Systec Controls deltawaveCoG-F User manual

deltawaveCoG
Manual
1systec Controls Mess- und Regeltechnik GmbH 27.06.2023 V1.5
Manual
deltawaveCoG-F/P
Gas flow measurement
portable
stationary

deltawaveCoG
Manual
2systec Controls Mess- und Regeltechnik GmbH 27.06.2023 V1.5
Table of content
Table of content........................................................................................................2
1Preamble...........................................................................................................5
2deltawaveCoG & components...........................................................................6
2.1 Approvals / EMV....................................................................................6
2.2 Scope of delivery deltawaveCoG basic package...................................7
2.3 Transducer.............................................................................................8
2.4 Safety instructions .................................................................................8
2.5 Important instructions for the use of deltawaveCoG-P...........................9
3Measuring principle..........................................................................................10
4deltawaveCoG Interfaces ................................................................................11
4.1 Overview deltawaveCoG-P..................................................................11
4.2 Overview deltawaveCoG-F..................................................................12
4.3 Connection notes.................................................................................13
4.4 Bus module (optional)..........................................................................14
5Operating.........................................................................................................14
5.1 Control Buttons....................................................................................14
5.2 How to navigate...................................................................................14
6First Start.........................................................................................................15
6.1 Basic settings, main menu, navigation.................................................15
6.1.1 Adjustment of the display language ................................................15
6.1.2 Navigation in main menu ................................................................15
6.1.3 Setting time and date......................................................................17
7Preparing for measurement deltawaveCoG.....................................................17
7.1 Preparation of the measurement / installation location........................18
7.1.1 Inlet and outlet distances ................................................................18
7.1.2 Ultrasonic transducer on uneven surfaces......................................19
7.2 Fundamentals of parameterization ......................................................20
7.3 Parameterization with the Quick Setup................................................21
7.4 Sensor assembly / Sensor distance.....................................................22
7.4.1 Structure of ultrasonic transducers .................................................22
7.4.2 Mounting-Type................................................................................23
7.4.3 Selection of transducer types..........................................................23
7.4.4 Selection coupling media................................................................23
7.4.5 Transducer mounting......................................................................24
7.5 Alternative sensor distance..................................................................28
7.6 Zero Setting.........................................................................................28
8Signal optimisation ..........................................................................................30
8.1 Open signal optimisation ....................................................................30
8.2 Functionality Signal Optimisation.........................................................31
8.3 Gain-Optimization................................................................................31
8.4 Zero-Optimization................................................................................31

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9Measuring windows deltawaveCoG.................................................................32
9.1 Headline ..............................................................................................32
9.2 Measuring window „Flow 1“ .................................................................33
9.3 Measuring window "Flow 2“ .................................................................34
9.4 Password protection............................................................................35
10 The main menu (complete menu).............................................................36
10.1 Loading, saving and managing parameter data...................................36
10.2 The pipe parameters............................................................................38
10.3 The Fluid Setup ...................................................................................39
10.4 The Transducer Setup.........................................................................41
10.5 Parameterization of the inputs and outputs .........................................41
10.5.1 Parameterization of the 4-20mA outputs.........................................41
10.5.2 Parameterization of the relay..........................................................43
10.5.3 Parameterization of the pulse output ..............................................44
10.5.4 Pulse-Overflow-Error; IOE ..............................................................45
10.6 Data Transfer & Logger.......................................................................45
10.6.1 Modbus...........................................................................................45
10.6.2 The Data Logger.............................................................................46
10.6.2.1 Activation of the data logger..................................................47
10.6.2.2 Administration and structure of log data................................47
10.6.2.3 Starting a time-controlled data record....................................48
10.6.2.4 Cancelling a time-controlled data record...............................49
10.6.2.5 Quick-Logger.........................................................................50
10.7 System Settings...................................................................................51
10.7.1 Editing the time and date ................................................................51
10.7.2 Changing the indicator light.............................................................51
10.7.3 Changing the menu language.........................................................52
10.7.4 System test.....................................................................................52
10.7.5 System Reset..................................................................................54
10.7.6 Reference conditions......................................................................54
10.7.7 Calculation test ...............................................................................55
10.8 Unit selection.......................................................................................55
10.9 Calibration ...........................................................................................56
10.9.1 Flow-Offset......................................................................................56
10.9.2 PT100 Calibration...........................................................................56
10.9.3 Calibration of analogue outputs ......................................................57
10.9.4 Calibration of analogue inputs.........................................................57
10.10 Miscellaneous Parameters ..................................................................58
10.10.1 Cutoff und Burnout..........................................................................58
10.10.2 Damping..........................................................................................59
10.10.3 Zero ................................................................................................59
10.10.4 The totalizer (counters)...................................................................60
10.10.5 Pipe roughness...............................................................................61
10.10.6 Sensor test......................................................................................61
11 Additional information about the hardware...............................................63
11.1 Hardware and Software Reset.............................................................63

