Systec Controls deltawaveC-F, deltawaveC-P User Manual
deltawaveC-F/P
Manual
1 systec Controls Mess- und Regeltechnik GmbH
Manual
deltawaveC-F/P
Ultrasonic flow and heat measurement
portable
Stationary
Ver. 1.43.xx
deltawaveC-F/P
Manual
2 systec Controls Mess- und Regeltechnik GmbH
Table of content
Table of content ........................................................................................................ 2
1 Preamble ........................................................................................................... 5
2 About this manual .............................................................................................. 6
3 deltawaveC-F/P & components ......................................................................... 7
3.1 Approvals / EMC .................................................................................... 7
3.2 Scope of delivery deltawaveC-F / P basic package ............................... 8
3.3 Transducer............................................................................................. 9
3.4 Safety instructions ............................................................................... 10
3.5 Important instructions for the use of deltawaveC-P ............................. 10
4 Measuring principle.......................................................................................... 11
4.1 2-channel device applications .............................................................. 13
5 deltawaveC-F/P Interfaces .............................................................................. 14
5.1 Overview deltawaveC-P ...................................................................... 14
5.2 Overview deltawaveC-F ....................................................................... 15
5.3 Connection notes ................................................................................. 16
6 Operating ......................................................................................................... 17
6.1 Control Buttons .................................................................................... 17
6.2 How to navigate ................................................................ ................... 17
6.3 Select measurement channel .............................................................. 17
7 First Start ......................................................................................................... 18
7.1.1 Adjustment of the display language ................................................ 18
7.1.2 Navigation in main menu ................................................................ 19
7.1.3 Setting time and date ...................................................................... 20
8 Preparing for measurement deltawaveC-F/P ................................................... 21
8.1 Preparation of the measurement / installation location ........................ 21
8.1.1 Inlet and outlet distances ................................................................ 21
8.1.2 Basic principles for ultrasonic transducer assembly ........................ 23
8.1.3 Ultrasonic sensor Mounting on horizontal pipelines ........................ 23
8.1.4 Ultrasonic transducer on uneven surfaces ...................................... 24
8.2 Fundamentals of parameterization ...................................................... 25
8.3 Parameterization with the Quick Setup ................................................ 26
8.4 Sensor assembly / Sensor distance ..................................................... 33
8.4.1 Introduction to the installation of ultrasonic transducers ................. 33
8.4.2 Mounting ultrasonic transducer ....................................................... 34
8.4.3 Correct selection of transducer types .............................................. 35
8.4.4 Correct selection of mounting options ............................................. 35
8.4.5 Mounting of the Transducer in V-Mode or W-Mode ....................... 36
8.4.6 Mounting the ultrasonic transducers based on the Z method ......... 38
8.4.7 Mounting the ultrasonic transducers at two crossed measuring paths
40
8.5 Zero Setting ......................................................................................... 41
9 Heat measurement .......................................................................................... 42
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9.1 Introduction .......................................................................................... 43
9.2 Installing the Pt100 .............................................................................. 44
9.3 Parameterization of the Pt100 for the heat quantity measurement ...... 45
10 Measuring windows deltawaveC-F/P ........................................................ 46
10.1 Headline .............................................................................................. 46
10.2 Measuring window "Flow 1" ................................................................. 47
10.3 Measuring window "Flow 2" ................................................................. 48
10.4 The measuring window "heat quantity" ................................................ 49
10.5 Password protection ............................................................................ 50
10.6 The measurement windows of the 2-channel deltawaveC-F ............... 51
11 The main menu (complete menu) ............................................................. 52
11.1 Loading, saving and managing parameter data ................................... 52
11.2 The pipe parameters ............................................................................ 54
11.3 The Fluid Setup ................................................................................... 55
11.4 The Transducer Setup ......................................................................... 56
11.5 Parameterization of the inputs and outputs ......................................... 57
11.5.1 Parameterization of the 4-20mA outputs ......................................... 57
11.5.2 Parameterization of the relay .......................................................... 59
11.5.3 Parameterization of the pulse output .............................................. 60
11.5.4 Impulse-Overflow-Error; IOE ........................................................... 61
11.6 Serial communication, Modbus & Logger ............................................ 61
