IC card coil: how to distinguish the IC card intelligent meter is burnt out
Speaking of the IC card coil we should all know, we are often in life touches,such as our bus time inside will have IC card coil. That today we have to discuss how to distinguish the IC card intelligent meter is burnt out the IC cardchip inside, connected with the coil, when you induction card, coil cuttingreader sends out of the magnetic field lines, generated current, signal through a chip, by reader receives the specified send.
IC card intelligent meter is burnt out?
There is no exception to watch the IC card intelligent meter appearance 1.Look at the glass window inside there is no white, yellow mark and coil insulation loss foreign body. If there is, that the IC card intelligent meter has been burned out.
2 such as the discovery of IC card intelligent meter table tail singed, plasticsheet cover deformation, meter works abnormally, should check whether thepower line fault. If there is, then check whether the fuse fuse fuse fuse, if not,is undoubtedly the rated current of the fuse capacity has exceeded the IC card intelligent meter value.
3 when the IC card intelligent meter found abnormal work, should checkwhether the user the use of high-power electrical appliances, or load has exceeded the IC card intelligent meter rated capacity, if the rated capacity load exceeds the IC card intelligent meter, it is possible to IC card intelligent meterburn.
4 when the IC card intelligent meter users found not to current coil basically intact, can be used multimeter resistance gear test voltage coil, universal meter pointer does not move, prove that the voltage coil burning.
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