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11.2 Data export and import........................................................................64
12 Pulse outputs active/passive ....................................................................65
12.1 RS485 interface...................................................................................66
13 Fehleranalyse, Fehlerbehebung...............................................................67
13.1 The Oscilloscope Window ...................................................................68
13.2 Signal-to-noise ratio (SNR)..................................................................69
13.2.1 Signal sharpness ............................................................................70
13.2.2 Signal decoupling on small pipelines..............................................71
13.2.3 The Auto window function / AFC-Technology.................................72
13.3 The diagnosis window of the deltawaveCoG.......................................74
Appendix A –Material specifications ......................................................................75
Appendix B –Technical data..................................................................................76
Appendix C - Modbus register overview .................................................................78
Appendix D –Technical accessories......................................................................79

deltawaveCoG
Manual
5systec Controls Mess- und Regeltechnik GmbH 27.06.2023 V1.5
1 Preamble
Welcome to the team of deltawaveCoG users and many thanks for using an
ultrasonic clamp-on flowmeter from systec Controls GmbH Germany.
deltawaveCoG was developed based on the KISS principle –“keep it safe and
simple“.
That means maximum user friendliness paired with optimal and accurate
measurements.
The deltawaveCoG team has set itself the goal of meeting and maintaining this
demand. We take great pleasure in constantly optimising and developing the
product.
deltawaveCoG 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 deltawaveCoG and contribute to its success.
Please don´t hesitate to share your expert knowledge about deltawaveCoG with us.
We wish you all the best and great success with using deltawaveCoG!

deltawaveCoG
Manual
6systec Controls Mess- und Regeltechnik GmbH 27.06.2023 V1.5
2 deltawaveCoG & components
deltawaveCoG key points:
•deltawaveCoG is a clamp-on ultrasonic flow meter for measuring gases in
pipelines.
•deltawaveCoG works based on the transit time method.
•The power is supplied via integrated AC-power supply.
A DC-power supply is also available as an option.
•The device supports measurements on pipelines with diameters in the
range DN25 to DN700 (depending on the sensor used).
•Temperature range (gas): –40°C to +150°C (equates the temperature
range of the clamp-on ultrasound transducers).
•deltawaveCoG is equipped with an electrically isolated output (relay), as
well as 4 to 20 mA current (active and passive) and pulse outputs that can
be operated in active and passive mode (with deltawaveCoG universally
parameterizable).
•The stationary deltawaveCoG can optionally be equipped with a Modbus
(RS485) interface card.
2.1 Approvals / EMV
deltawaveCoG 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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2.2 Scope of delivery deltawaveCoG basic package
With a deltawaveCoG you always get:
- a flow transmitter
Transmitter for fixed installation
Transmitter for portable measurements
- a pair of ultrasonic transducers
- Necessary mounting material
Optionally, it is still possible to order:
- Pressure transducer for 4 –20 mA
- Temperature sensor for 4 –20 mA
- Clamp-on temperature sensor (3-wire PT100)

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Manual
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2.3 Transducer
Your deltawaveCoG 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 be calculated in the
transmitter.
Make sure ultrasonic transducers are aligned with the direction of flow. Pay
attention with the deltawaveCoG (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 UP-
contacts.
DOWN- Transducer (downstream positioned transducer):
The ultrasound transducer, which the flow passes second, is connected at the
DOWN-contacts.
2.4 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!
•Protect the transmitter from impacts.
•Avoid cable kinks on the sensor cables.
•Make sure that the power supply is suitable.
•The power supply unit of the deltawaveCoG-P is not protected against
moisture. Use it only in dry rooms.
•Before connecting the deltawaveCoG-F to your power supply, make
sure that it is deactivated (e.g. fuse off).