11.6.1 Serial data transmission .................................................................. 61
11.6.2 Modbus ........................................................................................... 63
11.6.3 The Data Logger ............................................................................. 64
11.6.3.1 Activation of the data logger function:.................................... 64
11.6.3.2 Administration and structure of log data ................................ 65
11.6.3.3 Starting a time-controlled data record.................................... 65
11.6.3.4 Cancelling a time-controlled data record ............................... 67
11.6.3.5 Quick-Logger ......................................................................... 67
11.7 Systems Settings ................................................................................. 68
11.7.1 Editing the time and date ................................................................ 68
11.7.2 Changing the indicator light............................................................. 68
11.7.3 Changing the menu language ......................................................... 69
11.7.4 System test ..................................................................................... 69
11.7.5 System information ......................................................................... 70
11.7.6 System Reset .................................................................................. 70
11.8 Unit selection ....................................................................................... 71
11.9 Calibration ........................................................................................... 72
11.9.1 Flow-Offset ...................................................................................... 72
11.9.2 Matching the Pt100 ......................................................................... 72
11.9.3 Pt100 Offset .................................................................................... 72
11.9.4 Calibration of analogue outputs ...................................................... 73
11.9.5 Parameterization of a flow velocity characteristic ............................ 73
11.10 Miscellaneous Parameters .................................................................. 75
11.10.1 Damping & Burnout ......................................................................... 75
11.10.2 Cut off Flow ..................................................................................... 76
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11.10.3 Zero ................................................................................................ 76
11.10.4 The totalizer (counters) ................................................................... 76
11.10.5 Sensor distance ................................ .............................................. 78
12 Additional information about the hardware ............................................... 79
12.1 Hardware and Software Reset ............................................................. 79
12.2 Data export and import ........................................................................ 80
12.3 Parameterization of the deltawaveC-F pulse output hardware ............ 81
12.3.1 Operating mode 1: High Side (PNP-Switch) ................................... 82
12.3.2 Operating mode 2: LOW Side (NPN-Switch) ................................. 83
12.3.3 Operation Mode Push-Pull .............................................................. 84
12.4 RS232 / RS485 Interfaces ................................................................... 85
13 Tips and Tricks ......................................................................................... 87
13.1 Measuring unknown fluids ................................................................... 88
14 Troubleshooting ........................................................................................ 90
14.1 The Oscilloscope Window ................................................................... 91
14.2 Signal analysis ..................................................................................... 92
14.2.1 Signal-to-noise ratio (SNR) ............................................................. 93
14.2.2 Signal sharpness ............................................................................ 95
14.2.3 Signal decoupling on small pipelines .............................................. 96
14.2.4 The Auto window function / AFC-Technology ................................. 97
14.3 The diagnose window of the deltawaveC-F/P ...................................... 99
14.4 Integrated sensor test function........................................................... 100
14.5 What to do if the pipe is not fully filled? .............................................. 101
14.6 Checklist ............................................................................................ 102
Appendix A – Material data ................................ ................................................... 105
Appendix B – Technical data ................................................................................ 108
Appendix C – Modbus register overview .............................................................. 110
Appendix D – Transducer type overview .............................................................. 112
Appendix E – Mounting equipment and accessories ............................................ 114
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5 systec Controls Mess- und Regeltechnik GmbH
1 Preamble
Welcome to the team of deltawaveC-F/P users and many thanks for using
an ultrasonic clamp-on flowmeter from systec Controls GmbH Germany.
deltawaveC-F/P was developed based on the KISS principle – “keep it safe
and simple”.
That means maximum user friendliness paired with optimal and accurate
measurements.
Our aim is to fulfil these aspirations both now and in the future. Our
strength lies in continually improving and optimising our products and we
want you to be part of this.
deltawaveC-F/P is an important product for us and not just one product on
a long list of others.
Thanks to your competent and constructive suggestions you have helped
to co-create deltawaveC and contribute to its success.
Please don´t hesitate to share your expert knowledge about deltawaveCF/P with us.
We wish you all the best and great success with using deltawaveCF/P!
