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BSI Q41K0-X _ -M _ _ _ _ -S92
MEMS Inclination Sensors with Analog Output
Installation (continued)
Mounting the sensor with 1 measurement axis
The inclination sensor is mounted vertically onto the object.
To obtain precise measured values, the reference surface
on the underside of the sensor has to be perfectly vertical.
Deviations from this horizontal position can be
compensated by calibrating using pin 5.
Secure on the side of the object:
Screw the sensor to the object using
4 screws (max. thread diameter of 3 mm).
Mounting the sensor with 2 measurement axes
The inclination sensor is mounted horizontally onto the
object.
To obtain precise measured values, the reference surface
on the underside of the sensor has to be perfectly level.
Deviations from this vertical position can be compensated
by calibrating using pin 5.
Secure to the object:
Screw the sensor to the object
using 4 screws (max. thread
diameter of 3 mm).
Inclination axis of the sensor with 1 measurement axis
The sensor's counting direction using a measurement axis
depends on its inclination alignment, for example:
– Clockwise (+X direction):
from 0° to 180°
or
from 0° to 45°, for example
– Counterclockwise (–X direction):
from 0° to –180°
or
from 0° to –45°, for example
Lateral tilt sensitivity error:
– ±0.06° /°
– Max. lateral tilt 45°
Inclination axis of the sensor with 2 measurement axes
The sensor's counting direction using two measurement
axes depends on its inclination alignment, for example:
For inclinations along the Y-axis:
– Clockwise: from 0° to 45°, for example
– Counterclockwise: from 0° to –45°, for example
For inclinations along the X-axis:
– Clockwise: from 0° to 45°, for example
– Counterclockwise: from 0° to –45°, for example
Cross tilt sensitivity error:
– < (0.17 × cross tilt angle)²
→
one axis <10° tilt for max. accuracy
Centering function (calibration)
At the factory, the inclination sensors are calibrated to the
perfect vertical alignment (1-axis) and perfect horizontal
alignment (2-axis). The maximum deviation is 0.2°.
If the current installation position deviates from these
perfect vertical and horizontal alignments, the sensor can
be centered.
Procedure
1. Bring the object into the zero position using the
installed sensor.
2. Supply the sensor with current and center it within
1 minute as described below:
3. Connect the centering input (pin 5) with the ground for
at least 0.5 seconds.
4. Then, disconnect it. The centering input must remain
free during normal operation.