Siemens SITRANS F US SONOFLO SONOKIT User manual

Manual, amendment
Order no.: FDK:521H1050
SFIDK.PS.029.Y1.02 - A5E00253229
SITRANS F US SONOFLO
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Ultrasonic flowmeter
Type SONOKIT hot-tap mounted
1- and 2-track DN 200 - DN 4000
Amendment to product manuals for SONOKIT 1- and 2-tracks
[]
*085R9429*
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SFIDK.PS.029.Y1.022
SITRANS F US SONOFLO
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Contents Preface ................................................................................................................................................ 3
Location ............................................................................................................................................... 3
Construction of the sensor ............................................................................................................... 4
Measuring the SONOKIT .................................................................................................................... 8
Drilling ................................................................................................................................................. 11
Installation of the transducers ............................................................................................................. 12
Mounting of transducer ........................................................................................................................ 13
SONOKIT installation with tapping band ........................................................................................... 18
Introduction .......................................................................................................................................... 18
Installation ........................................................................................................................................... 18
Tools for hot-tap installation .............................................................................................................. 23
Description of hot-tap drilling adaptor ................................................................................................. 23
Description of hot-tap alignment tool for pipe sizes DN 300 - DN 1200 ............................................. 24
Description of angle measuring instrument ........................................................................................ 25
Description of lock tool for inserting or replacement of ultrasonic transducers .................................. 26
Ordering .............................................................................................................................................. 27

SFIDK.PS.029.Y1.02 3
SITRANS F US SONOFLO
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To ensure optimum performance of the measuring equipment it is essential that the following
instructions are followed.
Location The SONOKIT sensor can be installed both indoors and
outdoors, even in exposed surroundings.
The space requirements around the pipe for retrofitting
a SITRANS F US SONOFLOultrasonic flowmeter type
SONOKIT are given in picture:
In case of large temperature differences between the
medium and the environment the sensor must be iso-
lated to avoid 2-phase flow which will result in inaccurate
measuring results.
Preface This manual describes how to install SONOKIT on filled and pressurized steel pipes (hot-tap installation).
The manual is meant as an amendment to the current SONOKIT manuals delivered with the kit and contains
only special instructions on the hot-tap installation.
Siemens Flow Instruments recommends that you are familiar with the ordinary installation on empty pipes
before getting on with a hot-tap installation and that you know how to use the special tools used with the
hot-tap installation.
It is also important that you know the limitations e.g. maximum pressure, temperature and required space.
If you have any questions, please contact Siemens Flow Instruments A/S.

SFIDK.PS.029.Y1.024
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Construction of the
sensor
The construction of
the sensor is done
in 4 steps:
1. Marking up the
pipe
2. Installating of the
alignment tool
3. Measuring the
pipe geometry
4. Drilling and
inserting trans-
ducers
Step 1
Mark up a paper drawing as described in
product manual describing the empty pipe
installation.
Mark the centre of the top line X1 – X2 with
a centre punch. This point must form the
centre of the centre point of the alignment
tool.
Also punch points to show the transducer
holder position.
Remove the (drawing/measurement)
paper.
Step 2
Place the cradle from the alignment tool
on top of the pipe. Place the supplied awl
through the centre point of the cradle so
that the cradle is centered in the middle of
the top line X1 – X2.
Use a spirit lever to check that the cradle
is positioned horizontally on/to the pipe-
line. Move e.g. the cradle sideways no
matter whether the centre is moved a little
away from the top line. It is important for
the further installation that the alignment
tool is balanced in horizontal and vertical
positions as the adjustment takes place
by means of a spirit lever.
Spot weld the cradle 3 – 4 places, but see
to it that it can always easily be reposi-
tioned.

SFIDK.PS.029.Y1.02 5
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Mount the alignment tool as shown. It is
recommendable to finish one sound track
at a time and when installing a two-track
meter, it is recommendable to start with
the lowest track.
Use a spirit level to control that the upper
guiding beam is positioned horizontally
and make sure that it is thoroughly fasten-
ed.
Use a spirit level to control that the vertical
guiding beams are plumb.
Shorten the transducer holder according
to the actual pipe wall thickness (t). The
shortening can be done with a grinder or
a saw. Cut parallel to the angle of the
transducer holder.
•At an angle of 45° the transducer
holder is shortened by t x 1.4.
•At an angle of 60° the transducer
holder is shortened by t x 1.15.

SFIDK.PS.029.Y1.026
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Mount the adaptor on the shortened trans-
ducer holders. Then mount guiding
beams as shown.
Adjust the guiding beams until the trans-
ducer holders follow/aim at the marking-
out.
Make sure that the distance between the
two horizontal guiding beams are the
same on both sides of the pipe.
If not, the lower guiding beams with the
transducer holders must be adjusted.
Check that transducer holders and guid-
ing beams run parallel to the upper guid-
ing beam. A visual control or a control by
means of plumb lines will do. Both meth-
ods require that you stand on the pipe.
Tack weld the transducer holders in 3
places and check that also after the tack
welding they are positioned correctly. If
so, the complete welding can be made.
Please note that with hot-tap installations
no mounting plates are needed like is the
case with empty pipe installations.
If during the welding the transducer holder
has bended, it can be adjusted by means
of a hammer and the supplied 1½” end
cap. Check with spirit level.

SFIDK.PS.029.Y1.02 7
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Step 3
Before proceeding it is a good idea to
measure Lmax. of the sound track just
finished. By means of a plumb line the
ends of the transducer holders are
transpositioned to the upper guiding
beam.
Lmax. can now be measured with a meas-
uring tape on the upper guiding beam.
Enter the values in the measuring report.
* Valid for standard 160 mm transducers.
With other transducer lengths, set in dimensions correspond-
ing to these lengths.
*
*
Step 1
The distance between the transducer
windows (L) is calculated based on Lmax
as shown.
The standard transducer length is
160mm. If other lengths have been or-
dered, use the new values in the calcu-
lation.

SFIDK.PS.029.Y1.028
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Measuring the
SONOKIT
To allow theoretical calibration by the SONO
3000 signal converter the sensor geometry must
be measured.
The following sensor data must be known:
⇒θ= Angle between sound track and longi-
tudinal axis of the pipe
⇒L = Distance between transducer windows
⇒Di = Inner diameter of the pipe
⇒h = Distance between sound track and
centre axis of the pipe
∆θDN 400-3000 0.1°
∆L DN 400-1000 0.8 mm
DN 1000-2000 2.0 mm
DN 2000-3000 4.0 mm
∆Di DN 400-1000 0.8 mm
DN 1000-2000 2.0 mm
DN 2000-3000 4.0 mm
∆H DN 400-1000 0.8 mm
DN 1000-2000 2.0 mm
DN 2000-3000 4.0 mm
The table shows the required measuring accu-
racy:
Measuring the inner diameter (Di)
The inner diameter Di can be calculated
on the basis of the circumference C ac-
cording to the following formula:
(t = wall thickness)
Di = (C / π)π)
π)π)
π) - (2 x t)
Measure the angle (
θ
) of each trans-
ducer holder. To get the most accurate
value, it is recommended to take several
measurements and calculate the aver-
age of these. Then calculate the average
angle for each sound track. Enter the
values in the measuring report.
To make sure that angle meter and pipe-
line are level you may place a spirit level
on the angle meter.
Measuring the distance h between sound
track and centre axis
To determine h measure Ha and Hb with
a measuring tape or a sliding gauge and
calculate h using the formula:
Ha + Hb
h = 4
Enter h into the measuring report.

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SFIDK.PS.029.Y1.0210
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