RDO Series
Precision compensated pressure sensors
FEATURES · 0...10 mbar to 0...5 bar, 0...5 inch H2O to 0...100 psi, differential, gage or absolute · Temperature compensated · Calibrated zero and span · High impedance for low power applications · Small DIP packages · Sensortechnics PRO services
MEDIA COMPATIBILITY
To be used with non-corrosive, non-ionic working fluids such as clean dry air, dry gases and the like.
SPECIFICATIONS
Maximum ratings Supply voltage VS Lead temperature (soldering 4 sec.) Temperature ranges Compensated Operating Storage Humidity limits (non-condensing) +20 VDC 250 °C
EQUIVALENT CIRCUIT
+Vs
0 to 50 °C -40 to 85 °C -55 to 125 °C 0 to 100% RH
+
-
Common mode pressure all devices up to 25 mbar/10 "H2O all others
50 psig 150 psig
E / 11709 / A
1/5
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RDO Series
Precision compensated pressure sensors
PRESSURE RANGES SPECIFICATIONS1
RDO...P (Prime Grade) devices
Part number
RDOM050...P RDOM100...P RDOM250...P RDOB001...P RDOB002...P RDOB005...P RDOP001...P RDOP005...P RDOP015...P RDOP030...P RDOP100...P
Operating pressure
0...50 mbar 0...100 mbar 0...250 mbar 0...1 bar 0...2 bar 0...5 bar 0...1 psi 0...5 psi 0...15 psi 0...30 psi 0...100 psi
Proof pressure11
1.4 bar 1.4 bar 1.4 bar 2.1 bar 4.2 bar 10.4 bar 2 0 p si 2 0 p si 3 0 p si 6 0 p si 1 5 0 p si
Full-scale span2 Min. Typ. Max.
12.92 mV 25.91 mV 43.1 mV 86.2 mV 86.2 mV 71.8 mV 17.82 mV 59.40 mV 89.10 mV 89.10 mV 99.00 mV 13.05 mV 26.17 mV 43.5 mV 87.0 mV 87.0 mV 72.5 mV 18.0 mV 60.0 mV 90.0 mV 90.0 mV 100.0 mV 13.18 mV 26.43 mV 43.9 mV 87.9 mV 87.9 mV 73.2 mV 18.18 mV 60.60 mV 90.90 mV 90.90 mV 101.0 mV
RDO...H (High Grade) devices
Part number
RDOM010...H RDOM025...H RDOM050...H RDOM100...H RDOM250...H RDOB001...H RDOB002...H RDOB005...H RDOH005...H RDOH010...H RDOP001...H RDOP005...H RDOP015...H RDOP030...H RDOP100...H
Operating pressure
0...10 mbar 0...25 mbar 0...50 mbar 0...100 mbar 0...250 mbar 0...1 bar 0...2 bar 0...5 bar 0...5 inch H2O 0...10 inch H2O 0...1 psi 0...5 psi 0...15 psi 0...30 psi 0...100 psi
Proof pressure11
250 mbar 250 mbar 1.4 bar 1.4 bar 1.4 bar 2.1 bar 4.2 bar 10.4 bar 200 inch H2O 200 inch H2O 2 0 p si 2 0 p si 3 0 p si 6 0 p si 1 5 0 p si
Full-scale span2 Min. Typ. Max.
15.7 mV 24.6 mV 12.5 mV 25.2 mV 42.0 mV 84.0 mV 84.0 mV 70.0 mV 19.5 mV 24.5 mV 17.37 mV 57.90 mV 86.85 mV 86.85 mV 96.50 mV 16.1 mV 25.1 mV 13.0 mV 26.1 mV 43.5 mV 87.0 mV 87.0 mV 72.5 mV 20.0 mV 25.0 mV 18 mV 60 mV 90 mV 90 mV 100 mV 16.5 mV 25.6 mV 13.5 mV 27.0 mV 45.0 mV 90.0 mV 90.0 mV 75.0 mV 20.5 mV 25.5 mV 18.63 mV 62.10 mV 93.15 mV 93.15 mV 103.5 mV
E / 11709 / A
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RDO Series
Precision compensated pressure sensors
PERFORMANCE CHARACTERISTICS1
Characteristics
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 6 Input impedance Output impedance7 Common mode voltage8 Response time Long term stability of offset and span10
9
Min.
