PLO Series
Precision very low pressure sensors / mV-output
FEATURES
· Ranges from 0.5 to 30 inch H2O
gage or differential
· Precision temperature compensated
· Calibrated offset and span
· Extremely low position sensitivity
· Excellent long term stability
MEDIA COMPATIBILITY
To be used with non-corrosive, non-ionic working
fluids such as clean dry air, dry gases and the like.
SPECIFICATIONS
ELECTRICAL CONNECTION
Maximum ratings
Supply voltage VS
16 VDC
Lead temperature (soldering 2-4 sec.)
270 °C
Temperature ranges
Compensated
Operating
Storage
Humidity limits (non-condensing)
Common mode pressure
0...50 (70) °C
-25...85 °C
-40...125 °C
0...95 % RH
1 2 3 4 5 6
Pin
Pin
Pin
Pin
Pin
Pin
1:
2:
3:
4:
5:
6:
N/C
+Vs
+Vout
-Vs
-Vout
N/C
Bottom view
10 psig
Note:
The polarity indicated is for pressure
applied to port B.
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PLO Series
Precision very low pressure sensors / mV-output
PRESSURE SENSOR CHARACTERISTICS1
Part no.
Operating pressure
Proof pressure2
Burst pressure3
PLOH0x5D
0 ... 0.5 "H2O
0 ... 100 "H2O
0 ... 200 "H2O
PLOH001D
0 ... 1 "H2O
0 ... 100 "H2O
0 ... 200 "H2O
PLOH002D
0 ... 2 "H2O
0 ... 100 "H2O
0 ... 200 "H2O
PLOH005D
0 ... 5 "H2O
0 ... 200 "H2O
0 ... 300 "H2O
PLOH010D
0 ... 10 "H2O
0 ... 200 "H2O
0 ... 300 "H2O
PLOH020D
0 ... 20 "H2O
0 ... 200 "H2O
0 ... 500 "H2O
PLOH030D
0 ... 30 "H2O
0 ... 200 "H2O
0 ... 800 "H2O
PERFORMANCE CHARACTERISTICS1
PLOH0x5D
Characteristics
Zero pressure offset
Full scale span (FSS)4
Combined non-linearity and hysteresis5
Temperature effects (0...50 °C)6
Min.
9.0
Typ.
10.0
±0.05
Offset
Span
Offset warm-up shift7
Offset position sensitivity (±1 g)
Offset long term stability (one year)
Input resistance
Output resistance
Response time8
Max.
±0.5
11.0
±0.25
±250
±200
±100
±5
±200
4.5
1.5
100
Unit
mV
%FS
µV
kΩ
µ se c
PLOH001D, PLOH002D
Characteristics
Zero pressure offset
Full scale span (FSS)4
Combined non-linearity and hysteresis5
Temperature effects (0...50 °C)6
Offset warm-up shift7
Offset position sensitivity (±1 g)
Offset long term stability (one year)
Input resistance
Output resistance
Response time8
E / 11734 / C
Min.
9.0
Typ.
10.0
±0.05
Offset
Span
±100
±50
±200
4.5
1.5
100
Max.
±0.5
11.0
±0.25
±250
±200
Unit
mV
%FS
µV
kΩ
µ se c
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PLO Series
Precision very low pressure sensors / mV-output
PERFORMANCE CHARACTERISTICS1 (cont.)
PLOH005D
Characteristics
Zero pressure offset
Full scale span (FSS)4
Combined non-linearity and hysteresis5
Temperature effects (0...50 °C)6
Min.
Typ.
19.0
20.0
±0.05
Offset
Span
Offset warm-up shift7
Offset position sensitivity (±1 g)
Offset long term stability (one year)
Input resistance
Output resistance
Response time8
Max.
±0.5
21.0
±0.25
±150
±200
±50
±10
±100
4.5
1.5
100
Unit
mV
%FS
µV
kΩ
µ se c
PLOH010D, PLOH020D, PLOH030D
Characteristics
Zero pressure offset
Full scale span (FSS)4
Combined non-linearity and hysteresis5
Temperature effects (0...70 °C)6
Offset warm-up shift7
Offset position sensitivity (±1 g)
Offset long term stability (one year)
Input resistance
Output resistance
Response time8
Min.
Typ.
19.0
20.0
±0.05
Offset
Span
±50
±5
±100
4.5
1.5
100
Max.
±0.5
21.0
±0.25
±150
±200
Unit
mV
%FS
µV
kΩ
µ se c
Specification notes:
1. Reference conditions: supply voltage VS = 12 V, TA = 25°C, common-mode pressure 0, positive pressure applied to port B.
2. Proof pressure is the maximum pressure which may be applied without causing durable shifts of the electrical parameters
of the sensing element.
3. Burst pressure is the maximum pressure which may be applied without causing damage to the sensing element or leading
to leaks of the housing.
4. Full scale span is the algebraic difference between the output voltage at full-scale pressure at the output at zero pressure.
The span is ratiometric to the supply voltage.
5. Non-linearity refers to the Best Straight Line fit measured for offset pressure, full-scale pressure and ½ full-scale pressure.
6. Shifts relative to 25°C.
7. Shifts within the first hour of excitation applied to the sensor.
8. Response time for a 0 bar to full-scale span pressure step change, 10 % to 90 % rise time.
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PLO Series
Precision very low pressure sensors / mV-output
PHYSICAL DIMENSIONS
Pin Size
0.010 x 0.020
(0.25 x 0.5)
0.25
(6.4)
0.10 typ.
(2.54)
0.174 to 0.190
(4.4 to 4.8)
Pin 1 2 3 4 5 6
0.21
(5.3)
A
1.08
(27.4)
0.66
(16.0)
0.48
(12.2)
0.55
(14.0)
0.42
(10.7)
B
0.80
(20.3)
0.85
(21.6)
1.10
(27.9)
dimensions in inches (mm)
First Sensor reserves the right to make changes to any products herein. First Sensor 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.
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