User`s guide

Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 45
0507-043
Figure 26 Installing the MMT338 Probe through a Ball Valve
Assembly
The following numbers refer to Figure 26:
1
=
Manual press tool
2
=
Handle of the ball valve
3
=
Probe
4
=
Process chamber or pipeline
5
=
Groove on the probe indicates the upper adjustment limit
6
=
Filter
7
=
Ball of the ball valve
8
=
Fitting screw
NOTE
The probe can be installed in the process through the ball valve
assembly provided that the process pressure is less than 10 bars. This
way, the proce
ss does not have to be shut down when installing or
removing the probe. However, if the process is shut down before
removing the probe, the process pressure can be max. 20 bars.
NOTE
When measuring temperature dependent quantities make sure that the
temp
erature at the measurement point is equal to that of the process,
otherwise the moisture reading may be incorrect.