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2 About this manual
You don't have much time for reading? Use the beacon!
Next to the chapters you will find red, orange or green dots. They will help
you to find a quick introduction to the deltawaveC-F/P
Newcomer?
You have never worked with an ultrasonic meter before?
Start at the first chapter. You will receive a step-by-step introduction to
ultrasonic measuring technology.
Advanced?
You have occasionally used ultrasonic measuring equipment?
Start with chapter 10.1.3 "Quick setup"
Start with the chapters that are marked with an orange spot. You may also
want to continue reading the chapters with the green spot.
Professional?
You already have professional knowledge of ultrasonic measuring
systems?
Start with the deltawaveC-F Getting Started (separate attachment)
You may also want to read the green dot chapters
The fields identified with an exclamation mark contain important
information that relates to the basic data and operation of the
device.
The fields identified with the “i“ contain supplementary and helpful
information.
The instruction manual describes the function of both deltawaveC-P and
deltawaveC-F in 1-channel and 2-channel version. In addition to the chapters
you will find the corresponding pictograms. This indicates which of the
devices the chapter applies to.
deltawaveC-P
portable deltawaveC (1 Channel)
deltawaveC-F
stationary deltawaveC
1CH = 1 Channel; 2CH = 2 Channel
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3 deltawaveC-F/P & components
deltawaveC-F/P key points:
deltawaveC-F/P is a clamp-on ultrasonic flow meter for liquids in
completely filled pipelines.
deltawaveC-F/P works based on the transit time method.
deltawaveC-F/P provides heat measurement by default. Clamp-on Pt100
temperature sensors are available as an optional.
The power is supplied via integrated AC-power supply. For deltawaveC-F
DC-power supply is available.
The device supports measurements on pipelines with diameters in the
range DN10 to DN6000 (depending on the sensor used)
Temperature range (fluid): –40°C to +150°C (equates the temperature
range of the clamp-on ultrasound transducers)
deltawaveC-F/P is equipped with an electrically isolated relay output, as
well as 4 to 20 mA current and impulse outputs that can be operated in
active and passive mode.
The stationary deltawaveC-F can optionally be equipped with an RS232 or
RS485 interface card as well as with two additional analogue inputs.
3.1 Approvals / EMC
deltawaveC-F/P is compliant with the following European
Directives and Standards:
2014/35/EU Low voltage directive
2014/30/EU Electromagnetic compatibility
Inspection specifications:
EN 55011 (2011-04)
EN 61000-4-2 (2009-12)
EN 61000-4-3 (2011-04)
EN 61000-4-4 (2013-04)
EN 61000-4-5 (2015-03)
EN 61000-4-6 (2014-08)
EN 61000-4-8 (2010-11)
EN 61000-4-11 (2005-02)
Inspection requests:
EN 61000-6-1 (2016-05)
EN 61000-6-3 (2011-09)
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3.2 Scope of delivery deltawaveC-F / P basic package
deltawaveC-F
deltawaveC-P
deltawaveC-F & ultrasonic transducers
deltawaveC-P hard-shell case
deltawaveC-F flow transmitter
Ultrasonic transducers incl.
signal cables (cable length
according to order)
Spacer bar for transducers,
except for FW05
Mounting belt – stainless steel
Quick start Guide
CD with manual
Acoustic coupling pads
Hard-shell case
deltawaveC-P flow transmitter
Plug-in power adapter, including
an IEC appliance power cable
RG 58 connector cable for
transducer
Ultrasonic transducer (as
ordered by the customer)
Mounting material and spacer
bar for transducers
Cable for 4mA to 20mA analogue
output (Mini DIN, alligator clips)
Quick start Guide
CD with Manual
Ultrasonic coupling grease
Other ultrasonic transducers for smaller or larger pipe dimensions, as well
as clamp-on temperature sensors, are available on separate order.
Every deltawaveC-F can be retrofitted with a serial interface board
(optional). It can be connected either to an RS232 serial interface board or
to a RS485 interface.
You can reach your personal contact partner on the Internet at
www.systec-controls.de, or at the phone number +49 (0)89 80 90 60.
An overview of accessories and available transducer can be found in the
appendix.
