SCA121T

SCA111T and SCA121T Series Stand Alone Inclinometer Single or Dual Axis Analog Output FEATURES • Silicon 3D MEMS sensor • 0,1 ° accuracy • Resolution < 0,001 ° • Operating temperature range -40...+85 °C • Long term stability < 0,02 ° • Shock resistance >20 000 g • Sensing element -3 dB @ 18 Hz • Main dimensions: 30x30x13 mm size, single or dual axis • Voltage output • RoHS compatible BENEFITS • Excellent long term stability • Sensing element controlled frequency response • Outstanding shock durability • Harsh environment robustness APPLICATIONS • Platform tilt measurement • Equipment and instrument condition monitoring • Inclination based position measurement • Rotational orientation measurement (dual axis) For customised product please contact VTI Technologies ELECTRICAL CHARACTERISTICS Parameter Supply voltage Current consumption Output load Resistive Capacitive 10 20 Condition Unregulated or regulated ratiometric Min. 7 4.75 Typ 16 5 5 Max. 35 5.25 Units V V mA kΩ nF Applies to: -D02, -D03, -D07 Applies to: -D04, -D05 PERFORMANCE CHARACTERISTICS Parameter Measuring range (1 Supply voltage Measuring axis Offset (2, 5 Offset zero point error (5 Offset temperature error Sensitivity Sensitivity temperature error (5 Nonlinearity Frequency response –3 dB Cross-axis sensitivity (4 Typical values unless otherwise specified. (3 Condition SCA111T-D02 ±30 7 ...35 SCA121T-D03 ±90 7 ...35 X-Y 2.5 1 ±0.2 ±0.6 35 -0.8 ...0.3 -1.5 ...0.5 N/A 18 3 SCA121T-D07 ±30 7 ...35 X-Y 2.5 1 ±0.2 ±0.6 70 -0.8 ...0.3 -1.5 ...0.5 0.1 18 3 SCA111T-D04 ±90 5 ±0.25 X 2.5 1 ±0.2 ±0.6 35 -0.8 ...0.3 -1.5 ...0.5 N/A 18 3 SCA121T-D05 ±90 5 ±0.25 X-Y 2.5 1 ±0.2 ±0.6 35 -0.8 ...0.3 -1.5 ...0.5 N/A 18 3 Units ° V V ° ° ° mV/°(@offset pos.) % % ° Hz % (see “Directions”) Output at 0 ° Max. deviation 0…70 °C -25...85 °C Sine of inclination 0…70 °C -25...85 °C Sinus output X 2.5 1 ±0.2 ±0.6 70 -0.8 ...0.3 -1.5 ...0.5 0.1 18 3 Note 1 Note 2 Note 3 The measuring range is limited by the sensitivity and offset. Offset specified as Output @ 0 °. The frequency response is determined by the sensing element’s internal gas damping. The output has true DC (0 Hz) response. Note 4 Note 5 The cross-axis sensitivity determines how much inclination, perpendicular to the measuring axis, couples to the output. For optimum zero point accuracy, mounting angle of the part can be adjusted. MEASURING DIRECTIONS X-axis Mounting position 1 (Horizontal) Y-axis Mounting position 1 Mounting position 2 Mounting position 2 (Vertical) Earth’s gravity Negative incl., Zero position, Positive incl. Deviation Positive incl., Zero position, Negative incl. Deviation Figure 1. Positions Notes: • It is important that the part is parallel to the mounting plane, and that the output equals the zero value when sensor is in zero position. • Zero position: Please note the picture above which provides information on how the output of the accelerometer behaves in different circumstances when assembled. Please also note that you can rotate the part around the measuring plane for optimum mounting location. Rev. 3 / 1 Nov 2005 VTI Technologies reserves the right to modify this specification without prior to notice. SCA111T and SCA121T Series ELECTRICAL CONNECTION SCA121T series Wire color Blue Red Yellow Green White SCA111T series Name GND Vcc Out X Out Y Function Ground Power supply X-axis output Y-axis output Not connected Wire color Blue Red Yellow Green White Name GND Vcc Function Ground Power supply Not connected Not connected Output X-axis output MECHANICAL SPECIFICATION MOUNTING Cable length: Total weight: Protection class: Housing: -D02, -D03, -D07 30 cm. -D04, -D05 110 cm Approx. 60 grams IP66 Zinc casting with passivation The sensor module is to be mounted on a flat and smooth surface with 2 screws, dimension M4. Mounting torque 5 ±1 Nm. SENSOR DIMENSIONS Dimensions in mm. Figure 2. ORDERING INFORMATION SCA1X1T-D0Y Product type: See Perf.char. table Number of axis: 1=single axis, 2=dual axis VTI Technologies Oy Myllynkivenkuja 6 P.O. Box 27 FI-01621 Vantaa Finland Tel. +358 9 879 181 Fax +358 9 879 18791 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 Ø 4.2