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Ultrasonic flowmeter
FLUXUS WW
for water and wastewater
User manual
UMFLUXUS_WWV1-1EN
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FLUXUS is a registered trademark of FLEXIM GmbH.
Boxberger Straße 4
FLEXIM GmbH
12681 Berlin
Germany
Tel.: +49 (30) 936 67 660
Fax: +49 (30) 936 67 680
E-mail: [email protected]
www.flexim.com
User manual for
FLUXUS WW
UMFLUXUS_WWV1-1EN, 2018-02-28
Firmware version: V6.28
Copyright (©) FLEXIM GmbH 2018
Subject to change without prior notice.
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FLUXUS WW
Die Sprache, in der die Anzeigen auf dem Messumformer erscheinen, kann eingestellt werden (siehe Abschnitt 9.6).
The transmitter can be operated in the language of your choice (see section 9.6).
Il est possible de sélectionner la langue utilisée par le transmetteur à l'écran (voir section 9.6).
El caudalímetro puede ser manejado en el idioma de su elección (véase la sección 9.6).
De transmitter kan worden gebruikt in de taal van uw keuze (zie paragraaf 9.6).
Имеется возможность выбора языка информации, отображаемой на экране преобразователя (смотри подраздел
9.6).
UMFLUXUS_WWV1-1EN, 2018-02-28
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FLUXUS WW
UMFLUXUS_WWV1-1EN, 2018-02-28
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Table of contents FLUXUS WW
Table of contents
1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 Regarding this user manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1.3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.3 Not intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.4 Safety instructions for the user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.5 Safety instructions for the operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.6 Safety instructions for electrical work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.7 Safety instructions for transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.8 Recommended procedure in hazardous situations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
2.9 Recommended maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 First inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.2 General precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4 General principles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Measurement system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.2 Measurement principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.3 Measurement arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5 Description of the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1 Transmitter design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.2 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6 Measuring point selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 Acoustic penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
6.2 Undisturbed flow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
6.3 Selection of the measurement arrangement taking into account the measuring range and
the measuring conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6.4 Selection of the sound beam plane near an elbow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
7 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.1 Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
7.2 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
7.3 Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
8 Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.1 Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
8.2 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
8.3 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
8.4 Serial interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
8.5 Sensor module (SENSPROM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
8.6 SD card (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
9 Start-up of the transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
9.1 Start-up settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
9.2 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
9.3 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.4 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
9.5 HotCodes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
9.6 Language selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
9.7 Interruption of the power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
. . . . . . . . . . . . . . . . . . . . . . .68
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10 Basic measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10.1 Input of pipe parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10.2 Other parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
10.3 Selection of the channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
10.4 Input of the sound path number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
10.5 Transducer distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
10.6 Start of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
10.7 Detection of the flow direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
10.8 Stop of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
11 Displaying measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.1 Selection of the physical quantity and the unit of measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.2 Toggling between the channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
11.3 Adjustment of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
11.4 Status line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
11.5 Transducer distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
12 Advanced measuring functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.1 Damping factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.2 Totalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
12.3 Settings of the NoiseTrek parallel beam mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
12.4 Settings of the HybridTrek mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
12.5 Upper limit of the flow velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
12.6 Cut-off flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
12.7 Uncorrected flow velocity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
12.8 Measurement of high dynamic flows (FastFood mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
12.9 Calculation channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
12.10 Change of the limit for the inner pipe diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
12.11 Diagnosis by means of the snap function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
12.12 Program code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
13 Data logger and transmission of data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
13.1 Data logger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
13.2 Data transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
14 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
14.1 Time and date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
14.2 Dialogs and menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
14.3 Measurement settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
14.4 Setting the contrast. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
14.5 Instrument information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
15 SuperUser mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
15.1 Activation/deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
15.2 Transducer parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
15.3 Defining flow parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
15.4 Limit of the signal amplification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . 107
15.5 Upper limit of the sound speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
15.6 Detection of long measurement failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
15.7 Number of decimal places of the totalizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
15.8 Manual reset of the totalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
15.9 Display of the totalizer sum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
15.10 Display of the last valid measured value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
15.11 Display during the measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
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Table of contents FLUXUS WW
16 Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
16.1 Installation of an output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
16.2 Error value delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
16.3 Activation of an analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
16.4 Activation of a binary output as a pulse output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
16.5 Activation of a binary output as an alarm output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
16.6 Behavior of the alarm outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
16.7 Deactivation of the outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
17 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
17.1 Problems with the measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
17.2 Measuring point selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
17.3 Maximum acoustic contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
17.4 Application specific problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
17.5 Large deviations of the measured values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
17.6 Problems with the totalizers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
17.7 Data transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Annex
A Menu structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
B Units of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
C Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
D Conformity declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
UMFLUXUS_WWV1-1EN, 2018-02-28 7
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FLUXUS WW Table of contents
8 UMFLUXUS_WWV1-1EN, 2018-02-28
Page 9
1 Introduction FLUXUS WW
1 Introduction
1.1 Regarding this user manual
This user manual has been written for users operating the ultrasonic flowmeter FLUXUS. It contains important information
about the transmitter, how to handle it correctly, and how to avoid damages.
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
Read the safety instructions carefully. Make sure you have read and understood this user manual before using the measuring instrument.
Note! For technical data see Technical specification.
All reasonable effort has been made to ensure the correctness of the content of this user manual. If you, however, find
some erroneous information, please inform us. We will be grateful for any suggestions and comments regarding the concept and your experience working with the measuring instrument.
This will ensure that we can enhance our products for the benefit of our customers and in the interest of technical progress. If you have any suggestions about improving the documentation and particularly this user manual, please let us
know so that we can consider your comments for future reprints.
The contents of this user manual are subject to changes without prior notice. All rights reserved. No part of this user manual may be reproduced in any form without FLEXIM's written permission.
1.2 Safety instructions
The user manual contains instructions that are marked as follows:
Note! This text contains important information about the use of the transmitter.
Attention! This text contains important instructions which should be observed to avoid damage or destruction of
the measuring instrument. Proceed with special care!
This text contains safety instructions for the use in explosive atmospheres.
Observe these safety instructions!
1.3 Warranty
We warrant the reliability of the material and workmanship of FLUXUS for the term specified in the sales contract, provided the measuring instrument is used for the purpose for which it was designed, and operated according to the instructions
given in this user manual. Improper use of the FLUXUS leads to the withdrawal of any warranties of any kind, explicit or
implicit.
Improper use includes:
• replacement of a component of FLUXUS with a component that was not approved by FLEXIM
• unsuitable or insufficient maintenance
• repair of FLUXUS by unauthorized personnel
FLEXIM assumes no responsibility neither for damages to the customer or third persons directly caused by material failure
due to unpredictable defects in the product nor for any indirect damages.
FLUXUS is a very reliable instrument. It is manufactured under strict quality control using modern production techniques.
If installed as recommended in an appropriate location, used cautiously and serviced conscientiously, no troubles should
appear.
If any problem appears which cannot be solved with the help of this user manual (see chapter 17), contact our sales office
and give a precise description of the problem. Specify the type, the serial number and the firmware version of the transmitter.
UMFLUXUS_WWV1-1EN, 2018-02-28 9
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FLUXUS WW 2 Safety instructions
2 Safety instructions
2.1 General safety instructions
Prior to any work, read the user manual carefully and in full.
Failure to comply with the instructions, in particular with the safety instructions, poses a risk to health and can lead to
material damages. If you have any questions, please contact FLEXIM.
During installation and operation of the measuring equipment, observe the ambient and installation conditions specified in
the documentation.
The following symbols are affixed to the measuring equipment:
symbol meaning
direct current
connection to ground
ground conductor terminal
warning of voltage
i
i
The measuring equipment has to be checked for proper condition and operational safety before each use. If disturbances
or damages have occurred during installation or operation of the measuring equipment, please inform FLEXIM.
It is not allowed to make unauthorized modifications or alterations to the measuring equipment.
If the measuring point is within an explosive atmosphere, the danger zone and present explosive atmosphere have to be
determined. The transmitter, transducers and accessories have to be appropriate and approved for the conditions in this
zone.
The personnel has to be suitably trained and experienced for the work.
Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document). Observe the instructions
for hazardous substances and the respective safety data sheets. Observe the regulations for the disposal of electrical equipment.
observe the user manual
Attention!
2.2 Intended use
The measuring equipment is intended for the measurement of fluid properties in closed pipes. By means of connected
transducers, the transit times of the ultrasonic signals in the fluid and the pipe as well as other related properties, such as
temperature and pressure, are measured and evaluated.
The transmitter uses these values to calculate the sought quantities, e.g., volumetric flow rate, mass flow rate, heat quantity, density and concentration. Through comparison with the values stored in the transmitter further quantities can be
determined. The quantities are provided via configurable outputs and the display.
• All instructions of this user manual have to be observed to ensure intended use.
• Any use beyond or other than the intended use is not covered by warranty and can present a danger. Any damage arising from not intended use shall be solely the liability of the operator or user.
• The measurement is carried out without direct contact to the fluid in the pipe. The flow profile is not influenced.
• The transducers are fixed to the pipe using the supplied transducer mounting fixture.
10 UMFLUXUS_WWV1-1EN, 2018-02-28
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2 Safety instructions FLUXUS WW
• If an extension cable is required to connect the transducers to the transmitter, a junction box can be used (optional). Observe the safety instructions in the user manual. For the technical data of the junction box, see Technical specification.
• Observe the operating conditions, e.g., environment, voltage ranges. For the technical data of the transmitter, transducers and accessories, see Technical specification.
2.3 Not intended use
Not intended use in terms of a misuse means:
• any work on the measuring equipment without observing all instructions in this user manual
• use of transmitter, transducer and accessories combinations not intended by FLEXIM
• installation of the transmitter, transducers and accessories in explosive atmospheres they are not approved for
• any work on the measuring equipment (e.g., installation, dismounting, connection, start-up, operation, service and maintenance) carried out by unauthorized and untrained personnel
• storage, installation and operation of the measuring equipment outside the specified ambient conditions (see Technical
specification)
2.4 Safety instructions for the user
Any work on the measuring equipment has to be carried out by authorized and suitably trained personnel. Observe the
safety instructions in the user manual. For the technical data of the transmitter, transducers and accessories, see Technical specification.
• Observe the safety and accident prevention regulations applicable on the site of operation.
• Only use the supplied mounting fixtures and transducers as well as the intended accessories.
• Always wear the required personal protective equipment.
2.5 Safety instructions for the operator
• The operator shall qualify the personnel to perform their assigned tasks. They shall provide the required personal protective equipment and oblige the personnel to wear it. It is recommended to risk assess the workplace.
• Besides the safety instructions in this user manual, the health, safety and environment regulations applicable for the
range of application of the transmitter, transducers and accessories have to be observed.
• With the exceptions stated in chapter 11, the measuring equipment is maintenance-free. Any components and spare
parts may only be replaced by FLEXIM. The operator shall carry out periodic checks for changes or damages that can
present a danger. If you have any questions, please contact FLEXIM.
• Observe the specifications for the installation and connection of the transmitter, transducers and accessories (see chapter 5 and chapter 6).
2.6 Safety instructions for electrical work
• Prior to any work on the transmitter (e.g., installation, dismounting, connection, service and maintenance), the transmitter has to be disconnected from the power supply. It is not sufficient to remove the internal fuse of the instrument (see
section 6.3).
• Electrical work may only be carried out if there is enough space.
• Only open the transmitter in safe ambient conditions (e.g., air humidity < 90 %, no conductive pollution, no explosive atmosphere). Otherwise, additional protective measures have to be taken.
• The degree of protection of the transmitter is only ensured if all cables are fitted tight using the cable glands and the
housings are firmly screwed.
• The condition and tight fit of the electrical connections have to be checked at regular intervals.
• When connecting the transmitter to the power supply, an appropriate cutoff device according to IEC 60947-1 and IEC
60947-3 has to be installed as disconnector. The cutoff device has to disconnect all live wires. The ground conductor
connection must not be interrupted. The cutoff device has to be easily accessible and clearly marked as a disconnector
for the transmitter. It should be located near the transmitter.
If the transmitter is used in an explosive atmosphere, the cutoff device has to be installed outside the explosive atmosphere. If this is not possible, it has to be installed in the least hazardous area.
• The connection may only be made to networks up to overvoltage category II. When connecting the inputs and outputs as
well as the power supply, observe the installation instructions, in particular the terminal assignment.
• The front plate must not be removed (see Fig. 2.1). The transmitter does not contain any components to be maintained
by the user. For repair and service work, please contact FLEXIM.
• Observe the safety and accident prevention regulations for electrical systems and equipment.
UMFLUXUS_WWV1-1EN, 2018-02-28 11
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FLUXUS WW 2 Safety instructions
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
front plate
Fig. 2.1: Transmitter FLUXUS FWW
2.7 Safety instructions for transport
• If you detect a transport damage when unpacking the delivery, please contact the supplier or FLEXIM immediately.
• The transmitter is a sensitive electronic measuring instrument. Avoid shocks or impacts.
• Handle the transducer cable with care. Avoid sharp bends or kinks. Observe the ambient conditions.
• Select a solid surface to put the transmitter, transducers and accessories on.
• The transmitter, transducers and accessories have to be properly packed for transport:
– Use, if possible, the original packaging by FLEXIM or an equivalent cardboard box.
– Position the transmitter, transducers and accessories in the middle of the cardboard box.
– Fill any voids with appropriate packaging material (e.g., paper, foam, bubble wrap).
– Protect the cardboard box against humidity.
2.8 Recommended procedure in hazardous situations
Fire fighting measures
• If possible, disconnect the transmitter from the power supply.
• Prior to extinguishing, protect any electrical parts that are not affected by the fire (e.g., using a cover).
• Select a suitable extinguishing agent. Avoid, if possible, conductive extinguishing agents.
• Observe the applicable minimum distances. The minimum distances differ depending on the used extinguishing agent.
2.9 Recommended maintenance intervals
To ensure security, the following maintenance intervals are recommended:
what when
visual inspection for corrosion and damages annually
check of the transducer coupling annually
reading of measured and diagnostic values annually
firmware update check for updates: annually
update as required
replacement of wearing parts backup battery on the main board
replaced by FLEXIM if required
calibration recommendation see chapter 17, section "Calibration"
12 UMFLUXUS_WWV1-1EN, 2018-02-28
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3 Handling FLUXUS WW
3 Handling
3.1 First inspection
The transmitter has already been tested thoroughly at factory. At delivery, proceed to a visual control to make sure that no
damage has occurred during transportation.
Make sure that the specifications of the delivered transmitter correspond to the specifications given on the purchase order.
The type and the serial number of the transmitter are shown on the nameplate. The transducer type is printed on the transducers.
3.2 General precautions
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
FLUXUS is a precision measuring instrument and has to be handled with care. In order to obtain good measurement results and to avoid damaging the transmitter, it is important to pay special attention to the instructions given in this user
manual, particularly to the following points:
• Protect the transmitter from shocks.
• The housing may only be opened by authorized personnel. The degree of protection of the transmitter FLUXUS WW is
only ensured if the front plate is tightly screwed to the housing.
• Keep the transducers clean. Handle the cables with care. Avoid excessive cable bends.
• Make sure to work under correct ambient and operating temperatures. The ambient temperature at the measuring point
has to be within the operating temperature range of the transmitter and the transducers (see Technical specification).
• Observe the degree of protection (see Technical specification).
3.3 Cleaning
• Clean the transmitter with a soft cloth. Do not use detergents.
• Remove traces of the coupling compound from the transducers with a soft paper towel.
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FLUXUS WW 4 General principles
transducers
transmitter
pipe
4 General principles
In ultrasonic flow measurements, the flow velocity of the fluid in a pipe is determined. Further physical quantities (e.g., volumetric flow rate, mass flow rate) are derived from the flow velocity and from additional physical quantities, if necessary.
4.1 Measurement system
The measurement system consists of a transmitter, the ultrasonic transducers with the transducer cables and the pipe on
which the measurement is conducted.
The ultrasonic transducers are mounted on the outside of the pipe. They send and receive ultrasonic signals through the
fluid. The transmitter controls the measuring cycle, eliminates disturbance signals and analyzes useful signals. The measured values can be displayed, used for calculations and transmitted by the transmitter.
Fig. 4.1: Example of a measurement setup
4.2 Measurement principle
The flow velocity of the fluid is measured in the TransitTime mode using the ultrasonic-transit time difference correlation
principle (see section 4.2.2). If the proportion of gas or solid particles is too high, the transmitter can toggle to the NoiseTrek mode (see section 4.2.3).
4.2.1 Terms
Flow profile
Distribution of flow velocities over the cross-sectional pipe area. For an optimal measurement, the flow profile has to be
fully developed and axisymmetrical. The shape of the flow profile depends on whether the flow is laminar or turbulent and
is influenced by the conditions in the supply line of the measuring point (see chapter 6).
Reynolds number Re
Coefficient describing the turbulence behavior of a fluid in the pipe. The Reynolds number Re is calculated from the flow
velocity, the kinematic viscosity of the fluid and the inner pipe diameter.
If the Reynolds number exceeds a critical value (usually approx. 2 300, if the fluid flows in a pipe), a transition from a laminar flow to a turbulent flow takes place.
Laminar flow
A flow without any turbulence. There is no mixing between the parallel flowing layers of the fluid.
Turbulent flow
A flow with turbulences (swirling of the fluid). In technical applications, the flow in the pipe is mostly turbulent.
Transition range
The flow is partly laminar and partly turbulent.
