(1) Prije uporabe test olovke prvo provjerite ima li u test olovci sigurnosni otpornik, a zatim vizualno provjerite je li test olovka oštećena, je li vlažna ili vodena i može se koristiti tek nakon provjere.
(Principle: There is a resistance in the test pen, and there is a light-emitting body - a neon tube. The key lies in the neon tube. After the resistance is reduced, there is a voltage to one end of the neon tube, forming a high potential. Your hand needs to touch the metal at the end of the pen. end, now you are the ground wire. There are two thin metal wires in the neon tube, which are very close to each other, but they are not connected. The neon tube is naturally filled with neon gas. Light discharge. If the voltage is too large, the neon tube will be broken down instantly. At this time, the neon tube will act as an insurance and will not cause too much damage to you. Low voltage will be more dangerous, because the traditional electric pen, the neon tube electric pen, operates at 100V. It will only light up from the left and right, so don't be careless, and don't let the electric pen get into the water, otherwise you will know the feeling of electric shock.)
(2) Kada koristite test olovku, nemojte rukama dodirivati metalnu sondu na prednjoj strani test olovke, jer to može uzrokovati strujni udar.
(3) Kada koristite test olovku, obavezno rukom dodirujte metalni dio kraja test olovke, u suprotnom, jer nabijeno tijelo, test olovka, ljudsko tijelo i zemlja ne tvore strujni krug, neonski mjehurić u test olovci neće emitirati svjetlost, što će rezultirati pogrešnom procjenom. Vrlo je opasno misliti da nabijeno tijelo nije nabijeno.
(The luminous voltage of the neon tube is above 70V, and the series resistance is 500K. When testing the voltage of 220V, the maximum current flowing through the human body is: I=(220-70)÷500=0.3mA and the human body only passes the current of 1mA. Feeling numb.)
(4) Prije mjerenja je li električna oprema napunjena, prvo pronađite poznati izvor napajanja kako biste provjerili može li neonska žarulja električne olovke normalno emitirati svjetlost i može li se normalno koristiti.
(5) When testing a charged body under bright light, special attention should be paid to whether the neon bulb really glows (or does not glow), and if necessary, the other hand can be used to block the light to judge carefully. Don't make a misjudgment, judge that the neon bulb is not emitting light, and judge that there is electricity as no electricity.
AC Voltage Tester Pen GD116B :
Pls Clink Below Photo and Read more details about this Olovka za ispitivanje AC napona GD116B :
