Alternative ways to use the pen
In addition to determining whether an object is electrically charged, the stylus has several other uses:
(1) It can be used for low-voltage phase verification, measuring whether any conductors in a line are in phase or out of phase with each other. Specific method is: stand in an object insulated from the earth, hands each 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 different 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 of discrimination.
(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) You 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!