-0.25 -0.30 -0.75 -1.00 -0.50
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
Max.
+0.25 +0.30 +0.75 +1.00 +0.50 ±0.25 ±1.00 ±0.5 ±0.6 ±1.0 ±1.0 ±2.0 ±0.5
Unit
Zero pressure offset
mV
%FSO
mV
%FSO
kΩ 5.0 VDC µ se c mV
1.5
3.0 100 ±0.1
Specification notes:
1. Reference conditions: supply voltage, VS = 12VDC; TA = 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 VS and ground. 7. Output impedance is the impedance between + and - outputs. 8. This is the common mode voltage of the output arms for VS = 12 VDC. 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
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RDO Series
Precision compensated pressure sensors
PHYSICAL DIMENSIONS
RDO...G2..., RDO...A2...
0.470 (11.94)
0.550 (13.97)
0.105 (2.67)
0.315 (8.00) typ.
0.280 (7.11) typ.
compensation circuit 0.600 (15.24) typ. 0.01 (0.25)
0.190 (4.83) typ. 0.020 (0.51) typ. 0.100 (2.54) typ. 0.110 (2.79) typ.
third angle projection dimensions in inches (mm)
mass: 2 g
RDO...D4...
1 P1 4 P2 0.470 (11.94)
0.550 (13.97) Ø 0.090 (2.29) typ. 0.135 (3.43) 0.250 (6.35) 0.300 (7.62)
0.430 0.335 (10.92) typ. (8.50) typ.
compensation circuit 0.600 (15.24) typ.
0.120 (3.05) typ. 0.010 (0.25) typ.
0.020 (0.51) typ. 0.100 (2.54) typ.
0.110 (2.79) typ.
third angle projection dimensions in inches (mm)
mass: 2 g
ELECTRICAL CONNECTION
Top View RDO...G2...
Pin 1 identified by chamfered corner P2 +Vs 4 1 out + GND out Vent hole
out GND out + 4
RDO...A2...
Pin 1 identified by chamfered corner 1 P1 +Vs
out + 1 GND out -
RDO...D4...
P1 P2 4
+Vs
Note:
The polarity identicated is for pressure applied to RDO...G2..., RDO...D4... : P2 (backward gage), RDO...A2... : P1 (forward gage) 4/5
E / 11709 / A
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RDO Series
Precision compensated pressure sensors
ORDERING INFORMATION - AVAILABLE LISTINGS
Note: RDO...P = Prime Grade, RDO...H = High Grade
Pressure range 10 mbar 25 mbar 50 mbar 100 mbar 250 mbar 1 bar 2 bar 5 bar 5 "H2O 10 "H2O 1 p si 5 p si 1 5 p si 3 0 p si 1 0 0 p si
Pressure mode Absolute Gage RDOM010G2H RDOM025G2H RDOM050G2P RDOM100G2(P,H) RDOM250G2(P,H) RDOB001A2(P,H) RDOB002A2(P,H) RDOB005A2(P,H) RDOB001G2(P,H) RDOB002G2(P,H) RDOB005G2(P,H) Differential/Gage RDOM010D4H RDOM025D4(P,H) RDOM050D4(P,H) RDOM100D4(P,H) RDOM250D4(P,H) RDOB001D4(P,H) RDOB002D4H RDOB005D4(P,H) RDOH005D4H RDOH010D4H RDOP001G2(P,H) RDOP005G2(P,H) RDOP015A2(P,H) RDOP030A2(P,H) RDOP100A2(P,H) RDOP015G2(P,H) RDOP030G2(P,H) RDOP100G2(P,H) RDOP001D4(P,H) RDOP005D4(P,H) RDOP015D4(P,H) RDOP030D4H RDOP100D4(P,H)
Sensortechnics PRO services: · Extended guarantee period of 2 years · Improved performance characteristics · Custom product modifications and adaptations even for small quantities · Advanced logistics models for supply inventory and short delivery times · Technical support through application engineers on the phone or at your site · Fastest possible technical response for design and QA engineers ... plus other services on request
Sensortechnics reserves the right to make changes to any products herein. Sensortechnics does not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. E / 11709 / A 5/5
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