Le but de mesure électrique stylos
(1) It can be used for low-voltage core phase measurement to determine whether any wires in a circuit are in in phase or out of phase. The detailed method is to stand on an object insulated from the ground, hold a measuring pen in each hand, and then walk through the two wires to be tested for inspection. En supposant que les deux mesurer stylos émettent très brillant lumière, alors ces deux fils sont de de phase; On le contraire, it is in phase, which is based on on the principle that the voltage difference between the north and south poles of the neon bubble in the measuring pen is proportional to its luminous intensité.
(2) Peut être utilisé pour différentielle communication entre électricité et courant direct. Quand utilisation a stylet pour vérification, it est supposé que both poles in the neon bubble of the stylus emit light, indicating communication electricity; Assuming that only one of the two poles needs to emit light, it is a direct current.
(3) Capable of distinguishing between positive and negative electrodes of direct current. Connect the test pen to the DC circuit for verification. The electrode with the neon bubble shining is the negative electrode, and the electrode without the neon bubble shining is the positive electrode.
(4) Peut être utilisé pour différencier si DC est mis à la terre ou pas. In a DC system with isolation to ground, one can stand on the ground and touch the positive or negative pole of the DC system with a mesur pen. Assuming that the neon bubble of the measuring pen is not bright, there is no grounding phenomenon. Assuming that the neon bubble shines, it indique a grounding phenomenon, and if it shines at the top of the pen, it indique a positive grounding. If it shines on the finger end, it is negative grounding. Cependant, it is nécessaire to point out that in DC systems with grounding monitoring relays, this method cannot be used to determine si the DC system is grounded or not.
Comment à précis utilisation a mesure stylo:
② Quand maintien le stylo, appuyez le queue de la mesure stylo avec votre doigts, et maintenir le stylo corps avec autre doigts.
③ Quand mesure électricité, le stylo pointe touches le test corps et la main touche la queue de la mesure stylo. En supposant que le test corps est chargé, le néon tube de le mesure stylo sera émet lumière; Si le néon tube nene fait pas émettre lumière, it indique que le inspection corps est pas chargé.
④ If the insulation resistance of the measuring pen is less than 1 megohm, it cannot be used.
