Car on-board computer BK 21 - description, design, reviews
BK 21 is an on-board computer capable of monitoring the operation of the main and additional vehicle systems. It has a compact rectangular body with a built-in screen and control keys. Mounted on the dashboard with suction cups or on a regular place 1DIN.
BK 21 is an on-board computer capable of monitoring the operation of the main and additional vehicle systems. It has a compact rectangular body with a built-in screen and control keys. Mounted on the dashboard with suction cups or on a regular place 1DIN.
Features
The computer is manufactured by Orion. Its supply voltage range is from 7,5 to 18 V. In operating mode, the device consumes about 0,1 A, in standby mode - up to 0,01 A.
The trip computer is capable of measuring voltage in the range from 9 to 12 V. It also determines the temperature not lower than -25 °C and not higher than +60 °C.
Car on-board computer BK 21
The digital graphic display has a backlight with adjustable brightness levels. It can display up to three screens. The device memory is non-volatile. Therefore, all data will be saved even if it is disconnected from the battery.
The device has a USB connector. With it, the device is connected to a PC to update the firmware via the Internet.
The BK 21 kit, in addition to the device itself, includes detailed instructions, a connector, an adapter, a cable and a suction cup for mounting.
connection
The on-board computer BK 21 is installed on cars with engines:
- injection;
- carburetor;
- diesel.
The connection is made via OBD II. If the vehicle assembly includes a different type of diagnostic block, then a special adapter is used, which is included in the BC 21 kit.
Wiring diagram
The device is compatible with the following machines:
- Chevrolet;
- "IZH";
- "GAS";
- "VAZ";
- "UAZ";
- Daewoo.
A detailed description of models compatible with the device is in the instructions.
The main function
The device has several basic modes, including:
- clock and calendar;
- total fuel consumption;
- the time during which the movement continues;
- the speed at which the car is traveling at a particular moment;
- mileage;
- engine temperature;
- remaining fuel in the tank.
The computer is able to calculate the average:
- fuel consumption in liters per 100 km;
- speed.
Modes can be easily changed by pressing the side keys.
Equipment
The device includes a system that instantly responds to the occurrence of a problem. It will work if:
- it's time to go through MOT;
- voltage exceeded 15 V;
- the engine has overheated;
- speed is too high.
If an error occurs, the error code will be displayed on the screen and an audible signal will be given. Using the control buttons, the fault can be reset immediately.
Advantages and disadvantages
The advantages and disadvantages of any technical device can be fully appreciated only during its operation. The owners of the on-board computer BK 21 shared them in their reviews.
Among the advantages mentioned:
- Affordable price. The device is one of the most budget among similar devices.
- Easy installation. With the help of suction cups, the computer is mounted on any part of the dashboard or windshield.
- Convenient design and clear control.
- It is possible to calibrate for a sensor that determines the level of fuel in the tank.
- Large font on the display.
- Versatility. In addition to the connector for OBD II, there is an adapter for connecting to a 12-pin block and separate sensors.
Among the minuses are:
- Inability to connect the device to parking sensors.
- In the event of a malfunction, the buzzer sounds. The warning is not delivered by a voice message.
- The computer does not decrypt error codes. You have to check the plate that comes with the kit.
Also, some users noted that over time, the adhesion of the suction cups to the surface became weaker.
