| APPLI ED VOLTAG ES The STT280 can be ordered with two input supply voltage options, which are factory set: • The 5Vdc option operates from a regulated supply in the range 4.75 to 5.25Vdc and provides a ratiometric output which is 80% of Vsupply over the ±60° angle of tilt, with 50% of Vsupply at 0° tilt. The ratiometric output means that any change in the supply voltage will show a proportional change in the output. • The 8-30Vdc option will operate from an unregulated supply in the range 8.0 to 30.0Vdc. This version has an internal voltage regulator and provides an output that is absolute and 0.5 to 4.5Vdc over ± 60° angle of tilt, with a nominal 2.5Vdc at 0° tilt. Any variations in the supply voltage will not affect the output signal. When connecting the sensor, care should be taken when making your connections. The STT280 is provided with indefinite reverse polarity protection and short circuit protection between output (YELLOW) to GND (BLACK), but if the output (YELLOW) is connected to the supply it will result in device failure. OUTPUT NOISE The STT280 has a very low output noise level of less than lmVrms. |