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Reference Manual
00809-0100-4808, Rev CA
June 2008
Rosemount 3051N
6-8
Option PM is a SST pipe mount bracket assembly designed for use in pipe
mounting the Traditional Flange (H2). It is the same bracket used on other
RNII nuclear qualified transmitters, including the Rosemount 1154 Series H.
When installing the transmitter to the optional mounting brackets, torque the
bolts to 21 foot-pounds. See “Mounting” in Section 3 for additional mounting
considerations.
Traditional Flange (H2) The traditional flange option converts the mounting configuration of the
Rosemount 3051N to one similar to traditional style transmitters. This allows
the Rosemount 3051N to replace traditional transmitters without changing
existing manifolds, impulse piping, or bracket arrangements. The traditional
flange also allows a higher process temperature at the process ports (300 °F
[149 °C]) because of its ability to dissipate heat.
The traditional flange fits most existing mounting brackets. If a new bracket is
required, use one of the bracket options described earlier. Figure 6-3 in
Section 6 shows the traditional flange.
FIGURE 6-3. Typical Traditional Flange.
TRANSIENT
PROTECTION TERMINAL
BLOCK (T1)
The standard transient protection terminal block increases the Rosemount
3051N Pressure Transmitter’s ability to withstand electrical transients.
Rosemount 3051N Pressure Transmitters, with integral transient protection
installed, meet the standard performance specifications as outlined in this
product manual.
NOTE
Installation of the transient protection terminal block does not provide
transient protection unless the Rosemount 3051N transmitter case is properly
grounded. See Section 3 for grounding information.
TRADITIONAL FLANGE
AND ROSEMOUNT 3051N
TRADITIONAL FLANGE WITH DRAIN/VENTS