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3.3 Transducer
Figure 1: deltawaveC-F/P – measuring converter and mounted ultrasound transducer;
left: deltawaveC-F, right: deltawaveC-P
Your deltawaveC-F / P essentially consist of the ultrasonic transducers mounted on
your pipeline and the transmitter. The transmitter performs the signal processing
and provides the user with the measurement results. The ultrasonic transducers
transform the electrical energy into kinetic energy (acoustic wave). The ultrasonic
transducer can also receive acoustic waves and convert these into electrical
energy. An overview of the available converters can be found in the appendix.
The ultrasonic transducers will be mounted on the pipeline, they generate and
receive the ultrasonic signals, by means of which flow rate will calculated in the
transmitter.
As a result of the measuring principle, each transmitter is equipped with a
pair of ultrasonic transducers (A & B). Make sure ultrasonic transducers are
aligned with the direction of flow. Pay attention with the deltawaveC-F
(screw terminals), the loop has to be at the correct position and correct
polarity:
( + ) = red cable (core)
( – ) = black cable (shield)
UP-Transducer (upstream positioned transducer):
The ultrasound transducer, which the flow passes first, is connected at the UPcontacts.
DOWN-Transducer (downstream positioned transducer):
The ultrasound transducer, which the flow passes second, is connected at the
DOWN-contacts.
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3.4 Safety instructions
The operating temperature of the transmitter from -20°C to 60°C must
not be exceeded!
The ultrasonic sensors are sensitive to strong mechanical impacts
(irreparable damage possible)!
The transmitter and ultrasound transducers are generally not approved
for operation in potentially explosive atmospheres (request documents
for ATEX equipment).
The ultrasonic sensors must not exceed the specified operating
temperatures.
3.5 Important instructions for the use of
deltawaveC-P
The plug-in power supply is only suitable for indoor use! In the case of mechanical
or electrical damage to the plug-in power supply unit or the 230V power supply
cable, these must be completely replaced!
DeltawaveC-P is equipped with a nickel metal hydride battery (NiMH, 2300mAh).
This battery power is sufficient for approximately 5 hours of network-independent
operation.
To increase the battery life time, we recommend the following:
Charge and discharge the battery 3 times completely as soon as you have received
your deltawaveC-P.
If the deltawaveC-P is not used for a long time, recharge the battery at
least once every 3 ... 6 months.
The deltawaveC-P is equipped with a deep discharge protection. A pop-up
message informs you before the device switches off automatically.
To avoid unnecessary stress to the battery avoid connecting the
deltawaveC-P to a power supply if it is already charged completely.
deltawaveC-P is equipped with a quick-charge function. The quick-charge
function is automatically activated for 20 minutes after deltawaveC-P is
connected to the power supply. This allows for quick instant operation of
the device.
General information about the charge states:
Charging
50-100%
25-49%
10-25%
<10%
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The exclamation point in the battery indicator appears if the charge is too
low, or if deltawaveC-P is busy determining the current charge status.
Determining the charge level might take up to one minute.
If the exclamation mark persists, the battery actually has a capacity <10%.
If "Err" appears in front of the battery symbol and "x" in the battery symbol,
this means that the battery is defective or there is a fault in the charging
circuit. If you restart deltawaveC-P three times and the error message
persists, please contact systec Controls.
4 Measuring principle
Measuring principle: Ultrasonic transit time difference method (Clamp-On)
For this purpose two ultrasonic transducers are mounted on the pipeline from
outside and connected to the evaluation electronics.
The ultrasonic transducers work alternately as transmitters and receivers and send
ultrasonic signals at each other. These signals are accelerated or decelerated by
the medium flow. The resulting difference in the two signal propagation times is
proportional to the flow rate and is used together with the pipeline geometry for the
precise calculation of the flow rate.
Signal evaluation by means of cross-correlation:
The signal processing operates on the basis of a cross-correlation-based method,
which enables signal detection even at a low signal-to-noise ratio. On the basis of
the high-quality signal evaluation, measurements with gas input or solid load of the
medium are also possible within certain limits.
