Type 8098
FLOWave

Concentration measurement

Supplement to Operating Instructions

We reserve the right to make technical changes without notice.
© Bürkert Werke GmbH & Co. KG, 2024
Operating Instructions 2405/00 00574984 / Original ENType 8098
Table of contents

TABLE OF CONTENTS
1 About these instructions............................................................................................................................ 4
1.1

Document validity ............................................................................................................................. 4

1.2

Manufacturer..................................................................................................................................... 4

1.3

Symbols ............................................................................................................................................ 4

2 Safety .......................................................................................................................................................... 6
2.1

Intended use ..................................................................................................................................... 6

3 Product description ................................................................................................................................... 7
4 Setting of the concentration measurement .............................................................................................. 84.1

Default settings ................................................................................................................................. 84.2

Giving a user-defined name to the concentration value ................................................................... 84.3

Selecting the concentration model ................................................................................................... 84.4

Setting the damping of the concentration values ............................................................................. 94.5

Setting the monitoring of the concentration ................................................................................... 104.6

Setting the limits and the hysteresis of the concentration.............................................................. 104.7

Resetting the limits and the hysteresis of the concentration to their factory settings.................... 104.8

Resetting the values of all the concentration parameters to their factory settings ........................ 115 Original gravity measurement.................................................................................................................. 125.1

Conditions for accurate and stable measurement.......................................................................... 125.2

Use cases in a brewing process ..................................................................................................... 125.2.1 Lauter tun outlet................................................................................................................. 125.2.2 Kettle outlet........................................................................................................................ 135.2.3 Wort chiller outlet............................................................................................................... 135.3

Adjustment to specific wort ............................................................................................................ 145.3.1 Adjusting the concentration slope via a wizard ................................................................. 14
5.3.2 Adjusting the concentration offset via a wizard................................................................. 15
5.3.3 Setting the concentration slope manually ......................................................................... 15
5.3.4 Setting the concentration offset manually ......................................................................... 156 Appendix................................................................................................................................................... 166.1

Menu structure................................................................................................................................ 163

Type 8098
About these instructions

1ABOUT THESE INSTRUCTIONS

These instructions are supplemental to the operating instructions. The operating instructions for the device
must be followed to ensure safe use of the device for its intended purpose.

DANGER!
Risk of injury due to incorrect use of the device
Please read the operating instructions thoroughly prior to using and operating the device.
Operating instructions and further product-related information at country.burkert.com > Type number (enter in search mask).

1.1

Document validity

The document is valid for any FLOWave device equipped with a concentration measurement. Concentration measurements and settings will automatically appear for equipped devices.

1.2

Manufacturer

Bürkert Fluid Control Systems
Christian-Bürkert-Str. 13−17
D-74653 IngelfingenThe contact addresses are available at country.burkert.com in the menu "Contact".

1.3

Symbols
DANGER!

Warns of a danger that leads to death or serious injuries.

WARNING!
Warns of a danger that can lead to death or serious injuries.

CAUTION!
Warns of a danger that can lead to minor injuries.

NOTICE!
Warns of property damage on the product or the installation.
Indicates important additional information, tips and recommendations.

Refers to information in this document or in other documents.
Indicates a step to be carried out.
4Type 8098
About these instructionsIndicates a result.
Menü Indicates a software user-interface text.

5Type 8098
Safety2SAFETY

2.1

Intended use

Prerequisites for safe and trouble-free operation are proper transport, storage, installation, commissioning,operation and maintenance.
The instructions are part of the device. The device is intended exclusively for use within the scope of theseinstructions. Uses of the device that are not described in these instructions, the contractual documents or
the type label can lead to severe personal injury or death, damage to the device or property and dangers forthe surrounding area or the environment.
Several use cases can be covered and are explained in this document. Using the available measurements
outside of their intended use case will result in inaccuracies or instability.

DANGER!
Risk of injury due to incorrect use of the device
Please read the operating instructions thoroughly prior to using and operating the device.
Operating instructions and further product-related information at country.burkert.com > Type number (enter in search mask).

