Appendix A _________________________________ Probe Installation Kits and Installation Examples
JUMO _________________________________________________________________________ 171
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 process 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
temperature at the measurement point is equal to that of the process,
otherwise the moisture reading may be incorrect.
Follow the steps below to install the 907023/338 probe through a ball
valve assembly. After the installation, the probe should be sitting in
the process chamber or pipeline as shown in Figure 92 on page 170.
1.
Shut down the process if the process pressure is more than 10
bars. If the pressure is lower there is no need to shut down the
process.
2.
Close the ball valve.
3.
Seal the threads on the fitting body; refer to Figure 26 on page
42.
4.
Attach the fitting body to the ball valve and tighten it.
5.
Slide the clasp nut of the probe toward the filter, as far as it will
go.
6.
Insert the probe to the fitting body, and manually tighten the
clasp nut to the fitting body.
7.
Open the ball valve.
8.
Push the probe through the ball valve assembly into the process.
If the pressure is high, use the pressing handle that is provided
with the probe. If you push the probe hard without using the
handle, you may damage the cable.
Note that the probe must be pushed so deep that the filter is
completely inside the process flow.
9.
Mark the fitting screw and the clasp nut.
10. Tighten the clasp nut with a fork spanner a further 50 ... 60º
(ca. 1/6 turn). If you have a suitable torque spanner, tighten the
nut to max 45 ± 5 Nm (33 ± 4 ft-lbs). Refer to Figure 27 on
page 43.
