Rosemount OCX 8800, Instruction Manual

Page: 36 / 266

Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
8-2
ELECTRICAL
INSTALLATION
All wiring must conform to local and national codes. For reference, factory
wired solenoid power connections are shown in Figure 2-6.
NOTE
To maintain proper earth grounding, ensure a positive connection exists
between the sensor housing, the electronics housing, and earth. The
connecting ground wire must be 14 AWG minimum. Refer to Figure 2-6.
NOTE
Line voltage, signal, and relay wiring must be rated for at least 105ºC (221ºF).
Electrical Connections
Electrical connections, power and communications are made to the electronic
enclosure. The connections are made through two 3/4 NPT ports in the
enclosure using fittings and cables provided by the customer. Cable
installation must meet NEC, IEC and/or other applicable national or local
codes for Class I, Zone 1, IIB +H2 T3/T6 permanently mounted equipment.
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.
The OCX88A can be installed in general purpose areas only. Do not install the OCX88A in
hazardous areas.