EF-Series Instruction Manual
Rev 2/01 1-7
1.5 INSTALLATION REQUIREMENTS
This section provides generalized guidelines for successful installation and operation of the EF-Series
Unit. Planning helps to ensure a smooth installation. Be sure to consider location, ground conditions,
climate, and site accessibility while planning an installation.
The versatility of the EF-Series Unit allows it to be used in many types of installations. For additional
information concerning a specific installation, contact your Fisher Representative. For detailed wiring
information, refer to Section 2.
The Installation Requirements section includes:
♦
Environmental Requirements
♦
Site Requirements
♦
Compliance with Hazardous Area Standards
♦
Power Installation Requirements
♦
Grounding Installation Requirements
♦
I/O Wiring Requirements
NOTE
The EF-Series Unit has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy. If not installed and used in accordance with this
instruction manual, the EF-Series Unit may cause harmful interference to radio
communications. Operation of the equipment in a residential area is likely to cause
harmful interference, in which case you will be required to correct the interference
at your own expense.
1.5.1 Environmental Requirements
The EF-Series Unit case is classified as a NEMA 4 equivalent enclosure. This provides the level of
protection required to keep the units operating under a variety of weather conditions.
The unit is designed to operate over a wide range of temperatures. However, in extreme climates it
may be necessary to moderate the temperature in which the unit must operate.
The unit is designed to operate over a -40 to 75°
C (-40 to 167° F) temperature range. The LCD
temperature range is -25 to 70° C (-13 to 158° F). When mounting the unit, be aware of external
devices that could have an effect on the operating temperature. Operation beyond the recommended
temperature range could cause errors and erratic performance. Prolonged operation under extreme
conditions could also result in failure of the unit.
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