User guide

Ultrasonic Fuel Sensor User Guide
ACCEUF100UG001 - 9 -
2.3. Product Feature
2.3.1. High Accuracy
The measurement resolution of the fuel level is 0.2 mm and the level accuracy is 3 mm. The sensor
automatically performs the temperature compensation in the range from -40℃ to 80℃. This
ensures the measurement accuracy even when the environment temperature is extreme high or low.
2.3.2. Better Long Term Stability
The fuel sensor adopts the method of ultrasonic measurement, a non-contact measurement that is
different from the current widely used direct contact method such as the fuel float sensor, fuel
pressure sensor and magnetic fuel sensor, so as to avoid corrosion and pollution by the fuel and keep
excellent long-term stability of the measurement.
2.3.3. Easy Installation and Maintenance
The sensor is installed at the bottom of the fuel tank, which requires no change to the original fuel
tank measuring system and the fuel tank. This allows the original vehicle fuel gauge to work
undisturbed and no warrant issue.
2.3.4. Environmentally Friendly
The non-contact measurement does not require making hole to the fuel tank or modifying the fuel
tank and thus avoids the fuel contamination.
2.3.5. Reliability
It can work perfectly in harsh environments.
2.4. Advantage Over Other Fuel Sensors
2.4.1. Capacitive Fuel Sensor
This type of fuel sensor is susceptible to sticky grease stains and causes measurement error. It has
potential risk of producing electrical spark. Drilling installation causes pollution and warranty
issue.
2.4.2. Resistive Fuel Sensor
This type of fuel sensor uses mechanical method to measure fuel level. It is easy to get big
measurement error and delay. It is vulnerable to corrosion and pollution because of long-term
exposure to the fuel, which will lower the measurement accuracy. Drilling installation is used.
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