5 how to mount large and medium size sensor, 1 how to determine mounting position, Bulletin f-9-pux2 – Dwyer PSX2 User Manual
Page 56
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8.5
How to mount large and medium size sensor
8.5.1 How to determine mounting position
Determine the mounting position by carrying out the following work.
For this work, gauge paper is necessary (For the gauge paper, refer to page 57).
(1) Match the edge of gauge paper with the line at
about 100mm (3.9") from one end of the pipe portion
treated for detector mounting, and wind the
gauge paper so that the line marked on the paper
is parallel with the pipe axis (fi x with tape not to
allow deviation). At this time, the edge of gauge
paper should be aligned.
Align this edge.
100mm
Line drawn
on gauge paper
(2) Extending the line marked on the gauge paper,
mark straight line A on the pipe.
Draw line A.
(3) Mark a line along on edge of the gauge paper.
The intersection of this line and straight line A is
replaced with A
0
.
Draw a line
along the edge.
A
0
(4) In mounting by the V method, peel the gauge
paper and measure the mounting dimension
from A
0
to determine A
2
position. At this posi-
tion, mark a line orthogonal to the straight line
A.
A
0
and A
2
become the mounting positions.
Example) L = 200mm (7.9")
A
0
A
2
200mm
(5) In mounting by the Z method, measure the
circumference from A
0
with a measuring tape.
At 1/2 of the circumference, determine points B
0
and B
1
, and mark a line (straight line B) con-
necting those points.
A
0
A
1
B
1
B
0
Straight line B
A
0,
A
1
B
0,
B
1
(6) Mark the points B
0
and peel off the gauge paper.
Measure the mounting dimension from B
0
to
determine B
2
position. At this position, make a
line orthogonal to the straight line B.
A
0
and B
2
become the mounting positions.
Example) L = 100mm (3.9")
B
2
B
2
B
0
B
0
100mm
A
0
Bulletin F-9-PUX2