Transit time difference ∆t
Difference of the transit times of the signals. In the TransitTime method, the transit time difference of the signals in and
against the flow direction is measured, in the NoiseTrek mode, the time difference of the signal from the transducer to the
particle and vice versa. The flow velocity of the fluid flowing in the pipe is determined from the transit time difference (see
Fig. 4.2, Fig. 4.3 and Fig. 4.4).
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4 General principles FLUXUS WW
c
sin
------------
c
sin
------------
c
sin
------------
c
sin
-----------
V·V·m·m·V·V
·
t
2tfl
----------- -
Sound speed c
Speed of the propagating sound. The sound speed depends on the mechanical properties of the fluid or the pipe material.
In pipe materials and other solid materials, a distinction is made between the longitudinal and transversal sound speed.
For the sound speed of some fluids and materials, see annex C.1.
Flow velocity v
Average value of all flow velocities of the fluid over the cross-sectional pipe area.
Acoustic calibration factor k
a
ka =
The acoustic calibration factor k
is a transducer parameter which results from the sound speed c within the transducer
a
and the angle of incidence (see Fig. 4.2). According to Snell's law of refraction, the angle of propagation in the adjoining
fluid or pipe material is:
= = =
k
a
Fluid mechanics correction factor k
Re
With the fluid mechanics correction factor kRe, the measured value of the flow velocity in the area of the sound beam is
converted into the value of the flow velocity across the whole cross-sectional pipe area. In case of a fully developed flow
profile, the fluid mechanics correction factor only depends on the Reynolds number and the roughness of the inner pipe
wall. The fluid mechanics correction factor is recalculated by the transmitter for each new measurement.
Volumetric flow rate
= v · A
The volume of the fluid that passes through the pipe per unit time. The volumetric flow rate is calculated from the product
of the flow velocity v and the cross-sectional pipe area A.
Mass flow rate
= · ρ
The mass of the fluid that passes through the pipe per unit time. The mass flow rate is calculated from the product of the
volumetric flow rate and the density ρ.
4.2.2 Measurement of the flow velocity in the TransitTime mode
The signals are sent and received by two transducers alternatively in and against the flow direction. If the fluid is moving,
the signals propagating in the fluid are displaced with the flow. This displacement causes a reduction in distance for the
signal in flow direction and an increase in distance for the signal against the flow direction in the section of the receiving
transducer (see Fig. 4.2 and Fig. 4.3). This causes a change in the transit times. The transit time of the signal in flow direction is shorter than the transit time against the flow direction. This transit time difference is proportional to the average flow
velocity.
The average flow velocity of the fluid is calculated as follows:
· ka ·
v = k
Re
with
v – average flow velocity of the fluid
k
– fluid mechanics correction factor
Re
ka– acoustic calibration factor
∆t – transit time difference
t
– transit time in the fluid
fl
UMFLUXUS_WWV1-1EN, 2018-02-28 15
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FLUXUS WW 4 General principles
transducer (emitter)
flow direction
of the fluid
sound path without flow
sound path with flow
pipe wall
α
β
γ
c
α
c
α
c
γ
c
β
transducer (receiver)
distance reduction
in the transducer
flow direction
of the fluid
sound path without flow
sound path with flow
α
β
γ
c
α
c
α
c
γ
c
β
distance increase
in the transducer
pipe wall
transducer (receiver)
transducer (emitter)
∆t
signal in the
flow direction
signal against
the flow direction
Fig. 4.2: Sound path of the signal in the flow direction
Fig. 4.3: Sound path of the signal against the flow direction
16 UMFLUXUS_WWV1-1EN, 2018-02-28
Fig. 4.4: Transit time difference ∆t
Page 17
4 General principles FLUXUS WW
t
2tS
----------- -
gas bubble or
solids particle at t
gas bubble or
solids particle at t+t
s
transducer
signal 1
flow direction
of the fluid
signal 2
4.2.3 Measurement of the flow velocity in the NoiseTrek mode
When fluids with a high proportion of gas bubbles or solid particles are measured, the attenuation of the ultrasonic signal
increases and can inhibit the propagation of the signal in the fluid. A measurement in the TransitTime mode is no longer
possible.
The NoiseTrek mode uses the presence of gas bubbles and solid particles in the fluid. The measurement setup used in
the TransitTime mode does not need to be changed. Ultrasonic signals are sent into the fluid at short intervals, reflected
by the gas bubbles and/or the solids particles and again received by the transducer. The transit time difference between 2
consecutive measuring signals that are reflected by the same particle is determined. The transit time difference is proportional to the distance covered by the particle in the time between the 2 measuring signals and therefore to the velocity at
which the particle moves through the pipe (see Fig. 4.5).
The average value of all measured velocities of gas bubbles and/or particles corresponds to the flow velocity of the fluid:
· ka ·
v = k
Re
where
v – average flow velocity of the fluid
k
– fluid mechanics correction factor
Re
ka– acoustic calibration factor
∆t – transit time difference of the measuring signals
ts– time interval between the measuring signals
Fig. 4.5: Measurement of the flow velocity in the NoiseTrek mode
Depending on the signal attenuation, the error of measurement in the NoiseTrek mode can be greater than in the TransitTime mode.
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FLUXUS WW 4 General principles
NoiseTrek parallel beam
For small pipes or highly damping fluids, the transit time in the fluid is very small. This leads to a deterioration of the signal
quality. In this case the NoiseTrek mode has to be used.
The NoiseTrek parallel beam mode works the same way the NoiseTrek mode does, the only difference is that the sending
and receiving process do not occur in the same transducer. A better signal quality for small pipes and highly damping fluids is achieved by separating the sending and receiving signal. The transducers are mounted in parallel on the pipe at a
small angle (see Fig. 4.6). A measurement in TransitTime mode is not possible when working with this measurement arrangement.
Fig. 4.6: Measurement arrangement in the NoiseTrek parallel beam mode
4.2.4 HybridTrek Mode
The HybridTrek mode combines the TransitTime mode and the NoiseTrek mode. During a measurement in the HybridTrek mode, the transmitter automatically toggles between the TransitTime mode and the NoiseTrek mode depending
on the gaseous or solid content.
4.3 Measurement arrangements
4.3.1 Terms
Diagonal arrangement
The transducers are mounted on the opposite sides of the pipe (see Fig. 4.7).
Reflection arrangement
The transducers are mounted on the same side of the pipe (see Fig. 4.8).
Fig. 4.7: Diagonal arrangement Fig. 4.8: Reflection arrangement
Sound path
The distance covered by the ultrasonic signal after crossing the pipe once. The number of the sound paths is:
• odd if the measurement is conducted in diagonal arrangement (see Fig. 4.7)
• even if the measurement is conducted in reflection arrangement (see Fig. 4.8).
Beam
The path covered by the ultrasonic signal between the transducers: the transducer emitting the ultrasonic signal and the
transducer receiving it. A beam consists of 1 or several sound paths (see Fig. 4.9 or Fig. 4.10).
Fig. 4.9: 1 beam, 4 sound paths, reflection arrangement Fig. 4.10: 2 beams, 3 sound paths, diagonal arrangement
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4 General principles FLUXUS WW
transducer distance
transducer distance
transducer distance
2 beams
in 1 plane
2 sound paths
in 1 plane
Transducer distance
Distance between the transducers. It is measured between the inner edges of the transducers.
reflection arrangement
diagonal arrangement
(positive transducer distance)
diagonal arrangement
(negative transducer distance)
Sound beam plane
Plane containing 1, 2 or more sound paths or beams (see Fig. 4.11).
Fig. 4.11: Sound paths and beams in 1 plane
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FLUXUS WW 4 General principles
X arrangement
displaced
X arrangement
4.3.2 Examples
diagonal arrangement with 1 beam reflection arrangement with 1 beam
1 transducer pair
1 sound path
1 beam
1 plane
1 transducer pair
2 sound paths
1 beam
1 plane
diagonal arrangement with 2 beam reflection arrangement with 2 beams and 2 planes
2 transducer pairs
2 sound paths
2 beams
1 plane
2 transducer pairs
4 sound paths
2 beams
2 planes
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Page 21
5 Description of the transmitter FLUXUS WW
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
2x 16-digit LCD display,
backlit
serial interface RS232
transducers
outputs
power supply
keyboard
cover plate
equipotential bonding terminal
(FLUXUS F704**-A2)
4
6
8
2
4
6
8
2
5 Description of the transmitter
Attention! The degree of protection of the transmitter is only ensured if the cable glands are firmly tightened and the
housing is tightly screwed.
5.1 Transmitter design
The command panel can be accessed by opening the front plate.
5.2 Keyboard
The keyboard consists of the 3 function keys ENTER, BRK and C and 10 numerical keys.
Several keys have double functions. They can be used to enter data or to navigate through scroll lists.
The arrow-shaped numerical keys , , and are used as cursor keys in the selection mode and for entering digits and letters in the input mode.
Tab. 5.1: General functions
ENTER confirmation of selection or input
BRK + C + ENTER RESET: Press these 3 keys simultaneously to correct a malfunction. The reset has the same effect
BRK interruption of the measurement and selection of the main menu
Tab. 5.2: Navigation
BRK selection of the main menu
ENTER confirmation of the selected menu item
Fig. 5.1: Command panel of FLUXUS WW
as a restart of the transmitter. Stored data are not affected.
Be careful not to stop a current measurement by inadvertently pressing key BRK!
scroll to the left/right through a scroll list
scroll upwards/downwards through a scroll list
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FLUXUS WW 5 Description of the transmitter
4
6
5
8
2
Tab. 5.3: Input of numbers
... input of the number shown on the key
sign for the input of negative values
decimal marker
C Deleting values. After the value has been deleted, the previous value will be displayed.
ENTER confirmation of the input
Tab. 5.4: Input of text
positioning of the cursor
changing the currently selected character to an "A"
changing the currently selected character to a "Z"
changing between small and capital letters
selection of the previous/next ASCII character
deleting the character and inserting a blank
Automatic scrolling up or down through the limited ASCII character set. The character changes
every second. The scrolling is stopped by pressing any other key.
ENTER finishing editing
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6 Measuring point selection FLUXUS WW
6 Measuring point selection
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
The correct selection of the measuring point is crucial for achieving reliable measurement results and a high measurement
accuracy.
A measurement on a pipe is possible if
• the ultrasound propagates with sufficiently high amplitude (see section 6.1)
• the flow profile is fully developed (see section 6.2)
The correct selection of the measuring point and the correct transducer positioning guarantee that the sound signal will be
received under optimum conditions and evaluated correctly.
Due to the variety of applications and the different factors that influence the measurement, there is no standard solution for
the transducer positioning. The measurement is influenced by the following factors:
• diameter, material, lining, wall thickness and shape of the pipe
• fluid
• gas bubbles in the fluid
Avoid measuring points:
• in the vicinity of deformations and defects of the pipe and in the vicinity of welds
• with deposit formation in the pipe
Make sure that the pipe surface at the selected measuring point is even. The pipe may not be corrugated.
The ambient temperature at the measuring point has to be within the operating temperature range of the sensors (see
Technical specification).
Select the location of the transmitter within the cable range of the measuring point.
The ambient temperature at the measuring point has to be within the operating temperature range of the transmitter and
the sensor (see Technical specification).
If the measuring point is within an explosive atmosphere, the danger zone and gases that may be present have to be determined. The transducers and the transmitter have to be appropriate for these conditions.
6.1 Acoustic penetration
The pipe has to be acoustically penetrable at the measuring point. The acoustic penetration is reached when pipe and fluid do not attenuate the sound signal so strongly that it is completely absorbed before reaching the second transducer.
The attenuation caused by the pipe and the fluid depends on:
• kinematic viscosity of the fluid
• proportion of gas bubbles and solids in the fluid
• deposits on the inner pipe wall
• pipe material
The following requirements have to be met at the measuring point:
• the pipe is always filled completely
• no material deposits in the pipe
• no bubbles accumulate
Note! Even bubble-free fluids can form gas pockets when the fluid expands, e.g., before pumps and after
great cross-section extensions.
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FLUXUS WW 6 Measuring point selection
Observe the notes in the following table:
Tab. 6.1: Recommended transducer mounting position
horizontal pipe
Select a measuring point where the transducers can be mounted on the side of the pipe, allowing the sound waves to
propagate horizontally in the pipe. Thus, solids on the bottom of the pipe or gas bubbles in the pipe's upper part are prevented from influencing the propagation of the signal.
correct: disadvantageous:
vertical pipe
Select the measuring point in such way that the fluid flows upward. The pipe has to be completely filled.
correct: disadvantageous:
free inlet or outlet pipe section
Select the measuring point at a pipe section where the pipe cannot run empty.
correct: disadvantageous:
correct: disadvantageous:
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6 Measuring point selection FLUXUS WW
l
l
l
l
l
l
6.2 Undisturbed flow profile
Some flow elements (elbows, slide valves, valves, control valves, pumps, reducers, diffusers, etc.) distort the flow profile
in their vicinity. The axisymmetrical flow profile needed for correct measurement is no longer given. A careful selection of
the measuring point helps to reduce the impact of disturbance sources.
It is most important that the measuring point is chosen at a sufficient distance from any disturbance sources. Only then it
can be assumed that the flow profile in the pipe is fully developed. However, measuring results can be obtained even if the
recommended distance to disturbance sources cannot be observed for practical reasons.
The recommended straight inlet and outlet pipe lengths for different types of flow disturbance sources are shown in the examples in Tab. 6.2.
Tab. 6.2: Recommended distance from disturbance sources; D – nominal pipe diameter at the measuring point, l – recommended distance
disturbance source: 90° elbow
inlet: l ≥ 10 D outlet: l ≥ 5 D
disturbance source: 2 x 90° elbows on different levels
inlet: l ≥ 40 D outlet: l ≥ 5 D
disturbance source: valve
inlet: l ≥ 40 D outlet: l ≥ 5 D
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FLUXUS WW 6 Measuring point selection
l
l
l
p
Tab. 6.2: Recommended distance from disturbance sources; D – nominal pipe diameter at the measuring point, l – recommended distance
disturbance source: reducer
inlet: l ≥ 10 D outlet: l ≥ 5 D
disturbance source: pump
inlet: l ≥ 20 D
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6 Measuring point selection FLUXUS WW
X arrangement
displaced
X arrangement
6.3 Selection of the measurement arrangement taking into account the measuring range
and the measuring conditions
Diagonal arrangement with 1 beam Reflection arrangement with 1 beam
• wider flow velocity and sound speed range compared to
the reflection arrangement
• use in the presence of deposits on the inner pipe wall or
with strongly attenuating gases or liquids (due to 1 sound
path)
• smaller flow velocity and sound speed range compared
to the diagonal arrangement
• transverse flow effects are compensated for because the
beam crosses the pipe in 2 directions
• higher accuracy of measurement because the accuracy
increases with the number of sound paths
Diagonal arrangement with 2 beams Reflection arrangement with 2 beams and 2 planes
• same characteristics as reflection arrangement with 2
beams
• additional characteristic:
influences of the flow profile are compensated due to
measurement takes place in 2 planes
• same characteristics as diagonal arrangement with 2
beams
• additional characteristic:
transverse flow effects are compensated due to measurement is conducted with 2 beams
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FLUXUS WW 6 Measuring point selection
elbow plane
flow direction
elbow plane
flow direction
flow direction
flow direction
6.4 Selection of the sound beam plane near an elbow
Vertical pipes Horizontal pipes
• The sound beam plane (see section 4.3.1) has an angle
of 90° to the elbow plane. The elbow is upstream of the
measuring point.
• The sound beam plane (see section 4.3.1) has an angle
of 90°± 45° to the elbow plane. The elbow is upstream
of the measuring point.
Measurements in both directions Measurements in the reflection arrangement with 2
beams and 2 planes
• The sound beam plane (see section 4.3.1) is selected
according to the nearest elbow (horizontal or vertical, depending on the pipe orientation - see above).
• The 2 sound beam planes (see section 4.3.1) have an
angle of 45° to the elbow plane. The elbow is upstream
of the measuring point.
• With horizontal pipes, the transducers are mounted on
the upper half of the pipe.
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7 Installation FLUXUS WW
265
163
fixing hole for wall
mounting
Ø 4.50
7 Installation
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
7.1 Location
• Select the measuring point according to the recommendations in chapter 4 and 6.
• Select the location of the transmitter within the cable range of the measuring point.
The ambient temperature at the location has to be within the operating temperature range of the transmitter and the transducers (see Technical specification).
If the measuring point is within an explosive atmosphere, the danger zones and gases that might be present have to be
determined. The transducers and the transmitter have to be appropriate for these conditions.
7.2 Transmitter
7.2.1 Opening and closing the housing
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
Opening
• Loosen the 4 housing screws of the transmitter.
• Open the front plate of the transmitter.
Closing
Attention! The degree of protection of the transmitter is only ensured if the cable glands are firmly tightened and
the housings are tightly screwed.
• Close the front plate.
• Tighten the 4 housing screws of the transmitter.
7.2.2 Wall installation
• Loosen the 4 housing screws of the transmitter.
• Open the front plate of the transmitter.
• Fix the transmitter to the wall (see Fig. 7.1).
AGN
BGN
AR
BR
BVSBV
AVSAV
ARS
BRS
SB4
SA2
SB2
SA1
SB1
SA3
SB3
SA4
T4A
B-
T3B
T4B
T1B
T3A
T1A
S3
S1 T2A
T2B
S2 T2a
T4a
T3b
T2b
T3a
T1a
S4
T4b
T1b
P5a
A+
P4+
P3+
P1+ P2+
P6a P7a
P5b
103
P4-
101
P6b
P1- P2-
P3-
P7b
PE
L(+)
N(-)
Fig. 7.1: FLUXUS WW (dimensions in mm)
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FLUXUS WW 7 Installation
1
2
3
4
7.2.3 Pipe installation
Installation on a 2'' pipe
The pipe mounting kit is fixed to the pipe using a shackle.
