Coil test must be controlled very easily compared, three-wire wound components such as SCR, FET, and etc. In general, a coil of many turns or wire around a common core. The core can be made of iron or even air. When an electric current passes through the coil generates a magnetic field. A coil in some ways, it's an opposite of a capacitor. A capacitor blocks DC and AC can flow through it, a coil allows DC to flow through them, while limiting the flow of alternating current.Another name for a coil inductor.
Can test a coil or inductor with a similar, or flyback tester meter inductance coil as Dick Smith. A coil that is small, I test is usually only with analog display, and you could also check on board. Set your analog meter and set the X1 ohms on the coil probes of small size. The meter should show something to read (or continuity) and this showed that the coil is in order. Small coils rarely embarrassed because they have lessCompare winding large coils, where he could go to a lot of laps short of liquidation and the opportunities for them is very high.
Test larger coil or choke, as the computer monitor B + coil, you need an inductance meter to find out the exact value of inductance, which is located in Henry units (H). Examined by experts using a meter to the coil inductance, whether good or bad is not recommended as a coil short (short circuit between the windings) would have a good inductance value, and you shouldcontrol of a coil to lose badly. If you use the meter to calculate the inductance reading and want to go back, and this coil loops etc.. I just want to test a coil meter with large dick smith flyback. Each winding is shorted, it could be easily detected by this tool.
Now is the time to share my real case, for example, a computer dealer please send me a screen flashes for the repair of power symptom. Normally there is no need to monitor repaired immediately, but I would first scan flyback testerall large coils (SMPS, Flyback, b + and the horizontal deflection coil) before testing my instrument digital or analog. In measuring the B + coil, the LED went out and accept it, at least 5 bar LED and upwards. During the welding of the coil, I do not see any signs of burning on the coil or loop, and in fact seems to gloss. Because I trust the counter, I opened my surprise, the winding and the internal composition was burned by crunchy, but the outside looks good roll indeed!A new monitor B + coil back to life.
Using a flyback tester to test the coil, which helped me to find many short-circuited coil in switching power supplies transformer primary winding, B + coil, flyback transformer primary winding and the horizontal deflection coil. The flyback meter can also be used to check the status of the ballast in fluorescent lamps!
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