| CRO SS- AXI S SEN SI TI VI TY The cross axis is the angle that the tilt sensor may be inclined away from the vertical position IN THE PLANE PERFENDICULAR TO the normal axis of rotation. The cross-axis sensitivity (< 4%) shows how much perpendicular acceleration or inclination is coupled to the STT280 output signal. R>r example, if the cross axis tilt is 10°, the added error due to cross-axis sensitivity is less than 0.04 x 10 = 0.4°. This value needs to be included when calculating output error. ENVIRONMENTAL PERFORMANCE The STT280 housing is manufactured using high strength corrosion resistant materials and is protected to IP68, with 2m submersion for 1 hour It can operate in temperatures from -40 to + 125°C (5Vdc version), and has been tested to withstand shocks to 20,000g. The tilt sensor also conforms to EN61000, with EMC Immunity to 100V/m. By using a 3D-MEMS based sensor technology, the STT280 allows a fit-and forget installation, with no moving parts that can deteriorate or wear. LI MITATIONS OF USE The STT280 is designed for use in systems with a frequency response requirement of < = 1.5Hz. It is not designed and cannot be used as an accelerometer unless used within the 1.5Hz maximum frequency response spectrum. |