• Fix the pipe mounting plate (2) and the instrument mounting plate (3) to the pipe using the nuts (4) and the shackle (1)
(see Tab. 7.1 and Fig. 7.2).
• Use the screws to fix the transmitter to the instrument mounting plate (see Fig. 7.3).
Installation on a pipe > 2"
The pipe mounting kit is fixed to the pipe using tension straps.
• Insert the tension straps into the holes (5) of the pipe mounting plate (2) and the instrument mounting plate (3) (see Tab.
7.1 and Fig. 7.4).
• Fix the pipe mounting plate and the instrument mounting plate to the pipe using the tension strap.
• Use the screws to fix the transmitter to the instrument mounting plate (see Fig. 7.3).
Tab. 7.1: Parts of the mounting kit
number designation
1shackle
2 pipe mounting plate
3 instrument mounting plate
4nut
5 tension strap
Fig. 7.2: Installation of the instrument mounting plate
Fig. 7.3: Installation of the transmitter
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7 Installation FLUXUS WW
5
2
3
2
3
Fig. 7.4: Pipe installation with tension straps
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FLUXUS WW 7 Installation
transducer distance
7.3 Transducers
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
7.3.1 Pipe preparation
• The pipe has to be stable. It has to be able to withstand the pressure exerted by the transducer mounting fixture.
Rust, paint or deposits on the pipe absorb the sound signal. A good acoustic contact between the pipe and the transducers is obtained as follows:
• Clean the pipe at the selected measuring point:
– If present, the paint layer has to be smoothed by sanding. The paint does not need to be removed completely.
– Remove rust or loose paint.
• Use coupling foil or apply a strip of acoustic coupling compound along the center line of the contact surface of the transducers.
• Observe that there must be no air pockets between the transducer contact surface and the pipe wall.
7.3.2 Orientation of the transducers and transducer distance
Mount the transducers onto the pipe in such way that the engravings on the transducers form an arrow (see Fig. 7.5). The
transducer cables show in opposite directions.
The transducer distance is the distance between the inner edges of the transducers (see section 4.3 and Fig. 7.5).
For the determination of the flow direction, see section 10.7.
Fig. 7.5: Correct orientation of the transducers and transducer distance
Select the installation instructions that correspond to the supplied transducer mounting fixture:
• Variofix L: see section 7.3.3
• Variofix C: see section 7.3.4
• transducer shoe and tension strap: see section 7.3.5
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Installation FLUXUS WW
2 x Variofix L
4 x band clamp clasp
with tension strap
4 x quick release clasp
with tension strap
4 x ratchet clasp and
tension strap coil
1 x transducer pair
or
or
7.3.3 Transducer mounting fixture Variofix L (PermaRail)
When measuring in reflection arrangement, the transducer mounting fixtures are mounted on the same side of the pipe
(see Fig. 7.6).
When measuring in diagonal arrangement, the transducer mounting fixtures are mounted on the opposite sides of the pipe
(see Fig. 7.7).
In the following, the installation of 2 transducer mounting fixtures in reflection arrangement is described (one transducer
mounting fixture for each transducer).
Fig. 7.6: Transducer mounting fixture Variofix L
(reflection arrangement)
Fig. 7.7: Transducer mounting fixture Variofix L
Overview of the mounting steps
• step 1
disassemble the transducer mounting fixture Variofix L
• step 2
fix the clasps to the tension straps
• step 3
fix one tension strap to the pipe
• step 4
screw the rail to the tension strap and fix it with the second tension strap
• step 5
insert the transducer in the cover, screw the cover with the transducer to the rail
(diagonal arrangement)
Fig. 7.8: Scope of delivery
If the transducer distance is small and when measuring in reflection arrangement, only one transducer mounting fixture
has to be mounted (see Tab. 7.1).
Note! When measuring in diagonal arrangement with 2 beams in X arrangement (see section 6.3), 4 trans-
ducer mounting fixtures have to be mounted.
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FLUXUS WW Installation
cover
rail
tension strap clamp
nut
screw
Tab. 7.1: Approximate values for the mounting of a Variofix L
transducer frequency
(third character of the technical type)
length of the rail
[mm]
length of the transducer
[mm]
Q 176 < 69
M, P 234 < 84 (Lamb wave transducers)
< 100 (shear wave transducers)
G, H, K (all but ****LI*) 348 < 89
F, G, H, K (only ****LI*) 368 < 94
7.3.3.1 Disassembly of Variofix L
• Disassemble the transducer mounting fixture Variofix L (see Fig. 7.9).
Fig. 7.9: Disassembly of Variofix L
7.3.3.2 Fixing the clasps to the tension straps
Select the installation instructions that correspond to the supplied clasp:
Band clamp clasp
The clasp is fixed to the tension strap (see Fig. 7.10).
Quick release clasp
The clasp is fixed to the tension strap (see Fig. 7.11).
• Cut the tension straps to length (pipe circumference + at least 120 mm).
Fig. 7.10: Band clamp clasp with tension strap Fig. 7.11: Quick release clasp with tension strap
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Installation FLUXUS WW
1 2
1
metal spring
tension strap clamp
clasp
Ratchet clasp
• Cut the tension strap to length (pipe circumference + at least 120 mm).
Attention! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges.
• Insert approx. 100 mm of the tension strap into part 1 and 2 of the clasp (see Fig. 7.12 a).
• Bend the tension strap.
• Insert the tension strap into part 1 of the ratchet clasp (see Fig. 7.12 b).
• Tighten the tension strap.
• Repeat the steps for the second tension strap.
a b
Fig. 7.12: Ratchet clasp with tension strap
7.3.3.3 Fixing the tension strap to the pipe
One tension strap is fixed to the pipe (see Fig. 7.13). The second tension strap is mounted later.
Fig. 7.13: Tension strap with tension strap clamp and metal spring on the pipe
Select the installation instructions that correspond to the supplied clasp:
Band clamp clasp
• Insert the tension strap into the tension strap clamp (see Fig. 7.14).
• Position the clasp and the tension strap clamp on the pipe (see Fig. 7.13). On a horizontal pipe, mount the tension strap
clamp on the side of the pipe, if possible.
• Place the tension strap around the pipe and insert it into the clasp (see Fig. 7.16).
• Tighten the tension strap.
• Tighten the screw of the clasp.
Quick release clasp
• Insert the tension strap into the tension strap clamp and the metal spring (see Fig. 7.14 and Fig. 7.15).
• Position the clasp, the metal spring and the tension strap clamp on the pipe (see Fig. 7.13):
– on a horizontal pipe, mount the tension strap clamp on the side of the pipe, if possible
– mount the metal spring on the opposite side of the tension strap clamp
• Place the tension strap around the pipe and insert it into the clasp (see Fig. 7.17).
• Tighten the tension strap.
• Tighten the screw of the clasp.
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FLUXUS WW Installation
tension strap clamp
metal spring
screw of the clasp
screw of the clasp
metal spring
tension strap clamp
3
lever
sense of rotation
cut
screw of the clasp
Fig. 7.14: Tension strap with tension strap clamp Fig. 7.15: Tension strap with metal spring
Fig. 7.16: Band clamp clasp with tension strap Fig. 7.17: Quick release clasp with tension strap
Ratchet clasp
• Insert the tension strap into the tension strap clamp and the metal spring (see Fig. 7.18). It is not necessary to mount the
metal spring:
– on steel pipes or
– on pipes with an outer pipe diameter < 80 mm or
– on pipes that are not subjected to significant temperature fluctuations.
• Position the clasp, the metal spring (if necessary) and the tension strap clamp on the pipe (see Fig. 7.13):
– on a horizontal pipe, mount the tension strap clamp on the side of the pipe, if possible
– mount the metal spring on the opposite side of the tension strap clamp (if necessary)
• Place the tension strap around the pipe and insert it into part 3 of the clasp (see Fig. 7.19).
• Tighten the tension strap.
• Cut off the protruding tension strap (see Fig. 7.19).
Attention! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges.
• Tighten the screw of the clasp.
Fig. 7.18: Tension strap with metal spring and tension strap clamp
Fig. 7.19: Ratchet clasp with tension strap
Attention! To release the screw and the tension strap press the lever down (see Fig. 7.19).
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Installation FLUXUS WW
Observe the
orientation!
nut
tension strap 1
nut
tension strap 2
tension strap 2
tension strap 1
nut
clasp
metal spring
tension strap 1
7.3.3.4 Fixing the rail to the pipe
• Place one tension strap clamp in the rail (see tension strap clamp 1 in Fig. 7.20). Observe the orientation of the tension
strap clamp.
• Tighten the nut of tension strap clamp 1 slightly.
• Screw the rail to tension strap clamp 2 (see Fig. 7.21).
• Tighten the nut of tension strap clamp 2, but not too firmly in order not to damage the tension strap.
Fig. 7.20: Rail with tension strap clamp
Fig. 7.21: Rail, mounted on one side of the pipe
• Select the installation instructions that correspond to the supplied clasp:
Band clamp clasp
• Insert the tension strap into tension strap clamp 1 (see Fig. 7.22).
• Place the tension strap around the pipe and insert it into the clasp (see Fig. 7.23).
• Tighten the tension strap.
• Tighten the screw of the clasp.
• Tighten the nut of tension strap clamp 1, but not too firmly in order not to damage the tension strap (see Fig. 7.22).
Fig. 7.22: Rail on the pipe
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FLUXUS WW Installation
screw of the clasp
screw of the clasp
metal spring
metal spring
tension strap
3
lever
sense of rotation
cut
screw of the clasp
Quick release clasp
• Insert the tension strap into tension strap clamp 1 and the metal spring (see Fig. 7.24 and Fig. 7.22).
• Place the tension strap around the pipe and insert it into the clasp.
• Place the metal spring on the opposite side of tension strap clamp 1.
• Tighten the tension strap.
• Tighten the screw of the clasp.
• Tighten the nut of tension strap clamp 1, but not too firmly in order not to damage the tension strap (see Fig. 7.22).
Fig. 7.23: Tension strap with band clamp clasp Fig. 7.24: Tension strap with quick release clasp and metal spring
Ratchet clasp
• Insert the tension strap into tension strap clamp 1 and the metal spring (see Fig. 7.22 and Fig. 7.25). It is not necessary
to mount the metal spring:
– on steel pipes or
– on pipes with an outer pipe diameter < 80 mm or
– on pipes that are not subjected to significant temperature fluctuations.
• Position the clasp, the metal spring (if necessary) and tension strap clamp 1 on the pipe. Mount the metal spring on the
opposite side of the tension strap clamp.
• Place the tension strap around the pipe and insert it into part 3 of the clasp (see Fig. 7.26).
• Tighten the tension strap.
• Cut off the protruding tension strap (see Fig. 7.26).
Attention! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges.
• Tighten the screw of the clasp.
• Tighten the nut of tension strap clamp 1, but not too firmly in order not to damage the tension strap (see Fig. 7.22).
Fig. 7.25: Tension strap with metal spring and tension strap clamp
Fig. 7.26: Ratchet clasp with tension strap
Note! To release the screw and the tension strap, press the lever down (see Fig. 7.25).
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Installation FLUXUS WW
cover
(1)
(2)
transducer
clamping
fixture
transducer distance
cover
strain relief clamp
• Repeat the steps to fix the second rail (see Fig. 7.27).
Fig. 7.27: Pipe with 2 rails
7.3.3.5 Installation of the transducers in Variofix L
• Press the transducers firmly into the transducer clamping fixtures of the covers until the transducers are tightly fixed (one
transducer in each cover). The transducer cables show in opposite directions (see Fig. 7.28).
Note! The arrows on the transducers and the cover have to point in the same direction.
Fig. 7.28: Transducers in the covers
• Adjust the transducer distance displayed by the transmitter (see section 10.5 and Fig. 7.29).
• Fix the cables of the transducers with the strain relief clamp to protect them from mechanical strain (see Fig. 7.29).
• Put coupling foil (or some coupling compound for a short-term installation) on the contact surface of the transducers. The
coupling foil can be fixed to the contact surface with a small amount of coupling compound.
Fig. 7.29: Adjusting the transducer distance
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FLUXUS WW Installation
screws of
the cover
• Put the covers with the transducers on the rail.
• Correct the transducer distance, if necessary (see section 10.5.1 and 10.5.2).
Note! Make sure that the coupling foil remains on the contact surface of the transducers.
• Tighten the screws of the cover (see Fig. 7.30).
Fig. 7.30: Transducers with Variofix L on the pipe
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7 Installation FLUXUS WW
1 x Variofix C
1 x transducer pair
1 x tension strap coil
2 x ratchet clasp
(optional)
7.3.4 Installation with Variofix C
When measuring in reflection arrangement, 1 transducer mounting fixture is mounted on the side of the pipe (see Fig.
7.31).
When measuring in diagonal arrangement, 2 transducer mounting fixtures are mounted on opposite sides of the pipe (see
Fig. 7.32).
In the following, the installation of a transducer mounting fixture is described (transducers in reflection arrangement).
Fig. 7.31: Transducer mounting fixture Variofix C (reflection arrangement)
Fig. 7.32: Transducer mounting fixture Variofix C (diagonal arrangement)
Overview of the mounting steps
• step 1
disassemble the transducer mounting fixture Variofix C
• step 2
mount the tension straps (with or without clasp) and fix the rail to the tension straps with screws
• step 3
insert the transducers into the rail and fix them
• step 4
screw the cover onto the rail
UMFLUXUS_WWV1-1EN, 2018-02-28 41
Fig. 7.33: Scope of delivery
Page 42
FLUXUS WW 7 Installation
cover
rail
spring clip
tensioning screw
spacing element
tension strap clamp
indentation
7.3.4.1 Disassembly of Variofix C
• Disassemble the transducer mounting fixture Variofix C.
In order to remove the cover from the rail, bend the outer sides of the cover outwards (see Fig. 7.34).
In order to remove the spring clip from the rail, slide it over the indentation on the rail and lift it off (see Fig. 7.35).
Fig. 7.34: Removal of the cover
Fig. 7.35: Disassembly of Variofix C
7.3.4.2 Installation of the rail
Select the installation instructions of the supplied clasp:
• see section "Installation of the rail without a clasp"
• see section "Installation of the rail with the ratchet clasp"
Installation of the rail without a clasp
• Cut the tension strap to length (pipe circumference + at least 120 mm).
Note! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges.
• Insert approx. 100 mm of the tension strap into one of the slots of the tension strap clamp and bend it (see Fig. 7.36).
• If necessary, insert the long end of the tension strap into the metal spring (see Fig. 7.37). It is not necessary to mount the
metal spring:
– on steel pipes or
– on pipes with an outer pipe diameter < 80 mm or
– on pipes that are not subjected to significant temperature fluctuations
• Place the tension strap around the pipe (see Fig. 7.38).
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7 Installation FLUXUS WW
tension strap clamp
tension strap clamp
metal spring
metal spring
s
ab
tension
strap
metal spring
s = length of the rail - 33 mm
Fig. 7.36: Tension strap with tension strap clamp
Fig. 7.37: Tension strap with metal spring and tension strap clamp
• Position the metal spring (if mounted) and the tension strap clamp (see Fig. 7.38):
– on a horizontal pipe, mount the tension strap clamp on the side of the pipe, if possible
– mount the metal spring (if mounted) on the opposite side of the tension strap clamp.
• Insert the long end of the tension strap into the second slot of the tension strap clamp (see Fig. 7.38 a).
• Tighten the tension strap and bend it.
• Bend both ends of the tension strap (see Fig. 7.38 b).
• Repeat the steps for the second tension strap. Position the tension strap at the distance s (see Fig. 7.38).
• Put the rail on the tension strap clamps.
• Use the screws to fix the rail to the tension strap clamps (see Fig. 7.39).
• Tighten the screws.
UMFLUXUS_WWV1-1EN, 2018-02-28 43
Fig. 7.38: Tension strap with metal spring and tension strap clamp on the pipe
Page 44
FLUXUS WW 7 Installation
screws
1 2
1
metal spring
tension strap clamp
metal spring
Fig. 7.39: Rail on the pipe
Installation of the rail with the ratchet clasp
• Cut the tension strap to length (pipe circumference + at least 120 mm).
Note! The edge of the tension strap is very sharp, leading to risk of injury. Debur sharp edges.
• Insert approx. 100 mm of the tension strap into part 1 and 2 of the ratchet clasp (see Fig. 7.40 a).
a b
Fig. 7.40: Ratchet clasp with tension strap
• Bend the tension strap.
• Insert the tension strap into part 1 of the ratchet clasp (see Fig. 7.40 b).
• Tighten the tension strap.
• Insert the long end of the tension strap into the tension strap clamp and the metal spring (see Fig. 7.41). It is not necessary to mount the metal spring:
– on steel pipes or
– on pipes with an outer pipe diameter < 80 mm or
– on pipes that are not subjected to significant temperature fluctuations
• Place the tension strap around the pipe (see Fig. 7.42).
Fig. 7.41: Tension strap with metal spring and tension strap clamp
• Position the metal spring (if mounted), the ratchet clasp and the tension strap clamp:
– on a horizontal pipe, mount the tension strap clamp on the side of the pipe, if possible
– mount the metal spring (if mounted) on the opposite side of the tension strap clamp.
• Insert the long end of the tension strap into part 3 of the ratchet clasp (see Fig. 7.43).
• Tighten the tension strap.
• Cut off the protruding tension strap (see Fig. 7.44).
• Tighten the screw of the ratchet clasp.
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7 Installation FLUXUS WW
tension strap clamp
metal spring
ratchet clasp
3
lever
sense of rotation
cut
screw of
the clasp
screws
• Repeat the steps for the second tension strap.
