Flowmax
44i
Ultrasonic flow
metering / dosing
device
Operating manual
BA 012E/FM44i/04.17
Valid starting from
Hardware V 2.1
Software V 1.29
Flowmax 44i General safety instructions
M I B 2
General safety instructions
Please always observe the following safety instructions!
Please pay attention to the safety instructions with the following pictograms and
signal words in these operating instructions:
IMPORTANT! indicates situations or cases
which, if not avoided, could result in
damage or failure of the Flowmax 44i
equipment.
WARNING! indicates general hazardous
situations or cases which, if not avoided,
could result in serious injury or death.
NOTICE! is used to lead users to helpful
information not related to personal injury.
Intended use
The flowmeter Flowmax 44i may only be used for measuring the flow of
pure, homogeneous liquids.
The Flowmax 44i is not intended for use in medical applications.
The volume flowmeter Flowmax 44i is built operationally safe in
accordance with the latest state of the art technologized developments and
industry standard EN 61010 regulations (corresponds to VDE 0411 “Safety
specifications for electrical measurement, control and laboratory devices”).
The manufacturer is not liable for any injury, damage or harm due to
inappropriate or unintended use or modifications of the flowmeter.
Conversions and/or changes to the flowmeter may only be made, if they are
expressly performed in accordance with the operating instructions in this
operating manual.
Personnel for installation, commissioning and operation
Assembly, electrical installation, commissioning and maintenance of
the flowmeter must be carried out by qualified, trained personnel. The
qualified personnel must have read and understood the operating
instructions in this operating manual and must follow the operating
instructions in this manual.
The installer has to ensure that the flow meter is correctly connected
according to the electrical connection diagrams in this operating
manual.
Serious injury or death from electric shock may occur if wiring,
installation, disassembly or remove of wires is performed while
electrical power is energized
Technological progress
The manufacturer reserves the right to revise, alter, or modify the flowmeter to
the most current technology without special prior notice. Further information
about the latest updates and potential additions to these operating instructions
are available from the manufacturer.
IMPORTANT!
WARNING!
NOTICE!
WARNING!
Flowmax 44i Tablet of contents
M I B 3
Tablet of contents
ULTRASONIC FLOW METERING/ DOSING DEVICE 1
General safety instructions 2
1. Planning information 4
1.1 Areas of application 4
1.2 Measuring principle 4
1.3 Operational safety 5
2 Assembly and installation 5
2.1 Installation instructions 5
2.2 Assembly of the flowmeter 6
2.3 Electrical wiring 9
3. Commissioning 13
3.1 Operation 13
3.2 Functionalities of flowmeter and default settings 16
3.2.1 Language 16
3.2.2 Dosing 16
3.2.3 Media 16
3.2.4 General Adjustment 19
3.2.5 Display 22
3.2.6 Analog Output QA 23
3.2.7 Digital Outputs Q1 and Q2 27
3.2.8 Digital Input I1 29
3.2.9 Diagnostic 29
3.3 Overview of default settings 30
3.4 General Information 30
4. Exchange of flowmeter 31
5. Technical specifications 32
5.1 Dimensions and weight 32
5.2 Technical specifications 34
6. Accessories 35
7. Shipment 35
Appendix Examples of operation 36
Table of figures
Fig. 1: Presentation of the principle of ultrasonic flow measuring 4
Fig. 2: Installation position of Flowmax 44i 5
Fig. 3: Mounting examples for Flowmax 44i 6
Fig. 4: Mounting possibilitis 7
Fig. 5: Fixing Flowmax 44i 7
Fig. 6: Flowmax 44i with hot media 8
Fig. 7: Pin code: Connection plug / socket for 5-pin version 9
Fig. 8: Pin code: Connection plug / socket for 8-pin version 11
Fig. 9: Pin code: Connection plug / socket for 8-pin version 12
Fig. 10: Operating with the key pad 14
Fig. 11: Menu strukture Flowmax 44i 15
Fig. 12: Function of creeping suppression illustrated with 0.6 l/min 17
Fig. 13: Function Lag Creeping Flow 18
