auto meter digital water temp gauge

• 2022-09-29

The auto meter digital water temp gauge can see the water temperature directly. There is a exact number to show the water temperature. Some users like the digital water temp gauge. So they can buy a new auto meter digital water temp gauge to install by themselves.

The water temperature display of automobile engine is mainly composed of two components: indicator and water temperature sensor. As for water temperature sensors, strictly speaking, they can be divided into two categories. Whatever its internal structure is thermistor, its characteristic is that the lower the temperature is, the higher the resistance value is, and the higher the temperature is, the lower the resistance value is.

The principle of the first type of water temperature sensor is relatively simple. It changes the resistance of the sensor through the change of its internal resistance value and changes the current passing through it, which is reflected in the change of the water temperature gauge and indirectly tells people the working temperature of the engine.

The second type of water temperature sensor has no change in structure, but its function is to provide an analog signal of temperature change to the engine control unit and synchronize the water temperature information to the instrument cluster.

The range of the automobile water temperature gauge is generally between 60 ℃ and 110 ℃, and the boiling point of most ethylene glycol antifreeze is about 110 ℃. Generally, when the automobile engine is working, the water temperature fluctuates between 85 and 100 degrees. Under normal operating conditions, the value is in a very good state in this range on auto meter digital water temp gauge. However, under some high load conditions, the number will rise a little, which is normal.

Because after the car stops for a long time, the oil in the engine basically flows back to the oil pan, and the oil film on the friction pair surface of the engine is basically damaged. At the moment of starting, the friction pair has generated relative movement, and the oil pump has not sent the oil to the friction pair surface in time. At this time, dry friction occurs on the friction pair surface, so the engine has the largest wear amount at the moment of cold start! Therefore, it is necessary to warm the car and observe the temperature of the auto meter digital water temp gauge in time.