Steam Installations; Conduit Connections - Emerson Rosemount 8800D Series Reference Manual

Reference Manual
00809-0100-4772, Rev FA
3.4.6

Steam installations

For steam applications, avoid installations such as the one shown in
installations may cause a water-hammer condition at start-up due to trapped condensate.
The high force from the water hammer can overstress the sensing mechanism and cause
permanent damage to the sensor.
Figure 3-8. Installation Type to Avoid for Steam Applications
Pressure and temperature transmitter location
When using pressure and temperature transmitters in conjunction with the flowmeter for
compensated mass flows, install the transmitter downstream of the flowmeter. See
3-9.
Figure 3-9. Pressure and Temperature Transmitter Location
A. Four diameters downstream
B. Six diameters downstream
NOTE: The MTA option can be purchased for an integral temperature measurement and mass flow temperature
3.4.7

Conduit connections

The electronics housing has two ports for
Unless marked otherwise conduit entries in the housing 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.
Installation
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A
B
compensation for saturated steam only.
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P T
/ –14 NPT or M20
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2
Industry Automation
Installation
March 2016
Figure 3-8 below. Such
Figure
1.5 conduit connections.
×
/ NPT. These connections are
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2
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