Improved automobile instrument panel
There are many kinds of watches, completely according to personal needs. Ask me what is necessary? It's really hard to answer. Because most of the original cars have good watches, although they are a bit crude, and even some original cars are just a signal light, that is, they will give you a red light warning as long as they enter the danger zone. If necessary, install a watch instead of a lamp. Some people think that the exhaust thermometer is the first important thing, which also has his reasons. If you are rich and like to make your car look good, you can install all the watches! ! There are many brands of instruments, ranging from ordinary brands of tens of yuan to watches of more than 3000 yuan. The most famous one is Delphi, which used to be a company specializing in aircraft instrumentation. As for the value, who knows, it is so expensive, which includes both quality and brand! The more expensive brands are APEXI, PIVOT, AUTO METER and so on. But some common brands of watches are ok. As long as it is genuine, basically it should be no problem to use it for 1-2 years. This paper will use an ordinary brand list (car regulations) as a model for everyone. Note that this brand is made by AUTO GAUGE in Taiwan Province Province, which is easily confused with American-made AUTO METER.
These watches are all similar in installation and the principle is relatively simple. Some instruments can be connected, but some advanced instruments need one more step-installing the controller. You bought a watch, except the watch, some wires and small screws, which are the sensors of the watch. All these must be installed.
How to fix the watch before installation? Where is it fixed? Ordinary watches give a shelf, no shell, exposed lines, ugly. There are special instrument racks that can be fixed on the A-pillar, and the air conditioning ports of some cars can also be equipped with instruments. When they are fixed, they can be tightened or stuck in a certain position. Tools you need, such as knives, pliers, thin wire, wrenches, electric pens (watches) for cars, etc. It will be better and cheaper if you have professional electrical tools.
In fact, every watch has instructions, and I will only give you a general explanation here.
You don't need any professional electrician skills to install this thing, but you should also know basic knowledge.
1, voltmeter: first disconnect the battery negative power cord; There are generally four interfaces on the back of a watch. One is the positive electrode for lighting in the watch, which can be connected to the edge of the headlight, and the watch will light up as soon as the light is turned on. One is the ground wire, which is connected to the car body; There is also an anode connected to the ignition switch (also called ACC); There is also a ground wire next to this one.
2. Oil pressure gauge: disconnect the negative pole of power supply first; The oil pressure gauge must be equipped with a pressure gauge sensor. Find the location of the crude oil pressure sensor of your car and replace it with the original one. Some sensors of oil pressure gauges cannot be directly installed on the original engine and need an adapter. Generally, a base is added under the oil filter, and then several interfaces are enough. Just choose one oil pressure sensor, and the other holes can be left to the oil cooler in the future. Pay attention to sealing. Ensure that the sensor can be installed and reloaded. The main job is wiring behind the desk; Power supplies such as lighting connectors in the table; The bracket is connected with the negative pole or the vehicle body; There is also a positive contact wire (ACC), and there is a negative electrode next to it; The last one is connected to the sensor. Note: This instrument is electronic. If it is a mechanical oil pressure gauge, there will be an oil pipe connected to the gauge instead of an oil pressure line. 3. Water/oil temperature meter: first disconnect the negative pole of the power supply; The installation of these two instruments is too similar, both need to install sensors. Some water temperature sensors can be directly installed in the original position of the engine water temperature sensor (generally, cars have two water temperature sensors, one for providing data to the computer and the other for indicating the water temperature of the dial, so we need to replace the dial. Sometimes this thing can't be directly installed on the engine, and you need an adapter. The water temperature can be connected to a rubber hose, which is a monopoly. The oil stability sensor may need to be rotated or welded in some parts of the engine, which is troublesome and can't be done by itself. Sometimes the water temperature meter is used instead of the oil temperature meter, and the temperature is similar. The wiring behind the instrument is similar to the electronic oil pressure gauge above: the positive pole of the lighting lamp; The bracket is connected with the cathode; ACC anode; Ground wire; Connecting wire for oil/water temperature sensor. 4. Boost meter: disconnect the negative pole of the power supply first; This watch is a must-have for a worm-gear car. Otherwise, if the pressure of your car is too high, it will easily lead to danger, such as turbine explosion or direct engine explosion. The pressure gauge uses a plastic hose to connect the engine and the pressure gauge. So, first of all, make sure that you can find an interface for inserting this plastic hose at the intake position of the engine. You must solve this problem after the turbocharger, preferably near the engine, for example, near the throttle, otherwise you don't have to look at it below. After finding the interface, pull the other end of the plastic pipe to the cab and connect the meter, and there will also be a jack interface; Illuminating lamp anode; The bracket is connected with the cathode; ACC anode; Ground wire;
PS: Some meters with controllers can be connected by finding the correct data line, red line and yellow line according to the instructions. In addition, not all lines have to be connected. If you buy a second-hand watch and there is no manual, you can find the manual online according to the brand and model.