6

Type 8098
Product description

3

PRODUCT DESCRIPTION

Concentration measurement for FLOWave 8098 is an optional feature that allows continuous measurementof the concentration of a liquid. If ordered, concentration measurement will be enabled during manufacturing with the requested concentration model.

DANGER!
Risk of injury due to incorrect use of the device
Please read the operating instructions thoroughly prior to using and operating the device.
Operating instructions and further product-related information at country.burkert.com > Type number (enter in search mask).

Volume30.1

View 2CONFIGURATION

View 1 of 4l/min

Fig. 1: Overview of the user interface

To switch between views, from the left to the right and vice versa.
The concentration value can be shown in view 2 and 3.

7

Type 8098
Setting of the concentration
measurement

4

SETTING OF THE CONCENTRATIONMEASUREMENT

Risk of injury or material damage when working on the device or system.
Read and observe the chapter Safety [} 6] before working on the device or system.

4.1

Default settings

FLOWave S
By default, the outputs are configured as follows:
OutputConfiguration Marking on
the device

Output 1 Digital(Pin 5-6)

1AO/DOInternal designation (Commu- Modenicator)
Output. DO3 - Marked 1AO/
DO -/+ on the device

Mass flow (Pulse) in case ofdevice with mass flow activated.
Volume flow (Pulse) in all othercases.

Output 2 Analogue(Pin 7-8)

2AO/DO

Output. AO1 - Marked 2AO/
DO -/+ on the device

Concentration

Tab. 1: Default settings FLOWave S

FLOWave L
By default, output 3 is configured as analogue output and with concentration as value.

4.2

Giving a user-defined name to the concentration
value
By default, the names are Concentration 1 and Concentration 2.

The name is used to identify the process value in the user-defined views and in all the menus where theprocess value is displayed.
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Value
name
Enter the name. The name can have up to 19 characters.
Click on Apply to save the changes.

4.3

Selecting the concentration model

Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Concentration model8

Type 8098
Setting of the concentration
measurement

The Current settings are displayed.
Click on Next.
Choose the expected concentration model from the list.
Click on Next.
The New settings are displayed.
Click on Finish to save the changes.

4.4

Setting the damping of the concentration values
By default the liquid concentration damping is set to medium.

The damping makes it possible to damp the fluctuations of the measured values of the liquid concentration:
On the display.
On the outputs. The damping of the analog output is in addition to the damping of the liquid concentration.
The damping is not applied to the new measured value, if the 2 following conditions are met:
A Low, Medium or High damping level is active.
The measured value changes by more than 30% of full scale.
The Refresh time(in Menu SAW sensor), has no effect on the damping of the measured values.
Damping level

Response time

None0sThe damping of a liquid concentration value is inactive.

Low1s

Medium10 sHigh30 s

SpecialUser-defined response time.
Set Response time
Set Jump thresholdTab. 2: Response times (10 %...90 %) of the damping levels for the liquid concentration measurements

Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Damping
The Current settings are displayed.
Choose a damping level from the list.
If Special is selected:
Set the value of the Response time.
Choose if the Jump threshold is enabled or disabled.
If the Jump threshold is enabled, set the value.
The New settings are displayed.
Click on Finish to save the changes.
9Type 8098
Setting of the concentration
measurement

4.5

Setting the monitoring of the concentration
By default, the monitoring of the liquid concentration and the diagnostics are all disabled.

Because of a malfunction in the process, the measured liquid concentration value can be too high or toolow.
A monitored value can be:in the normal operating range
in the warning range
in the error range
4 limit values are possible to be set: 2 error limits and 2 warning limits. Refer to Setting the limits and thehysteresis of the concentration [} 10]
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Limits >ActiveSelect Yes.
The monitoring of the liquid concentration is active and the device status will change depending on
the limits that have been set.
Or select No.
The monitoring of the liquid concentration is inactive.

4.6

Setting the limits and the hysteresis of theconcentration

The reaction time depends on the hysteresis value and if the monitored value increases or decreases.
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Limits >Settings
The Current settings are displayed.
Set Error limit high.
Set Error limit low.
Set Warning limit high.
Set Warning limit low.
Set Hysteresis.
The New settings are displayed.
Click on Finish to save the changes.

