Chapter 3 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 31
The following two fitting body options are available:
-
Fitting Body ISO1/2 solid structure
-
Fitting Body NPT1/2 solid structure
0507-025
Figure 14
Sealing of Fitting Body into Process
Tightening the Clasp Nut
1.
Adjust the probe to a suitable depth according to the type of
installation.
2.
Tighten the clasp nut first manually.
3.
Mark the fitting screw and the clasp nut.
4.
Tighten the nut a further 50 ... 60° (ca. 1/6 turn) with a fork
spanner. If you have a suitable torque spanner, tighten the nut to 45
± 5 Nm (33 ± 4 ft-lbs).
Table 4
HMP368 Probe Dimensions
Probe Type
Probe Length
Adjustment Range
Standard
178 mm
120 mm
Optional
400 mm
340 mm
CAUTION
Take care not to damage the probe body. A damaged body makes the
probe head less tight and may prevent it from going through the clasp
nut.
