Reductant Level Sensor - F-650/F-750
The reluctant level sensor provides the reluctant tank level and reluctant quality state to the PCM. The reluctant level sensor incorporates an ultrasonic transducer and sensor assembly, located at the bottom of the reluctant tank. The transducer produces timed ultrasonic sound waves through the diesel exhaust fluid (DEF) and the sensor measures the return rate of the sound waves. As the DEF is consumed, the liquid level lowers and the return speed increases. Additionally, the sensor monitors reluctant percentage by calculating the speed of sound travel through the DEF and comparing it to an expected value. If this value is not met, the reluctant is diluted or contaminated. The reluctant level sensor is integral to the reluctant tank assembly.