4.710

Resetting the limits and the hysteresis of theconcentration to their factory settings

Parameter

Default value

Error limit high100%Type 8098
Setting of the concentration
measurement

Parameter

Default value

Error limit low−0.01 %

Warning limit high100 %Warning limit low−0.01 %

Hysteresis

0.0 %To reset the default values, do the following:
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Limits >Reset to factory settings
Click on Next.
Click on Finish to save the changes.
The values are reset.

4.8

Resetting the values of all the concentration
parameters to their factory settings

To reset all the default values, do the following:
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Parameter > Add. meas. values > Concentration 1 or Concentration 2 > Reset tofactory settings
Click on Next.
Click on Finish to save the changes.
All parameters of the selected liquid concentration are reset.

11Type 8098
Original gravity measurement

5

ORIGINAL GRAVITY MEASUREMENT

5.1

Conditions for accurate and stable measurement

To guarantee a correct measurement, it is important to respect the following guidelines:
Make sure that the acoustic transmission factor value is over 85%. Refer to the Operating Instructions
Type 8098.
Make sure that there are no bubbles in the liquid.
Do not install the device next to a heating element for the liquid.
Prevent sudden temperature changes.
Observe the temperature ranges for the measurement. Refer to the Operating Instructions Type 8098.

5.2

Use cases in a brewing process

The device enables inline and continuous measurement of the original gravity, simultaneously with the flow
rate, at the following 3 stages of the brewing process:
Lauter tun outlet
Kettle outlet
Wort chiller outlet

123

54

6

7Fig. 2: Brewing process

1 Roller mill

2 Mash mixer

3 Lauter tun

4 Kettle

5 Whirlpool separator

6 Wort chiller

7 Fermentation vessel
The measurement accuracy can change with deviations in the application parameters. Therefore, we recommend an adjustment with the respective parameters in these cases.

5.2.1

Lauter tun outlet

The following conditions are necessary to ensure stable and accurate measurement.

12Temperature

65-80 °C

Measurement range

0-25 °P

Measurement deviation (Factory calibration)+/- 0.5 °P

Repeatability+/- 0.2 °P

Resolution

0.01 °P

Type 8098
Original gravity measurement

5.2.2

Kettle outlet

The following conditions are necessary to ensure stable and accurate measurement.
Temperature

70-100 °C

Measurement range

8-25 °P

Measurement deviation (Factory calibration)+/- 0.5 °P

Repeatability+/- 0.2 °P

Resolution

0.01 °P

Avoid bubbles to ensure a stable and accurate measurement of the original gravity.

5.2.3Wort chiller outlet

The following conditions are necessary to ensure stable and accurate measurement.
Temperature

5-25 °C

Measurement range

8-25 °P

Measurement deviation (Factory calibration)+/- 0.5 °P

Repeatability+/- 0.2 °P

Resolution

0.01 °P

13

Type 8098
Original gravity measurement

5.3Adjustment to specific wort

The default concentration settings allow to measure the original gravity of worts used for Pilsners and lagers. For other worts than Pilsners and Lagers, it's recommended to perform an adjustment to obtain accurate concentration measurements.
The concentration adjustment uses a slope and an offset, according the following formula:Concentration = Slope x Raw Concentration + Offset
To perform a slope adjustment it is recommended to use a wort at the usual concentration of the process (for example 12 °P)
Needed equipment:
Reference meter
Communicator + büS USB key in case of FLOWave S with no display

5.3.1

Adjusting the concentration slope via a wizard

Make sure the liquid in the FLOWave is in similar conditions to the process conditions.
To get a correct result, the following conditions must be met during the adjustment :The liquid has to circulate.
The liquid temperature is stable.
The liquid concentration is stable.
The liquid is free of bubbles and the pipe is full.
During the calibration:
The status indicator changes to orange (NAMUR Mode Function check).
The NAMUR Mode Function check is active. The outputs react depending on your settings.
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Maintenance > Calibration > Add. meas. values > Concentration 1 or Concentration 2 > Slope > Teach-in by reference.
The Current settings are displayed.
Start the calibration.
The current measured value is displayed.
After 30 s of measurement, enter the reference measurement of the liquid inside the FLOWave.
If the calibration fails, a message is displayed. Refer to the Operating Instructions.
The new slope is displayed
Click on Next to save the changes.
Click on Finish to exit the wizard.