Fig. 7.42: Tension strap with metal spring, the ratchet clasp and tension strap clamp on the pipe
Fig. 7.43: Ratchet clasp with tension strap
Fig. 7.44: Ratchet clasp with tension strap
Note! To release the screw and the tension strap, press the lever down (see Fig. 7.44).
• Put the rail on the tension strap clamps (see Fig. 7.45).
• Fix the rail to the tension strap clamps with the screws.
• Tighten the screws.
Fig. 7.45: Rail on the pipe
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FLUXUS WW 7 Installation
engravings on
the transducers
hole
spacing element
transducer distance
cable tie
tensioning screw
spring clip
cover
screw
7.3.4.3 Installation of the transducers in Variofix C
• Put coupling foil (or some coupling compound for a short-term installation) on the contact surface of the transducers. The
coupling foil can be fixed to the contact surface with a small amount of coupling compound.
Note! In case coupling foil is used: if the signal is not sufficient for the measurement, use coupling com-
pound instead of coupling foil.
• Position the transducers on the rail in such way that the engravings on the transducers form an arrow. The transducer
cables show in opposite directions (see Fig. 7.46).
• Adjust the transducer distance displayed by the transmitter (see section 10.5 and Fig. 7.46).
• Slide the spring clips on the transducers (see Fig. 7.47).
• Fix the transducers by tightening the tensioning screws slightly. The end of the screw has to be placed above the hole in
the transducer (see Fig. 7.46).
• Correct the transducer distance, if necessary (see section 10.5.1 and section 10.5.2).
• Tighten the tensioning screws.
• Fix the spacing element on the rail to mark the transducer position (see Fig. 7.46).
• Use a cable tie to fix the transducer cables in order to protect them from mechanical strain (see Fig. 7.47).
• Put the cover on the rail (see Fig. 7.48).
• Tighten the screws on both sides of the cover.
Fig. 7.46: Transducers in the rail (spring clip not shown)
Fig. 7.47: Transducers in the rail
Fig. 7.48: Variofix C with transducer on the pipe
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7 Installation FLUXUS WW
lever tool
fixture
B
B
The cover can be removed from the mounted transducer mounting fixture Variofix C as follows:
• Use a lever tool to remove the cover.
• Insert the lever tool in one of the 4 openings of the cover (see Fig. 7.49).
• Press the lever tool against the fixture.
• Bend the cover outwards and release it from the anchoring.
• Repeat the steps for the other 3 openings.
• Remove the cover from the rail.
Fig. 7.49: Removal of the cover
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FLUXUS WW 7 Installation
2
1
2
1
7.3.5 Installation with transducer shoe and tension strap
• Cut the tension straps to length (pipe circumference + at least 120 mm).
• Make sure that part (2) of the clasp is on top of part (1) (see Fig. 7.50). The hooks of part (2) have to be on the outer side
of the clasp.
• Pull approx. 20 mm of the tension strap through the slot of the clasp to fix the clasp to the tension strap (see Fig. 7.51).
• Bend the end of the tension strap and insert the other end of the tension strap into the groove on the upper side of the
transducer shoe.
• Place the clasp on the side of the pipe showing towards you and put the tension strap around the pipe (see Fig. 7.52).
• Place the transducer shoe on the pipe. Hold the clasp and the transducer shoe with one hand and insert the tension
strap through parts (2) and (1) of the clasp (see Fig. 7.50).
• Tighten the tension strap and engage it in the inner hook of the clasp.
Fig. 7.50: Clasp Fig. 7.51: Clasp with tension strap
Note! On pipes with a large diameter, use tongs to tighten the tension strap, if necessary.
Note! The clasp has to be completely in contact with the pipe to ensure a good fixation.
• Fix the second transducer shoe in the same way. Adjust the displayed transducer distance by means of the measuring
tape.
• Tighten the screw of the clasp.
• Insert the transducers into the transducer shoes. Press the transducers firmly on the pipe. There should be neither a gap
nor air pockets between the transducer surface and the pipe wall. Tighten the transducer shoe screws.
Note! If the transducers are mounted on a vertical pipe and the transmitter is placed lower than the trans-
ducers, the transducer cables should be fixed to the tension strap by a cable tie to protect them from
mechanical strain.
Fig. 7.52: Mounted transducer in transducer shoe
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8 Connection FLUXUS WW
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
8 Connection
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
For the connection of the transmitter, see section 5.1.
Terminal designation
Fig. 8.1: Transmitter FLUXUS WW
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FLUXUS WW 8 Connection
SMB connector
transducers
measuring channel B
transducers
measuring channel A
8.1 Transducers
Note! If transducers are replaced or added, the sensor module also has to be replaced or added (see sec-
tion 8.5).
It is recommended to run the cables from the measuring point to the transmitter before connecting the transducers to
avoid load on the connectors.
For the connection of the transducer cable to the transmitter, see section 8.1.1.
For the connection of the extension cable to the transmitter, see section 8.1.2.
For the connection of the extension cable to the junction box, see section 8.1.3.
For the connection of the transducer cable to the junction box, see section 8.1.4.
8.1.1 Connection of the transducer cable to the transmitter
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
Attention! The degree of protection of the transmitter is ensured only if the cable glands are firmly tightened and
the housing is tightly screwed.
For the connection of the transducer cable with SMB connectors (connection system TS, direct connection), see section
8.1.1.1.
For the connection of the transducer cable with a plastic cable jacket and stripped cable ends (connection system TS,
direct connection), see section 8.1.1.2.
For the connection of the transducer cable with a stainless steel conduit and stripped cable ends (connection system TS,
direct connection), see section 8.1.1.3.
8.1.1.1 Transducer cable with SMB connectors
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the left blind plug for the connection of the transducer cable (see Fig. 8.2).
AGN
BGN
AR
BR
AVSAV
BVSBV
ARS
BRS
SB4
SA2
SB2
SA1
SB1
SA3
SB3
SA4
T4A
B-
P5a
T4B
T1B
T3B
A+
P4+
T1A
S1 T2A
S2 T2a
T2b
T1a
T1b
P3+
T3A
P1+ P2+
P6a P7a
S3
T2B
103
P5b
101
P4-
P1- P2-
P6b
P3-
T4a
T3b
T3a
S4
T4b
P7b
PE
L(+)
N(-)
Fig. 8.2: Connection of the transducer cable with SMB connectors to the transmitter
• Insert the transducer cable with the SMB connectors into the housing.
• Fix the transducer cable by tightening the cable gland.
• Connect the SMB connectors to the sockets of the transmitter (see Fig. 8.1, Fig. 8.2 and Tab. 8.1).
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8 Connection FLUXUS WW
Tab. 8.1: Terminal assignment (transducer cable)
terminal connection
X_AV SMB connector (brown cable, marked white)
X_AR SMB connector (brown cable, marked black)
8.1.1.2 Transducer cable with plastic cable jacket and stripped cable ends
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the left blind plug for the connection of the transducer cable (see Fig. 8.3).
• Open the cable gland of the transducer cable. The compression part remains in the cap nut.
• Push the transducer cable through the cap nut and the compression part.
• Prepare the transducer cable.
• Shorten the external shield and brush it back over the compression part.
• Screw the sealing ring side of the basic part tightly into the housing of the transmitter.
• Insert the transducer cable into the housing.
Attention! For good high frequency shielding, it is important to ensure good electrical contact between the exter-
nal shield and the cap nut (and thus to the housing).
• Fix the cable gland by screwing the cap nut onto the basic part.
• Connect the transducer cable to the terminals of the transmitter (see Fig. 8.1, Fig. 8.3 and Tab. 8.2).
Tab. 8.2: Terminal assignment
terminal connection
AV transducer (core)
AVS transducer (internal shield)
ARS transducer (inner shield)
AR transducer (core)
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FLUXUS WW 8 Connection
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
U L T R A S O N IC F L O W M E T E R
1 32
0
4 65
7 8
N E X T
Q
ON
Q -
Q +
M U X
D IS P
Q
OF F
9
D IS P
E N T E R
C
B R K
R E S T A R T
IN I T
external shield,
brushed back
cap nut
compression part basic part
70 mm
10 mm
20 mm
cable gland
Fig. 8.3: Connection of the transducer cable with plastic cable jacket and stripped cable ends to the transmitter
8.1.1.3 Transducer cable with stainless steel conduit and stripped cable ends
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the left blind plug for the connection of the transducer cable (see Fig. 8.4).
• Insert the transducer cable into the housing.
• Fix the transducer cable by tightening the cable gland.
• Connect the transducer cable to the terminals of the transmitter (see Fig. 8.1, Fig. 8.4 and Tab. 8.3).
Tab. 8.3: Terminal assignment (transducer cable)
terminal connection
AV transducer (brown cable, marked white)
AVS transducer (red cable)
ARS transducer (red cable)
AR transducer (brown cable)
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8 Connection FLUXUS WW
transducers
measuring channel B
transducers
measuring channel A
AGN
BGN
AR
BR
AVSAV
BVSBV
ARS
BRS
SB4
SA2
SB2
SA1
SB1
SA3
SB3
SA4
T4A
B-
T1B
T3B
T1A
T3A
S1 T2A
T2B
S2 T2a
T3b
T2b
T1a
T3a
S4
T1b
P5a
T4B
A+
P4+
P3+
P1+ P2+
S3
T4a
P6a P7a
103
P5b
101
P4-
P1- P2-
P6b
P3-
T4b
P7b
PE
L(+)
N(-)
Fig. 8.4: Connection of the transducer cable with stainless steel conduit and stripped cable ends to the transmitter
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FLUXUS WW 8 Connection
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
U L T R A S O N I C F L O W M E T E R
1 32
0
4 65
7 8
N E X T
Q
ON
Q -
Q +
M U X
D I S P
Q
OF F
9
D I S P
E N T E R
C
B R K
R E S T A R T
IN IT
70 mm
20 mm
10 mm
extension cable
cable gland
external shield,
brushed back
cap nut
compression part basic part
8.1.2 Connection of the extension cable to the transmitter
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the left blind plug for the connection of extension cable (see Fig. 8.5).
• Open the cable gland of the extension cable. The compression part remains in the cap nut.
• Push the extension cable through the cap nut and the compression part.
• Prepare the extension cable.
• Shorten the external shield and brush it back over the compression part.
• Screw the sealing ring side of the basic part tightly into the housing of the transmitter.
• Insert the extension cable into the housing.
Attention! For good high frequency shielding, it is important to ensure good electrical contact between the exter-
nal shield and the cap nut (and thus to the housing).
• Fix the cable gland by screwing the cap nut onto the basic part.
• Connect the extension cable to the terminals of the transmitter (see Fig. 8.1, Fig. 8.5 and Tab. 8.4)
Tab. 8.4: Terminal assignment
terminal connection
AV white or marked cable (core)
AVS white or marked cable (shield)
ARS brown cable (shield)
AR brown cable (core)
Fig. 8.5: Connection of the extension cable with plastic cable jacket and stripped cable ends to the transmitter
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8 Connection FLUXUS WW
100 mm
20 mm
10 mm
extension cable
extension cable transducer cable
cap nut
compression part
basic part
cable gland
external shield,
brushed back
8.1.3 Connection of the extension cable to the junction box
8.1.3.1 Connection without potential separation (standard)
The connection of the extension cable to the junction box without potential separation ensures that transducer, junction
box and transmitter are on the same potential. The extension cable should always be connected in this manner, especially
if power current cables are nearby the extension cable.
If earthing on the same potential cannot be ensured (see section 8.1.3.2).
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the left blind plug for the connection of extension cable (see Fig. 8.6).
• Open the cable gland of the extension cable. The compression part remains in the cap nut.
• Push the extension cable through the cap nut and the compression part.
• Prepare the extension cable.
• Shorten the external shield and brush it back over the compression part.
• Screw the sealing ring side of the basic part tightly into the junction box.
• Insert the extension cable into the junction box.
Attention! For good high frequency shielding, it is important to ensure good electrical contact between the exter-
nal shield and the cap nut (and thus to the junction box).
• Fix the cable gland by screwing the cap nut onto the basic part.
• Connect the extension cable to the terminals of the junction box (see Fig. 8.6 and Tab. 8.5).
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Fig. 8.6: Connection of the extension and transducer cable to the junction box JBxx
Page 56
FLUXUS WW 8 Connection
Tab. 8.5: Terminal assignment (extension cable, KL2)
terminal connection
TV white or marked cable (core)
TVS white or marked cable (internal shield)
TRS brown cable (internal shield)
TR brown cable (core)
cable gland external shield
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8 Connection FLUXUS WW
100 mm
20 mm
10 mm
extension cable
shield terminal
external
shield
cap nut
compression part
basic part
cable gland
extension cable transducer cable
8.1.3.2 Connection with potential separation
If earthing on the same potential cannot be ensured e.g., in measurement arrangements with long extension cables, the
extension cables and junction box have to be insulated from each other. The junction box and the transmitter have to be
on the same potential. By doing this, no compensation currents can flow to the transmitter via the extension cables.
Note! For the installation of the transducers on pipes with cathodic corrosion protection, see document
TIFLUXUS_GalvSep.
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the left blind plug for the connection of extension cable (see Fig. 8.7).
• Open the cable gland of the extension cable. The compression part remains in the cap nut.
• Push the extension cable through the cap nut, the compression part and the basic part.
• Insert the extension cable into the junction box.
• Prepare the extension cable.
• Cut the outer shield to length and brush it back.
• Pull the extension cable back until the brushed back external shield is below the shield terminal (see Fig. 8.7). The extension cable has to remain completely insulated up to the shield terminal.
• Screw the sealing ring side of the basic part into the junction box.
• Fix the cable gland by screwing the cap nut onto the basic part.
Attention! The external shield of the extension cable must not have electrical contact to the junction box. There-
fore, the extension cable has to remain completely insulated up to the shield terminal.
• Fix the extension cable and the external shield to the shield terminal.
• Connect the extension cable to the terminals of the transmitter (see Fig. 8.7 and Tab. 8.6).
Fig. 8.7: Connection of the extension and transducer cable to the junction box JBxx
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FLUXUS WW 8 Connection
Tab. 8.6: Terminal assignment (extension cable, KL2)
terminal connection
TV white or marked cable (core)
TVS white or marked cable (internal shield)
TRS brown cable (internal shield)
TR brown cable (core)
shield terminal external shield
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8 Connection FLUXUS WW
SMB connector
transducer cable
cable gland
junction box JB02, JB03
8.1.4 Connection of the transducer cable to the junction box
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
For the connection of the transducer cable with SMB connectors (connection system TS), see section 8.1.4.1.
For the connection of the transducer cable with a plastic cable jacket and stripped cable ends (connection system TS), see
section 8.1.4.2.
For the connection of the transducer cable with a stainless steel conduit and stripped cable ends (connection system TS),
see section 8.1.4.3.
8.1.4.1 Transducer cable with SMB connectors
• Remove the blind plug on the right side for the connection of the transducer cable (see Fig. 8.8).
• Insert the transducer cable with the SMB connectors into the junction box.
• Fix the transducer cable by tightening the cable gland.
• Connect the SMB connectors to the sockets of the junction box (see Fig. 8.8 and Tab. 8.7).
Tab. 8.7: Terminal assignment
terminal connection
XV SMB connector (brown cable, marked white)
XR SMB connector (brown cable, marked black)
Fig. 8.8: Connection of the transducer cable with SMB connectors
8.1.4.2 Transducer cable with plastic cable jacket and stripped cable ends
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the blind plug on the right side for the connection of the transducer cable (see Fig. 8.10).
• Open the cable gland of the transducer cable. The compression part remains in the cap nut (see Fig. 8.9).
• Push the transducer cable through the cap nut and the compression part. Prepare the transducer cable.
• Shorten the external shield and brush it back over the compression part.
• Screw the sealing ring side of the basic part tightly into the junction box.
• Insert the transducer cable into the junction box.
Attention! For good high frequency shielding, it is important to ensure good electrical contact between the exter-
nal shield and the cap nut (and thus to the junction box).
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FLUXUS WW 8 Connection
cap nut
compression part basic part
100 mm
20 mm
10 mm
external shield,
brushed back
T V
T V S
T G
T G
T R S
T R
V
V S
R S
R
K L 2 K L 1
• Fix the cable gland by screwing the cap nut onto the basic part.
• Connect the transducer cable to the terminals of the junction box (see Fig. 8.11 and Tab. 8.8).
Tab. 8.8: Terminal assignment (KL1)
terminal (JBxx) connection
V transducer (core)
VS transducer (shield)
RS transducer (shield)
R transducer (core)
Fig. 8.9: Cable gland
Fig. 8.10: Connection of the transducer cable with plastic cable jacket and stripped cable ends
Fig. 8.11: Terminal designation (junction box JBxx)
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8 Connection FLUXUS WW
cable gland
junction box JB01
8.1.4.3 Transducer cable with stainless steel conduit and stripped cable ends
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
• Remove the right blind plug for the connection of the transducer cable (see Fig. 8.12).
• Insert the transducer cable into the junction box.
• Fix the transducer cable by tightening the cable gland.
• Connect the transducer cable to the terminals of the junction box (see Fig. 8.11, Fig. 8.12 and Tab. 8.9).
Tab. 8.9: Terminal assignment (KL1)
terminal (JB01) connection
V transducer (white cable, marked white)
VS transducer (red cable)
RS transducer (red cable)
R transducer (white cable)
Fig. 8.12: Connection of the transducer cable with stainless steel conduit and stripped cable ends
VSRRS
V
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FLUXUS WW 8 Connection
cable gland
cap nut
compression part basic part
power supply
equipotential bonding terminal
(FLUXUS F704**-A2)
8.2 Power supply
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
The external protective earth is connected to the equipotential bonding terminal on the housing of the transmitter FLUXUS
F704**-A2 (see Fig. 8.13). It must always be connected.
