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CAUTION. Installation, programming, calibration, and servicing of this
device should be performed by properly trained and qualified personnel.
Potential shock hazards may exist when operating this device with the front
cover removed. Power should be removed from this device during
installation and servicing.
E-2
Physical Installation
The ADFM Analog Output Module is housed in a polycarbonate NEMA 4X
enclosure with a translucent cover, approximately 10.0" high x 7.1" wide
(254mm x 180mm). The enclosure is typically fitted with two (2) cable
sealing glands for routing the ADFM communications cable and all field
wiring into the enclosure. An Amp CPC connector is also fitted to the en-
closure, to permit connection of additional devices to the ADFM flow
monitoring system. This connector will not normally be used.
E-2.1
Mounting Location
The specific arrangement of components in an ADFM flow monitoring sys-
tem can vary greatly, and will depend to a large extent on the physical pa-
rameters of the monitoring location. In a typical installation, the ADFM
Analog Output Module's enclosure would be mounted adjacent to the
ADFM Electronics Enclosure. Remote mounting is possible within the lim-
its of the RS-232 communications protocol. Specifications for the RS-232
protocol limit the cable length to a distance of 25 feet, but substantially
longer cables have been applied successfully in some applications.
A minimum clearance of two inches (50mm) should be provided on the top
and both sides of the module's enclosure, with the minimum clearance in-
creased to six inches (150 mm) on the bottom of the enclosure to provide
access for cable entry. The enclosure may be installed in any orientation,
however, readability of the display will suffer if the enclosure is not ori-
ented vertically.
E-2.2
Mounting Options
Two options are available for mounting the ADFM Analog Output Module's
enclosure. The simplest, and recommended option, is to mount the enclo-
sure using the mounting holes in each corner of the enclosure. These
mounting holes are directly in line with the cover screws, with an approxi-
mate hole spacing of 9.41" by 6.50" (239mm x 165mm). These mounting
holes do not penetrate into the interior of the enclosure, thus protecting the
interior of the enclosure from moisture and corrosion.
A second set of mounting holes is provided in the back of the enclosure.
Removal of the module's circuit board and its mounting bracket from the
enclosure is required to access this set of mounting holes. The hole pattern
ADFM Technical Manual (January 2000)
ADFM Analog Output Module
page E-3
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