SOR Single Point Ultrasonic Level Switch User Manual
Page 4
4/20
Form 771 (08.13) ©SOR Inc.
Remote Electrical Connection
Remote Cable Connection
Conduit must be installed between the sensor base and the electronics housing to provide
a raceway for sensor extension cables. (See
) The sensor base and the electronics
housing are suitable for use in Class I Group C & D; Class II Groups E, F & G; Division 1
& 2 Hazardous Locations. All conduit and fittings used for the installation must equal or
exceed this rating to maintain the explosion proof integrity of the assembly.
Control Board
See Figures 12 and 14
Remote
Interconnect
Board
See Figure 8
Sensor Base
Electronics
Housing
Conduit must meet
Class I Group C & D;
Class II Groups E, F & G;
Division 1 & 2
Protect factory
installed
plugs
Ensure that wiring conforms to
all applicable local and national
electrical codes and install unit(s)
according to relevant national and
local safety codes.
Fishing the Sensor Extension
Cables Two sensor extension cables
are supplied. Both ends of the cables
are terminated and labeled at the
factory.
Use care to avoid damaging the
factory installed mini-phono
connectors while fishing the sensor
extension cables through the conduit. Pull cables from the sensor base so that the free
ends follow the fish through the conduit. (See
)
Sensor Coax Connections Inside Sensor Base
Inside the sensor base, a remote interconnect board rests in a plastic holder. Slide the
interconnect board up. Attach the sensor coax connectors to the interconnect board as follows:
Connect the long sensor* (A) cable to IN 1.
Connect the short sensor (T) cable to IN 2.
*Viscous probe sensor cables are the same length. Refer to the cable markings to make correct
electrical connections.
Attach the extension cables to the interconnect board as follows:
Connect cable A to OUT 1. (See
)
Connect cable T to OUT 2.
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.