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Manual
9systec Controls Mess- und Regeltechnik GmbH 27.06.2023 V1.5
2.5 Important instructions for the use of deltawaveCoG-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!
deltawaveCoG-P is equipped with a lithium-ion battery (Li-Ion 6000 mAh). This
battery power is sufficient for approximately 22 hours of network-independent
operation.
➔If the deltawaveCoG-P is not used for a long time, recharge the battery at
least once every 3 ... 6 months.
➔The deltawaveCoG-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
deltawaveCoG-P to a power supply if it is already charged completely. A
permanent connection to the power supply unit in the case of long-term
measurements is possible, however.
deltawaveCoG-P is equipped with a quick-charge function. The function is
automatically activated after the deltawaveCoG-P is connected to the
power supply unit until a charge level of 80 % is reached.
This means that the unit can be operated again without connection to the
power supply within a very short time
General information about the charge states:
The exclamation point in the battery indicator appears if the charge is too
low, or if deltawaveCoG-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 "x" appears in the battery symbol, this means that the battery is defective
or there is a fault in the charging circuit. If the symbol is also displayed after
a restart of the deltawaveCoG- P, please contact systec Controls.
Charging
50-100%
25-49%
10-25%
<10%
x

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3 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 based on a cross-correlation-based method, which
enables signal detection even at a low signal-to-noise ratio.
Calculation of the flow velocity [m/s]:
Calculation of the volume flow:
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 (see chapter Fehler!
Verweisquelle konnte nicht gefunden werden.).
distance
Flow direction





=4cos2 )( 2
Re
12
D
k
tt t
LQ
Re
12 cos2)( k
tt t
Lv 


=


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Integrated temperature compensation / Automatic Fluid Control (AFC):
Changes to the sound velocity of the gas (due to pressure or temperature or when
changing the medium) 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
deltawaveCoG without mechanical displacement of the transducers.
4 deltawaveCoG Interfaces
4.1 Overview deltawaveCoG-P
Term
Description
1
UP/ DWN
BNC-Inputs for ultrasonic transducer
2
Relay/
Pulse
Mini-DIN-4 connectors output: Relay connection (passive, potential-free);
Digital output (open collector: 20, 40, 60, 100, 260, 500 ms square pulses)
3
T1/T2
Mini-DIN-6 connectors: 1 pair 3-conductor Pt100 (temperature
compensation):
4
Analogue
Out
2 Analogue outputs: 4…20mA signal, 24VDC, active (optional passive)
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: Automatic detection 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/Impuls
Analog Out
deltawaveC
Reset
1
4
3
5
6
7
2

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4.2 Overview deltawaveCoG-F
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
With deltawaveCoG only measurement path 1 available
DWN2
2
RS485
optional + retrofittable (plug-in board for pin headers)
Data transmission via Modbus
3
PT100 –1
Connection for 3-wire Pt100
W terminals: Sense lines (cables of the same polarity / colour)
R-Terminal: GND cable (different colour cable)
For 2-wire Pt100, bridging the sense connections
PT100 –2
4
REL
Relay connection, passive, potential-free
5
ANA 1 IN
ANA 2 IN
Analogue inputs: 4 ... 20mA Unit signal, 24VDC, active (optional passive)
6
ANA 1 OUT
ANA 2 OUT
2 Analogue outputs: 4…20mA signal, 24VDC, active (optional passive)
according to Namur NE43 (3.8-20.5 mA)
7
IMP 1
IMP 2
Digital Outputs: pulses (20, 40, 60, 100, 260, 500ms)
Only IMP1 available at deltawaveCoG
8
RESET
Hardware-Reset (Restart of the system)
9
USB
USB Interface (Mini-USB Type B), access to the integrated SD memory card
(Windows: Automatic detection as mass storage medium)
10
DIP 1 DO
DIP 2 DO
DIP Switch for configuring IMP1 and IMP2 active / passive
Only IMP1 available at deltawaveCoG
11
PE N L1
V+ V-
Two power supply options available:
alternating current 90 ... 240 V / AC, direct current 18 ... 36 V / DC
Active: O + (+); O - (-)
Passive: O + (-); O - (+)