Attention! According to IEC 61010-1:2010, a switch has to be provided near the measuring instrument in the
building installation, easily accessible for the user and marked as a disconnection device for the measuring instrument.
If the transmitter FLUXUS F704**-A2 is used in an explosive atmosphere, the switch should be installed outside the explosive atmosphere. If this is not possible, the switch should be installed in the
least hazardous area.
Attention! The degree of protection of the transmitter will only be guaranteed if the power cable fits firmly and
tightly in the cable gland.
For the connection of the power cable to the transmitter, see box "Cable connection", Fig. 8.13 and Tab. 8.10.
Cable connection
• Remove the blind plug from the transmitter to connect the cable (if present).
• Prepare the cable with an M20 cable gland. The used cable has to have a wire cross-section of 0.5…1.5 mm².
• Push the cable through the cap nut, compression part and basic part of the cable gland.
• Insert the cable into the housing of the transmitter.
• Screw the sealing ring side of the basic part tightly into the housing of the transmitter.
• Fix the cable gland by screwing the cap nut onto the basic part.
• Connect the cable to the terminals of the transmitter.
AGN
BGN
AR
BR
BVSBV
AVSAV
ARS
BRS
SB4
SA2
SB2
SA1
SB1
SA3
SB3
SA4
T4A
B-
T1B
T1A
T3A
S1 T2A
T2B
S2 T2a
T3b
T2b
T3a
T1a
T1b
P5a
T3B
T4B
A+
P4+
P3+
P1+ P2+
S3
S4
P6a P7a
103
P5b
101
P4-
P1- P2-
P6b
P3-
T4a
T4b
P7b
PE
L(+)
N(-)
Fig. 8.13: Transmitter FLUXUS WW
Tab. 8.10: Terminal assignment
terminal connection AC connection DC
PE earth earth
N(-) neutral -DC
L(+) phase 100...230 V AC, 50...60 Hz +DC
fuse 1 A, time-lag 1.6 A, time-lag
For the voltage, see Technical specification.
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8 Connection FLUXUS WW
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
cable gland
cap nut
compression part basic part
outputs
+
-
mA
+
-
mA
U
ext
-
+
R
c
U
ext
V
+
-
+
-
8.3 Outputs
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
Attention! The outputs can only be connected to a low voltage circuit (max. 30 V AC or 42 V DC against earth).
For the connection of the output cable to the transmitter, see box "Cable connection" p. 62,
Fig. 8.14: Transmitter FLUXUS WW
Tab. 8.11: Konfiguration der Ausgänge
output transmitter external circuit remark
internal circuit connection
switchable current
1
loop
All switchable current outputs are
switched to active or
passive mode at the
same time.
binary output
(optorelay)
Px+
Px-
Px+
Px-
Pxa
active current loop:
R
< 350 Ω
ext
passive current loop:
U
8...30 V
ext =
> 0.021 A
U
ext
.
R
ext
example:
= 12 V
U
ext
R
= 0...190 Ω
ext
U
≤ 26 V
ext
≤ 100 mA
I
c
Fig. 8.14 and Tab. 8.11
[Ω] + 8 V
.
Pxb
RS485
A+
120 Ω
termination resistor
B-
shield 101
The number, type and connections of the outputs are customized.
R
is the sum of all ohmic resistances in the circuit (e.g. resistance of the conductors, resistance of the ampere-
ext
meter/voltmeter).
1
For the setting of the switching condition, see section 16.1.
UMFLUXUS_WWV1-1EN, 2018-02-28 63
Page 64
FLUXUS WW 8 Connection
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
cable gland
cap nut
compression part basic part
serial interface
RS485 (optional)
serial interface
RS232
8.4 Serial interface
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
8.4.1 RS232 interface
The RS232 interface is located on the front plate of the transmitter (see Fig. 8.15).
• Connect the RS232 cable to the transmitter and the serial interface of the PC. If the RS232 cable cannot be connected to
the PC, use the RS232/USB adapter.
The RS232 cable and the RS232/USB adapter are part of the serial data kit (optional).
Note! If a problem occurs when using the RS232/USB adapter for connection, contact your system admin-
istrator.
Fig. 8.15: Transmitter FLUXUS WW
8.4.2 RS485 interface
The transmitter can also be equipped with an RS485 interface (optional).
For the connection of the RS485 cable to the transmitter, see box "Cable connection" p. 62, Fig. 8.1 and Tab. 8.11)
For further information on the data transmission, see chapter 13.
.
64 UMFLUXUS_WWV1-1EN, 2018-02-28
Page 65
8 Connection FLUXUS WW
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
separate
sensor module
AVSAV
AGN
ARS
AR
BVSBV
BGN
BRS
BR
SA1
SA2
SA3
SA4
SB1
SB2
SB3
SB4
T1a
T1b
S2 T2a
T3a
T3b
S4
T4a
T2b
T4b
T1A
T1B
S1 T2A
T3A
T3B
S3
T4A
T2B
T4B
A+
B-
P1+ P2+
P4+
P5a
P6a P7a
P3+
101
103
P1- P2-
P4-
P5b
P6b
P7b
P3-
PE
N(-)
L(+)
sensor module
measuring channel A
sensor module
measuring channel B
8.5 Sensor module (SENSPROM)
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
The sensor module contains important transducer data for the operation of the transmitter with the transducers.
With transducers of the connection system TS, the sensor module is supplied separately. The transducer module is already connected to the terminals of the transmitter when delivered (see Fig. 8.16).
Fig. 8.16: Transmitter FLUXUS WW
(connection system TS)
If transducers are replaced or added, the sensor module has to be replaced or added, too.
Note! The serial numbers of the sensor module and the transducer have to be identical. A wrong or incor-
rectly connected sensor module will result in incorrect measured values or in measurement failure.
• Disconnect the transmitter from the power supply.
• Insert the sensor module into the lower row of terminal strip (see Fig. 8.1 and Fig. 8.17). The slots SA1...SA4 are assigned to the transducers of measuring channel A, the slots SB1...SB4 are assigned to the transducers of measuring
channel B.
• Connect the transmitter to the power supply.
• Enter all parameters of the program branch Parameter.
• Press ENTER until the main menu is displayed again.
UMFLUXUS_WWV1-1EN, 2018-02-28 65
Fig. 8.17: Transmitter FLUXUS WW
Page 66
FLUXUS WW 8 Connection
SD card
8.6 SD card (optional)
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
Additionally, the transmitter can be equipped with an SD card (see Fig. 8.18). Measured values can be stored on the SD
card for a longer period of time.
Prior to this, the serial data transmission has to be parametrized. For the parametrization and activation of the serial data
transmission, see section 13.2.
When the housing is opened, the SD card can be extracted and the measured values can be read out by a PC.
Fig. 8.18: Transmitter FLUXUS WW
66 UMFLUXUS_WWV1-1EN, 2018-02-28
Page 67
9 Start-up of the transmitter FLUXUS WW
Select language |
English
Engineer. units
>METRIC< imperial
CANADA-REGION ?
>NO< yes
TIME 11:00
ok >NEW<
TIME 11:00
Set Time !
4
6
8
2
TIME 11:11
>OK< new
DATE 2011-01-25
ok >NEW<
DATE 2011-01-25
Set Date !
4
6
8
2
DATE 2016-01-26
>OK< new
FLEXIM FLUXUS
FLUXUS WW -XXXXXXXX
>PAR<mea opt sf
Parameter
9 Start-up of the transmitter
9.1 Start-up settings
When starting up the transmitter for the first time, the following settings are required:
• language
• units of measurement
• time/date
These displays will only be indicated once when the transmitter is switched on for the first time.
The available languages of the transmitter are displayed in the relevant language. Select a
language. Press ENTER.
The menus are displayed in the selected language.
Select the units of measurement to be used. Press ENTER.
Select whether the transmitter is used in the region of Canada or not. Press ENTER.
This display will only be indicated if IMPERIAL has been selected.
9.2 Switching on
The current time is displayed. Select ok to confirm the time or new to set it. Press ENTER.
Select the character to be edited with key and .
Edit the selected character with key and .
Press ENTER.
The new time is displayed. Select ok to confirm the time or new to reset it. Press ENTER.
The current date is displayed. Select ok to confirm the date or new to set it. Press ENTER.
Select the character to be edited with key and .
Edit the selected character with key and . Press ENTER.
The new date is displayed. Select ok to confirm the date or new to reset it. Press ENTER.
As soon as the transmitter is connected to the power supply, it is displayed which transducer has been detected at which channel.
Afterwards, the serial number of the transmitter is displayed for a short time.
It is not possible to enter any data while the serial number is displayed.
UMFLUXUS_WWV1-1EN, 2018-02-28 67
After switching on the transmitter, the main menu is displayed in the default language. The
language can be changed (see section 9.6).
Page 68
FLUXUS WW 9 Start-up of the transmitter
INITIALISATION
----DONE----
FACTORY DEFAULT?
no >YES<
Delete Meas.Val.
no >YES<
>PAR< mea opt sf
Parameter
4
6
9.3 Initialization
During an initialization (INIT) of the transmitter, the settings in the program branches Parameter and Output Options
and some of the settings in the program branch Special Funct. are reset to the default settings of the manufacturer.
For INIT-resistant settings, see annex A.
Proceed as follows to execute an initialization:
• When switching on the transmitter: keep keys BRK and C pressed.
• During the operation of the transmitter: press keys BRK, C and ENTER at the same time. A reset is executed. Release
only key ENTER. Keep keys BRK and C pressed.
After the initialization has been executed, the message INITIALISATION DONE is displayed.
After the initialization, the remaining settings of the transmitter can be reset to the default settings and/or the stored measured values can be deleted.
Select yes to reset the remaining settings to default settings or no to keep them at the current settings.
Press ENTER.
If yes is selected, the message FACTORY DEFAULT DONE will be displayed.
Select yes to delete the stored measured values or no to keep them. Press ENTER.
This display will only be indicated if measured values are stored in the transmitter.
9.4 Display
9.4.1 Main menu
The main menu contains the following program branches:
• par (parameters)
• mea (measuring)
• opt (output options)
• sf (special functions)
The selected program branch is displayed in angle brackets and capital letters. The complete designation of the selected
program branch is displayed in the lower line.
Select a program branch with key and . Press ENTER.
Note! By pressing key BRK, the measurement is stopped and the main menu is selected.
Note! In this user manual, all program entries are displayed in typewriter font (Parameter). The menu
items are separated from the main menu by a backslash "\".
9.4.2 Program branches
• program branch Parameter
input of the pipe and fluid parameters
• program branch Measuring
execution of measurement steps
• program branch Output Options
setting of the physical quantity, the unit of measurement and the parameters for the transmission of measured value
• program branch Special Funct.
contains all functions that are not directly related to the measurement
68 UMFLUXUS_WWV1-1EN, 2018-02-28
Page 69
9 Start-up of the transmitter FLUXUS WW
Parameter
>PAR<
↓
selection of the
measuring channel
↓
pipe parameter
↓
transducer type
↓
extension
cable
Measuring
>MEA<
↓
selection of the
measuring channel
↓
measuring
point number
↓
sound path
↓
transducer
positioning
↓
measurement
↓
consistency check
Output Options
>OPT<
↓
selection of the
measuring channel
↓
physical quantity
↓
unit of measurement
↓
damping
↓
measured value
output
Special Funct.
>SF<
↓
system settings1
↓
instrument
information
↓
print measured
values
↓
delete measured
values
↓
program code
For an overview of the program branches, see figure below. For a detailed overview of the menu structure, see annex A.
¹ SYSTEM settings contains the following menu items:
• set clock
• libraries
• dialogs and menus
• measurement
• outputs
•storing
• signal snap
•network
• serial transmission
• miscellaneous
UMFLUXUS_WWV1-1EN, 2018-02-28 69
Page 70
FLUXUS WW 9 Start-up of the transmitter
Parameter ↕
for Channel A:
8
2
Lining
no >YES<
4
6
R1=FUNC<typ mode
Function: MAX
4
6
8
2
9.4.3 Navigation
If a vertical arrow (↕) is displayed, the menu item contains a scroll list. The current list item is displayed in the lower line.
Press key and to scroll and select a list item in the lower line. Press ENTER.
Some menu items contain a horizontal scroll list in the lower line. The selected list item is displayed in capital letters and
in angle brackets.
Press key and to scroll and select a list item in the lower line. Press ENTER.
Some menu items contain a horizontal scroll list in the upper line. The selected list item is displayed in capital letters and
in angle brackets. The current value of the list item is displayed in the lower line.
Press key and to scroll and select a list item in the upper line.
Press key and to scroll through the lower line and select a value for the selected
list item.
Press ENTER.
9.5 HotCodes
A HotCode is a key sequence that activates certain functions and settings:
function HotCode see section deactivation
language selection 9090xx 9.6
enabling the FastFood mode 007022 12.8.1 HotCode 007022
manual input of the lower limit for the inner pipe diameter 071001 12.10
activation of the SuperUser mode 071049 15.1 HotCode 071049
reset the display contrast to medium 555000 14.4
A HotCode can be entered in the main menu after pressing key C. The HotCode is not displayed during the input.
70 UMFLUXUS_WWV1-1EN, 2018-02-28
Page 71
9 Start-up of the transmitter FLUXUS WW
FLEXIM FLUXUS
FLUXUS WW -XXXXXXXX
9.6 Language selection
The transmitter can be operated in the languages listed below. The language can be selected with the following HotCodes:
Tab. 9.1: Language HotCodes
909031 Dutch
909033 French
909034 Spanish
909044 English
909049 German
Depending on the technical data of the transmitter, some of the languages might not be implemented.
When the last digit has been entered, the main menu is displayed in the selected language.
The selected language remains activated when the transmitter is switched off and on again. After an initialization of the
transmitter, the language is reset to the default language.
9.7 Interruption of the power supply
As soon as the measurement begins, all current measuring parameters will be stored in a non-volatile INIT-resistant
EPROM. In case of a power supply failure, the measurement will be stopped. All input data remain stored.
After the power supply has returned, the serial number is displayed for a few seconds.
The interrupted measurement is continued. All selected output options are still active. If an initialization was carried out,
the measurement will not be continued after restoring the power supply.
UMFLUXUS_WWV1-1EN, 2018-02-28 71
Page 72
FLUXUS WW 10 Basic measurement
>PAR<mea opt sf
Parameter
Parameter ↕
for Channel A:
Outer Diameter
100.0 mm
Outer Diameter
1100.0 MAXIMAL
Wall Thickness
3.0 mm
10 Basic measurement
Attention! Observe the "Safety instructions for the use in explosive atmospheres" (see SIFLUXUS document).
The pipe and fluid parameters are entered for the selected measuring point (see chapter 6). The parameter ranges are
limited by the technical characteristics of the transducers and the transmitter.
Note! During the parameter input, the transducers have to be connected to the transmitter.
Note! The parameters will only be stored when the program branch Parameter has been edited in its en-
tirety.
10.1 Input of pipe parameters
Select the program branch Parameter. Press ENTER.
Select the channel for which the parameters are to be entered.
Press ENTER.
10.1.1 Outer pipe diameter/pipe circumference
Enter the outer pipe diameter. Press ENTER.
An error message will be displayed if the entered parameter is outside the range. The limit
is displayed.
example: upper limit 1100 mm for the connected transducers
It is possible to enter the pipe circumference instead of the outer pipe diameter (see section 14.2.1).
If the input of the pipe circumference is activated and 0 (zero) is entered in Outer Diameter, the menu item Pipe Cir-
cumfer. will be displayed. If the pipe circumference is not to be entered, press key BRK to return to the main menu and
start the parameter input again.
10.1.2 Pipe wall thickness
Enter the pipe wall thickness. Press ENTER.
Note! The inner pipe diameter (= outer pipe diameter - 2 x pipe wall thickness) will be calculated internally.
If the value is not within the inner pipe diameter range of the connected transducers, an error message will be displayed.
It is possible to change the lower limit of the inner pipe diameter for a given transducer type (see
section 12.10).
72 UMFLUXUS_WWV1-1EN, 2018-02-28
Page 73
10 Basic measurement FLUXUS WW
Pipe Material ↕
Carbon Steel
c-Material
3230.0 m/s
Lining
no >YES<
Lining ↕
Bitumen
c-Material
3200.0 m/s
Liner Thickness
3.0 mm
Roughness
0.4 mm
10.1.3 Pipe material
The pipe material has to be selected to be able to determine the sound speed. The sound speeds for the materials in the
scroll list are stored in the transmitter.
Select the pipe material.
If the material is not in the scroll list, select
Other Material. Press ENTER.
When the material has been selected, the corresponding sound speed is set automatically. If Other Material is selected, the sound speed has to be entered.
Enter the sound speed of the pipe material. Press ENTER.
Note! A distinction is made between the longitudinal and transversal sound speed. Enter the sound speed
of the pipe material, which is nearer to 2 500 m/s.
For the sound speed of some materials, see annex C.1.
10.1.4 Pipe lining
If the pipe has an inner lining, select yes. Press ENTER.
If no is selected, the next parameter will be displayed (see section 10.1.5).
Select the lining material.
If the material is not in the scroll list, select Other Material. Press ENTER.
If Other Material is selected, the sound speed has to be entered.
Enter the sound speed of the lining material. Press ENTER.
For the sound speed of some materials, see annex C.1.
Enter the thickness of the liner. Press ENTER.
Note! The inner pipe diameter (= outer pipe diameter - 2 x pipe wall thickness - 2 x liner thickness) will be
calculated internally. If the value is not within the inner pipe diameter range of the connected transducer, an error message will be displayed.
