How do I use a power meter pen? How to use a power meter pen
Low-voltage test pen, commonly used to test the 220-volt alternating current firewire whether there is electricity, or the line of the on and off. Usage: with bare fingers pinch or press the end of the test pen metal cap or metal card, the test pen head end (some are metal tip, some are gong knife head) gently touch the bare wire or electrical contacts, if the test pen in the middle of the small window indicator light issued by the red light, indicating that the touch of the wire or contact is 220 volts of firewire. If it does not light up then there are three cases: ① may be zero line. ② may be the fire wire but did not send power. ③ may be the fire wire but has been disconnected.
As a power plant electrician, the power test pen are to carry. At present, the power test pen to be divided into two kinds, one is the tube, one is electronic, should say that is the tube en although more old. But the power test is more accurate, the impact of induced electricity is relatively small. Especially in the power plant, due to the induction of electricity is relatively large, neon tube is the advantage of the power test pen appeared, when using electricity must take off the gloves. Hold the metal part of the cap of the electric tester with your hand. And the other hand is best to hold the wall, at this time holding the electric test pen to the charged wire core movement, electric pen glows on the wire charged. Electronically, the electric pen generally has two functions. One is to measure whether the charged, one is to measure the induced electricity, measure whether the conductor is charged, remove gloves, hold down the measuring cap of the electric pen with your hand. Put the metal head of the pen on the core of the wire, the other hand touch the wall, the LCD screen will display the voltage level you measure. If you are measuring the pole should be electric, press your hand on the measuring cap of the Yan store than the induction of electricity. Palladium metal head on the outer skin of the wire, the other hand to hold the wall, the tester will display the size of the induced electricity. But there is one thing that must be remembered, whether it is a Nai Tube's electric test pen, or an electronic one. They are all for measuring low-voltage electricity. Never measure high voltage. Take off your gloves and hold the wall with one hand for a more accurate measurement.
