RDOB001A2 Datasheet, PDF (3/5 Pages) Sensortechnics GmbH – Precision compensated pressure sensors

RDO Series
Precision compensated pressure sensors
PERFORMANCE CHARACTERISTICS¹
Characteristics
Zero pressure offset
all RDO...D4P and RDO...G2P devices
all RDO...A2P devices¹²
all devices up to 25 mbar/10 "H₂O
all RDO...A2H devices¹²
all other devices
Combined linearity and hysteresis³
all RDO...P devices³
all other devices
Temperature effects (0 to 50°C)⁴
Offset all RDO...P devices
all devices up to 25 mbar/10 "H₂O
all other devices
Span all RDO...P
all other devices
Repeatability⁵
all devices up to 25 mbar/10 "H₂O
all other devices
Input impedance⁶
Output impedance⁷
Common mode voltage⁸
Response time⁹
Long term stability of offset and span¹⁰
Min.
-0.25
-0.30
-0.75
-1.00
-0.50
1.5
Typ.
0
0
0
0
0
±0.1
±0.2
±0.2
±0.2
±0.2
±0.4
±0.4
±0.5
±0.2
4.0
4.0
3.0
100
±0.1
Max.
+0.25
+0.30
+0.75
+1.00
+0.50
Unit
mV
±0.25
%FSO
±1.00
±0.5
±0.6 mV
±1.0
±1.0
±2.0
%FSO
±0.5
kΩ
5.0
V_DC
µsec
mV
Specification notes:
1. Reference conditions: supply voltage, V_S = 12V_DC; T_A = 25°C; common mode line pressure = 0 bar; pressure applied to port 2.
For absolute devices only, pressure is applied to port 1 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. Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing
pressure. Maximum linearity and hysteresis for the RDOM250...P is 0.35 %FSO and for the RDOP005...P is 0.5 %FSO.
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 within the operating pressure range and temperature within 0 to +50°C after:
a) 100 temperature cycles, 0 to +50°C.
b) 1.0 million pressure cycles, 0 psi to full scale span.
6. Input impedance is the impedance between V_S and ground.
7. Output impedance is the impedance between + and - outputs.
8. This is the common mode voltage of the output arms for V_S = 12 V_DC.
9. Response time for a zero to full scale span pressure step change, 10 to 90 % rise time.
10. Long term stability over a one year period.
11. If the maximum pressure is exceeded, even momentarily, the package may leak or burst, or the pressure sensing die may fracture.
The proof pressure for the forward gage of all devices in the D4-package is the specified value or 7 bar/100 psi, whatever is less.
12. Absolute devices with improved zero pressure offset values are available on request. Please contact your nearest Sensortechnics
sales office for further information.
E / 11709 / A
3/5
www.sensortechnics.com