Reference Manual
00809-0100-4004, Rev BA
August 2010
Rosemount 8800D
2-14
ELECTRONICS
CONSIDERATIONS
Both integral and remote mounted electronics require input power at the
electronics. For remote mount installations, mount the electronics
against a flat surface or on a pipe that is up to two inches in diameter.
Remote mounting hardware includes an L bracket that is stainless steel and
one stainless steel u-bolt. See Reference Data , “Dimensional Drawings” on
page A-20 for dimensional information.
High-Temperature Installations
Install the meter body so the electronics are positioned to the side of or
below the pipe as shown in Figure 2-2 on page 2-4. Insulation may be
required around the pipe to maintain an ambient transmitter temperature
below 185 °F (85 °C) or the more restrictive temperature ratings marked on
hazardous locations tags.
Conduit Connections The electronics housing has two ports for
1
/2–14 NPT or M201.5 conduit
connections. Unless marked otherwise conduit entries in the housing are
1
/2
NPT. These connections are made in a conventional manner in accordance
with local or plant electrical codes. Be sure to properly seal unused ports to
prevent moisture or other contamination from entering the terminal block
compartment of the electronics housing. Additional conduit entry types are
available via adapters.
NOTE
In some applications it may be necessary to install conduit seals and arrange
for conduits to drain to prevent moisture from entering the wiring
compartment. Should not be removed when circuit live or in explosive
atmosphere.
High-Point Installation Prevent condensation in any conduit from flowing into the housing by
mounting the flowmeter at a high point in the conduit run. If the flowmeter is
mounted at a low point in the conduit run, the terminal compartment could fill
with fluid.
If the conduit originates above the flowmeter, route conduit below
the flowmeter before entry. In some cases a drain seal may need to
be installed.
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