10
Lead sealing procedure
Meter with anged connections
A) Insert the steel thread into the hole as illustrated in the gure and wind it around the pipe;
B) Wind the thread as illustrated in the gure so that, once lead sealing is complete, the ow meter cannot be removed without breaking the seal
or the thread.
C) Twist the thread and insert the plumb bob.
D) Pass the thread through the hole on the probe and the pocket and twist it;
E) Wind the thread as illustrated in the gure so that, once lead sealing is complete, the cap cannot be unscrewed without breaking the seal or
the thread;
F) Twist the thread and insert the plumb bob;
G) Repeat steps D, E, F for the other temperature probe.
H) Pass the thread through one of the
dedicated holes on the sides of the heat
meter calculation unit, twist it, then nally
insert the plumb bob.
I) Apply a cast to the plumb bobs, as
shown in green in the gure on the right.
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