Preliminary SCA114T and SCA124T Series Stand Alone Inclinometer Current Output FEATURES * 30 or 90 for inclination measurement * 4...20mA current loop output * 10...36V supply voltage * High repeatability/stability 0,03 * >20 000g shock resistant sensing element * IP67 housing * Standard M12 sensor connectror * Reverse polarity protected BENEFITS * Excellent long term stability * 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 Condition Supply voltage Non stabilized Min. 10 Typ Max. 36 Units V Output Current output 4 20 mA Output (1 Voltage output 1 5 V Output (2 Voltage output 0 10 V PERFORMANCE CHARACTERISTICS Parameter Condition Measuring range (FS) SCA114T-D02FA SCA114T-D04FA SCA124T-D02FA SCA124T-D04FA Units 30 90 30 90 X X X-Y X-Y Measuring direction (see "Directions") Repeatability (3 @ 0 position <0.03 <0.03 <0.03 <0.03 Resolution / Noise DC ... 10 Hz 0.003 0.003 0.003 0.003 Offset (4,5 0 position 12 12 12 12 mA Deviation @ 0 0.08 0.25 0.08 0.25 8 8 8 8 mA/FS 4 4 4 4 % 1 1 1 1 Hz Offset accuracy (5 Sensitivity (3 Cross-axis sensitivity (6 Frequency response LP (-3 dB point) (7 -40 ... +85 -40 ... +85 -40 ... +85 -40 ... +85 C Long term stability 500 h @ 23C 0.03 0.03 0.03 0.03 Housing Closed connector IP67 IP67 IP67 IP67 Operating temperature Note 1. Note 2. Note 3. Note 4. Note 5. Rev. 27 Aug 2004 Output current measured over 250 load resistor. Output current measured over 500 load resistor. Output function trigonometrical (sine curve) ; = arcsin(Iout) Offset specified as Output @ 0. Mounting accuracy depending. Position should be calibrated. See measuring positions. VTI Technologies reserves the right to modify this specification without prior to notice. Note 6. Note 7. 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. The output has true DC (0Hz) response. SCA114T and SCA124T Series MEASURING DIRECTIONS X-axis Y-axis Earth's gravity Positiv incl. Zero position Negative incl. Positionst Figure 1. 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. * 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. ELECTRICAL CONNECTION Pin# Function 1 X-axis 4...20mA 2 X-axis 4...20mA 3 Y-axis 4...20mA 4 Y-axis 4...20mA 5 Shield (GND) MECHANICAL SPECIFICATION Total weight: Protection class: Housing: approx. 200 grams IP67 Anodized aluminium Mounting The sensor module is to be mounted with 3 screws, dimension M6. Mounting torque 102Nm. SENSOR DIMENSIONS Dimensions in mm. 72 6 o 6.5 13 62.5 84 30 50 17.5 33 6 60 48 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 36