User Manual

KELAG Künzli Elektronik AG Telefon [phone]
Ringstrasse 5 Fax [phone]
Ch-8630 Schwerzenbach E-Mail [e-mail]
Schweiz / Switzerland Internet www.kelag.ch
SCA_TI_E Seite 5 von 6
+1g 

 +90° Position 

 4,5V 0g 

 0° Position 

 2,5V -1g 

 -90° Position 

 0,5V
+1g Position 0g Position -1g Position
3.2 Mounting for acceleration and vibration
3.3 Offset-Alignment
Caused by the integration into the application a mechanical offset between the sensor and the
application may occur. For precise measuring we recommend an offset alignment at the position 0g 
0°  2,5V. The alignment will be done in the application device by matching the offset voltage. Thus
the absolute precision increases considerably. (see also chapter 3.4 Temperature compensation)
3.4 Temperature compensation
Due to shrinking / dilatation of the sensing element at temperature variations the geometry of the
element slightly varies. This will have an effect on the result of the measurement. Due to the
symmetrical shape of the sensing element, most of this effect is automatically compensated. The
remaining drift caused by temperature variation is very low, but should be compensated additionally
for high precision applications.
Methods:
- applying temperature compensated sensors of the SCA61T, SCA100T, SCA103T, SCA1000
and SCA1020 series.
- for the temperature compensated sensors calibration data is available on demand, stating the
remaining temperature sensitivity after compensation. These data may be used for external
correction algorithms. In addition the built-in temperature sensor in the SCA61T, SCA100T
and SCA103T series may be used.
- For information please contact our technical consultants by phoning: [phone].
The sensing direction is indicated
by a symbol on the housing