Difference between revisions of "Bin Level Indicators"
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[[File:Bin Level Indicators.jpg|thumb|right|Bin Level Indicators]] | |||
[[File:Bin Level Indicators1.jpg|thumb|right|Bin Level Indicators]] | |||
'''Bin Level Indicators''' have been designed for electric signalling by rotary action of minimum or maximum material level inside [[bins]], [[hoppers]] or [[silos]]. | |||
==Function== | |||
As long as material is present, the paddle of bin level indicator does not rotate. As soon as the material level sinks below the paddle radius, rotation restarts activating other system components. The top or side-mounted [[Indicators]] are commonly used for materials having a bulk density ranging from 0.5t/m³ to 2t/m³ (0.08 lb per cu in). | |||
==Principle== | |||
A synchronous motor drives a gear rotating a paddle extending into the bin. When the product reaches the paddle, it is prevented from rotating. The moment of reaction of the motor is used to actuate a microswitch for operating the signal or control device connected. Furthermore, the motor of the bin level indicator is switched off. When the level of the product falls below the paddle is released and the microswitch is returned by a spring to its original position. This restarts the motor and the signal or control device. | |||
Latest revision as of 00:12, 21 March 2013
Bin Level Indicators have been designed for electric signalling by rotary action of minimum or maximum material level inside bins, hoppers or silos.
Function
As long as material is present, the paddle of bin level indicator does not rotate. As soon as the material level sinks below the paddle radius, rotation restarts activating other system components. The top or side-mounted Indicators are commonly used for materials having a bulk density ranging from 0.5t/m³ to 2t/m³ (0.08 lb per cu in).
Principle
A synchronous motor drives a gear rotating a paddle extending into the bin. When the product reaches the paddle, it is prevented from rotating. The moment of reaction of the motor is used to actuate a microswitch for operating the signal or control device connected. Furthermore, the motor of the bin level indicator is switched off. When the level of the product falls below the paddle is released and the microswitch is returned by a spring to its original position. This restarts the motor and the signal or control device.