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Q.

How does a FLOAT SWITCH work ?

Tags: relationships, careers, switch
Asked by truth exposed, 22 Jan '13 01:36 pm
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Answers (5)

 
1.

A very common application is in sump pumps and condensate pumps where the switch detects the rising level of liquid in the sump or tank and energizes an electrical pump which then pumps liquid out until the level of the liquid has been substantially reduced, at which point the pump is switched off again. Float switches are often adjustable and can include substantial hysteresis. That is, the switch's "turn on" point may be much higher than the "shut off" point. This minimizes the on-off cycling of the associated pump.
Some float switches contain a two-stage switch. As liquid rises to the trigger point of the first stage, the associated pump is activated. If the liquid continues to rise (perhaps because the pump has failed or its discharge is blocked), the second stage will be triggered. This stage may switch off the source of the liquid being pumped, trigger an alarm, or both.
Answered by LIPSIKA, 22 Jan '13 01:40 pm

 
  
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2.

A float switch is a device used to detect the level of liquid within a tank. It is simply a float raising a rod that actuates a microswitch. It works on triggering of liguid level.
Answered by Uncommon Freind, 22 Jan '13 01:42 pm

 
  
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3.

Purpose of a float switch is to open or close a circuit as the level of a liquid rises or falls.Most float switches are normally closed, meaning the two wires coming from the top of the switch complete a circuit when the float is at its low point, resting on its bottom clip (for example, when a tank is dry)
Answered by arun mishra, 22 Jan '13 01:39 pm

 
  
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4.

The purpose of a float switch is to open or close a circuit as the level of a liquid rises or falls. Most float switches are normally closed, meaning the two wires coming from the top of the switch complete a circuit when the float is at its low point, resting on its bottom clip (for example, when a tank is dry).

To complete a circuit, float switches utilize a magnetic reed switch, which consists of two contacts sealed in a glass tube. When a magnet comes close to the two contacts, they become attracted to each other and touch, allowing current to pass through. When the magnet moves away, the contacts demagnetize and separate
Answered by iqbal seth, 22 Jan '13 01:38 pm

 
  
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5.

Float switches contain a two-stage switch. As liquid rises to the trigger point of the first stage, the associated pump is activated
Answered by anantharaman, 22 Jan '13 03:47 pm

 
  
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