Leak screw installation, Figure 31, Probe in leak screw installation – Vaisala DMT340 User Manual
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User's Guide _______________________________________________________________________
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Leak Screw Installation
When the probe cannot be installed directly in the pressurized process or
process pipe, a leak screw installation can be used.
In this installation method, you must install the DMT348 probe using a
fitting body with leak screw, see Figure 27 on page 41. A small sample
flow from the process goes through the probe and via the leak screw out
to atmospheric pressure enabling a fast response time although the probe
is not installed in the process.
0503-036
Figure 31
Probe in Leak Screw Installation
The numbers refer to Figure 31 above:
1
=
Probe
2
=
Filter
3
=
Ball of the ball valve
4
=
Leak screw