24PC SMT Series
(mbar)
Unamplified, uncompensated pressure sensors
PRESSURE SENSOR CHARACTERISTICS
V
s
= 10.0 ± 0.01 V, t
amb
= 20°C (unless otherwise noted)
Part number
24PC0050DSMT
24PC0100DSMT
24PC0250DSMT
24PC01K0DSMT
Operating pressure
0 - 50 mbar
0 - 100 mbar
0 - 250 mbar
0 - 1000 mbar
Full-scale span
2
Min.
Typ.
Max.
21 mV
43 mV
61 mV
159 mV
33 mV
65 mV
83 mV
218 mV
44 mV
87 mV
105 mV
276 mV
Sensitivity typ.
650 µV/mbar
650 µV/mbar
333 µV/mbar
220 µV/mbar
COMMON PERFORMANCE CHARACTERISTICS
V
s
= 10.0 ± 0.01 V, t
amb
= 25°C (unless otherwise noted)
Characteristics
Zero pressure offset
Temperature effects (0 - 50°C)
4
Temperature effects on bridge impedance
4
Linearity (P2 > P1, BSL)
3
Repeatability and hysteresis
5
Long term stability
7
Input impedance
Output impedance
Response time
6
Offset
Span
Min.
-30
Typ.
±2.0
-2000
+2200
±0.25
±0.15
±0.5
Max.
+30
Unit
mV
ppm/°C
% sp a n
6.0
6.0
1.0
4.0
4.0
5.0
5.0
kΩ
ms
Specification notes:
1.
The maximum specified pressure which may be applied to the sensor without causing a permanent change in the output
characteristics.
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.
Linearity (BSL), the deviation of measured output at constant temperature (25°C) from "Best Straight Line" determined by three
points, offset pressure, full-scale pressure and half full-scale pressure.
V
- V
offset
[
V
�½ full scale
–
{
(full
full scale
pressure)
scale
x (�½ full scale pressure) + V
offset
}]
: 2 (V
full scale
) x 100 %
where: V = measured value for each device
4.
Error band of the offset voltage, span or bridge impedance in the specified temperature range, relative to the 25°C reading.
5.
Repeatability, the deviation in output readings for successive application of any given input pressure (all other conditions
remaining constant. Hysteresis, the error defined by the deviation in output signal obtained when a specific pressure point is
approached first with increasing pressure, then with decreasing pressure or vice versa (all other conditions remaining constant).
6.
Response time for 0 to full-scale pressure step change, readings taken at 10 % and 90 % of full-scale pressure.
7.
Long term stability of offset and span over a period over one year.
8.
The sensors might be used on both ports, for media compatible with the components, specified under "Service" (page 1).
2/4
June 2005 / 604
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