Fig. 14: Function Hysteresis at limit 19
Fig. 15: The current output is aktive 23
Fig. 16: Characteristic curve 0 to 20mA 24
Fig. 17: Characteristic curve 4 to 20mA 24
Fig. 18: Function Filter of analog output 25
Fig. 19: Step response time of temperature measurement 26
Fig. 20: Connecting Digital Output to relay 28
Fig. 21: Connecting Digital Output to counter 28
Flowmax 44i 1. Planning information
M I B 4
1. Planning information
1.1 Areas of application
The flow measurement device Flowmax 44i is designed to measure dynamic
flow in pipes and tubes. This flowmeter is suitable for liquids only. The Flowmax
44i is used in
Chemicals supply for controlling, logistics, monitoring
Cooling systems, logistics, monitoring
Process equipment for control and monitoring of formulas
Valve control for continuous release of liquid volumes
Supply with de-ionized water
Very dynamic liquid processes with dosing times of below 1 second
Flowmax 44i has the following features and benefits:
No movable parts, therefore no wear
High repeatability
Easy to clean
Safe operation
Compact design
Integrated detection of empty conduits
Integrated dosing function with pre-set and adjustable amounts
Chemical resistant
1.2 Measuring principle
It usually takes more energy to swim against the flow than with the flow. The
ultrasonic flow measurement is based on the phase-difference approach:
Two ultrasonic-sensors located opposite from each other alternatively
transmitting and receiving ultrasonic signals. If there is no liquid flow both
sensors receive the transmitted ultrasonic signals in the same phase, i.e.
without phase difference. If liquid is flowing there is a phase shift. It differs when
measured in direction of the flow than when measured against the direction of
the flow. This phase difference is directly proportional to the flow rate.
Fig. 1: Presentation of the principle of ultrasonic flow measuring
Flowmax 44i 1. Planning information
M I B 5
1.3 Operational safety
Comprehensive self-tests ensure highest possible safety.
Faults (process or system errors) are output on a digital output or displayed on
the display menu.
The protection class is IP 67.
Flowmax 44i meets the general EMC immunity requirements according to CE,
EN 61000-6-3, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5,
EN 61000-4-6.
Flowmax 44i meets the safety requirements concerning the Protective Extra
Low Voltage directive according to EN 50178, SELV, PELV.
2. Assembly and installation
2.1 Installation instructions
The housing of Flowmax 44i is labeled with an arrow symbolizing the direction
of the flow measurement. The flow meter has to be installed in a way so that the
flow-through is in the same direction as the arrow symbol.
TOP -> outlet
DOWN -> inlet
Fig. 2: Installation position of Flowmax 44i
For fastest possible bubble detection it is important to keep the pipe distance
from tank to Flowmax 44i as short as possible. Accurate measurement can only
be assured, if the pipe is completely filled and the liquid does not outgas.
Notwithstanding it may be advantageous for dosing applications to install the
Flowmax 44i as close as possible to the dosing valve, since soft pipes
increases the cross-section depending on the system pressure. This may lead
to repeatable differences.
Insure that no cavitations dissolve from the measured liquid. Depending on the
measured liquid it can be helpful to have enough back pressure on the outlet of
Flowmax 44i to avoid cavitations. Insure all mechanical connections are tight.
Absolutely do not use Teflon tape for sealing!
NOTICE!
NOTICE!
Flowmax 44i 2. Assembly and installation
M I B 6
Particles present in the flow stream may result in measuring errors.
When using pumps, Flowmax 44i must be installed in flow direction on the
pressure side, on order to ensure sufficient pressure.
Do not exceed the maximum pressure allowance for of the Flowmax 44i
(see section 5.2 Technical specifications). Exceed the maximum pressure
or the maximum torque can lead to destruction or rupture of the Flowmax
44i.
