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How To Use And Maintain Magnetic Reed Switches?
Don’t apply heat to the wire it will expand and shatter the
glass.
One way out is to hold the wire at the nearest point with a
pair of needle-nose pliers so that heat sinks into the pliers for
soldering.
Now ensure that the wire ends are the right distance apart so they
fit in the sockets. You can use 2 pair of pliers to bend the wire
ends that fit in the sockets, for safety so that the glass is not
strained.
Advantages of Magnetic Glass Reed Switches
Generally, the advantage of magnetic reed switches is that the reeds
are protected by atmospheric corrosion as they are placed inside evacuated
glass capsules. Secondly flexibility is another factor that makes
them popular. The reeds can be either of ferrous or non ferrous metals
depending on the usage. They do not require standby power to operate
when they are constructed in such a way to operate within a permanent
magnetic field.
Disadvantages of Magnetic Reed Switches
One of the disadvantages of this type of switches is false signals
are produced when subjected to
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heavy vibrations and fluctuating voltages.
Heavy currents cause them loose springiness by overheating and make
a few sparks fly. There is always the danger of damaging the glass
for various reasons like handling and high voltages. This is because
under high voltage they tend to get fused and “welded”
permanently or if the weld is not strong enough, you can separate
it by gently tapping the switch on the table. Any hard hitting would
break the glass.
Waterproof Reed Switches
Waterproof reed switches are so flexible that they can be used even
in damp and dirty places too. They are hermetically sealed and are
totally waterproofed making them so versatile to use. They are available
for matching actuating magnets.
Remote Contact Switches
Remote contact switches are very handy in car alarm systems. The remote
(radio) control facilitates central locking function together with
alarm. Additionally you can set contact switches for bonnet and boot
it set of buzzer internally, which can replace the red light indicator.
Magnetic contact switch and magnetic alarm switch have revolutionized
the way home or office security was being done. Though they need
you to pay a little more attention they are worth the trouble.