SOR Single Point Ultrasonic Level Switch - Manual (Page 3)

Form 712 (05.13) ©SOR Inc. 3/12
Horizontal Mounting
When tightened securely, the sensor
cavity must be positioned vertically for
optimum drainage when process liquid
level drops below the sensor cavity.
An alignment mark X stamped on a
wrench flat (or on the dry face of a
flange below the housing) shows
sensor cavity orientation.
Optimum drainage occurs when the X
mark is located at 6 or 12 o’clock.
Level is detected when the sensor
cavity is filled with process liquid.
The sensor must project through a tank
fitting so that the sensor cavity is at least
1” beyond the inner wall of the tank.
Sensor Cavity
1 inch
minimum
Top View
Alignment mark
X on wrench flat
at 12 o’clock
Housing
Hub
Alternate position
for alignment
mark X: 6 o’clock
Open Sump or Basin
Do not suspend the unit by rigid
conduit installed in the electrical hub.
When installing the unit over an open
sump or basin use a suitable bracket
to support the instrument.
NOTE: The instrument must be
positioned so that overfl ow does
not fl ood the electrical housing.
Bracket