Oscilloscope is a widely used electronic measuring instrument.It can transform the invisible electrical signals into visible images, which is convenient for people to study the changing process of various electrical phenomena.Therefore, oscilloscope is regarded as the engineer's eye;Then what are the common faults and precautions in the use of oscilloscope?The following share oscilloscope in the use of typical faults and treatment methods:
The oscilloscope has an independent power supply module for the main board and each function module, so it is necessary to pay attention to the safety of electricity consumption.1. Use the original power cord of oscilloscope;2, confirm the stability of the power grid.When there is high-power electrical access in the power grid, first turn off the oscilloscope, unplug the power cord, and use it after the power grid is stable;3. When starting up: plug in the AC power cord first, and then press the power button to start up;When power off: first press the power off key to close the oscilloscope, and then unplug the AC power cord;4. Pay attention to the operating environment of the instrument and dust it regularly.
Generally, channel failure is caused by static electricity or excessive signal. In serious cases, acquisition board and main control board will be burned down.Due to the difficulty of maintenance, long cycle and high cost, special attention should be paid in use: 1. It is strictly forbidden to touch the channel interface of oscilloscope with hands or other parts of the body to prevent electrostatic damage; 2.2. The signal amplitude shall be estimated before use, and the probe with appropriate attenuation ratio shall be used for testing;3. Connect the probe well before passing the signal during the test;After the test, disconnect the test signal and remove the probe.
Similar to computers, oscilloscopes have their own operating system to manage and control hardware and software resources.Common oscilloscope system problems include system crash, driver loss, data loss, disk/memory corruption, and so on.
Problems to be noted in use: 1. Regularly clean the system, conduct overall anti-virus, and backup the system; 2. Do not operate on system files.Improper operation of system files may lead to system crash; 3. pay attention to the switch sequence, do not directly unplug the power cord.