Catalogue STT280 Sealed Tilt Sensor
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SEALED TILT SENSO R
stt280 SEA
PERFO RM AN CE
ELECTRI CAL
Measurement range °
Supply voltage
(options factory set) Vdc
Vdc
Supply current mA
Supply reversal protection
Output short circuit protection to GN D
Resolution °
Ideal output law -5Vdc version %
8 to 30Vdc version Vdc
Nominal span over ± 60°inclination
Maximum deviation from ideal output law
Zero temperature coefficient (0= 0° Sensitivity temperature coefficient
Output load Li
Output noise mVrms
Frequency response Hz
±60
8 to 30 unregulated 5 regulated (4.75 to 5.25) Up to 40 (-40 to + 90°C) <6.5
Yes - indefinitely Yes - indefinitely
0.07
See Output Characteristics diagram (page 5)
Voutput/Vsupply = 0.4619sin 0 + 0.5, ratiometric, where 0 is angle of inclination Voutput = 2.3094sin 0 + 2.5Vdc, absolute, where 0 is angle of inclination 80% of Vsupply for 5 V version; 4V for 8-30V version
< ± 1% of span
< 100ppm/°C of span (-40 to + 125°C)
< 100ppm/°C (-40 to +85°C)
< 200ppm/°C (-40 to + 125°C) 10k minimum (resistive to GND)
<1
1.5 (-3dB) nominal
< 500 to within 1% of final o utput
± 0.07
< 4 of normal axis sensitivity
perpendicular to the measuring axis couples to the output
Settling time
Hysteresis and repeatability Cross-axis sensitivity*
ms
%
$ Cross-axis sensitivity determines how much inclination
MECHANICAL M ounting
Weight g
Phasing
EN VI RON M EN TAL
Protection class
Operational temperature* 5Vdc supply version °C
8 to 30Vdc supply version °C
°C
Storage temperature °C
Vibration
Shock
Electromagnetic interference
Use 2 x M4 socket head cap screws and M4 washer - maximum tightening torque 2Nm 26
0° when cable exit is vertically down. See Dimensions for output direction
IP68 to 2m for 1 hour duration -40 to + 125
-40 to +122 @ 8V input
-40 to + 100 @ 30V input. Upper temperature limit derates by 1°C for each 1Vdc increase in V supply
-55 to + 125
10Hz to 2000Hz (random) 12.6grms - all axes
3m drop onto concrete (absolute maximum 20,000g)
EN 61000 to 100V/m
f If the maximum operating temperature is exceeded, the voltage regulator will shutdown to protact the device from overheating. Data based on max supply current:
4
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