For correct volume flow measurements straight and unobstructed inflow and
outflow distances have to be observed. Starting from the connection thread
these straight and unobstructed flow zones must be:
Nominal diameter
DN10
3/8”
DN15
1/2”
DN20
3/4”
DN25
1”
Inflow distance
10cm
3,94”
30cm
11,81”
40cm
15,75”
40cm
15,75”
Outflow distance
0cm
0”
5cm
1,97”
10cm
3,94”
20cm
7,87”
Always make sure that the maximum torque of the nuts for the hydraulic
connections is not exceeded. Use the delivered seals and the maximum torque
depending on the diameter:
Nominal diameter
DN10
3/8”
DN15
1/2"
DN20
3/4"
DN25
1”
Inch thread, torque:
2Nm
1.5 ft-lbs
3Nm
2.2 ft-lbs
4Nm
3.0 ft-lbs
6Nm
4.4 ft-lbs
2.2 Assembly of the flowmeter
The flowmeter is mounted into a pipe system by using the mechanical
connection. Flowmax 44i should be mounted vertically into the pipe for the best
measuring performance. Do not install the flowmeter after a dosing valve where
the flowmeter can run empty. Placing the flowmeter after a dosing valve and
allowing it to run empty will cause a measuring deviation at the next
measurement. To avoid bubbles in the liquid, Flowmax 44i should be installed
on the pressure side of the pump.
Fig. 3: Mounting examples for Flowmax 44i
NOTICE!
IMPORTANT!
WARNING!
Flowmax 44i 2. Assembly and installation
M I B 7
If it is not possible to mount the flowmeter vertically, then mount the instrument
in a location where the pipe will be filled at all times. The best measuring result
is achieved if bubbles do not pass through Flowmax 44i.
Fig. 4: Mounting possibilities
For applications with a “clean design“ for which it is necessary to completely
drain the pipe system, we recommend mounting the flowmeter in the vertical
position. Residual liquid may remain inside the device if flowmeter is mounted
horizontally.
Vibrations or mechanical forces may decrease measuring accuracy.
Mounting the flowmeter using two clamps will reduce vibrations or movements.
Use the clamps as seen in the figure below at the inlet and outlet connections of
Flowmax 44i.
Fig. 5: Fixing Flowmax 44i
Important!
Flowmax 44i must be installed without mechanical tensions on the
existing pipe system. The flowmeter may be damaged if there is tension
on the existing pipe system. Set the axial channel offset to 5mm when
mounting the flowmeter (For details see section 5.1 Dimensions and
weight).
Warning!
Non-compliance of the installation instructions may result in tearing of the
housing, liquid may leak out.
WARNING!
Flowmax 44i 2. Assembly and installation
M I B 8
Applications with hot liquids:
If Flowmax 44i is used in applications with liquid temperatures hotter than 60°C
and mounted horizontally then the flow meter should be mounted with the
electronic housing on the underside to reduce exposure to rising heat. If
Flowmax 44i is mounted vertically, heat damage is not an issue.
Fig. 6: Flowmax 44i with hot liquids
Warning!
Installation in metallic pipes in combination with high medium
temperatures
Note that the metal tube and the plastic housing of the measuring device have a
different expansion behavior! The resultant force acting on the meter forces can
cause the plastic housing of Flowmax 44i warps and the process connection
breaks off.
To ensure the mechanical stress-free mounting of Flowmax 44i, is on site to
ensure by appropriate measures that no forces can act on the plastic housing,
for example, a flexible metal hose or a strain curve.
IMPORTANT!
WARNING!
Flowmax 44i 2. Assembly and installation
M I B 9
2.3 Electrical wiring
Serious injury or death from electric shock may occur if wiring,
installation, disassembly or remove of wires is performed while
electrical power is energized.
Always shut off or disconnect electrical power at service panel and
lock switch or breaker and tag to prevent energizing electrical power
during work or while Flowmax 44i is not assembled and installed.
Wiring installation, disassembly and removal must be performed by
qualified persons experienced and knowledgeable about electrical
work.
Fig. 7: Pin code: Connection plug / socket for 5-pin version
Connector cable pin configuration defined by manufacturer.
The outlets may be re-programmed for specific applications.
5-pin plug with 1-wire communication:
Pin
Function
Description
1
24 VDC
Voltage supply: 18...30 VDC
2
Pulse output Q1
alternative:
1. Empty-pipe output
2. Dosing output
3. Upper or Lower Limitoutput
4. Negative flow
Digital Output Q1
Freely adjustable ranging from 0.1 to 3000 ml/pulse
in 0.1 ml/pulse steps, npn-or pnp-transistor, max.
load 100mA.
