Preliminary
SCA114T and SCA124T Series
Stand Alone Inclinometer
Current Output
FEATURES
•
±30°
or
±90°
for inclination measurement
• 4…20mA current loop output
• 10…36V supply voltage
• High repeatability/stability 0,03°
• >20 000g shock resistant sensing element
• IP67 housing
• Standard M12 sensor connectror
• Reverse polarity protected
BENEFITS
• Excellent long term stability
• Outstanding shock durability
• Harsh environment robustness
APPLICATIONS
• Platform tilt measurement
• Equipment and instrument condition monitoring
• Inclination based position measurement
• Rotational orientation measurement (dual axis)
For customised product please contact VTI Technologies
ELECTRICAL CHARACTERISTICS
Parameter
Supply voltage
Output
Output
(1
Output
(2
Condition
Non stabilized
Current output
Voltage output
Voltage output
Min.
10
4
1
0
Typ
Max.
36
20
5
10
Units
V
mA
V
V
PERFORMANCE CHARACTERISTICS
Parameter
Measuring range (FS)
Measuring direction
Repeatability
(3
Resolution / Noise
Offset
(4,5
Offset accuracy
Sensitivity
(3
Cross-axis sensitivity
(6
Frequency response
Operating temperature
Long term stability
Housing
500 h @ 23°C
Closed connector
LP (-3 dB point)
(7
(5
Condition
(see “Directions”)
@ 0° position
DC ... 10 Hz
0° position
Deviation @ 0°
SCA114T-D02FA
±
30
X
<0.03
0.003
12
0.08
±8
4
1
-40 ... +85
0.03
IP67
SCA114T-D04FA
±
90
X
<0.03
0.003
12
0.25
±8
4
1
-40 ... +85
0.03
IP67
SCA124T-D02FA
±30
X-Y
<0.03
0.003
12
0.08
±8
4
1
-40 ... +85
0.03
IP67
SCA124T-D04FA
±90
X-Y
<0.03
0.003
12
0.25
±8
4
1
-40 ... +85
0.03
IP67
Units
°
°
°
mA
°
mA/FS
%
Hz
°C
°
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Output current measured over 250Ω load resistor.
Output current measured over 500Ω load resistor.
Output function trigonometrical (sine curve) ;
ϕ
= arcsin(I
out
)
Offset specified as Output @ 0°.
Mounting accuracy depending. Position should be calibrated. See measuring positions.
Note 6.
Note 7.
The cross-axis sensitivity determines how much acceleration or inclination, perpendicular
to the measuring axis, couples to the output. The total cross-axis sensitivity is
the geometric sum of the sensitivities of the two axises which are perpendicular to
the measuring axis.
The output has true DC (0Hz) response.
Rev. 27 Aug 2004
VTI Technologies reserves the right to modify this specification without prior to notice.
SCA114T and SCA124T Series
MEASURING DIRECTIONS
X-axis
Y-axis
Earth’s gravity
Positiv incl.
Figure 1.
Positionst
Zero position
Negative incl.
Notes:
• It is important that the part is parallel to the mounting plane, and that the output equals the zero value when sensor is in zero position.
• Please note the picture above which provides information on how the output of the accelerometer behaves in different circumstances when assembled.
Please also note that you can rotate the part around the measuring plane for optimum mounting location.
ELECTRICAL CONNECTION
Pin#
1
2
3
4
5
MECHANICAL SPECIFICATION
Total weight:
Protection class:
Housing:
approx. 200 grams
IP67
Anodized aluminium
Function
X-axis 4...20mA
X-axis 4...20mA
Y-axis 4...20mA
Y-axis 4...20mA
Shield (GND)
Mounting
The sensor module is to be mounted with 3 screws, dimension M6.
Mounting torque 10±2Nm.
SENSOR DIMENSIONS
Dimensions in mm.
72
60
6
17.5
33
6
50
62.5
84
ø 6.5
48
13
36
VTI Technologies Oy
Myllynkivenkuja 6
P.O. Box 27
FI-01621 Vantaa
Finland
Tel. +358 9 879181
Fax +358 9 87918791
sales@vti.fi
VTI Technologies Oy
Frankfurt Branch
Rennbahnstr. 72-74
D-60528 Frankfurt am Main
Germany
Tel. +49 69 6786 880
Fax +49 69 6786 8829
sales.de@vti.fi
VTI Technologies, Inc.
One Park Lane Blvd.
Suite 804 - East Tower
Dearborn, MI 48126
USA
Tel. +1 313 425 0850
Fax +1 313 425 0860
sales@vtitechnologies.com
30
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