Vaisala MM70 - Manual (Page 17)

Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS
measurements in pipelines. The maximum installation pressure is 10
bar and the maximum operation pressure is 20 bar.
0605-086
Figure 4 MMP78 Pipe Dimensions (in mm); 400 mm
(adjustment range 340 mm)
The following numbers refer to Figure 4 on page 15.
1 = Clasp nut, 27 mm hex nut)
2 = Fitting body, 24 mm hex head
Tightening the Clasp Nut
1. Adjust the probe to a suitable depth according to the type of
installation and tighten the clasp nut first manually.
2. Tighten the clasp nut first manually. Mark the fitting screw and
the clasp nut. Tighten the nut a further 30 - 40° (ca.1/12" turn)
with a plastic wrench. If you have a suitable torque spanner,
tighten the nut to max 35±5 Nm (25±4 ft-lbs).
VAISALA _______________________________________________________________________ 15