400kPa Voltage / kPa table
0.2 -> 4.8V for 20kPa absolute -> max pressure
LINEAR => basic math => any intermediate values, or table with any number of points. On paper, or with formula in xls, or Octave / matlab :\n
V=[0 : 0.2: 5]
# For the 400kPa sensor this means 20-400 kPa :
kPa=(V-0.2)*(380/4.6)+20
[V', kPa']
0.00000 3.47826 out of precise range
0.20000 20.00000 min REFERENCE point
0.40000 36.52174
0.60000 53.04348
0.80000 69.56522
1.00000 86.08696
1.20000 102.60870
1.40000 119.13043
1.60000 135.65217
1.80000 152.17391
2.00000 168.69565
2.20000 185.21739
2.40000 201.73913
2.60000 218.26087
2.80000 234.78261
3.00000 251.30435
3.20000 267.82609
3.40000 284.34783
3.60000 300.86957
3.80000 317.39130
4.00000 333.91304
4.20000 350.43478
4.40000 366.95652
4.60000 383.47826
4.80000 400.00000 max REFERENCE point
5.00000 416.52174
MAP-board 1.0
Important: the pinout of internal sensor can be found on GenBoard/Manual/Wiring/ManifoldAbsolutePressure
Pin1 (of the black SSC-male connector) is the leftmost on the above picture (you can verify the pin numbers printed on the female).
The packaged sensor is casted with epoxy, very durable, you can step on it or melt the external softer black part without damage to the internals.
The 400kPa version is recommended for > 130kPa (1.3bar, 18psi) boost. On the 12V, 400kPa version, there are some simple extras onboard, like
- regulator (so it can be powered from 12V and there is a 5V output)
- thermometer (Temperature output)
You can tell the different versions by the number of actually present SSC pins (3/4/5).
Pinout of the 12V, 400kPa version - most popular
Note that populated this way, the supply has a wide range, and the 5V is output, not input. Applying 5V to the 5V output is not supported, it might damage the unit. Use the 5V version if you want to power something from 5V (max 50mA). This version has (all) 5 male pins (none missing).
| SSC pin | recommended color | signal | range | note |
| 1 | white | MAP output | 0.2 .. 4.8V | 20..400kPa |
| 2 | brown | GND | 0V | |
| 3 | red | 5V out | 5V | max 80mA. Useful for HALL, TPS, etc... |
| 4 | blue | temp out | 0.5 .. 4.5V | NTC, similar U(T) as CLT |
| 5 | grey | +12V in | 6.3 .. 16V |
Pinout of the 5V, 400kPa version
| SSC pin | recommended color | signal | range | note |
| 1 | white | MAP output | 0.2 .. 4.8V | 20..400kPa |
| 2 | brown | GND | 0V | |
| 3 | red | 5V in | 5V | max 10mA |
| 4 | blue | temp out | 0.5 .. 4.5V | NTC, similar U(T) as CLT |
This version has 4 male pins (out of 5: 1 missing). The first 3 pin is compatible with the MPX4250AP pinout.
Pinout of the 5V, 250 kPa version
| SSC pin | recommended color | signal | range | note |
| 1 | white | MAP output | 0.2 .. 4.8V | 20..250kPa |
| 2 | brown | GND | 0V | |
| 3 | red | 5V in | 5V | max 10mA |
This version has 3 male pins (out of 5: 2 missing). Note that there is no temperature output in this version.
See also
- GenBoard/Manual/Wiring/ManifoldAbsolutePressure - internal version
- GenBoard/Manual/PneumaticTube - generally 6/4 mm tube is used.
- GenBoard/Manual
- GenBoard/Manual/Config/ManifoldAbsolutePressure
- WebShop (see Genboard, sensors)