SCA220 Series Stand Alone Accelerometer FEATURES * Stand alone accelerometer in plastic housing * Available range:2g * Accurate over a wide temperature range -40C ... +85C without any compensation * Electrical connection with integrated connector * Standard analogue output (ratiometric) * Standard bracket and mating connector upon request BENEFITS * Excellent overload durability (1.5 m drop proof) * Plastic housing makes the accelerometer IP6K9K * Meet typical automotive EMC requirements * Easy to use APPLICATIONS * Acceleration measurement * Inclination measurement * Motion measurement For customised product please contact VTI Technologies ELECTRICAL CHARACTERISTICS Parameter Condition Supply voltage (1 Min. Typ Max. 4,5 Current consumption 2,0 Analogue output load V 4,0 mA 10 mOhm 20 Output Units 5,5 nF Analogue Voltage PERFORMANCE CHARACTERISTICS Parameter Condition SCA220-C24H1G Measuring range (1 Units 2 g V Offset (2, 3, 4 Output at 0g @ 23 C 2,5 Offset temperature error -40..85C 60 mg Sensitivity (3 @ 0g (offset position) 1 V/g Sensitivity temperature error (3 -40..85C 3 % Non-linearity 2g 40 mg Frequency response -3dB (5 Output noise Cross-axis sensitivity (6 45 Hz 5 mVrms 4 % Typical values unless otherwise specified. Note 1. Note 2. Note 3. Note 4. The measuring range is limited by the sensitivity and offset. Offset specified as Output @ 0g. Mounting position should be calibrated. See measuring positions. Vdd 5V, unless otherwise specified. Note 5. Note 6. ABSOLUTE MAXIMUM RATINGS Parameter Value Units Over voltage protection(1 16 V Reverse voltage protection 16 V >20000 g Acceleration (powered or non-powered) Rev. 26 Aug 2004 VTI Technologies reserves the right to modify this specification without prior The frequency response is determined by the sensing element's internal gas damping. The output has true DC (0Hz) response. The cross-axis sensitivity determines how much acceleration or inclination, perpendicular to the measuring axis, couples to the output. The total cross-axis sensitivity is the geometric sum of the sensitivities of the two axises which are perpendicular to the measuring axis. MEASURING DIRECTIONS SCA220 Series ELECTRICAL CONNECTION Pin Function 1 Accsig (signal output) 2 GND 3 Vdd Mating connector: AMP 2-967642-1 MQS, Socket housing, SWS, 3 pos.assy AMP 965907-1, Sn Plated socket terminal for 0.75mm2 wire AMP 967067-1, wire seal, green silicone for o1.4...1.9mm wire 2 3 1 MECHANICAL SPECIFICATION MOUNTING Sensor weight: Total weight: Protection class: Metal part : Sensor mounting Bracket Clip 37052 37053 Bracket mounting Screws: Torque: M6 10 2Nm 23 grams 100 grams (with bracket) IP6K9K (DIN 400050) Housing: PBT + 30% glass fiber Bracket: Yellow passivated steel SENSOR DIMENSIONS 2 FIN 1251000012 XXX XXXX XXX SCA220-XXXXX 90 0. 5 max.41.5 Dimensions in mm. 32 25.8 59 77.6 + - MEASURING DIRECTION 6.3 R26 R5 25 3 6. 7.4 570.3 9.3 Acceleration in the direction of the arrow will increase the output voltage VTI Technologies Oy Myllynkivenkuja 6 P.O. Box 27 FI-01621 Vantaa Finland Tel. +358 9 879181 Fax +358 9 87918791 sales@vti.fi VTI Technologies Oy Frankfurt Branch Rennbahnstr. 72-74 D-60528 Frankfurt am Main Germany Tel. +49 69 6786 880 Fax +49 69 6786 8829 sales.de@vti.fi VTI Technologies, Inc. One Park Lane Blvd. Suite 804 - East Tower Dearborn, MI 48126 USA Tel. +1 313 425 0850 Fax +1 313 425 0860 sales@vtitechnologies.com CLIP ASSEMBLY-ONLY FOR INFORMATION