SOR Sealed Level Switches User Manual
Replacing the switch mechanism
Form 448 (05.13) ©SOR Inc.
1/4
SOR
®
Level Controls are designed for easy replacement of the switch mechanism
without removing the control from the process. The following steps are recommended
for proper replacement.
Disconnect the external wiring at the terminal block, noting the position of each wire.
Mark the location of each switch mechanism on the enclosing tube. Loosen the
clamping screw closest to terminal block. Remove the switch mechanism(s) from
the enclosing tube.
Clamp each replacement switch mechanism on the enclosing tube according to the
marks from step 2. If applicable, interlock the lowest switch mechanism with the
baffle plate.
Actuate the switch mechanism. Check continuity to verify switch actuation.
Reconnect the external wiring to the terminal block.
Arrange the external wiring to avoid interference with the movement of the switch
mechanism or housing cover.
Replace the housing cover.
Ensure that wiring conforms to all applicable local and national electrical codes and
install unit(s) according to relevant national and local safety codes.
General Instructions
Registered Quality System to ISO 9001
Design and specifications are subject to change without notice.
NOTE: If you suspect that a product is defective, contact the factory or the SOR Representative
in your area for a return authorization number (RMA). This product should only be installed by
trained and competent personnel.
Electrical power must be disconnected from explosion proof models before
the cover is removed. Failure to do so could result in severe personal injury
or substantial property damage.
To avoid a signifi cant calibration shift, each replacement switch mechanism
must be installed to match the position of the original switch mechanism on
the enclosing tube.
Each switch mechanism is factory adjusted for optimal actuation/
de-actuation. Do not adjust the switch mechanism without factory
instructions.