Emerson Process Management 2051 manual Rosemount, Reference Manual, Flow

Rosemount 2051

Reference Manual

00809-0200-4101, Rev AA July 2008

Mounting Requirements

Impulse piping configurations depend on specific measurement conditions.

Refer to Figure 2-8 for examples of the following mounting configurations:

Liquid Flow Measurement

•Place taps to the side of the line to prevent sediment deposits on the process isolators.

•Mount the transmitter beside or below the taps so gases vent into the process line.

•Mount drain/vent valve upward to allow gases to vent.

Gas Flow Measurement

•Place taps in the top or side of the line.

•Mount the transmitter beside or above the taps so to drain liquid into the process line.

Steam Flow Measurement

•Place taps to the side of the line.

•Mount the transmitter below the taps to ensure that impulse piping will remain filled with condensate.

•In steam service above 250 °F (121 °C), fill impulse lines with water to prevent steam from contacting the transmitter directly and to ensure accurate measurement start-up.

NOTE

For steam or other elevated temperature services, it is important that temperatures at the process connection do not exceed the transmitter’s process temperature limits. See “Process Temperature Limits” on page A-7 for details.

Figure 2-8. Installation

Examples

LIQUID SERVICE GAS SERVICE STEAM SERVICE

w lo F

w lo F

Flow

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