MANTENIMIENTO Y APLICACIONES DE INSTRUMENTACIÓN Y CONTROL

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OTROS PROCESOS

Interruptor de nivel LBFS >> LBFS

DESCRIPCIÓN:

 

The Level Switch LBFS is designed to detect levels in tanks, for media
separation and provide empty-pipe detection or dry-run protection for
pumps.
A high frequency sweep signal is radiated from the sensor tip into the
tank. The media will act as a virtual capacitor, which together with a
coil in the sensor head, will form a circuit creating the switch point
signal. This virtual capacitance will depend of the di-electric value DK
(Dielectrical Constant) of the media.
Two output signals are available, Normally Open (NO) and Normally
Closed (NC). By means of the FlexProgrammer 9701, a damping of
the output signal can be activated in case of a fluctuating media level,
e.g. during tank filling. Additionally the output signals NO and NC can
be reversed.
The measurement is precise and unaffected by the mounting position
in the tank. In the Flex-software a compensation for foam, bubbles
and condensate as well as sticky media can be set.
The Flex-software also features an adjustment facility making the user
able to adjust the sensor to a specific media.
The Level Switch LBFS measures liquids such as water and oil. Even
dry media can be measured, eg. coal dust or plastic granulate.
Level Switch LBFS can be delivered with PNP output as well as NPN
output.
The process connection can easily be sealed by use of PTFE tape or
by use of special welding adapter for the hygienic edition.




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