It is possible to change the lower limit of the inner pipe diameter for a given transducer type (see section 12.10).
10.1.5 Pipe roughness
The flow profile of the fluid is influenced by the roughness of the inner pipe wall. The roughness is used for the calculation
of the profile correction factor. In most cases, the pipe roughness cannot be determined exactly and must therefore be estimated.
For the roughness of some materials, see annex C.2.
UMFLUXUS_WWV1-1EN, 2018-02-28 73
Enter the roughness for the selected pipe or lining material.
Change the value according to the condition of the inner pipe wall.
Page 74
FLUXUS WW 10 Basic measurement
Transducer Type↕
Standard
Transd. Data 1
35.99
Additional cable
65.0 m
par>MEA<opt sf
Measuring
par>MEA<opt sf
NO DATA!
CHANN:
MEASUR
>A< B Y Z
- .
4
6
8
A:Meas.Point No.:
xxx (↑↓← →)
10.2 Other parameters
10.2.1 Transducer parameters
If transducers are identified at a measuring channel, the input of parameters is finished. Press ENTER. The main menu
will be displayed.
If no or special transducers are connected, the transducer parameters have to be entered.
Select Standard to use the standard transducer parameters stored in the transmitter.
Select Special Version to enter the transducer parameters. The transducer parameters
have to be provided by the manufacturer.
Press ENTER.
Note! If standard transducer parameters are selected in the list item Special Version, FLEXIM cannot
guarantee for the precision of the measured values. A measurement might be even impossible.
If Special Version is selected, enter the 6 transducer parameters specified by the manufacturer. Press ENTER after each input.
10.2.2 Extension cable
If the transducer cable is extended, enter the additional cable length (e.g., between the
junction box and the transmitter). Press ENTER.
10.3 Selection of the channels
The channels on which the measurement is conducted can be activated individually.
Select the program branch Measuring. Press ENTER.
If this error message is displayed, the parameters are not complete. Enter the missing parameters in the program branch Parameter.
The channels for the measurement can be activated and deactivated.
: the channel is active
–: the channel is inactive
•: the channel cannot be activated
This display will not be indicated if the transmitter has only one measuring channel.
Note! A channel cannot be activated if the parameters are not valid, e.g., if the parameters in the program
branch Parameter of the channel are not complete.
• Select a channel with the key and .
• Press key to activate or deactivate the selected channel. Press ENTER.
A deactivated channel will be ignored during the measurement. The parameters entered for this channel will remain unchanged.
If the data logger or the serial interface is activated, the measuring point number has to be entered.
74 UMFLUXUS_WWV1-1EN, 2018-02-28
Enter the measuring point number. Press ENTER.
If arrows are displayed in the lower line on the right, ASCII text can be entered. If no arrows
are displayed, only digits, point and hyphen can be entered.
Page 75
10 Basic measurement FLUXUS WW
A:
2NUM
A: Sound Path
2 NUM
Transd. Distance
A:53.9 mm Reflec
Transd. Distance
A: 53.9 mm !
S=■ ■ ■ ■ ■ ■
A:■ < >■ =53.9 mm!
S=■ ■ ■ ■ ■ ■
Q=■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
time= 94.0 μs
Q=■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
Transd. Distance?
54 mm
10.4 Input of the sound path number
A value for the number of sound paths corresponding to the connected transducers and the
entered parameters is recommended. Change the value, if necessary. Press ENTER.
For the definition of the sound paths, see section 4.3.
10.5 Transducer distance
A value for the transducer distance is recommended. Fix the transducers (see chapter 7.3).
Adjust the transducer distance.
Press ENTER.
A - measuring channel
Reflec - reflection arrangement
Diagon - diagonal arrangement
The transducer distance is the distance between the inner edges of the transducers (see section 4.3 and Fig. 7.5).
In case of a measurement in diagonal mode on very small pipes, a negative transducer distance is possible.
Note! The accuracy of the recommended transducer distance depends on the accuracy of the entered pipe
and fluid parameters.
10.5.1 Fine adjustment of the transducer distance
If the displayed transducer distance is adjusted, press ENTER.
The measuring run for the positioning of the transducers is started.
• Shift one transducer slightly within the recommended transducer distance range until the
bar graph reaches the max. length (max. 6 squares).
The following quantities can be displayed in the upper line by pressing key and in the
lower line by pressing key :
• ■ <>■ =: transducer distance
• time: transit time of the measuring signal in μs
• S=: signal amplitude
• Q=: signal quality, bar graph has to have max. length
If the signal is not sufficient for a measurement, Q= UNDEF will be displayed.
In case of large deviations, check if the entered parameters are correct or repeat the measurement at a different point on
the pipe.
After the precise transducer positioning, the recommended transducer distance is displayed again.
Enter the current (exact) transducer distance. Press ENTER.
Repeat the steps for all channels on which a measurement is made. The measurement will be started automatically.
UMFLUXUS_WWV1-1EN, 2018-02-28 75
Page 76
FLUXUS WW 10 Basic measurement
L=(50.0) 54.0 mm
54.5 m3/h
Transd. Distance?
50.0 mm
L=(51.1) 50.0 mm
54.5 m3/h
10.5.2 Consistency check
If a wide range for the sound speed has been entered in the program branch Parameter or the exact parameters of the
fluid are unknown, a consistency check is recommended.
The transducer distance can be displayed during the measurement by scrolling the key .
The optimum transducer distance is displayed in brackets (here: 50.0 mm) in the upper
line, followed by the entered transducer distance (here: 54.0 mm). The latter value has to
correspond to the adjusted transducer distance. Press ENTER to optimize the transducer
distance.
The optimum transducer distance is calculated on the basis of the measured sound speed. It is therefore a better approximation than the first recommended value which had been calculated on the basis of the sound speed range entered in the
program branch Parameter.
If the difference between the optimum and entered transducer distance is less than specified in Tab. 10.1, the measurement is consistent and the measured values are valid. The measurement can be continued.
If the difference is greater, adjust the transducer distance to the displayed optimum value. Afterwards, check the signal
quality and the signal amplitude bar graph (see section 10.5.1). Press ENTER.
Tab. 10.1: Standard values for signal optimization
transducer frequency
(3rd character of the
technical type)
difference between the optimum and the entered transducer distance [mm]
shear wave transducer Lamb wave transducer
F - -60…+120
G 20 -45…+90
H - -30…+60
K 15 -20…+40
M 10 -10…+20
P8 -5…+10
Q 6 -3…+5
S3 -
Enter the new adjusted transducer distance. Press ENTER.
Scroll with key until the transducer distance is displayed and check the difference between optimum and entered transducer distance. Repeat the steps, if necessary.
Note!
Repeat the steps for all channels on which a measurement is made.
10.5.3 Value of the sound speed
The sound speed of the fluid can be displayed during the measurement by pressing key .
If an approximate range for the sound speed has been entered in the program branch Parameter and the transducer distance has been optimized afterwards as described in section 10.5.2, it is recommended to write down the sound speed for
the next measurement. By doing this, it will not be necessary to repeat the fine adjustment.
Write down the fluid temperature as the sound speed depends on it. The value can be entered in the program branch Pa-
rameter.
76 UMFLUXUS_WWV1-1EN, 2018-02-28
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10 Basic measurement FLUXUS WW
A:Volume flow
31.82 m3/h
10.6 Start of measurement
The measured values are displayed in the lower line. Press ENTER to return to the fine adjustment of the transducer distance (see section 10.5.1).
If more than one measuring channel is available/activated, the transmitter works with an integrated multiplexer providing
simultaneous measurement on the different measuring channels.
The flow rate is measured on one measuring channel for approx. 1 s, then the multiplexer switches to the next activated
channel.
The time necessary for the measurement depends on the measuring conditions. E.g., if the measuring signal cannot be
detected immediately, the measurement duration might be > 1 s.
The outputs and the serial interface continuously receive the measured values of the corresponding channel. The results
are displayed according to the currently selected output options. The default unit of measurement of the volumetric flow
rate is m³/h. For the selection of the values to be displayed and the setting of the output options, see chapter 11. For further measuring functions, see chapter 12.
10.7 Detection of the flow direction
The flow direction in the pipe can be detected with the help of the displayed volumetric flow rate sign in conjunction with
the arrow on the transducers:
• The fluid flows in the direction of the arrow if the displayed volumetric flow rate is positive (e.g., 54.5 m³/h).
• The fluid flows against the arrow direction if the displayed volumetric flow rate is negative (e.g., -54.5 m³/h).
10.8 Stop of measurement
The measurement is interrupted by pressing key BRK if it is not protected by a program code (see section 12.12).
Note! Be careful not to stop a current measurement by inadvertently pressing key BRK!
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FLUXUS WW 11 Displaying measured values
par mea >OPT< sf
Output Options
Output Options ↕
for Channel A:
Physic. Quant. ↕
Volume flow
Volume in: ↕
m3/h
A:Volume flow
54.5 m3/h
B:Flow Velocity
1.25 m/s
11 Displaying measured values
The physical quantity is set in the program branch Output Options (see section 11.1).
During the measurement, the designation of the physical quantity is displayed in the upper line, the measured value in the
lower line. The display can be adapted (see section 11.3).
11.1 Selection of the physical quantity and the unit of measurement
The following physical quantities can be measured:
• sound speed
• flow velocity: is calculated from the measured transit time difference
• volumetric flow rate: is calculated by multiplying the flow velocity by the cross-sectional pipe area
• mass flow rate: is calculated by multiplying the volumetric flow rate by the operating density of the fluid
The physical quantity is selected as follows:
Select the program branch Output Options. Press ENTER.
Select the channel for which the physical quantity is to be entered.
Press ENTER.
This display will not be indicated if the transmitter has only one measuring channel.
Select the physical quantity in the scroll list. Press ENTER.
For the selected physical quantity (except for the sound speed), a scroll list with the available units of measurement is displayed. The unit of measurement which was selected previously is displayed first.
Select the unit of measurement of the selected physical quantity. Press ENTER.
Press key BRK to return to the main menu. The further displays of the program branch Output Options are used for the
activation of the measured value transmission.
Note! If the physical quantity or the unit of measurement is changed, the settings of the outputs will have to
be checked (see chapter 16).
11.2 Toggling between the channels
If more than one measuring channel is available/activated, the display of the measured values can be adjusted during the
measurement as follows:
• AutoMux mode
– all channels
– only calculation channels
• HumanMux mode
The key toggles between the modes.
11.2.1 AutoMux mode
In the AutoMux mode, the display and the measuring process are synchronized. The channel on which a measurement is
being made is displayed in the upper line on the left.
The measured values are displayed as configured in the program branch Output Options (see section 11.1). When the
multiplexer switches to the next channel, the display is updated.
The default is the AutoMux mode. The AutoMux mode will be activated after an initialization of the transmitter.
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11 Displaying measured values FLUXUS WW
B:Flow Velocity
1.25 m/s
A:Flow Velocity
* 2.47 m/s
All channels
The measured values of all channels (measuring and calculation channels) are displayed. The next active channel is selected after min. 1.5 s.
Only calculation channels
Only the measured values of the calculation channels are displayed. The next active calculation channel is displayed after
min. 1.5 s.
This mode can only be activated if at least 2 calculation channels are active.
11.2.2 HumanMux mode
In the HumanMux mode, the measured values of one channel are displayed. The measurement on the other channels is
continued, but not displayed.
The selected channel is displayed left in the upper line.
Press key to display the next activated channel. The measured values of the selected channel will be displayed as
configured in the program branch Output Options (see section 11.1).
11.3 Adjustment of the display
During the measurement, the display can be adapted in order to display 2 measured values at the same time (one in each
line of the display). This does not affect totalizing, storing of measured values, transmission of measured values, etc.
The following information can be displayed in the upper line:
display explanation
Thermal energy= designation of the physical quantity
A: +18.8 kWh values of the totalizers, if activated
Tx= temperatures assigned to the channel and their difference if the temperature is measured
full= date and time at which the data logger will be full, if activated
Mode= measuring mode
L= transducer distance
Rx= alarm state indication if it is activated (see section 16.6.5) and if alarm outputs are activated (see
section 16.5).
δc= difference between the measured sound speed and the sound speed of a selected reference flu-
id, if activated (see section 14.3)
status line (see section 11.4)
The measured values of the physical quantity selected in the program branch Output Options can be displayed in the
lower line:
display explanation
12.3 m/s flow velocity
1423 m/s sound speed
124 kg/h mass flow rate
15 m3/h volumetric flow rate
Press key during the measurement to change the display in the upper line, press key to change the display in
the lower line.
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The character * indicates that the displayed value (here: flow velocity) is not the selected
physical quantity.
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FLUXUS WW 11 Displaying measured values
A: S3 Q9 c RT F↓
11.4 Status line
Important information of the running measurement are summarized in the status line. Quality and precision of the running
measurement can be evaluated.
Press key during the measurement to scroll through the upper line to the status line.
value explanation
S signal amplitude
0
…
9
Q signal quality
0
…
9
c sound speed
< 5 %
…
≥ 90 %
values ≥ 3 are sufficient for the measurement
< 5 %
…
≥ 90 %
comparison of the measured and the expected sound speed of the fluid
The expected sound speed is calculated on the basis of the fluid parameters (fluid selected in the program branch Parameter, temperature dependence, pressure dependence).
√ ok, is equal to the expected value
↑ > 20 % of the expected value
↓ < 20 % of the expected value
? unknown, cannot be measured
R flow profile
information about the flow profile based on the Reynolds number
T fully turbulent flow profile
L fully laminar flow profile
↕ transition range between laminar and turbulent flow
? unknown, cannot be calculated
F flow velocity
comparison of the measured flow velocity with the flow limits of the system
√ ok, the flow velocity is not within the critical range
↑ the flow velocity is higher than the current limit
↓ the flow velocity is lower than the current cut-off flow (even if it is not set to zero)
0 the flow velocity is in the limit range of the measuring method
? unknown, cannot be measured
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11 Displaying measured values FLUXUS WW
L=(51.2) 50.8 mm
54.5 m3/h
11.5 Transducer distance
By pressing key during the measurement, it is possible to scroll to the display of the
transducer distance.
The optimum transducer distance (here: 51.2 mm) will be displayed in parentheses in the upper line, followed by the entered transducer distance (here: 50.8 mm).
The optimum transducer distance might change during the measurement (e.g., due to temperature fluctuations).
A deviation from the optimum transducer distance (here: -0.4 mm) will be compensated internally.
Note! Never change the transducer distance during the measurement!
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FLUXUS WW 12 Advanced measuring functions
Damping
10 s
A:Volume flow
54.5 m3/h
8
A: 32.5 m3
54.5 m3/h
8
2
6
4
8
A:NO COUNTING !
3.5 m/s
12 Advanced measuring functions
12.1 Damping factor
Each displayed measured value is a floating average of all measured values of the last x seconds, with x being the damping factor. A damping factor of 1 s means that the measured values are not averaged because the measuring rate is approx 1/s. The default value of 10 s is appropriate for normal flow conditions. Values which fluctuate strongly due to a higher flow dynamic, require a higher damping factor. Select the program branch Output Options. Press ENTER until the
menu item Damping is displayed.
Enter the damping factor. Press ENTER.
Press key BRK to return to the main menu.
12.2 Totalizer
The total volume or total mass of the fluid at the measuring point can be determined.
There are 2 flow totalizers, one for the positive and the other for the negative flow direction. The unit of measurement used
for totalization corresponds to the volume or mass unit selected for the physical quantity.
The totalizer values can be displayed with up to 11 places, e.g., 74890046.03. For the adjustment of the number of decimal places (max. 4 places), see section 15.7.
To activate the totalizers, press key during the measurement (see Tab. 12.1).
The totalizer value will be displayed in the upper line (here: the volume which has passed the
measuring point in positive flow direction since the activation of the totalizers).
Tab. 12.1: Keys to display the totalizers
activation press key during the measurement
deactivation press key 3 times during measurement
display of the flow totalizer for the positive flow direction press key during the measurement
display of the flow totalizer for the negative flow direction press key during the measurement
toggling of totalizer display between positive and negative
flow direction
Select Special Funct.\SYSTEM settings\Stor-
ing\Toggle totalizer.
Enter a time interval between 0 (off) and 5 s.
reset of the totalizers to zero press key 3 times during measurement
This error message will be displayed if the totalizers of a measuring channel where the flow
velocity is measured are to be activated. The flow velocity cannot be totalized.
Note! The flow totalizers can only be activated for the measuring channel whose measured values are cur-
rently displayed.
Note! A keystroke will only influence the flow totalizers if the flow totalizer is displayed in the upper line.
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12 Advanced measuring functions FLUXUS WW
Quantity Storage
one >BOTH<
Quantity recall
off >ON<
Quant. wrapping
off >ON<
Enable NoiseTrek
off >ON<
NT parallel beam
off >ON<
Selection of the flow totalizers for storing
It is possible to only store the value of the flow totalizer that is currently displayed or one value for each flow direction. Select Special Funct.\SYSTEM settings\Storing\Quantity Storage.
If one is selected, only the value of the totalizer currently displayed will be stored. This can
apply for the positive and negative totalizer.
If both is selected, the values of the totalizers for both flow directions will be stored.
Press ENTER.
When the measurement is stopped
The behavior of the totalizers when the measurement is stopped or after a reset of the transmitter is set in Special
Funct.\SYSTEM settings\Measuring\Quantity recall.
If on is selected, the values of the flow totalizers will be stored and used for the next measurement.
If off is selected, the flow totalizers will be reset to zero.
12.2.1 Overflow of the flow totalizers
The overflow behavior of the totalizers can be set:
Without overflow
• The value of the totalizer increases to the internal limit of 1038.
