SOR 200 series User Manual

Registered Quality System to ISO 9001:2008
4/60
Form 912
sorinc.com
913-888-2630
Float-Operated Level Switches
Model Series 100, 200 and 300
The float rides on the process liquid surface,
precisely tracking liquid surface motion.
Rising liquid level lifts the float, sliding the attraction
sleeve up inside the enclosing tube and into the
magnetic field to actuate the electrical or
pneumatic switch (signaling liquid presence).
Subsequently, falling liquid level lowers the float,
drawing the attraction sleeve out of the magnetic
field to deactuate the electrical or pneumatic switch
(signaling liquid absence). Float-type level switches
are generally able to handle high-temperature
applications, and sometimes prove useful for close
interface detection.
Floats can operate up to three switching elements.
Independent switching levels may be obtained with
tandem floats. Consult the factory for special float-
switching arrangements.
Principles
Float-Operated Level Switches
Model Series 108/208 and 400
The float rides on the process liquid surface, precisely tracking liquid surface motion.
Rising liquid level lifts the float via a pivot mechanism, sliding the attraction sleeve down inside
the enclosing tube and out of the magnetic field to deactuate the electrical or pneumatic switch
(signaling liquid presence).
Subsequently, falling liquid level lowers the float, drawing the attraction sleeve into the magnetic field
to actuate the electrical or pneumatic switch (signaling liquid absence). Float-type level switches are
generally able to handle high-temperature applications.
Actuated Deactuated
Switching
Element
Actuated
Magnetic
Field
Engaged
Attraction
Sleeve Up
Counterweight
Switching
Element
Deactuated
C Common
NC Normally Closed
NO Normally Open
Bias Spring
Enclosing Tube
C Common
NC Normally Closed
NO Normally Open
Bias Spring
Enclosing Tube
Magnetic
Field
Disengaged
Attraction
Sleeve
Down
Level
Differential
Mechanical
Level Switches
Actuated Deactuated
Common
Normally Open
Normally Closed
Pivot
Bias Spring
Magnet
Attraction Sleeve
Enclosing Tube
Float
Switching Element
Level
Differential

SOR 200 series Specifications

General

Brand	SOR
Model	200 series
Category	Switch
Language	English