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Instrumentation
To control the operation of the lubrication system and cooling engine, battery, presence of Topley- VA is used in the tank gauging devices, which include: pointers water temperature, pressure oil, the fuel level in the tank, an ammeter, and alarm SIG- the analyzers water temperature and oil pressure. Ammeter. To monitor the battery used battery ammeter. The ammeter shows the power charging and discharge current in amperes and included in the circuit battery — generator sequence. Is the amp the meter of the following main parts: body, brass tires, the contact screws, a permanent magnet, the armature with the axis arrow and scale . Arrow fixed on axis together with the anchor. The anchor under the action of artificial magnet in the absence of current in the bus is held along it, and the needle is at the zero division of the scale. When the passage of electric current through the brass rail anchor tends to be established along established bus around the MAG- netic flux, turning to a certain angle togeth- those with an arrow. The size and direction of angle of rotation of the armature with arrow depend on the strength and direction of the current in the bus. From- klonnie arrow to the "+" sign shows the battery charge, and to the sign " – " digit. Ammeter not included in starter circuit and audible SIG- Nala, as the current consumed by these devices is great value which the ammeter is not intended. The pointer of the coolant temperature. For ensure the normal operation of the engine the driver must to control the temperature of the coolant in hygiene refrigeration and if necessary adjust it with the help of blinds. Temperature control cool- ing liquid is the temperature gauge, standing from the sensor, mounted in the cylinder head, and the pointer on the instrument panel. Basic details sensor: casing, thermister and pru- Gina. Thermister made in the form of a disk, and the conductivity is capacity varies with change of temperature. At higher Institute temperature the conductivity increases, and when cooling decreases. In the index there are three coils, one of them included consistently thermister, and the other two through the resistor connected to the mass. The resistance of the latter two to the cat ILS practically do not change, so the current is also permanent. The arrow of the index attached to the axis together with a permanent magnet under the action of the result milking the magnetic field coils. When the temperature of the coolant magnet arrow deflected under the action of changing- the recovery destination field. Magneto's one weakness- . The pointer of the coolant temperature indicators do not generate radio interference, accurate and reliable in work. In addition to the temperature gauge on the studied vehicles the pole install emergency alarms, warning giving drivers an unacceptable increase in the temperature- ture of the fluid in the cooling system. The emergency detector consists of a sensor, is installed provided in the radiator top tank, and warning light on a guard of devices. The sensor of the detector consists of housing with brass case, in which motionless limited contact connected to the mass, and the movable contact, When the temperature is higher than rated (105° With the beam metal plate is bent so that the contacts are closed, including in the circuit of the indicator lamp. The indicator of oil pressure in the lubrication system of the engine consists of a transmitter and indicator. The sensor consists of a housing with a diaphragm, cap and floor sokovogo rheostat. The movable contact of rheostat is connected with the diaphragm. If you increase the pressure under the diaphragm it flexes, and with it moved the rheostat under- rolling equipment contact, changing the resistance. A pointer on your pointer device similar topics the temperature of the coolant. To reduce the influence of temperature on the accuracy of the readings is one of ka- carcasses connected with a mass through a resistor, which is the- temperature compensator. For additional control over the oil pressure unit Tanglewood detector alarm oil pressure that consists of a warning lamp on the shield- ke devices and sensor. The sensor consists of a housing, diaphrag- we, contact device, springs and isolated output. When the pressure in the lubrication system is installed below- tion the limit contacts to be closed and the bulb will light up. When pressure increase deflects the diaphragm and the contact time struggle everyday — the light goes out. The index of level of fuel in the tank is designed to con- trol over the level of fuel in the tank. Electromagnetic decree- tel consists of a transmitter and indicator. Sensor placed on the fuel tank and consists of a sliding REO- stat, located on the outside of the tank, and a float lever, inside of the tank. While reducing Topley- VA the resistance, turn the rheostat decreases, and by increasing the level increases. The pointer re- Yong as the index of temperature of a cooling liquid bones. The current and the magnetic field of the coil will be left on the the network from the position of the slider of the rheostat. When the floor- Mr. tank winding of the rheostat is included in its entirety, and current in the left coil will be small. The resulting magnetic field of the three coils will turn the magnet with the arrow on the mark "P" (full tank). With re- making the fuel level, the resistance is reduced. Power current left coil increases, and the resulting MAG- magnetic field to move the magnet the arrow in the direction zero. |
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