The server signal shows lightning, and the digital display pen shows the reason for lightning
Regarding the reasons for the digital display test pen to display lightning, including button description, direct detection, indirect detection and breakpoint detection of the digital display test pen lines and breakpoints.
Digital display pen shows the cause of lightning
How to look at the digital test pen, sometimes it is a lightning symbol, sometimes it is a series of numbers after a lightning.
1. Button description
(A key) DIRECT, directly measure the key (far away from the LCD screen), that is, when using the batch head to directly contact the line, please press this button;
(B key) INDUCTANCE, the induction measurement button (closer to the LCD screen), that is, when using the batch head to sense the contact line, please press this button.
Note: No matter how the electric pen is printed, please recognize that the one that is farther from the LCD screen is the direct measurement key; the one that is closer to the LCD is the sensor key!
2. The scope of application of the test pen
It is suitable for direct detection of 12-250v AC and DC and indirect detection of neutral, phase and breakpoints of AC. It can also measure the continuity of non-energized conductors.
3. Direct detection
a. The last number is the measured voltage value; b. When the high-break display value is less than 70%, the low-break value is displayed; c. When measuring direct current, touch the other pole;
4. Indirect detection: Press and hold the B button, and place the batch head close to the power cord. If the power cord is charged, the high voltage symbol will be displayed on the display of the digital display pen.
5. Breakpoint detection: Press and hold the B key and move longitudinally along the wire, and there is no display in the display window, which is the breakpoint.
1. Why does the digital test pen only display 12V, but it is actually 220V. There are two buttons, one is Direct Test and the other is Induction Break-point?
1. The small window displayed by this test pen is a row of preset numbers, not intelligent display. They are 12|36|55|110|220. It may be that you only pay attention to the front, but do not pay attention to the numbers at the back;
2. This kind of pen can only be judged by using experience, it is not very accurate, that is, the numbers you see are for reference only, and most of the live and zero lines are displayed, but they can still be compared according to the display, only by experience. Accumulated to "reluctant" use; this test pen is not recommended.
2. What does 12 36 55 mean when the digital display test pen appears?
A digital display pen, the number 12 36 55 appears during the test, what does this mean?
12, 36, 55, followed by a number and the last is 220. This is the high and low range representing the measured voltage. The voltage displayed at this time is 55V. And so on. However, this digital display pen is not accurate and can only be used as a reference.
3. What does it mean when the test pen shows 12, 36, 55, 110, 220V?
The voltage of 220v is measured by the test pen. If the voltage of 110v is measured, it will display: "12, 36, 55, 110", and so on.
