What is the use of a digital stylus?
Answer:The correct use of the digital stylus should be mastered as follows.
(1) button description.
(A key) DIRECT, direct measurement button (far from the LCD screen), that is, with the pen directly to contact the line, please press this button.
(B) INDUCTANCE, inductive measurement button (closer to the LCD screen), i.e., press this button if you use the tip of the pen to touch the line inductively.
Note: regardless of how the pen printed on the word, please remember that far from the LCD screen for the direct measurement of health; closer to the LCD for the induction button can be.
(2) digital stylus is suitable for direct detection of 12 ~ 250 V AC and DC and indirect detection of AC zero line, phase line and breakpoints. It can also measure the on-off of uncharged conductors.
(3) direct detection.
① The last figure is the measured voltage value.
(2) When it is not up to 70% of the display value of the high break, it will display the low break value.
③ Measurement of direct current, you should touch the other pole.
(4) Indirect detection: hold down the B key, the pen near the power cord, if the power cord is charged, the digital pen display will show the high-voltage symbol on the display.
(5) Breakpoint detection: hold down the B key, move along the wire longitudinally, no display in the display window is the breakpoint.
Alternative use of the stylus
(1) can be used to carry out low-voltage phase verification, measurement line between any wire whether the same phase or phase. Specific method is: stand on an object insulated from the earth, hands holding a stylus, and then in the two wires to be tested on the test, if the two stylus luminous is very bright, the two wires for the phase; Conversely, it is the same phase, it is the use of stylus neon bubbles in the difference in voltage between the poles of the neon bubble and its luminous strength is directly proportional to the principle to discriminate.
(2) can be used to distinguish between alternating current and direct current. In the test with the stylus, if the stylus neon bubble in the two poles are luminous, is the alternating current; if the two poles in only one pole luminous, is the direct current.
(3) can determine the positive and negative poles of DC. Will be connected to the stylus in the DC circuit test, neon bubble light that pole is the negative pole, does not light a pole is positive.
(4) can be used to determine whether the DC ground. Insulated to ground in the DC system, can stand on the ground with a stylus contact DC system in the positive or negative pole, if the stylus neon bubble does not light up, there is no grounding phenomenon. If the neon bubble is bright, it shows that there is a grounding phenomenon, and its bright such as the tip of the pen, then the positive pole is grounded. If the light is at the end of the finger, it is negative grounding. However, it must be pointed out that in the DC system with a ground monitoring relay, can not be used to determine whether the DC system is grounded!
