FloBoss 407 Instruction Manual
Rev 5/00
1-7
When installing units in a hazardous area, make sure components selected are
labeled for use in such areas. Installation and maintenance must be performed
only when the area is known to be non-hazardous.
NOTE
Measurement Canada approved units normally require a sealed installation. Refer
to your local codes for specifics.
1.4.4 Power Installation Requirements
Typical sources of primary power for FloBoss 407 installations are line power and solar power. Care
must be taken to route line power away from hazardous areas, sensitive monitoring devices, and radio
equipment. Local and company codes generally provide guidelines for line power installations.
Adhere rigorously to all local and National Electrical Code (NEC) requirements for line power
installations.
Solar power allows installation of the FloBoss 407 in locations where line power is not available. The
two important elements in a solar installation are solar panels and batteries. Each must be properly
sized for the application and geographic location to ensure continuous, reliable operation. Information
contained in the accessories manual can help you determine the solar panel and battery requirements to
fit your installation.
As a site may have additional power requirements for radios, repeaters, and other monitoring devices,
Fisher Controls Field Automation Systems offers power supply and converter accessories to minimize
the number of separate power sources required for an installation.
1.4.5 Grounding Installation Requirements
Grounding wiring requirements for line-powered equipment are governed by the National Electrical
Code (NEC). When the equipment uses line power, the grounding system must terminate at the service
disconnect. All equipment grounding conductors must provide an uninterrupted electrical path to the
service disconnect.
The National Electrical Code Article 250-83 (1993), paragraph c, defines the material and
installation requirements for grounding electrodes.
The National Electrical Code Article 250-91 (1993), paragraph a, defines the material
requirements for grounding electrode conductors.
The National Electrical Code Article 250-92 (1993), paragraph a, provides installation
requirements for grounding electrode conductors.
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