March 1998/053
SCX - Series
Precision Compensated Pressure Sensors
Aubinger Weg 27, 82178 Puchheim, Germany
Phone 0049 - (0) 89 80 08 30, Fax 0049 - (0) 89 8 00 83 33
http://www.sensortechnics.com
SPECIFICATION NOTES:
1.
Reference conditions: Unless otherwise noted: Supply voltage, V
S = 12 V, TA = 25°C, Common-mode Line Pressure = 0 psig,
Pressure Applied to Port B. For absolute devices only, pressure is applied to Port A and the output polarity is reversed.
2.
Span is the algebraic difference between the output voltage at full-scale pressure and the output at zero pressure. Span is ratiometric to the supply voltage.
3.
See Definition to Terms.
Hysteresis - the maximum output difference at any point within the operating pressure range
for increasing and decreasing pressure.
4.
Maximum error band of the offset voltage and the error band of the span, relative to the 25°C reading.
5.
Maximum difference in output at any pressure with the operating pressure range and temperature within 0°C to +50°C after:
a)
1,000 temperature cycles, 0°C to +70°C
b)
1.5 million pressure cycles, 0 psi to full-scale span
6.
Input impedance is the impedance between pins 2 and 4.
7.
Output impedance is the impedance between pins 3 and 5.
8.
This is the common-mode voltage of the output arms (Pins 3 and 5) for V
S = 12 VDC.
9.
Response time for a 0 psi to full-scale span pressure step change, 10% to 90% rise time.
10.
Long term stability over a one year period.
11.
Maximum zero pressure offset for absolute devices is 0 ±500 µV.
COMMON PERFORMANCE CHARACTERISTICS1
Characteristic
Zero Pressure Offset
Combined Linearity and Hysteresis3
Temperature Effect on Span (0-70°C)4
Temperature Effect on Offset (0-70°C)4
Repeatability5
Input Impedance6
Output Impedance7
Common-mode Voltage8
Response Time9
Long Term Stability of Offset and Span10
Min.
-300
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5.8
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Typ.
0
±0.1
±0.2
±100
±0.2
4.0
4.0
6.0
100
±0.1
Max.
+300
±0.5
±1.0
±500
±0.5
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6.2
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Unit
µV
%FSO
%FSO
µV
%FSO
k
Ω
k
Ω
V
DC
µsec
%FSO
Maximum Ratings (For All Devices)
Environmental Specifications (For All Devices)
Supply Voltage V
S
+30 V
DC
Temperature Range
Common-mode Pressure
50 psig
Compensated
0 to 70°C
Lead Temperature
Operating
-40°C to +85°C
(Soldering, 4 seconds)
250°C
Storage
-55°C to +125°C
Humidity Limits
0 to 100 %RH
PRESSURE SENSOR CHARACTERISTICS1
STANDARD PRESSURE RANGES
* Maximum pressure above which causes permanent sensor failure
PART NUMBER
SCX01DN
SCX05DN
SCX15AN
SCX15DN
SCX30AN
SCX30DN
SCX100AN
SCX100DN
SCX150AN
SCX150DN
OPERATING PRESSURE
0 - 1 psid
0 - 5 psid
0 - 15 psia
0 - 15 psid
0 - 30 psia
0 - 30 psid
0 - 100 psia
0 - 100 psid
0 - 150 psia
0 - 150 psid
PROOF PRESSURE*
20 psid
20 psid
30 psia
30 psid
60 psia
60 psid
150 psia
150 psid
150 psia
150 psid
FULL-SCALE SPAN2
Typ.
18 mV
60 mV
90 mV
90 mV
90 mV
90 mV
100 mV
100 mV
90 mV
90 mV
Min.
17.82 mV
59.4 mV
89.1 mV
89.1 mV
89.1 mV
89.1 mV
99.0 mV
99.0 mV
89.1 mV
89.1 mV
Max.
18.18 mV
60.6 mV
90.9 mV
90.9 mV
90.9 mV
90.9 mV
101.0 mV
101.0 mV
90.9 mV
90.9 mV
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