Reference Manual
00809-0100-4799, Rev BA
September 2002
Model 3244MV
2-4
Moist or Corrosive Environments
The Model 3244MV has a highly reliable, dual-compartment housing
designed to resist moisture and corrosives. The electronics module assembly
is mounted in a compartment that is isolated from the terminal side conduit
entries. O-ring seals protect the interior of each compartment from the
environment when the covers are installed. In humid environments it is
possible for moisture to accumulate in conduit lines and drain into the
housing.
Proper installation of the transmitter can ensure maximum operation and
service life. It can also have a significant impact on preventing moisture from
accumulating in the housing. Refer to Figures 2-2 and 2-3 before mounting
the transmitter.
Mount the transmitter at a high point in the conduit run so moisture from the
conduits will not drain into the housing. If the transmitter is mounted at a low
point in the conduit run the terminal compartment could fill with water. In some
instances the installation of a poured conduit seal, such as the one pictured in
Figure 2-3, is advisable. Remove the terminal compartment cover periodically
and inspect the transmitter for moisture damage and corrosion.
Figure 2-2. Incorrect
Conduit Installation
Figure 2-3. Process Mounting
with Drain Seal
MOUNTING AND
INSTALLATION
Installation consists of mounting the transmitter and sensor and making
electrical connections.
Use the typical North American process mounting configuration illustrated in
“Typical North American Installation” on page 2-5 or the typical European
process mounting configuration illustrated in “Typical European Installation”
on page 2-6.
Conduit
Lines
31
44-0
429A
, B
Conduit
Lines
Thermowell
Sensor Hex
Conduit for
Field Wiring
31
44-
043
0B
Union Coupling with Extension
Sealing
Compound
Poured Conduit Seal
(Where Required)
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