• The values will be displayed as exponential numbers (±1.00000E10), if necessary. The flow totalizer can only be reset to
zero manually.
With overflow
• The flow totalizer will be reset to zero automatically when ±9999999999 is reached.
Select Special Funct.\SYSTEM settings\Measuring\Quant. wrapping.
Select on to work with overflow. Select off to work without overflow. Press ENTER.
Independent of the setting, the flow totalizers can be reset to zero manually.
Note! The overflow of a totalizer influences all output channels, e.g., the data logger and the online trans-
mission of data.
The output sum of both totalizers (throughput Q) transmitted via an output is not valid after the overflow (wrapping) of one of the totalizers.
To signalize the overflow of a flow totalizer, an alarm output with the switching condition QUANT. and
the type HOLD has to be activated.
12.3 Settings of the NoiseTrek parallel beam mode
The NoiseTrek parallel beam mode works using parallel mounted transducers. It improves the signal quality when measuring on small pipes or with strongly attenuating fluids.
Select Special Funct.\SYSTEM settings\Measuring. Press ENTER until the list
item Enable NoiseTrek is displayed. Select on to enable the NoiseTrek mode, off to
disable it. Press ENTER.
Select on to enable the NoiseTrek parallel beam mode, off to disable it. Press ENTER.
This display will only be indicated if the NoiseTrek mode is enabled.
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FLUXUS WW 12 Advanced measuring functions
Enable NoiseTrek
off >ON<
Auto NoiseTrek ?
no >YES<
TT-Failed |After
NoiseTrek | 40s
NT-Failed |After
TransTime | 60s
NT-Ok,but | Each
check TT | 300s
Keep TT | For
checking | 5s
12.4 Settings of the HybridTrek mode
The HybridTrek mode combines the TransitTime mode and the NoiseTrek mode. During a measurement in the HybridTrek mode, the transmitter automatically toggles between the TransitTime mode and the NoiseTrek mode depending
on the gaseous or solid content in the fluid in order to receive valid measuring values.
Note! Due to its higher measuring accuracy, the TransitTime mode should be used preferentially over the
NoiseTrek mode.
Select Special Funct.\SYSTEM settings\Measuring. Press ENTER until the list
item Enable NoiseTrek is displayed. Select on to enable the NoiseTrek mode, off to
disable it. Press ENTER.
Select no to deactivate the automatic toggling between the TransitTime and the NoiseTrek
mode. If no is selected, the NoiseTrek mode can only be activated and deactivated manually during the measurement.
Select yes to activate the automatic toggling between the TransitTime and the NoiseTrek
mode. The NoiseTrek mode can also be activated and deactivated manually during the
measurement if yes is selected.
Press ENTER.
This display will only be indicated if the NoiseTrek mode is enabled and the NoiseTrek parallel beam mode has not been activated.
If the automatic toggling between the TransitTime and the NoiseTrek mode is activated, the
toggling parameters have to be configured.
Enter the time after which the transmitter has to toggle to the NoiseTrek mode if there are
no valid measured values in the TransitTime mode. If 0 (zero) is entered, the transmitter
does not toggle to the NoiseTrek mode.
Enter the time after which the transmitter has to toggle to the TransitTime mode if there are
no valid measured values in the NoiseTrek mode. If 0 (zero) is entered, the transmitter
does not toggle to the TransitTime mode.
If there are valid measured values in the NoiseTrek mode, the transmitter can periodically toggle to the TransitTime mode
in order to check if a measurement in the TransitTime mode is possible again. The time interval and the duration of the
check of the TransitTime mode are set as follows:
Enter the time after which the transmitter has to toggle to the TransitTime mode. If 0 (zero)
is entered, the transmitter does not toggle to the TransitTime mode.
Enter the time after which the transmitter has to toggle from the TransitTime mode back to
the NoiseTrek mode if there are no valid measured values.
Example: TT-Failed
NT-Failed
NoiseTrek: After 40s
TransTime: After 60s
NT-Ok,but check TT: Each 300s
Keep TT checking: For 5s
If no measurement is possible in the TransitTime mode within 40 s, the transmitter toggles to the NoiseTrek
mode. If no measurement is possible in the NoiseTrek mode within 60 s, the transmitter toggles back to the
TransitTime mode.
If valid measured values are obtained during the measurement in the NoiseTrek mode, the transmitter toggles to the TransitTime mode every 300 s. If no measurement is possible in the TransitTime mode within
5 s, the transmitter toggles back to the NoiseTrek mode. If a valid measured value is obtained in the
TransitTime mode within 5 s, the transmitter continues the measurement in the TransitTime mode.
In order to toggle manually between the TransitTime and NoiseTrek mode during the measurement, press key when
the measuring mode is displayed.
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12 Advanced measuring functions FLUXUS WW
Velocity limit
0.0 m/s
Cut-off Flow
absolut >SIGN<
Cut-off Flow
factory >USER<
+Cut-off Flow
2.5 cm/s
-Cut-off Flow
-2.5 cm/s
Cut-off Flow
2.5 cm/s
12.5 Upper limit of the flow velocity
Single outliers caused by heavily disturbed surroundings can appear among the measured values of the flow velocity. If
these outliers are not ignored, they will affect all derived physical quantities, which will then be unsuitable for the integration (e.g., pulse outputs).
It is possible to ignore all measured flow velocities exceeding the preset upper limit. These measured values will be
marked as outliers.
The upper limit of the flow velocity is set in Special Funct.\SYSTEM settings\Measuring\Velocity limit.
Enter 0 (zero) to switch off the outliers check.
Enter a limit > 0 to switch on the outliers checking. The measured flow velocity will then be
compared to the entered upper limit.
Press ENTER.
If the flow velocity is higher than the upper limit,
• the flow velocity will be marked as invalid. The physical quantity cannot be determined.
• an exclamation point (!) will be displayed after the unit of measurement. In case of a normal error, an interrogation point
(?).
Note! If the upper limit is too low, a measurement might be impossible because most of the measured val-
ues will be marked as "invalid".
12.6 Cut-off flow
The cut-off flow is a lower limit for the flow velocity. All measured flow velocities that are lower than the limit and their derived values are set to zero.
The cut-off flow can depend on the flow direction. The cut-off flow is set in Special Funct.\SYSTEM settings\Mea-
suring\Cut-off Flow.
Select sign to define a cut-off flow depending on the flow direction. Two independent limits
are set for the positive and negative flow directions.
Select absolut to define a cut-off flow independent of the flow direction. A limit is set for
the absolute value of the flow velocity.
Press ENTER.
Select factory to use the default limit of 2.5 cm/s (0.025 m/s) for the cut-off flow.
Select user to enter the cut-off flow.
Press ENTER.
If Cut-off Flow\sign and user are selected, 2 values have to be entered:
Enter the cut-off flow. Press ENTER.
All positive values of the flow velocity smaller than this limit are set to zero.
Enter the cut-off flow. Press ENTER.
All negative values of the flow velocity greater than this limit will be set to zero.
If Cut-off Flow\absolut and user are selected, only one value have to be entered:
Enter the cut-off flow. Press ENTER.
The absolute value of all flow velocity values lower than this limit will be set to zero.
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FLUXUS WW 12 Advanced measuring functions
Flow Velocity
>NORMAL< uncorr.
A:PROFILE CORR.
>NO< yes
A:FLOW VELOCITY
2.60 m/s
A:PROFILE CORR.
no >YES<
A:Flow Velocity
*U 54.5 m/s
Enable FastFood
no >YES<
FF-check (0=OFF)
0 min
12.7 Uncorrected flow velocity
For special applications, the uncorrected flow velocity might be of interest.
The profile correction for the flow velocity is activated in Special Funct.\SYSTEM settings\Measuring\Miscella-
neous\Flow Velocity.
Select normal to display and output the flow velocity with profile correction.
Select uncorr. to display and output the flow velocity without profile correction. Press ENTER.
If uncorr. is selected, each time the program branch Measuring is selected it will be requested whether the profile correction is to be used or not.
If no is selected, the profile correction will be switched off.
All physical quantities will be calculated with the uncorrected flow velocity.
During the measurement, the designation of the physical quantity is displayed in capital letters to indicate that the value is uncorrected.
Press ENTER.
If yes is selected, the uncorrected flow velocity will only be used if the flow velocity is selected as physical quantity in the program branch Output Options.
All other physical quantities (volumetric flow rate, mass flow, etc.) will be determined with
the corrected flow velocity.
During the measurement, the designation of the physical quantity "flow velocity" is displayed
in capital letters to indicate that the value is uncorrected.
Press ENTER.
In both cases, the corrected flow velocity can also be displayed.
Press key to scroll until the flow velocity is displayed. The uncorrected flow velocity is
marked with a "U".
Uncorrected flow velocities transmitted to a PC are marked with uncorr..
12.8 Measurement of high dynamic flows (FastFood mode)
The FastFood mode allows to measure flows with high dynamics.
A continuous adaptation to changing measuring conditions is only partially realized in the FastFood mode.
• The sound speed of the fluid is not updated. The last measured value of the sound speed before toggling to the FastFood mode is used.
• It is not possible to change the measuring channel. The measurement takes place on one channel only. During the activation of the FastFood mode no measurement is carried out on the other channels.
• The outputs of the FastFood mode activated channel can still be used.
• Outputs for further channels (multi-channel measurement) transmit an error value.
• The measured values are stored with the storage rate of the FastFood mode (see section 12.8.2).
• The FastFood mode has to be enabled and activated.
12.8.1 Enabling/disabling the FastFood mode
Press key C. Enter the HotCode 007022 (see section 9.5).
Select yes to enable the FastFood mode, no to disable it.
If the FastFood mode is enabled, a time t has to be entered. When the FastFood mode is
started, a search run will always be started after expiration of time t.
The search run is used to optimize the amplification settings.
Enter 0 if no search run is to be carried out.
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12 Advanced measuring functions FLUXUS WW
Storage Rate
70 ms
A:Volume flow
54.5 m3/h
A:Mode=FastFood
54.5 m3/h
Parameter ↕
for Channel Y:
Calculation:
Y= A - B
12.8.2 Storage rate of the FastFood mode
If the FastFood mode is enabled, a Storage Rate in ms will have to be entered in the
program branch Output Options.
Press ENTER.
12.8.3 Activation/deactivation of the FastFood mode
If the FastFood mode is enabled and a measurement is started, the normal measuring mode will still be running (i.e. multichannel measurement with permanent adaptation to the measuring conditions). If the data logger is activated, the measured values will not be stored.
Press key to activate/deactivate the FastFood mode for the measuring channel currently displayed.
Press key to scroll through the upper line until the activated measuring mode
A:Mode=FastFood
If the data logger is activated, a new data set will be created and the storing of measured values will be started. If the FastFood mode is deactivated or the measurement is interrupted, the storing will be stopped.
or
A:Mode=TransTime
is displayed.
Note! The values of the current series of measured values will be deleted if the FastFood mode is deacti-
vated and activated again without interrupting the measurement.
The values of the current series of measured values will be kept if the measurement is interrupted before the FastFood mode is activated again. A new series of measured values is created when the
next measurement is started.
12.9 Calculation channels
Note! Calculation channels are only available if the transmitter has more than one measuring channel.
In addition to the ultrasonic measuring channels, the transmitter has 2 virtual calculation channels Y and Z. The measured
values of the measuring channels A and B can be calculated via the calculation channels.
The result of the calculation is the measured value of the selected calculation channel. This measured value is equivalent
to the measured values of a measuring channel. All functions which are possible with the measured values of a measuring
channel (totalizing, online transmission of data, storing, outputs, etc.) can also be done with the values of a calculation
channel.
12.9.1 Characteristics of the calculation channels
In the program branch Parameter, the measuring channels to be used for the calculation and the calculation function
have to be entered.
It is possible to define 2 cut-off flows for each calculation channel. The cut-off flow is not based on the flow velocity as is
the case with the measuring channels. Instead, it is defined in the unit of measurement of the physical quantity selected
for the calculation channel. During the measurement, the calculation values are compared with the cut-off values and set
to zero, if necessary.
A calculation channel provides valid measured values if at least one measuring channel provides valid measured values.
12.9.2 Parameterization of a calculation channel
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Select a calculation channel (Y or Z) in the program branch Parameter. Press ENTER.
The current calculation function is displayed. Press ENTER to edit the function.
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FLUXUS WW 12 Advanced measuring functions
>CH1< funct ch2↕
A - B
4
6
8
2
Y: is valid if
A: and B: valid
Y: is valid if
A: or B: valid
Output Options ↕
for Channel Y:
Physic. Quant. ↕
Mass Flow
Three scroll lists are displayed in the upper line.
• selection of the first measuring channel (ch1)
• selection of the calculation function (funct)
• selection of the second measuring channel (ch2)
Select a scroll list with key or .
The list items are displayed in the lower line.
Press key and
to scroll
through the scroll list. All measuring channels and their
absolute values can be used as input channels.
The following calculation functions are available:
• -: Y = ch1 - ch2
• +: Y = ch1 + ch2
•(+)/2: Y = (ch1 + ch2)/2
•(+)/n: Y = (ch1 + ch2)/n
•|-|: Y = |ch1 - ch2|
Press ENTER.
This message will be displayed after the parameterization of the calculation channel if the
calculation function (+)/2 is selected. The measured values of the calculation channel
(here: Y) will be valid if the measured values of both measuring channels (here: A and B)
are valid. If only one measuring channel provides valid measured values, the measured
values of the calculation channel will be invalid.
This message will be displayed after the parameterization of the calculation channel if the
calculation function (+)/n is selected. The measured values of the calculation channel
(here: Y) will be valid if the measured values of at least one measuring channel (here A or
B) are valid. If only one measuring channel provides valid measured values, these measured values will be used for the calculation channel.
12.9.3 Output options for a calculation channel
Select a calculation channel in the program branch Output Options.
Press ENTER.
Select the physical quantity to be calculated. Press ENTER.
Make sure that the physical quantity selected for the calculation channel can be calculated from the physical quantities of
the selected measuring channels. Possible combinations are shown in Tab. 12.2.
Tab. 12.2: Physical quantity of the calculation channel
physical quantity of the
calculation channel
flow velocity xxxxxx
volumetric flow rate x x x x
possible physical quantity of the
first measuring channel (CH1)
flow velocity
volumetric
flow rate
mass flow
rate
possible physical quantity of the
second measuring channel (CH2)
flow velocity
volumetric
flow rate
mass flow
rate
mass flow rate x x x x
Example: The difference of the volume flow rates of the channels A and B is to be calculated.
88 UMFLUXUS_WWV1-1EN, 2018-02-28
The physical quantity of the measuring channel A and B can be the volumetric flow rate or the mass
flow, but not the flow velocity. The physical quantities of both measuring channels do not need to be
identical (channel A = mass flow, channel B = volumetric flow rate).
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12 Advanced measuring functions FLUXUS WW
Mass in: ↕
kg/h
+Cut-off Flow
1.00 kg/h
-Cut-off Flow
-2.00 kg/h
Damping
10 s
Store Meas.Data
>NO< yes
par >MEA< opt sf
Measuring
CHANN: A B >Y< Z
MEASUR .
WARNING! CHANNEL
B:INACTIV!
Y:Flow Velocity
53.41 m/s
Y: A - B
53.41 m/s
DNmin Q-Sensor
15 mm
Select the unit of measurement. Press ENTER.
It is possible to define 2 cut-off flows for each calculation channel. They are defined in the unit of measurement of the
physical quantity selected for the calculation channel.
All positive calculated values less than the limit, will be set to zero.
All negative calculated values that are greater than the limit will be set to zero.
Enter the damping factor. If the damping factor for the measuring channels A or B has already been entered in the program branch Parameter(see section 12.1), enter the value
0 (zero). Press ENTER.
The data logger can be activated/deactivated. Press ENTER.
12.9.4 Measuring with calculation channels
Select the program branch Measuring. Press ENTER.
Activate the necessary channels. Calculation channels are activated or deactivated the
same way as measuring channels. Press ENTER.
If a measuring channel that is needed for an activated calculation channel has not been activated, a warning will be displayed. Press ENTER.
Position the transducers for all activated measuring channels. The measurement will be started automatically.
If a calculation channel is activated, the HumanMux mode (see section 11.2.2) will be selected at the beginning of the measurement and the values of the calculation channel will
be displayed.
If the AutoMux mode is selected, the measured values of the measuring channels, but not
the measured values of the calculation channels, will be displayed alternately.
Press key to display the calculation function.
Press key to display the measured values of the different channels.
12.10 Change of the limit for the inner pipe diameter
It is possible to change the lower limit of the inner pipe diameter for a given transducer type.
• Press key C. Enter the HotCode 071001 (see section 9.5).
Note! If a transducer is used below its recommended inner pipe diameter, a measurement might be impos-
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Enter the lower limit of the inner pipe diameter of the displayed transducer type. Press ENTER to select the next transducer type.
sible.
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FLUXUS WW 12 Advanced measuring functions
DSP-SignalSnap
off >ON<
DSP-SignalSnap
Install Snap
Snap-Memory
5 NUM
AutoSnap
>NO< yes
Snap ringbuffer
>NO< yes
DSP-SignalSnap
Clear Snaps
DSP-SignalSnap
Snaps ->Rs232
5
12.11 Diagnosis by means of the snap function
By means of the snap function it is possible to store measuring parameters which are useful for the evaluation of measuring results or diagnostic purposes.
The snap function is activated in Special Funct.\SYSTEM settings\Signal snap\DSP-SignalSnap.
Select on to activate the snap function. Select off to deactivate the snap function. Press
ENTER.
Snap memory settings
Select Install Snap. Press ENTER.
Enter the number of the snap memory storage space. Press ENTER.
