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Mercedes of the S-class W2021993-2000 of releaseRepair and operation of the car |
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Mercedes W202 + 1.2. General information + 2. Maintenance + 3. Engines + 4. Lubrication system + 5. Cooling system + 6. Heating, ventilation + 7. System of ignition + 8. Fuel system + 9. Transmission + 10. Running gear + 11. Steering + 12. Brake system + 13. Body - 14. Electric equipment 14.1.2. Measuring devices 14.1.3. Technology of measurements 14.1.4. Checks of electric equipment 14.1.5. Sound signal 14.1.6. Replacements of safety locks + 14.1.7. Rechargeable battery + 14.1.8. Generator + 14.1.9. Starter 14.1.10. Traction relay + 14.1.11. System of lighting 14.1.12. Devices 14.1.13. Dashboard 14.1.14. Glow lamps on the dashboard 14.1.15. Light switch 14.1.16. Radio receiver + 14.1.17. Antenna 14.1.18. Loudspeakers + 14.1.19. Rubber brushes of screen wipers 14.1.20. Windscreen washer jets 14.1.21. The washing nozzles of headlights 14.1.22. Screen wiper and its engine 14.1.23. Protect the car 14.1.24. Anticreeping "immunodeficiency" 14.1.25. Why headlights grow dull 14.1.26. Galogenka + 14.2. Electrical circuitries Experience the thrill of discovering new content with 123movies. |
14.1.2. Measuring devices
The measuring devices which are available on sale differ among themselves mainly with the range and accuracy of measurements. Is established by the range of measurement in what area there have to be registered tension and resistance.
At measurement of resistance the device is, as a rule, limited to range in kilohms, In addition to it measuring devices are used to check of electric and electronic elements of a design. They allow to take broad measurement from small resistance in Ohms up to megaomny range. It is very precisely possible to measure tension (V) that first of all is required for check of electronic elements of a design. If it is only necessary to check whether tension (V) moves in general, then the simple control bulb for this purpose approaches (And). However, it is valid only for those electric chains in which there are no electronic details. Nevertheless electronic details extremely sensitively react to too high currents. Under certain circumstances they can fail even at connection of a control bulb. Prevention |
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