Vaisala HMT360N - Manual (Page 33)

Chapter 3 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 31
0507-025 Figure 13 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).
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.