Activate or deactivate the auto-snap function. Press ENTER.
Activate or deactivate the snap ringbuffer. Press ENTER.
Delete snaps
Select Clear Snaps. Press ENTER.
Read Snaps
Select Snaps ->Rs232. Press ENTER.
Activation of the snap function
In order to activate the snap function, press key during the measurement.
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12 Advanced measuring functions FLUXUS WW
Special Funct. ↕
Program code
Program code
------
INVALID CODE !
909049
Program code
------
12.12 Program code
A running measurement can be protected from an inadvertent intervention by a program code.
If a program code has been defined, it will be requested in case of any intervention in the measurement (a command or
key BRK).
12.12.1 Defining a program code
Select Special Funct.\Program code.
Enter a program code with max. 6 digits. Press ENTER.
An error message will be displayed if a reserved number has been entered (e.g., a
HotCode for language selection).
A program code will remain valid as long as:
• no other valid program code is entered or
• the program code is not deactivated.
Note! Do not forget the program code!
12.12.2 Intervention in the measurement
If a program code is active, the message PROGRAM CODE ACTIVE will be displayed for a few seconds when a key is
pressed.
In order to stop a measurement which is protected by a program code, press key C and enter the program code. The display does not change during the input of the program code. If the entered program code is correct, the measurement will
be interrupted and the main menu will be displayed.
The input of a program code is interrupted by pressing key C.
12.12.3 Deactivation of the program code
Select Special Funct.\Program code.
The program code is deleted by entering "------". Press ENTER.
If the character "-" is entered less than 6 times, this character sequence will be used as the
new program code.
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FLUXUS WW 13 Data logger and transmission of data
Output Options↕
for Channel A:
Store Meas.Data
no >YES<
Storage Rate ↕
Once per 10 sec.
Storage Rate
1s
13 Data logger and transmission of data
The transmitter has a data logger in which the measured values are stored during the measurement (see section 13.1).
In addition, the measured values can be transmitted to a PC via the serial interface or stored on a SD card (see section
13.2). For the connection of the serial interface see section 8.4.
13.1 Data logger
The following data will be stored:
•date
•time
• measuring point
• pipe parameter
• fluid parameter
• transducer data
• sound path (reflection or diagonal arrangement)
• transducer distance
• damping factor
• storage rate
• physical quantity
• unit of measurement
• measured values
• values of the totalizers (in case the totalizers are activated)
• diagnostic values (in case the storing of diagnostic values is activated)
In order to store the measured data, the data logger has to be activated (see section 13.1.1).
The available data logger memory can be displayed (see section 13.1.6).
The storing of each measured value will be signalized acoustically. This signal can be deactivated (see section 13.1.3 in
"Acoustic signal during storing").
13.1.1 Activating/deactivating the data logger
Select the channel for which the data logger is to be activated in the program branch Output Options. Press ENTER.
This display will not be indicated if the transmitter has only one measuring channel.
Press ENTER until the menu item Store Meas.Data is displayed.
Select yes to activate the data logger, no to deactivate it. Press ENTER.
13.1.2 Setting the storage rate
The storage rate is the frequency to transmit or store measured values. The storage rate is set separately for each measuring channel.
If the storage rate is not set, the storage rate which was selected previously will be used.
The storage interval should be at least equal to the number of activated measuring channels, e.g., the storage interval with
2 activated measuring channels: min. 2 s, 4 s are recommended
Select a storage rate or EXTRA. Press ENTER.
This display will only be indicated if Store Meas.Data and/or Serial Output are activated.
Enter the storage rate if EXTRA was selected. Press ENTER.
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Start logger ↕
Promptly
Ringbuffer
off >ON<
Storage mode
>SAMPLE< average
13.1.3 Data logger settings
Select Special Funct.\SYSTEM settings\Storing. It contains the following menu items:
• start of storing
• ringbuffer
• storage mode
• totalizer storing
• signal amplitude storing
• storing of the fluid sound speed
• diagnostic values storing
• acoustic signal during storing
Start of storing
In order to start the storing of measured values with several measuring instruments at the same time, it is possible to set a
starting time.
Select the moment at which the storing has to start.
Promptly: The storing starts immediately.
On full 5 min.: The storing starts in the next full 5 minutes.
On full 10 min.: The storing starts in the next full 10 minutes.
On quarter hour: The storing starts in the next full 15 minutes.
On half hour: The storing starts in the next 30 minutes.
On full hour: The storing starts in the next full hour.
Example: actual time: 09:06 am
setting: On full 10 min.
The storing starts at 09:10 am.
Ringbuffer
The setting of the ringbuffer influences the storing of measured values as soon as the data logger is full.
• If the ringbuffer is activated, the available data logger will be halved. The oldest measured values will be overwritten.
Only the data logger memory that was free during the activation will be used by the ringbuffer. If more data logger memory is necessary, measured values in the data logger should previously be deleted.
• If the ringbuffer is deactivated, the storing of measured values will be stopped.
Select the behavior of the ringbuffer. Press ENTER.
Storage mode
Select the storage mode. Press ENTER.
If sample is selected, the current measured value will be used for the storing and online
transmission of data.
If average is selected, the average of all values measured during a storage interval will be
used for the storing and online transmission of data.
Note! The storage mode does not affect the outputs.
Note! Storage mode = average
The average of the physical quantity and other physical quantities assigned to the measuring channel, e.g., the measured temperature, will be calculated.
If the storage rate < 5 s (see section 13.1.2) is selected, the sample will be used.
If no average could be calculated over the complete storage interval, the value will be marked as invalid. The ASCII file will contain ??? for invalid average values of the measured values and
?UNDEF instead of invalid temperatures.
Totalizer storing
see section 12.2
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FLUXUS WW 13 Data logger and transmission of data
Store Amplitude
off >ON<
Store c-Medium
off >ON<
Store diagnostic
off >ON<
Beep on storage
>on< off
A:Meas.Point No.:
xxx (↑↓← →)
DATA MEMORY
OVERFLOW!
Special Funct. ↕
Delete Meas.Val.
Really Delete?
no >YES<
Special Funct. ↕
Instrum. Inform.
FLUXUS WW -XXXXXXXX
Free: 18327
Signal amplitude storing
If on is selected and the data logger is activated, the amplitude of the measured signal will
be stored together with the measured values. Press ENTER.
Storing of the fluid sound speed
If on is selected and the data logger is activated, the sound speed of the fluid will be stored
together with the measured values. Press ENTER.
Diagnostic values storing
If on is selected and the data logger is activated, the diagnostic values will be stored together with the measured values. Press ENTER.
Acoustic signal during the storing
Per default, an acoustic signal will be emitted every time a measured value is stored or transmitted to a PC or printer. The
signal can be deactivated in Special Funct.\SYSTEM settings\Storing\Beep on storage.
Select off to deactivate the acoustic signal, on to activate it. Press ENTER.
13.1.4 Measurement with activated data logger
• Start the measurement.
Enter the measuring point number. Press ENTER.
If arrows are displayed in the lower line on the right, ASCII text can be entered. If digits are
displayed, only digits, point and hyphen can be entered.
For the setting of the input mode, see section 14.2.3.
If Output Options\Store Meas.Data has been activated and Special Funct.\SYSTEM settings\Ringbuffer
is deactivated, an error message will be displayed as soon as the data logger is full.
Press ENTER.
The error message will be displayed periodically.
Th storing will be stopped.
13.1.5 Deleting measured values
Select Special Funct.\Delete Meas.Val.. Press ENTER.
Select yes or no. Press ENTER.
13.1.6 Available data logger
If the data logger is empty and a measurement is started with one physical quantity on one measuring channel without
storing the totalizer, approx. 100 000 measured values can be stored. The available data logger can be displayed:
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Select Special Funct.\Instrum. Inform.. Press ENTER.
The type and the serial number of the transmitter are displayed in the upper line.
The available data logger will be displayed in the lower line (here: 18 327 additional measured values can be stored). Press key BRK twice to return to the main menu.
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13 Data logger and transmission of data FLUXUS WW
full= 26.01/07:39
54.5 m3/h
last= 26.01/07:39
54.5 m3/h
Send Offline via
RS232 >RS485<
Max. 100 series of measured values can be stored. The number of series of measured values depends on the total number of measured values stored in the previous series of measured values.
It is possible to display the time at which the data logger will be full during the measurement. All activated channels, totalizers and other values will be considered.
Press key to scroll through the display of the upper line.
If the ringbuffer is activated and has overflown at least once, this display will be indicated.
13.2 Data transmission
The measured values can be transmitted to a PC via the serial interface RS232 or RS485 (optional) or stored on a SD
card (optional).
13.2.1 Online transmission
The measured values are transmitted during the measurement. The measurement data can be transmitted to a terminal
program.
Tab. 13.1: Overview of online transmission
serial interface transmission see
RS232 terminal program section 13.2.5
RS485 (sender) terminal program section 13.2.5
The data logger works independently of the online transmission.
Note! It is recommended to use the RS485 interface for the online trans-mission of data. The RS232 inter-
face should only be used if the transmitter does not have an RS485 interface.
13.2.2 Offline transmission
The measurement data of the data logger are transmitted.
Tab. 13.2: Overview of offline transmission
serial interface transmission see
RS232 terminal program section 13.2.6
RS485 (sender) terminal program section 13.2.6
Selection of the serial interface for the offline transmission
Select Special Funct.\SYSTEM settings\serial transmis. Press ENTER until Send Offline via is displayed.
Select the serial interface for the offline transmission of da-ta.
This display will only be indicated if the transmitter has an RS485 interface.
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FLUXUS WW 13 Data logger and transmission of data
SER:kill spaces
off >ON<
SER:decimalpoint
’.’ >’,’<
SER:col-separat.
’;’ >’TAB’<
>BAUD<data par st
9600 8bit EVEN 2
SYSTEM settings↕
Network
Device address:
0 ADR
RS485 protocol
default >SETUP<
>BAUD< parity st
9600 EVEN 1
13.2.3 Format of measurement data
Select Special Funct.\SYSTEM settings\serial transmis.
Select on if the space characters are not to be transmitted. Press ENTER.
The file size will be considerably smaller (shorter transmission time).
Select the decimal marker to be used for floating-point numbers (point or comma). Press
ENTER.
This setting depends on the setting of the operating system of the PC.
Select the character to be used to separate columns (semicolon or tabulator). Press ENTER.
13.2.4 Transmission parameters
• the transmitter sends CRLF-terminated ASCII
• max. line length: 255 digits
RS232
• default: 9 600 bits/s, 8 data bits, even parity, 2 stop bits, protocol RTS/CTS (hardware, handshake)
The transmission parameters of the RS232 interface can be changed:
Press key C. Enter the HotCode 232-0- (see section 9.5).
Set the transmission parameters in the 4 scroll lists. Press ENTER.
• baud: baud rate
• data: number of data bits
• par: parity
• st: number of stop bits
RS485
• default: 9 600 bit/s, 8 data bits, even parity, 1 stop bit
The transmission parameters of the RS485 interface can be changed in the program branch Special Funct.\SYSTEM
settings\Network. These displays will only be indicated if the transmitter has an RS485 interface.
Select Special Funct.\SYSTEM settings\Network to change the setting of the
transmission parameters.
Press ENTER to confirm the device address in the network.
Select default to display the default transmission param-eters.
Select setup to change the transmission parameters. Press ENTER.
Set the transmission parameters in the 3 scroll lists. Press ENTER.
• baud: baud rate
• parity: parity
• st: number of stop bits
The default transmission parameters will be set if default is selected and the transmission parameters have not been changed.
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13 Data logger and transmission of data FLUXUS WW
Serial Output
no >YES<
SEND ONLINE-HEAD
20 mm
Special Funct. ↕
Print Meas.Val.
NO VALUES !
Print Meas.Val.
Send Header 01
................
■ ■ ■ ■ ■ ■
................
SERIAL ERROR !
Print Meas.Val.
13.2.5 Online transmission of data to a terminal program or SD card
• Start the terminal program.
• Enter the transmission parameters into the terminal program (see section 13.2.4). The transmission parameters of the
terminal program and the transmitter have to be identical.
Transmitter settings
• Select the program branch Output Options. Press ENTER.
• Select the channel for which the online transmission is to be activated. Press ENTER until the menu item Serial Out-
put is displayed.
Select yes to activate the online transmission. Press ENTER.
• Set the storage rate (see section 13.1.2).
• Start the measurement. The measuring point number will be requested (see section 13.1.4).
The measured values are transmitted during the measurement.
If the transmitter is equipped with an SD card (optional), the measurement data will be stored daily at 00:00 in an ASCII file
(file name: jjmmtt01.txt).
13.2.6 Offline transmission of data to a terminal program
• Start the terminal program.
• Enter the transmission parameters into the terminal program (see section 13.2.4). The transmission parameters of the
terminal program and the transmitter have to be identical.
Select Special Funct.\Print Meas.Val.. Press ENTER.
This error message will be indicated if no measured valued are stored.
Press ENTER.
This message will be displayed if the measurement values are transmitted.
The progress of the transmission of data is displayed by a bar graph.
This error message will be displayed if an error has oc-curred during the serial transmission.
Press ENTER. Check the connections and make sure the PC is ready to receive data.
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FLUXUS WW 13 Data logger and transmission of data
13.2.7 Structure of the data
First, the header is transmitted. The first 4 lines contain general information about the transmitter and the measurement.
The following lines contain the parameters for each channel.
Example: \DEVICE : FFLUXUS WW -XXXXXXXX
\MODE : ONLINE
DATE : 2014-01-09
TIME : 19:56:52
Par.Record
Meas.Point No.: : A:F5050
Pipe
Outer Diameter : 60.3 mm
Wall Thickness : 5.5 mm
Roughness : 0.1 mm
Pipe Material : Carbon Steel
Lining : WITHOUT LINING
Medium : Water
Medium Temperat. : 38 C
Fluid pressure : 1.00 bar
Transducer Type : xxx
Sound Path : 3 NUM
Transd. Distance : -15.6 mm
Damping : 20 s
Full-Scale Val. : 4.50 m3/h
Physic. Quant. : Volume flow
Unit Of Measure : [m3/h]/[m3]
Numb.Of Meas.Val : 100
Next, the line \DATA is transmitted. Followed by the column titles (see Tab. 13.3) for respective channel. The measured
values are transmitted afterwards.
Example: \DATA
A: \*MEASURE; Q_POS; Q_NEG;
B: \*MEASURE; Q_POS; Q_NEG;
Depending on the storage interval, one data line per activated measuring channel is transmitted. The line ??? will be
transmitted if there are no measured values available for the storage interval.
Example: With a storage interval of 1 s, 10 lines with ??? will be transmitted if the measurement has been re-
started after an interruption of 10 s for the positioning of the transducers.
The following data columns can be transmitted:
Tab. 13.3: Columns of data
column title column format content
\*MEASURE ###000000.00 physical quantity selected in Output Options
Q_POS +00000000.00 totalizer value for the positive flow direction
Q_NEG -00000000.00 totalizer value for the negative flow direction
SSPEED sound speed of the fluid
AMP signal amplitude
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13 Data logger and transmission of data FLUXUS WW
Online transmission
Columns will be created for all quantities appearing during the measurement. The columns Q_POS and Q_NEG will remain empty if the totalizers are deactivated.
As the totalizers cannot be activated for the physical quantity "flow velocity", these columns will not be generated.
Offline transmission
During the offline transmission of data, columns will only be created if at least one measured value is stored in the data
set. The columns Q_POS and Q_NEG will not be created if the totalizers are deactivated.
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FLUXUS WW 14 Settings
SYSTEM settings↕
Set Clock
TIME 11:00
ok >NEW<
TIME 11:00
Set Time !
4
6
8
2
TIME 11:11
>OK< new
DATE 2011-01-25
ok >NEW<
DATE 2011-01-25
Set Date !
4
6
8
2
DATE 2011-01-26
>OK< new
SYSTEM settings↕
Dialogs/Menus
Pipe Circumfer.
off >ON<
Outer Diameter
100.0 mm
Pipe Circumfer.
314.2 mm
Pipe Circumfer.
180 mm
14 Settings
14.1 Time and date
The transmitter has a battery-powered clock. Measured values are automatically stored with date and time.
14.1.1 Time
Select Special Funct.\SYSTEM settings\Set Clock.
Press ENTER.
The current time is displayed. Select ok to confirm the time or new to adjust it. Press ENTER.
Select the character to be edited with key and .
Edit the selected character with key and .
Press ENTER.
The new time is displayed. Select ok to confirm the time or new to adjust it again. Press
ENTER.
14.1.2 Date
After the time has been set, DATE is displayed.
Select ok to confirm the date or new to adjust it.
Press ENTER.
Select the character to be edited with key and .
Edit the selected character with key and . Press ENTER.
The new date is displayed. Select ok to confirm the date or new to adjust it again. Press
ENTER.
14.2 Dialogs and menus
Select Special Funct.\SYSTEM settings\Dialogs/Menus. Press ENTER.
Note! The settings will be stored at the end of the dialog. If the menu item is quit by pressing key BRK, the
changes will not be stored.
14.2.1 Pipe circumference
Select on if the pipe circumference is to be entered instead of the pipe diameter in the program branch Parameter. Press ENTER.
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If on is selected for Pipe Circumfer., the outer pipe diameter will nevertheless be requested in the program branch Parameter.
To select the menu item Pipe Circumfer., enter 0 (zero). Press ENTER.
The value displayed in Pipe Circumfer. is calculated on the basis of the last displayed
value of the outer pipe diameter.
.
Example: 100 mm
π = 314.2 mm
Enter the pipe circumference. The limits for the pipe circumference are calculated on the
basis of the limits for the outer pipe diameter.
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