Emerson Rosemount 1595, Reference Manual

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Reference Manual
00809-0100-4828, Rev EA
November 2007
Rosemount 1595
2-2
LOCATION AND
ORIENTATION
The orifice plate electronics must be installed in the proper orientation relative
to the pipe and the fluid measured.
Horizontal Pipe
Installation
OPERATING TEMPERATURE LIMITS
For line sizes 2-in. (50 mm) to 24-in. (600mm)
Temperature Range: -320 to 1200°F (-196 to 649°C)
-320 to 800°F (-196 to 427°C) and differential pressure up to 800 inH
2
O.
800 to 1200°F (427 to 649°C) and differential pressure up to 400 inH
2
O.
Pressure Tap Orientation
Orient the 1595 Conditioning Orifice Plate so that the pressure taps are
centered between any 2 (of 4) orifice bore holes. In addition, the pressure
taps should be located at 90° to the plane of the last elbow.
The following figures show paddle style conditioning orifice plate, but
orientation pertains to both paddle and universal plate styles.
Gas in Horizontal Pipes
The electronics should be mounted above the pipe to ensure that condensate
does not collect on the transmitter sensing diaphragms. Orient the unit within
the 120
°
recommended zone as shown in Figure 2-1.
Figure 2-1. Gas in Horizontal
Pipes
FLOW
30°
Recommended Zone 120 degrees
30 °
Flow
Recommended Zone 120°