4921493 Cummins Pressure Sensor 

   The oil pressure sensor is installed on the main oil passage of the engine. When the engine is running, the pressure measuring device detects the pressure of the oil, converts the pressure signal into an electrical signal and sends it to the signal processing circuit. After voltage amplification and current amplification, the amplified signal is amplified by the signal line. The pressure signal is connected to the oil pressure indicator, and the ratio of the currents passing through the 2 coils inside the oil pressure indicator is changed to indicate the engine oil pressure. The pressure signal after voltage amplification and current amplification is also compared with the alarm voltage set in the alarm circuit. When the voltage is lower than the alarm voltage, the alarm circuit outputs an alarm signal and lights the alarm light through the alarm line. Due to the harsh working environment of the automobile, the requirements for the sensor are very strict. In the des…

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