Calculation of the flow velocity [m/s]:
Calculation of the volume flow:
x
4cos2
)(
2
Re
12
D
k
tt
t
LQ
Re
12
cos2
)(
k
tt
t
Lv
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Integrated Reynolds-compensation (kRe):
The transit time difference method provides to determine the mean flow velocity
along the measuring path. The mean flow velocity over the tube cross-section can
be determined by means of a compensation factor which is dependent on the
Reynolds number.
The Reynolds number is determined iteratively from the current flow rate, the pipe
diameter and the kinematic viscosity of the fluid. For fluids of the device-internal
material database the data is provided.
The configuration of a user-defined medium is possible. For this purpose, the sound
velocity (can be practically determined by iterative approximation, see 13.2) and the
kinematic viscosity of the medium must be parameterized. The input of density and
heat capacity is additionally required for determining the heat quantity.
Re… Reynolds number,
v… flow velocity,
D… diameter,
ρ… density,
µ… dynamic viscosity,
υ… kinematic viscosity,
Integrated temperature compensation / Automatic Fluid Control (AFC):
Changes to the sound velocity of the liquid (temperature-dependent or when the
medium changes) cause changes of signal path angles and path length. These
deviations from the ideal path and the resulting measurement uncertainties are
compensated automatically by a correction factor (qp factor) determined by
deltawaveC-F / P without mechanical displacement of the transducers.
Standard:
The basis for the calculation is the VDI/VDE directive 2642: "ULTRASONIC FOWRATE MEASUREMENT OF FLUIDS IN PIPES UNDER CAPACITY FLOW
CONDITIONS" (12/1996)
DvDv
Re
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4.1 2-channel device applications
The deltawaveC-F 2-channel transmitter enables the realization of exceptional
measurement requirements for special applications. These are briefly described
below.
Two measuring paths can be operated separately at two different measuring points.
In addition to the separate results of measuring points (CH1 or CH2), the sum, the
difference as well as the mean value of both measuring paths are provided
additionally (CH1 + CH2, CH1 - CH2, (CH1 + CH2) / 2).
The mean value calculation is intended in particular for the use of both measuring
paths at one measuring point. This utilization makes it possible to increase the
accuracy and to reduce the effects of cross currents.
The heat quantity determination is limited to the use of two measuring
paths at one measuring point (only one pair of Pt100 can be connected).
The calculation is performed only for (CH1 + CH2) / 2.
A separate calculation only for CH1 and/or CH2 is not provided.
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5 deltawaveC-F/P Interfaces
5.1 Overview deltawaveC-P
Term
Description
1
UP/ DWN
BNC-Inputs for ultrasonic transducer
2
Relays/
Impulse
Mini-DIN-4 connectors output: Relay connection (passive, potential-free);
Digital output (open collector: 20, 40, 60 ms square pulses)
3
T1/T2
Mini-DIN-6 connectors: 1 pair 3-conductor Pt100 (heat measurement):
4
Analog Out
2 Analogue outputs: 4…20mA signal, 24VDC, active (optional passive)
from CTRL 2.1 according to Namur NE43 (3.8-20.5 mA)
5
RESET
Hardware-Reset (Restart of the system)
6
USB
USB Interface (Mini-USB Type B), access to the integrated SD memory card
Windows XP or later versions detect the SD Card as mass storage medium
7
Power
Plug-in power: 19 V/DC, 3,42 A
Power
18,5 VDC
USB
Down
Up
T1/T2
Relays/Impulse
Analog Out
deltawaveC
Reset
1
4 3 5
6
7
2
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5.2 Overview deltawaveC-F
The overview of the connection area and the terminal diagram corresponds
to the connector board V3.0 (double-pole terminals with additional
analogue inputs). Documentation for older versions can be requested.
Term
Connection
Description
1
UP1
input for ultrasonic transducer measurement path 1
( + ) = red cable (core); ( – ) = black cable (shield)
DWN1
UP2
input for ultrasonic transducer measurement path 2
Only 2-channel transmitter
DWN2
2
RS232 /
RS485
optional + retrofitted (Digital Interface board X1 & X2)
Data transmission via serial communication or Modbus
3
PT100 – 1
(T
input
)
1 pair 3-conductor Pt100 (heat measurement)
W terminals: Sense lines (cables of the same polarity / colour)
R-Terminal: GND cable (different colour cable).