14

Type 8098
Original gravity measurement

5.3.2

Adjusting the concentration offset via a wizard

Optionally the concentration zero can be adjusted in water with an offset adjustment, for applications including low concentrations of wort.
Perform an offset adjustment in water or low concentration wort (for example 1 °P)
Perform a slope adjustment at usual concentration (for example 12 °P).
To get a correct result, the following conditions must be met during the adjustment :The liquid has to circulate.
The liquid temperature is stable.
The liquid concentration is stable.
The liquid is free of bubbles and the pipe is full.
During the calibration:
The status indicator changes to orange (NAMUR Mode Function check).
The NAMUR Mode Function check is active. The outputs react depending on your settings.
Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Maintenance > Calibration > Add. meas. values > Concentration 1 or Concentration 2 > Offset > Teach-in by reference.
The Current settings are displayed.
Start the calibration.
The current measured value is displayed.
After 30 s of measurement, enter the reference measurement of the liquid inside the FLOWave.
If the calibration fails, a message is displayed. Refer to the Operating Instructions.
The new offset is displayed.
Click on Next to save the changes.
Click on Finish to exit the wizard.
Continue with a slope adjustment with high wort concentration for best results. Refer to Adjusting theconcentration slope via a wizard [} 14]

5.3.3

Setting the concentration slope manually

Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Maintenance > Calibration > Add. meas. values > Concentration 1 or Concentration 2 > Slope > Enter value.
Enter the value.
Save the change by clicking on Finish.

5.3.4

Setting the concentration offset manually

Use the device display or connect the device to the Bürkert Communicator software.
Go to SAW sensor > Maintenance > Calibration > Add. meas. values > Concentration 1 or Concentration 2 > Offset > Enter value.
Enter the value.
Save the change by clicking on Finish.
15

Type 8098
Appendix

6

APPENDIX

6.1

Menu structure

Factory setting:Menu or function

Value or decription

Device> SAW sensor> Parameter> Add. meas. values

Differentiation factor, acoustic
transmission factor, concentrations> Concentration 1> Value nameConcentration 1> Concentration modelNone> Damping

NoneLowMedium
High> Special
Response time

1s

Jump threshold

EnabledDisabled

Jump threshold

1%> Limits> Settings
Error limit high100 %Error limit low−0,01 %

Warning limit high100 %Warning limit low−0,01 %

Hysteresis

0,00%> ActiveNoYes> Reset to factory settings> Concentration 216> Value nameConcentration 2> Concentration model

NoneType 8098
Appendix

Menu or function> Damping

Value or decription
NoneLow
MediumHigh> Special
Response time1s

Jump threshold

EnabledDisabled

Jump threshold

1%> Limits> Settings
Error limit high100 %Error limit low−0,01 %

Warning limit high100 %Warning limit low−0,01 %

Hysteresis

0,00%> ActiveNo
Yes> Reset to factory settings> Diagnostics> Device

Check device status> Output values

Overview of all measurement
values> Concentration 1> Concentration 2> Diagnostic events> Sensor> Status> Concentration 1 out of range None
FailureOut of specification
Maintenance required
On/Off17Type 8098
Appendix

Menu or function

Value or decription> Concentration 2 out of range NoneFailure
Out of specification
Maintenance required
On/Off> Limits> Add. meas. values

Differentiation factor, acoustictransmission factor, concentrations> Concentration 1> High value> Low value> Concentration 2> High value> Low value> Maintenance> Calibration

Device calibration for flow rate,
temperature, density, differentiation factor, acoustic transmission factor, concentrations> Add. meas. values

Differentiation factor, acoustictransmission factor, concentrations> Concentration 1> Offset> Enter value> Teach-in by reference> Slope> Enter value> Teach-in by reference> Reset to factory settings> Concentration 2> Offset> Enter value> Teach-in by reference> Slope18> Enter value

Type 8098
Appendix

Menu or function

Value or decription> Teach-in by reference> Reset to factory settings> Reset to factory settings
Tab. 3: Extract of menu tree

19