DL8000 Preset Instruction Manual
Revised February-2016
Installation and Use
2-17
holes that match the bolting pattern being used. The steel member
may be sheet, angle, channel, or another shape.
Center the forward pair of mounting screw holes in bottom-mount
fixtures no more than 19 mm (0.75 inch) from the edge. The case
has a taper to the rear. The standard case may need a shim at the rear
pair of screws to level the DL8000. Level the case to allow for the
best conduit alignment.
Special Installation Considerations
The DL8000 is designed for installation in an outdoor environment.
The instrument is weatherproof and explosion-proof in accordance
with applicable standards. Some of the following installation
suggestions concerning environmental protection describe accepted
engineering practices and should not be considered to be limitations
on the utility of the instrument.
•
If the loading rack or loading island area is covered, locate the
DL8000 so that the operator is protected or partially protected
from direct rainfall.
•
In
tropical climates
, place sunshades above the DL8000 and
other electronic instruments, such as process transmitters. Locate
sunshades to prevent direct sunlight on the instruments during
the hottest part of the day (10:00 to 15:00). Construct sunshades
of metal, fiberglass, or other suitable materials. Sunshades
should be rear-sloping to direct rain to the rear of the instrument
and away from the operator. Avoid sharp edges or corners on
sunshades to prevent injuries.
•
In
desert areas or areas of blowing sand
, install a cover to
protect the operator control panel during idle time. Continuous
blowing sand over an extended period of time can sandblast the
display panel and pushkey legends, affecting readability.
Fabricate a cover from raw materials or use a modified NEMA 4
weatherproof enclosure with a sealed rear cutout, placing it over
the operator panel. Use care in the design of any hinged cover so
that wind gusts do not move the cover and cause injuries. Any
cover design must allow for maintenance access to the DL8000.
The operator panel is hinged to open in the down direction for
maintenance access.
•
In
areas of continuous high humidity
, place a 76.2mm x
76.2mm (3-inch x 3-inch) desiccant pack inside the DL8000
case. Place desiccant packs so that any expansion due to
moisture absorption does not interfere with any of the equipment
or wiring inside the case. Two sources of desiccant packs are:
o
Waterguard
®
Desiccants
PO Box 1079
16023 I-10 East, Suite 30
Channelview, TX 77530
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