For 3-wire Pt100, bridging the sense connections.
PT100 – 2
T
output
4
REL
Relay connection, passive, potential-free
5
ANA 1 OUT
ANA 2 OUT
Retrofitting requires CTRL-Board V2.2
Analogue inputs: 4 ... 20mA Unit signal, 24VDC, active (optional passive)
6
ANA 1 OUT
ANA 2 OUT
Analogue inputs: 4 ... 20mA Unit signal, 24VDC, active (optional passive)
from CTRL 2.1 according to Namur NE43 (3.8-20.5 mA)
7
IMP 1
IMP 2
Digital output (open collector: 20, 40, 60 ms square pulses)
IMP2 Only 2-channel transmitter usable
8
RESET
Hardware-Reset (Restart of the system)
9
USB
USB Interface (Mini-USB Type B), access to the integrated SD memory card
Windows XP or later versions detect the SD Card as mass storage medium
10
DIP 1 DO
DIP 2 DO
DIP Switch for configuring IMP1 and IMP2
NPN, PNP, push-pull, active / passive
IMP2 Only 2-channel transmitter usable
11
PE N L1
V+ V-
Two power supply options available:
alternating current 90 ... 240 V / AC, direct current 18 ... 36 V / DC
1 2 3 4 5 6 7 8 9
10
11
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5.3 Connection notes
To access the deltawaveC-F cable space, please detach the cable both screws and
remove the cover plate:
Figure 2: Remove cover from cable compartment
Please always make sure to put the correct voltage to your deltawaveC-F.
Improper supply voltage might seriously damage the flow transmitter.
You can check the type of power supply at the name plate, printed on
right side of enclosure of flow transmitter.
All in- and outputs (except relay) have defined potential on the
internal devices ground. For potential free operation of the in- and
outputs additional hardware is needed (with galvanic isolation). With
the normal in- and output it is not possible!
The analogue in- and outputs are active ex works 24V/DC (could
be set in passive mode by systec controls)
The maximum permitted load of the relay is 45V, 0,25A
Table 1: Recommendations for cable contacts
Terminal designation
description
recommendation
X2
In-/
Output
Cross-section:
0,5 - 4,0 mm²
Diameter:
0,8 - 2,3 mm
Contact length:
8,0 mm
X5
Powersupply
Cross-section:
0,13 - 1,3 mm²
Diameter:
0,4 - 1,3 mm
Contact length:
6,0 mm
Figure 3: Cable assembly
Fastening screws on
cover (cross-slot).
insolation
stripped cable
length
cross section
diameter
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6 Operating
6.1 Control Buttons
Switches the device On and Off. To shut down
the device, press the button for duration of
approx. 3 seconds and then release it. No
function on deltawaveC-F
Switches the backlight On and Off
Multifunctional buttons: Activate the function
displayed beneath the button.
6.2 How to navigate
Use the corresponding multifunctional buttons:
Arrow buttons for navigation
Confirms your entry
Confirms your entries and
opens the next window
Returns you to the previous
window
Triggers the XYZ function
(variable, depending on the
application)
Increases the value
Reduces the value
No function
6.3 Select measurement channel
The operation of the 2-channel transmitter differs
from conventional operation only (in a large part)
through an additional selection of the relevant
channel / measuring path.
3
2
1
1
2
3
XYZ
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7 First Start
7.1 Basic settings, main menu, navigation
7.1.1 Adjustment of the display language
1. Plug in the device.
During the starting sequence please
press the multifunctional key next to the
section “SETUP”.
2. Press the button “SETUP
LANGUAGE“.
3. In the window choose the required
display language using the arrow keys.
Confirm your input by pressing “ENTER“.
Leave the menu with “SETUP”.
By setting the language you adjust the language used in the menus. The
language in the boxes next to the multifunctional keys remains most widely
unchanged.
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7.1.2 Navigation in main menu
After switching deltawaveC-F/P on and passing through the start screen,
the measuring window “Flow 1” will appear automatically after few seconds.
The measuring window “Flow 1” shows an overview of all necessary
information for the measurement of flow and heat quantity.
