Emerson ROSEMOUNT OCX 8800 - Manual (Page 28)

Instruction Manual
IM-106-880, Rev 1.0
January 2007
OCX 8800
2-8
ELECTRICAL
INSTALLATION All wiring must conform to local and national codes. For reference, factory
wired solenoid power connections are shown in Figure 2-5.
Disconnect and lock out power before connecting the unit to the power supply. Failure to
lock out power could result in serious injury or death.
Install all protective equipment covers and safety ground leads after installation. Failure to
install covers and ground leads could result in serious injury or death.
To meet the Safety Requirements of IEC 1010 (EC requirement), and ensure safe operation
of this equipment, connection to the main electrical power supply must be made through a
circuit breaker (min 10 A) in close proximity and marked for this equipment which will
disconnect all current-carrying conductors during a fault situation. This circuit breaker
should also include a mechanically operated isolating switch. If not, then another external
means of disconnecting the supply from the equipment should be located close by. Circuit
breakers or switches must comply with a recognized standard such as IEC 947.
To maintain explosion-proof protection of the OCX 8800 in hazardous areas, all cable entry
devices and blanking elements for unused apertures must be certified flameproof, suitable
for the conditions of use and properly installed.
To maintain explosion-proof protection of the OCX88C in hazardous areas, the sensor
housing must not be mounted to any surface or flange that exceeds 200ºC (392ºF).
To maintain explosion-proof protection of the OCX88C in hazardous areas, the sample
entering the sensor housing must not exceed 200ºC (392ºF).