SOR 1710 Compact Level Switch User Manual

Page 3

Form 916 (03.14) ©SOR Inc.

3/8

Electrical Installation



Remove the end cover to gain acess to the switch mechanism and terminal block.



Feed the switching wires into the housing through the electrical connection. Wire
to the terminal block(s) as shown in

. Select wires which are compatible with

temperature and electrical load required by the application. Keep wire length as
short as possible to prevent damage when cover is installed.



Connect the ground wire to the green ground screw located on the outside of the housing.



Replace the switch cover. Ensure switch cover is screwed on all the way.



Housing becomes very hot during regular use, high temp. conduit connections are
necessary.



Test the switch action by varying the liquid level in the chamber or tank.

The cover can become
extremely hot during
operation. Use adequate
protection to prevent
severe personal injury.

LIQUID

LEVEL

LOW

LIQUID

LEVEL

HIGH

SPDT DPDT

WIRING CONTINUITY

SPDT

DPDT

Safety Integrity Level (SIL) Installation Requirements

The SOR pressure switches have been evaluated as Type-A safety related hardware.
To meet the necessary installation requirements for the SIL system, the following
information must be utilized:

Proof Test Interval shall be one year.
Units may only be installed for use in Low Demand Mode.
Products have a HFT (Hardware Fault Tolerance) of 0, and were evaluated in a

1oo1 (one out of one) configuration.