1. Select “Setup“.
If the required window does not appear
after pressing “Setup“, please check if the
password function is deactivated.
2. If you can see this window, please
choose “COMPL” Setup“.
3. You are in the main menu now. From
this menu all necessary functions of
the device can be selected.
4. To return to the measuring window
please proceed as follows:
Choose “ESC” -> in the following window
please select “MEAS”.
Now you have become acquainted with the basic operation of your deltawaveC-FP.
There is a trick to reach the main menu even faster after switching the
device on: select “SETUP” during the start sequence right after switching
your deltawaveC-F on. In the following window choose “COMPL” SETUP”.
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7.1.3 Setting time and date
Having chosen the language for the menu you are in the main menu of the device.
1. Select the menu item (7) System
Settings using the arrow key.
2. In the following window choose menu
item (1) Time and Date.
3. By using the arrow keys the position can
be changed, by using +/- the value can be
adjusted. Please enter the time in the
following format:
Hour(hh) : minute(mm) : second(ss)
Afterwards, please enter the date in the
following format:
Day (dd) : Month (mm) : Year (yy)
4. Subsequently, press “ENTER“ to
confirm your input and return to the system
settings.
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8 Preparing for measurement deltawaveC-F/P
Set-up your flow measurement in 5 steps
1. Choose suitable mounting position for your transducers
2. Parameterize your flow transmitter
3. Mount ultrasonic transducers onto your pipe
4. Set zero point (if possible)
5. Start your flow measurement
8.1 Preparation of the measurement /
installation location
8.1.1 Inlet and outlet distances
The selection of the mounting location has a considerable influence on the quality of
the measurement. Especially the inlet and outlet distance. Please consider the
recommendations in the table below.
The letter "D" stands for the pipe diameter.
Classification
Upstream side
Downstream side
90° bend
Tee
Diffuser
deltawaveC-F/P
Manual
22 systec Controls Mess- und Regeltechnik GmbH
Classification
Upstream side
Downstream side
Reducer
Control valves
Pump
The distance “L” is defined as the distance from a fitting (e.g. a 90° bend) to the
middle of the position of the ultrasonic transducers.
Example: 90° bend (at upstream side) at the inlet, 90° bend (at downstream side) in
the outlet.
Diameter of the pipe: 110 mm
Recommendation according to the chart.
Running-in distance: 10D inlet = 10 x 110 mm = 1100 mm
Running-out distance: 5D outlet = 5 x 110 mm = 550 mm
What happens if the recommended inlet and outlet sections cannot be
complied with?
With simple pipe bends or T-pieces a reduction of inlet or outlet distances leads to a
greater uncertainty of measurement. The closer to the fitting the transducers are
mounted, the greater the measurement error will be.
With higher velocities of flow a shortened inlet section can also lead to lasting
disturbance of the flow profile which can induce a measurement failure. If there is a
temporary measurement failure and there is no possibility to change the mounting
position of the ultrasonic transducers, then the recommendation is to use the next
higher ultrasonic transducer type even with small pipe sizes:
F10 Transducer from DN32…DN200
F05 Transducer from DN200
Pumps or flaps/valves produce permanent disturbances of the flow profile, which are
not improved by switching to a different transducer type. In this case, the
recommended inlet/outlet distances should be adhered to consistently.
pump
back- pressure Vale
stop valve
deltawaveC-F/P
Manual
23 systec Controls Mess- und Regeltechnik GmbH
8.1.2 Basic principles for ultrasonic transducer assembly
The pipe always has to be completely filled at the mounting positions
of the ultrasonic transducers!
Measurement of partially filled pipes is not possible!
The ultrasonic transducers can be mounted vertically or horizontally or in any other
position. This is conditional on compliance with the possible mounting positions
shown below:
Figure 4: Preferable mounting positions for ultrasonic transducers (1)
8.1.3 Ultrasonic sensor Mounting on horizontal pipelines
On horizontal piping, it is recommended to mount the transducer with an offset of
approx. +/-45% to the horizontal plane. This is based on the fact that there is a risk
of the accumulation of bubbles in the upper section and sedimentation in the lower
section of the pipe.
