17
[Fig 9.3.1]
• Put the charger plug into the outlet point
• Do not switch on the battery charger until all the plugs are in the position
• The LED light on the battery charger will show amber while charging
• The LED light on the battery charger will show green when batteries are fully charged
• Turn off the mains power to the charger before removing the charger plug from the
charging outlet.
10.0 EMI / RFI
The rapid development of electronics, especially in the area of communications, has
saturated our environment with electromagnetic (radio) waves that are emitted by
television transmitters, cellular phones, citizen’s band radios (CB’s), amateur radios (ham
radios), wireless computer left, microwave transmitters, paging transmitters, etc. These
electromagnetic (EM) waves are invisible and increase in strength the closer one gets to
the source of transmission. When these energy waves act upon electrical devices and
cause them to malfunction or to function in an erratic or uncontrolled manner, they are
referred to as Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI).
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