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4.3 Connection notes
To access the deltawaveCoG-F cable space, please detach the four screws and
remove the cover plate:
Figure 1: Remove cover from cable compartment
Please always make sure to put the correct voltage to your deltawaveCoG.
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
description
recommendation
In-/
Output
Cross-section:
0,13 - 1,3 mm²
Diameter:
0,4 - 1,3 mm
Contact length:
6,0 mm
Power-
supply
Cross-section:
0,5 - 4,0 mm²
Diameter:
0,8 - 2,3 mm
Contact length:
8,0 mm
Figure 2: Cable assembly
Fastening screws on
cover (cross-slot).
isolation
stripped cable
length
cross section
diameter

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4.4 Bus module (optional)
A bus module (currently RS485 Modbus) is available for the bus connection of
deltawaveCoG, which can be optionally equipped. The bus module can also be
easily retrofitted.
5 Operating
5.1 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 deltawaveCoG-F.
Switches the backlight On and Off
Multifunctional buttons: Activate the function
displayed beneath the button.
5.2 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
1
2
3
1
2
3
XYZ

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6 First Start
6.1 Basic settings, main menu, navigation
6.1.1 Adjustment of the display language
1. Plug in the device
→During the starting sequence please
press the multifunctional key next to the
section “SETUP LANG.”.
2. In the window choose the required
display language using the arrow keys.
Confirm your input by pressing “ENTER“.
Leave the menu with „ESC“.
To change the language via the main menu, see Chapter10.7.3.
With the language setting, you change the language in the menus. The
language in the boxes next to the multifunction buttons remains largely
unchanged.
6.1.2 Navigation in main menu
After switching deltawaveCoG 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.

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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 deltawaveCoG.
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 deltawaveCoG on. In the following window choose “COMPL” SETUP“.

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6.1.3 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
Setup” 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 and date
according to the format displayed.
4. Subsequently, press “ENTER“ to
confirm your input and return to the system
settings..
7 Preparing for measurement deltawaveCoG
Set-up your flow measurement in 5 steps:
1) Choose suitable mounting position for your transducers
2) Parameterize your flow transmitter (Quick-Setup)
3) Mount ultrasonic transducers onto your pipe
4) Set zero point (if possible)
5) Start your flow measurement

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7.1 Preparation of the measurement / installation
location
7.1.1 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
Reducer
Control valves
Pump

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The inlet distance is defined as the distance from a fitting (e.g. a 90° bend) to the
middle of the position of the ultrasonic transducers. The outlet distance is defined as
the distance from middle of the position of the ultrasonic transducers to the next
disturbance point following in the direction of flow.
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: 10 D inlet = 10 x 110 mm = 1100 mm
Running-out distance: 5 D outlet = 5 x 110 mm = 550 mm
7.1.2 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 3: Ultrasonic transducer mounting / positioning
welded joint
welded joint
welded joint outside
welded joint in measurement area
welded joint outside
Welded joint partly in measurement area

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7.2 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 deltawaveCoG 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. „KOMPL 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 process pressure (pressure of the medium within the pipeline)
2. The process temperature (temperature of the medium inside the pipeline)
3. The pipe's outer diameter or circumference
4. The wall thickness of the pipe.
5. The pipe material
6. The gas
7. The type of ultrasonic transducers
Ultrasonic measurement is based on the signal transit time process. The
ultrasonic signals penetrate the piping and the gas. In order to calculate the
signal transit time, each gas and each piping material will be assigned a
sonic speed value, as well as the pipe diameter or circumference value.
deltawaveCoG 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.