Vaisala DPT146 - Manual (Page 33)

Chapter 4 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 31
DM240FA Duct Installation Flange
The transmitter can be installed directly in the measured gas through
DM240FA duct installation flange. When the transmitter is installed
directly on the process wall or pipe, note that a closing valve may be
needed on both sides of the installed transmitter so that the transmitter
can be removed from the process for calibration or maintenance.
1108-006
Figure 19 DM240FA with DPT146
where
1 = Measured gas
2 = DPT146 transmitter
3 = DM240FA flange (thread G1/2" ISO)
4 = Recommended additional hole (plugged) for dewpoint field
check reference measurement probe (for example, Vaisala
DMP74B)
2
3
4
1