ABB 266MST - Pressure Measurement of a Vapor in a Pipe; Pressure Measurement of a Gas in a Pipe

28 OI/266/HART-EN Rev. M | 2600T Series Pressure transmitters
5 Mounting
5.14.8 Pressure or absolute pressure measurement
of a condensable vapor in a pipe
— Place the tap at the side of the line.
— Mount the transmitter (both pressure and differential
pressure transmitter) below the tap.
— Connect the + (H) side of the transmitter to the pipe.
— Fill the vertical section of the connecting line to the tap
with a compatible liquid through the dedicated filling tee.
Figure 38: Gauge or absolute pressure measurement of
condensable vapor
5.14.9 Pressure or absolute pressure measurement
of a gas in a pipe
— Place the tap at the top or side of the line.
— Mount the transmitter (both pressure and differential
pressure transmitter) beside or above the tap.
— Connect the transmitter to the pipe.
Figure 39: Gauge or absolute pressure measurement of gas in a pipe