| 摘要 |
A liquid level indicating apparatus provides remote digital indication of liquid level in a tank or the like and comprises a plurality of discrete liquid level indicating stations releasably mounted at vertically spaced intervals along a wall of the tank and connected together in electrical series by elongated flexible electrical conductors to define a voltage divider for transmitting electrical signals to a receiver or indicating meter. Each station has a float which carries permanent magnets and moves vertically between stops in response to a predetermined liquid level condition in the tank to operate a magnetically responsive tap switch, whereby to alter the effective electrical resistance of the voltage divider.
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