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| www..com SCL1700-D31 Product Specification 1(5) Dec. 05, 2005 INCLINOMETER SUB-ASSEMBLY SCL1700-D31 PRODUCT SPECIFICATION VTI Technologies Oy VAT Reg. Business ID 1749605-7 Domicile Vantaa Template no 6200470B www..com SCL1700-D31 Product Specification 2(5) Dec. 05, 2005 1 General description This document describes an inclinometer sub-assembly module, suitable to be built-in in various industrial applications. Inclinometer is available in 2 axis configuration, for horizontal mounting (X and Y tilt measurement). The sensor technology used is VTI's 3D MEMS, with appropriate ASIC circuitry. Output signals are analogue voltage. 1.1 Block diagram Products are based on VTI's inclinometer sensor component, mounted on PCB. Electronics is not encapsulated. Measurement circuitry Gain & filtering Gain & filtering Vout Y Sensing elements EEPROM for calibration constants Vout X Measurement circuitry Gain & filtering Voltage regulation and over voltage protection ASIC Supply voltage (5V) GND SCL1700 Picture 1. Block diagram Programming lines for factory use only 1.2 * * * * * * Inclinometer Features Available range: 15 Controlled frequency response Easy to use and design in Analogue voltage output Dual axis inclination measurement Built-in failure detection Benefits * Excellent long term stability * Outstanding shock durability * High resolution * Harsh environment robustness VTI Technologies Oy VAT Reg. Business ID 1749605-7 Domicile Vantaa Template no 6200470B www..com SCL1700-D31 Product Specification 3(5) Dec. 05, 2005 2 2.1 Specifications Operating specification Condition No load Resistive Capacitive Parameter Supply voltage Current consumption Output load Operating temperature Min. 4.75 50 -40 Typ 5 4.5 20 Max. 5.25 Units V mA k nF C 20 85 2.2 Performance Specification Condition (1 Parameter Measuring range Offset (2,3,4 Min. 2.48 Typ 15 Vdd/2 0.1 0.05 Max. Units V Output @ 0 -5...50C -25C...70C @ 0 (offset position) -5...50C -25C...70C Offset calibration error (3,4,5 Offset temperature error (3,4,6 Sensitivity (3,4,7 0.2 0.1 0.2 152 0.5 mV / % % % Hz % 148 0.1 150 1 Sensitivity calibration error (3,4,8 Sensitivity temperature error (3,4,9 Nonlinearity (10 -1 0.03 3 2 < 0.001 1 0.05 4 1 Frequency response -3dB Cross-axis sensitivity Alignment error Output noise DC...10 Hz Note 1. Note 2. Note 3. Note 4. Note 5. Note 6. Note 7. Note 8. Note 9. Note 10. True DC response X vs.Y axis @ 0 (offset position) The measuring range is limited by sensitivity, offset and supply voltage rails of the device. Offset specified as Voffset = Vout(@0) [V]. +5V supply voltage used in calibration and testing. See proposed connection of SCL1700 in picture 2. Offset calibration error specified as Offset_Calib_error = arcsin(Offset_Calib_error_in_g) [ ], Offset_Calib_error_in_g = {Vout(@0) - 2.5 V} / Vsens [g], Vsens=8.595 V/g. Offset temperature error specified as Offset_Error_@_temp. = arcsin(Offset_Error_@_temp_in_g) [ ], Offset_Error_@_temp_in_g = {Vout @ temp. - Vout @ room temp.} / Vsens [g], Vsens=8.595 V/g. Sensitivity target in calibration 8.595 V/g (a 150 mV/) Sensitivity specified as Vsens = {Vout(@+10) - Vout(@+10)}/(2*sin(10) g) [V/g]. Sensitivity calibration error specified as Sensitivity_calibr_error = {Vsens - Vsens_nom} / Vsens_nom x 100% [%], Vsens_nom = nominal sensitivity. Sensitivity temperature error specified as Sensitivity_temp_error = {Vsens @ temp - Vsens @ room temp} / Vsens @ room temp} x 100% [%]. From best fit sine-function to output through -10 and +10 (SINE COMPENSATED). 2.3 Absloute maximum rating Condition No load Resistive Capacitive 1m drop on concrete Parameter Supply voltage Current consumption Output load Storage temp Mechanical shock Min. Typ Max. 5,5 5 Units V mA k nF C g 50 -40 20 000 10 125 VTI Technologies Oy VAT Reg. Business ID 1749605-7 Domicile Vantaa Template no 6200470B www..com SCL1700-D31 Product Specification 4(5) Dec. 05, 2005 2.4 Electrical Connection Connector: Molex 53261-0590, see picture 2. Pin No. Name Function 1 Vcc Power supply 2 NC Not connected 3 GND Ground 4 Out X X axis output voltage 5 Out Y Y axis output voltage GND VY VX Vdd X 5 1 Sensor Y X Figure 2. Connection of SCL1700 3 3.1 Mechanical specification Dimensions * * * * * * * PCB Material: FR4 PCB thickness: 1.6 mm Size: 30 mm x 30 mm Mounting holes: 3.5 mm Height: 7mm (with pin header 11 mm) Weight: < 10 g Connector: Molex 53261-0590, mates with Molex 51021-0500 Picture 3. SCL1700 mechanical dimensions. VTI Technologies Oy VAT Reg. Business ID 1749605-7 Domicile Vantaa Template no 6200470B www..com SCL1700-D31 Product Specification 5(5) Dec. 05, 2005 3.2 Mounting The sensor module is to be mounted with 4 screws, dimension M3, on a horisontal plane. The mounting surface must be electrically isolated, and in well defined position. It is advised to adjust the offset position after final assembly of the sensor, to achieve maximum performance. 4 Typical performance SCL1700 output voltage vs. tilt angle 5.0 4.5 4.0 0.10 0.08 0.06 0.04 Nonlinearity [ ] 0.02 0.00 -0.02 -0.04 -0.06 -0.08 -0.10 SCL1700, typical linearity error. Straight line fitted to calibration points (-10, 0, +10) Output Voltage [V] 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -15 -12 -9 -6 -3 0 Tilt Angle [] 3 6 9 12 15 -10 -8 -6 -4 -2 0 Tilt angle [ ] 2 4 6 8 10 SCL1700 output signal. Offset temp error Typical nonlinearity SCL1700-D01 sensitivity temperature error [ %], accuracy: 0.5% 200ppm/C , 4.0 0.5 Sensitivity temperature error [ %. ] 0.4 0.3 0.2 Error in degree 0.1 0 -60 -40 -20 -0.1 -0.2 -0.3 -0.4 -0.5 Temp 0 20 40 60 80 100 3.0 2.0 1.0 0.0 -1.0 -2.0 -3.0 -4.0 -25 0 25 Temp [ C ] 50 75 Typical Offset Error over temperature Typical Sensitivity Error over temperature VTI Technologies Oy VAT Reg. Business ID 1749605-7 Domicile Vantaa Template no 6200470B |
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