SENSORS
Delphi Fuel Level Sensor
The Delphi Fuel Level Sensor is a magnetic, non-contacting angular
position sensor that converts rotary motion into an electrical signal
to provide accurate fuel level measurement and enable reliable fuel
gauge readout. Its small, modular design allows a wide range of
applications and its calibrated output signal compensates for
component and assembly variations. Design features enable
dependable performance and durability.
The Fuel Level Sensor's linear output voltage is directly proportional
to the sensor's field, perpendicular to the sense element. Noncontact performance is made possible by state-of-the-art linear
programmable, fully integrated Hall effect and Anisotropic magneto
resistive (AMR) technologies. Rotating magnets generate Hall
voltage with a sine wave response signal, with zero when the
magnets are parallel to the sense element and plus/minus when the
magnets are at angles to the sense element. The sensor operates in
a linear region of the sine wave response signal.
Delphi Fuel Level Sensor
Benefits
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Low cost with electrical interface that powers and reads Hall effect output signal
High volume manufacturing processes help achieve competitive cost
Can be easily modified to meet specific customer requirements
Protection against contamination and fuel exposure
Lower drive current minimizes system power consumption
High resolution linear output signal with low hysteresis for improved system performance
Electro-Magnetic Capability (ECM) compliance
Available with 2-wire Pulse Width Modulation (PWM) interface, and may be designed for 3-wire PWM or ratiometric
interfaces for application flexibility
Typical Applications
The Delphi Fuel Level Sensor is ideally suited for a wide range of automotive and non-automotive in-tank
applications for gasoline or diesel fuels with elemental sulfur and solid contaminants, and flex fuels.
Specifications
Sensing angular range
Operating temperature
Angular position accuracy
Electrical interfaces
-45° to 45°
-40°C to 90°C
+/- 2.5%
• 2-wire, PWM, current output (preferred)
• 3-wire, 5 V supply, analog ratiometric output
• 3-wire, 12 V or 5 V supply, PWM output
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Delphi Fuel Level Sensor
Performance Advantages
The Delphi Fuel Level Sensor features a proven magnetic circuit technology that has been used in high
volume absolute position sensor applications for more than 10 years.
The non-contacting design of the sensor maximizes product life by eliminating signal deterioration due to
contact wear, ink failure or dendritic growth. Its low current draw with high resolution output signal may be
calibrated for the angular travel of a specific application to compensate for assembly variations.
The Delphi Advantage
Delphi has one of the industry's most complete portfolios of sensors. Delphi has the experience and the
expertise to provide extremely reliable, highly accurate and very cost competitive sensors for a wide range
of applications. And, Delphi can provide a single component or a multifunctional “smart” module to meet
specific customer needs.
As a global leader in engine and powertrain management systems technology, Delphi can help
manufacturers around the world meet emissions requirements, improve fuel economy and enhance
performance. Delphi is a source for high value solutions and our systems expertise is built into every
product. Delphi's flexible engineering approach encourages collaboration. And, Delphi has a thorough
understanding of automotive markets around the world and a global network of resources.
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