Siemens SITRANS F US SONOFLO SONOKIT Bedienungsanleitung

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*

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

SITRANS F US SONOFLO

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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

SITRANS F US SONOFLO

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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

SITRANS F US SONOFLO

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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

SITRANS F US SONOFLO

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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

SITRANS F US SONOFLO

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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 (

) 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.

SFIDK.PS.029.Y1.02 9

SITRANS F US SONOFLO

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SFIDK.PS.029.Y1.0210

SITRANS F US SONOFLO

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