Output 0 V to 5 V analog Supply current 32 mA max. Linearity ± 0.4% full scale output sensor only Reverse polarity 26.4 V at 125 °C [257 °F] Sensitivity 50 mV/mm typ. Update rate 800 µs Initial startup time 30 ms Termination (flying leads) red = supply voltage, black = ground, green = output Cable bend radius 40 mm [1.6 in] min. Operating temperature range -40 °C to 125 °C [-40 °F to 257 °F] Storage temperature range -40 °C to 150 °C [-40 °F to 302 °F] Air gap 3,0 ±2,5 mm [0.118 ±0.098 in] Magnet velocity along sensor 292 mm/s [11.4 in/s] Sealing IP67, IP69K Shock 50 G half sinewave with 11 ms duration sensor and magnet Vibration 20 G from 10 Hz to 2000 Hz Housing material thermoplastic Approvals CE Mounting: screws ¼-20 or M6 recommended torque range 6 N m to 8 N m [53.1 in lb to 70.8 in lb] Material neodymium magnet only Strength 10,000 gauss Note: Percent linearity shall be the quotient of the measured output deviation from the best fit line at the measured temperature to the full scale output span. Figure 1. Sensor Output Performance Chart NOTICE Ferrous metal within a 100 mm [3.9 in] radius of the magnet may affect sensor performance. Notes: See Fig. 2 for location of “L”. Ideal output at reference point “A” = 0.560 V; ideal output at reference point “B” = 4.31 V. 2 www.honeywell.com/sensing Figure 2. Dimensional Drawings (For reference only: mm/[in].) Sensor A = 2X Mounting ear Magnet B = Magnet C = SMART Position Sensor A = Mounting dog B = Mounting ear Honeywell Sensing and Control 3 Order Guide Catalog Listing Description SMART Position Sensor, 75 mm linear configuration, 0 mm to 75 mm [0 in to 3.0 in] sensing range, SPS-L075-HALS 0 V to 5 V analog output, magnet included Note: Contact Honeywell for alternative allowable magnet orientations. WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, 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. In no event shall Honeywell be liable for consequential, special, or indirect damages. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. Specifications 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. 000676-3-EN IL50 GLO Printed in USA December 2009 Copyright © 2009 Honeywell International Inc. All rights reserved.