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Oil Pressure Sensor-Gauge
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The pressure sensor module is composed of a pressure sensor and signal processing circuit directly mounted on the PCB board, mounted on the FR4 circular PCB substrate with a board thickness of 2.5mm. It has the characteristics of small waveform coefficient and high reliability. The module uses the supply voltage as a reference to generate a calibrated and temperature-compensated voltage signal proportional to the input pressure. The working pressure range is absolute voltage50~1000KPa, the supply voltage is 5±0.25V, and the typical current is 2.5 mA.
Features
- Maximum error of 1% in the range of 0~85°C
- Temperature compensation range -40~125°C
- Small size
- High reliability, low drift
Technical Index
Table 1. Operating characteristics (VS=5 Vdc, TA=25°C, P1>P2 unless otherwise noted)
|
characteristic |
Symbol |
Min. |
Typ. |
Max. |
Unit |
|
|
Pressure Range |
Pop |
50 |
--- |
1000 |
kPa |
|
|
Operating voltage |
VS |
4.75 |
5.0 |
5.25 |
Vdc |
|
|
Operating current |
IO |
--- |
2.5 |
--- |
mAdc |
|
|
Minimum pressure offset (0 to 85℃) @ VS=5V |
VOff |
0.44 |
0.5 |
0.560 |
Vdc |
|
|
Full-scale output(0 to 85℃) @ VS=5V |
VFSO |
4.440 |
4.5 |
4.560 |
Vdc |
|
|
Full-scale span (0 to 85℃) @ VS=5V (4) |
VFSS |
3.920 |
4.000 |
4.080 |
Vdc |
|
|
Accuracy (0 to 85℃) |
--- |
--- |
--- |
± |
1.5 |
% VFSS |
|
Sensitivity |
V/P |
--- |
4.2 |
--- |
mV/kPa |
|
|
Response time |
tR |
--- |
1 |
--- |
mS |
|
|
Pre-processing time |
--- |
--- |
10 |
--- |
mS |
|
|
Offset stability |
--- |
--- |
±0.5 |
--- |
% VFSS |
|
|
Power-on time |
tpon |
--- |
--- |
10 |
mS |
|
|
Output cap |
Vo-max |
|
94%Vs |
|
Vdc |
|
|
Lower output limit |
Vo-min |
|
6%Vs |
` |
Vdc |
|
Table2. Maximum rating
|
Name of Parameters |
Symbol |
Max. |
Unit |
|
Maximum pressure |
PMAX |
3400 |
kPa |
|
Burst pressure |
PMAX |
6800 |
kPa |
|
Maximum voltage |
Vmax |
-30 to +30 |
Vdc |
|
Maximum current |
Imax |
14 |
mAdc |
|
Storage temperature |
TSTG |
-50 to 135 |
℃ |
|
Operating temperature |
TA |
-40 to 125 |
℃ |
|
Maximum Output Current |
IO+ |
0.5 |
mAdc |
|
Maximum input current |
IO- |
-0.5 |
mAdc |
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