Oscilloscope routine maintenance tips

The oscilloscope can convert the invisible electric signal into a visible image so that people can study the changing process of various electric phenomena. We all know that daily maintenance of the oscilloscope can be more convenient to use and increase the service life. So how do you maintain it?

1. In order to ensure the normal use of the equipment, please be sure to use within the environmental scope specified in the product specification;

2. When the probe or test lead is connected to the power cable, do not insert or pull it;

3, to minimize the move, and be careful to light: The LCD screen is the oscilloscope the most vulnerable parts, due to its special structure, in use to avoid hard objects knocked and severe vibration, not live mobile, can not just The power is turned off immediately. If you must move, remember to cut off the power and wait for a while before moving it.

4, to avoid direct sunlight Display: Sun exposure, not only affect the observation, but also will make the LCD screen aging, luminous rate decreased, shortened life expectancy, usually when placed with a dark cloth cover;

5, reduce the number of switching as much as possible: every time the instrument is powered on, it will be subject to an instantaneous high-current impact. In addition, due to the use of some inductive and capacitive components on the circuit, overvoltage and overcurrent phenomena may occur at the moment of power-on, and components may be easily damaged. Some faults are often the moment when the switch starts up.

6. Pay attention to the fact that the machine should be shut down immediately if there is a fault: If smoke, burnt smell or grating abnormality occurs during use, the machine should be shut down immediately. Professionals should repair it to avoid further losses.

7. Periodically wipe the outer wall of the instrument; care should be taken to prevent moisture erosion: Not only does moisture reduce the insulation properties of high-voltage components, causing ignition, heat, and other undesirable phenomena, but metal printed copper foil and component pins are susceptible to corrosion and damage. In wet and mildew rainy days, even if the instrument is not used, it should be periodically turned on for 1 or 2 hours to use the heat of the machine to disperse the moisture. In wet South China, it is necessary to pay attention to the instrument once a month, once every half a month in the rainy season. ;

8. Pay attention to heat dissipation in the process of use: Under good ventilation and heat dissipation conditions, normal continuous use for 10 to 12 hours is perfectly acceptable, but there are certain restrictions on the internal components and the temperature of the entire unit, so the machine When used, do not allow the vents to become blocked, or cover them in a wooden case with a plastic cover or place them on top of an upholstered mattress or too close to the wall. Note that when using in winter, the instrument should not be close to the stove and heating. It is recommended that the machine be turned off for about 30 minutes after continuous use for 3 to 4 hours;

9, regular self-calibration of the machine through the calibration can promptly identify existing problems, and can effectively reduce the measurement error caused by the environment.