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PressureSensors / OilAndFuel

Oil/Fuel Pressure Sensor

The fuel/oil pressure sensor is a low cost, high performance, media isolated Pressure Transmitter, designed for the harsh environment of Autosport applications. monolithic silicon element coupled with high level output ASIC cuircuitry assures excellent accuracy and long term stability, protected within a rugged, stainless steel housing.

Suitable for the measurement and Data Logging of fuel, water, air and hydraulic systems, the sensor offers a choice of pressure ranges calibrated during the manufacturing process. The sensor is supplied as standard with a 0-10 car cable pressure range.

With additional EMC protection, low static and thermal errors and high resistance to shock and vibration, the sensor assures trouble free operation at temperatures up to 125^oC

Technical Data

Accuracy at 25°C < ±0.5%BFSL

Stability (1 year) < ±0.1%

Overange pressure 2* rated pressure

Burst Pressure 5* rated or 20000psi (whichever is lower)

Pressure cycles > 10 million

Operating temperature -40 to +105 °C

Installation

There are 3 leads that come from the sensor: the red lead should be attached to the +5v supply from the Data Logging Unit, the black lead should be connected to the ground connection and the white lead should be connected to an analogue input.

To convert the output voltage of the sensor to a pressure, use the following formula:

Pressure [Bar] = (x - 0.5) / 4 * 10

Specifications

Dimensional data

Thread size = 1/8" NPT

Connection Colour Codes

Connecting the sensor to a data logger (DL1 or DL2) or DASH2

If the sensor has been supplied by Race Technology with a cable attached then wires from the sensors are:

• Red - Connect to the +5v reference output from the DL1/DL2/DASH2
• Back - Connect to ground (0v) on the DL1/DL2/DASH2
• White - Signal output from the sensor, this can be connected to any of the analogue inputs on the DL1/DL2/DASH2

If the sensor is supplied without cable then please refer to the pin out above.

Equation to convert from a voltage to a pressure

Note that if you are connecting the sensor to a DASH2, then the equation can be simply selected from the drop down list in the configuration software. Similarly, if the sensor is to be attached to a DL1/DL2 then the equation can be simply selected from the relevant section in the variable manager of the analysis software. These equations are just included for completeness, or in case the sensor is going to be used with a 3rd party product.

Pressure [Bar] = 2.5 x input - 1.25 Pressure [PSI] = 36.25 x input - 18.125