Common faults and solutions of digital ultrasonic detectors

1. The ultrasonic flaw detector cannot be turned on
(1) You should check whether the battery power is sufficient and whether the installation is reliable, or turn it on after directly connecting to the power adapter.
(2) Press the power button several times, but the interval should not be less than half a minute.
(3) Connect the power adapter, and turn on the soft switch of the instrument power repeatedly.
(4) If the above method is invalid, connect the power adapter and charge the battery for half an hour before turning on the machine.
2. The ultrasonic detector automatically shuts down
The instrument has the ability to detect battery power. When the battery power is too low, the instrument will automatically shut down. You can charge the battery for a period of time first, or directly connect to the power adapter, and then turn it on.
3. Ultrasonic flaw detector has no echo
(1) Whether the probe is connected correctly.
(2) Whether the probe mode setting is appropriate, if the probe is set as a dual crystal or penetrating probe, and a single probe is connected, there will be no echo.
(3) Whether the probe line is normal, whether the contact between the probe and the probe line is normal, you can use a tweezers to contact the inner core of the probe seat, if there is clutter, the instrument is good, and the probe line should be damaged.
(4) Whether the parameter settings such as gain, display translation, probe zero point, and signal suppression are appropriate.
(5) Simple processing method when there is no echo: restore the system parameters to the factory state, then connect a straight probe with a new probe line, and detect on a well-coupled thin test block. If there is an echo, it may be the original parameter Improper setting or poor probe wire contact.
4. The keyboard operation of the ultrasonic detector fails
(1) The keyboard is locked (that is, this key should not be operated at this time).
(2) The contact point in the keyboard is not pressed.
(3) Failure to operate the keyboard according to the screen prompts.
Note: Set the "key sound" parameter to "on", press the keyboard of the instrument, and check whether there is a key beep. If there is a key beep, the key is normal.