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dual oil pressure and voltage gauge
The combo auto gauge of dual oil pressure and voltage gauge is economical and convenient. The function of the machine instrument is to help the motorist master the working conditions of the main corridor of the machine at any time. The machine form shop should be responsible for the conservation, form and use of new batteries. The heating and ventilation device, electric seat moving medium and creator are the power force of electrical appliances.
When the engine is working, If the pointer of the oil pressure gauge is The outside of "0,. Position does not move, which is generally caused by the open circuit of the wire from the ignition switch to the oil pressure gauge or the burning out of the internal resistance coil of the sensor and oil pressure gauge. The general red light is always on, the engine is off, then turn on the ignition lock, remove the wire on the sensor terminal, and the light is still on, indicating that there is grounding between the indicator light and the sensor. If the light is not on, it means that the bulb is burned out or the sensor is faulty. The installation direction of the sensor is correct, which can be used To avoid the hot gas flow of heating bimetallic sheet inside the sensor from directly radiating and heating other parts. After the oil pressure gauge or coolant temperature gauge is installed, the two terminals can be connected freely, that is, one is connected to the ignition switch and the other is connected to the sensor. Because no matter how connected, the current in the circuit remains the same, so it does not affect its indicated value.
After the fuel gauge is installed, it cannot be connected casually, that is, the upper terminal must be connected to the ignition switch, while the lower terminal can only be connected to the sensor. Otherwise, the pointer will always point to "0". Voltmeter: the so-called voltmeter, of course, measures the voltage of the car battery, and the installation of this meter is the simplest. Two power lines and two light bars. It is OK to connect the positive and negative poles of the power supply. Oil temperature gauge / oil pressure gauge: after installing the oil temperature gauge or oil pressure gauge, when the pointer cannot come down, it is also necessary to connect a ground wire on the sensor to the body grounding.
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