how to hook up tachometer

• 2022-04-11

How to hook up tachometer ? Today let us introduce it . Since there is no speed reserved wire, the speed plug can only be cut off and connected! When I connect wires here, I use soldering directly. I'm mainly afraid that poor contact will burn the insurance in the future! After welding, make sure to tie it up with drain tape! The instruction manual of the tachometer says to find the negative pole of the low-voltage line. In the figure, there are two lines of black tape. The green one is the positive pole and the white one is the negative pole. Directly cut open the wire skin and connect the line. Blue is the control line to reduce the brightness of the screen. Directly connected to the positive pole is this function. All wires are connected. The idle speed is displayed after starting the car, which is normal.

In order to check and adjust the engine, monitor the working conditions of the engine and other electrical appliances, and better grasp the shift timing, an instrument that can directly reflect the engine speed, namely the engine tachometer, should also be installed on the instrument panel of the vehicle. There are two kinds of engine tachometers: mechanical and electronic. Electronic tachometer has the advantages of stable indication, simple structure and convenient installation, so it is widely used. There are three ways for the electronic tachometer to obtain the speed signal, namely, from the ignition system, the engine speed sensor and the generator. There are many models of electronic tachometer.

For charging without distributor, the other end of the cylinder line is directly connected to the high-voltage package or the integrated high-voltage module. Generally, there is a thin input line on the high-voltage package or the integrated high-voltage module, one is the power supply, and the other two can be used as the signal line. Take any one of them. However, it should be noted that since we take half of the point signal, the setting of frequency division value is different from that with distributor, The frequency division value of the 4-cylinder car with the belt distributor is set to 2. If it is not, it should be set to from elsewhere. The first problem should be to find the high-voltage package, and then touch the melon to find the signal line.