hour meter tachometer gauge

• 2022-03-15

This timer allows us to easily monitor the running time of the engine. It has five black hours and the tenth red sixth digit. When connected to 12V, it will automatically engage. The central witness turns the red pulse to prove that the timer is running.The central witness turns the red pulse to prove that the timer is running. Once calculated, the hours cannot be deducted or moved quickly.To prevent the accumulation of timing hours when the engine is not actually running, refer to the accessories tab.

In a car, there are two largest gauges, the speedometer and the tachometer. They are generally symmetrically installed in the center of the instrument panel, occupying most of the instrument panel. The speedometer is of great concern to everyone. On the one hand, it is used to display the speed of the car to avoid speeding violations; on the other hand, it can display the mileage. But many people don't know how to use the tachometer, and even think it is redundant. In fact, the tachometer is very important to the car. Today we will talk about the use of the tachometer of the car.

If the vehicle speed reflects the overall working condition of the car, then the engine speed reflects the working condition of the engine, which is one of the most important parameters of the engine. The various properties of the engine are directly related to the rotational speed, such as speed characteristics, load characteristics and universal characteristics. The idle speed, maximum speed, and economic speed range of the engine are closely related to the daily use of the car. Correct and reasonable control of the engine speed can better control the car. For example, the car computer will determine whether to shift the automatic transmission according to the relationship between the engine speed and the vehicle speed, and the manual transmission model should shift according to the engine speed.

Car tachometers are generally pointer-type instruments, and very few are digital. Its measurement unit symbol is r/min, and the unit name is revolution per minute. The range of the tachometer reflects the speed range of the engine, in which the white part of the scale is the safe speed range, and the red part is the dangerous speed range. In order to better use the vehicle, some performance cars and diesel cars also mark the green area on the tachometer, which is the most economical range for the engine.