…5 Installation
Setting the insertion depth
Centre line method for pipe diameters ≤1 m (≤40 in)
WARNING – PRESSURIZED EQUIPMENT
• When inserting or removing the insertion sensor,
the safety mechanism (see page 16) must be
fitted and engaged to prevent the insertion
sensor being forced out under pressure. Ensure
the valve is fully open.
• Safety restraint omitted for clarity.
Referring to Figure 22:
1 Measure internal diameter (D) of the pipe – see page 14.
2 Open valve
A fully with valve lever B.
3 Slacken nut
C.
4 Lower insertion sensor
D into valve A.
5 Slide positioning collar
E down to nut C and lock in place
using a 4 mm hexagon key (see page 16).
6 Retract insertion sensor shaft
F fully.
7 Unlock positioning collar
E, slide down and lock at the
distance:
30 mm (1.181.in.)
8 Lower insertion sensor until positioning
E collar contacts
nut
C, with sensor tip at the required depth G.
9 Tighten nut
C to 40 Nm (30 ft lbf).
Internal pipe
diameter (D)
Figure 22 Setting the insertion depth – center
line method for pipe diameters ≤1 m (≤40 in)
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