Figure 5: Preferable mounting positions for ultrasonic transducers (2)
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Manual
24 systec Controls Mess- und Regeltechnik GmbH
Note on deposits in the pipeline, e.g. Lime:
The flow rate calculation of the deltawaveC-F / P is based on the following formula.
The red-marked term can be seen that the deltawaveC-F/P the entire pipe crosssection includes in the calculation. Your deltawaveC-F/P calculates the pipe crosssection based on the parameterized values from your tube circumference or tube
diameter and wall thickness. If lime scale deposits occur within the pipeline, they
reduce the measurable cross-section through which the fluid flows. This will add an
additional measurement uncertainty.
Especially if the pipe is unknown and/or the documentation of the
application is missing, measuring the thickness of the pipe wall can be
reasonable. In this case, systec Controls offers you the precise pipe wall
thickness measuring device deltawaveC-WD.
8.1.4 Ultrasonic transducer on uneven surfaces
Avoid mounting the sensors on uneven surfaces such as welds or deformations.
For pipes with thick and uneven protective paint, remove it as far as possible at the
points on which the ultrasonic transducers are mounted.
Figure 6: Preferable mounting positions for ultrasonic transducers (3)
welded joint
welded joint
welded joint outside
welded joint in measurement area
welded joint outside
welded joint partly in measurement area
4cos2
)(
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12
D
k
tt
t
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deltawaveC-F/P
Manual
25 systec Controls Mess- und Regeltechnik GmbH
8.2 Fundamentals of parameterization
The Parameterization chapter defines the input of all data that is necessary for flow
measurement.
1. „QUICK SETUP“: The Quick Setup guide offers step-by-step instructions on the
essential tasks you have to complete for deltawaveC-F/P parameterization. This
Quick Setup is quite sufficient for handling most applications and gets you started
with fast and efficient parameterization in no time at all.
2. „CMPL SETUP“: The complete setup function enables access to all options and
expert settings. Here, you can also directly access individual parameters via the
main menu.
What needs to be parameterized?
1. The pipe's outer diameter or circumference.
2. The wall thickness of the pipe. The material and thickness of the pipe
lining, if such lining exits.
3. The pipe material
4. The medium
5. The type of ultrasonic transducers
6. The mounting mode for the ultrasonic transducers
Ultrasonic measurement is based on the signal transit time process. The
ultrasonic signals penetrate the piping and the medium. In order to
calculate the signal transit time, each medium, piping material and existing
lining will be assigned a sonic speed value, as well as the pipe diameter or
circumference value.
The deltawaveC-F/P has stored tables in which the sound velocities of
materials and media are stored. If the material or medium is not listed in the
tables, its sound velocity must be entered manually. At the end of this
manual you will find tables with additional sound velocities for different
substances.
deltawaveC-F/P
Manual
26 systec Controls Mess- und Regeltechnik GmbH
8.3 Parameterization with the Quick Setup
How to access the parameterization dialog:
After power on: Select „Setup“ „Quick Setup“
In the primary measuring window "Flow 1": Select "Setup" "Quick "Setup".
1
Specify whether to enter the pipe circumference or outer
diameter:
or
Enter the outside diameter
Enter the diameter
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Manual
27 systec Controls Mess- und Regeltechnik GmbH
OR
Enter the pipe's wall thickness:
Choose pipe material:
Choose the pipe material Enter the sonic speed
from the database from the pipe material
Database from: manually:
It is advisable to use a wall thickness meter if you do not
know this parameter.
2
3
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28 systec Controls Mess- und Regeltechnik GmbH
OR
Does the pipe have a Coating
NO
Enter the thickness of the YES
pipe
Select the database,
or user input if material
is not listed in the database
4
5
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29 systec Controls Mess- und Regeltechnik GmbH
Select the medium:
5
Select the database, for
coating material
Enter the coating sonic
speed of the material
OR
Select the fluid, from the
database
Enter the fluid sonic
speed manually
OR
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30 systec Controls Mess- und Regeltechnik GmbH
Enter the kinematic
viscosity of the
medium:
Enter the thermal
capacity of the
medium
Enter the density of
the medium
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