Set point, Differential, Pneumatic piping – SOR Vertical Displacer Top Mounted Series Level Switch User Manual
Page 11
Form 425 (08.12) ©2012 SOR Inc.
11/16
Rising level set point is the level at which actuation occurs. Falling level set point is the
level at which deactuation occurs. Do not adjust the switch mechanism or the attraction
sleeve position without factory instruction.
Float Type – Set points are factory set (non-adjustable).
Displacer Type except for Top Mount – Set points are factory set (non-adjustable).
Top Mount Displacer Type – Set points may be adjusted by moving displacers up or
down on the suspension cable.
Multi-stage controls are factory set for a specific switching sequence. Each control is
tagged with a diagram showing the switching sequence.
Set Point
Differential is the difference in liquid level between the actuation and deactuation points of a
switching element.
Float Type – Differential is factory-set (non-adjustable).
Displacer Type except for Top Mount – Differential is factory-set (non-adjustable).
Top Mount Narrow Differential Displacer Type – Differential is factory-set (non-adjustable).
Top Mount Wide Differential Displacer Type – Differential may be adjusted by moving
displacers up or down on the suspension cable. Set points are factory adjusted for the
centerline of each displacer.
Differential
Do not change factory-set switching element positions during installation.
Pneumatic Piping
Pneumatic switches may be piped according to the charts below so that an air signal
(outlet) is generated at either a high- or low-level condition.
V
ertical
Liquid Level
Condition
Output
Required Porting
Inlet
Output
Exhaust
Low
Pressurized
B
C
A
Low
Vented
A
C
B
High
Pressurized
A
C
B
High
Vented
B
C
A
Horizontal
Liquid Level
Condition
Output
Required Porting
Inlet
Output
Exhaust
High
Pressurized
B
C
A
High
Vented
A
C
B
Low
Pressurized
A
C
B
Low
Vented
B
C
A