SOR Single Point Ultrasonic Level Switch - Manual (Page 4)

4/12 Form 712 (05.13) ©SOR Inc.
Control Board (See Page 2)
Electronics
Housing
Conduit
Must Meet
Class 1 Group C & D;
Class II Groups E, F & G;
Division 1 & 2
Sensor Base
Protect
Factory-
Installed Plugs
Remote
Interconnect
Board
(See Below)
Conduit must be installed between the
sensor base and the electronics housing
to provide a raceway for sensor
extension cables. 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.
Ensure that wiring conforms to all
applicable local and national electrical
codes and install unit(s) according to
relevant national and local safety codes.
Remote Cable Connection (Applies to remote units only - R Housing)
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.
Short
each center conductor
to the shell to discharge
sensor crystals.
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.
Discharge the Sensor Temperature changes
which occur during shipment may result in
a small electrical charge inside the sensor
crystals. This charge is harmless to humans, but may result in damage to the electronics
if the sensor is plugged in before it is discharged. To discharge the sensor, touch a wire to
each sensor connector so that the center conductor and outside shell make contact.
Fishing the Sensor Extension Cables
Two sensor extension cables are supplied. Both ends of the cables are
terminated and labeled at the factory.