Vaisala DMT143 - Manual (Page 34)

USER'S GUIDE ____________________________________________________________________
32 ___________________________________________________________________ M211435EN-E
DM240FA Duct Installation Flange
DMT143 transmitter with the G1/2” ISO228/1 connection thread be
installed directly in the process wall 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 sensor head can be removed from the
process for calibration or maintenance.
1202-125
Figure 19 DM240FA with DMT143
where
1 = Measured gas
2 = DMT143 transmitter
3 = DM240FA flange (thread G1/2” ISO228/1)
4 = Recommended additional hole (plugged) for T
d
field check
reference measurement probe (for example, Vaisala DM70)
2
3
4
1