Max. voltage must be less than the supply voltage
Configurable output of 0V or 24V when pipe is
empty.
Configurable output of 0V or 24V
Configurable output of 0V or 24V when reaching
upper or lower limit
Configurable output of 0V or 24V when liquid flows in
negative direction
3
GND
Ground: 0 V
4
Communication
Communication interface
5
Analog output QA
4....20mA; 0....20mA
Example: 0l/min => 4mA
36l/min => 20mA (depending on
diameter)
Empty pipe Alert => 3.5mA
WARNING!
Flowmax 44i 2. Assembly and installation
M I B 10
5-pin plug with RS485 communication and current output:
Pin
Function
Description
1
24 VDC
Voltage Supply: 18...30 VDC
2
Communication
RS 485 B
3
GND
Ground: 0 V
4
Communication
RS 485 A
5
Analog output QA
4....20mA; 0....20mA
Example: 0l/min => 4mA
36l/min => 20mA (depending on
diameter)
Empty pipe Alert => 3.5mA
5-pin plug with RS 485 – communication and digital output Q1:
Pin
Function
Description
1
24 VDC
Voltage supply: 18...30 VDC
2
Pulse output Q1
alternative:
1. Empty-pipe output
2. Dosing output
3. Upper or Lower Limitoutput
4. Negative flow
Digital output Q1
Freely adjustable ranging from 0.1 to 3000 ml/pulse
in 0.1 ml/pulse steps, npn-or pnp-transistor, max.
load 100mA.
Max. voltage must be less than the supply voltage
Configurable output of 0V or 24V when pipe is
empty.
Configurable output of 0V or 24V
Configurable output of 0V or 24V when reaching
upper or lower limit
Configurable output of 0V or 24V when liquid flows
in negative direction.
3 GND
Ground: 0 V
4
Communication
RS 485 A
5
Communication
RS 485 B
Flowmax 44i 2. Assembly and installation
M I B 11
8-pin plug with 1-wire communication:
Fig. 8: Pin code: Connection plug / socket for 8-pin version
Connector cable pin configuration defined by manufacturer.
The outlets may be re-programmed for specific applications.
Pin
Function
Description
1
24 VDC
Voltage supply: 18...30 VDC
2
Digital output Q1
Functions
1. Pulse output
2. Empty pipe output
3. Dosing output
4. Upper or Lower Limit
output
5. Negative flow
Digital output Q1
Configurable npn-or pnp transistor, max. load
100mA*.
Max. voltage must be less than the supply voltage
Freely adjustable ranging from 0.1 to 3000
ml/pulse in 0.1 ml/pulse steps,
Configurable output of 0V or 24V when pipe is
empty.
Configurable output of 0V or 24V
Configurable output of 0V or 24V when reaching
upper or lower limit
Configurable output of 0V or 24V when liquid flows
in negative direction.
3
GND
Ground: 0 V
4
Digital output Q2
Functions:
1. Empty pipe output
2. Dosing output
3. Pulse output
4. Upper or Lower Limit
output
5. Negative flow
Digital output Q2
Configurable npn- or pnp-transistor, max. load
100mA*.
Max. voltage must be less than the supply voltage
Configurable output of 0V or 24V when pipe is
empty.
Configurable output of 0V or 24V
Freely adjustable ranging from 0.1 to 3000
ml/pulse in 0.1 ml/pulse steps.
Configurable output of 0V or 24V when flow
reaches upper or lower limit.
Configurable output of 0V or 24V when liquid flows
in negative direction.
5
Analog output QA
4....20mA; 0....20mA
Example: 0l/min => 4mA
36l/min => 20mA (depending on
diameter
Empty pipe Alert => 3.5mA
6
Communication
Communication interface
7
Digital input I1
1. Dosing output
2. Set offset
3. Reset counter
4. Creeping flow off
Digital input I1
Starts the dosage by a rising edge of 24V.
The Offset is set by a rising edge of 24V.
Reset of the counter by a rising edge of 24V.
Creeping suppression is deactivated as long as
there are 24V at the input.
8
Shielding
EMC safety
*it applies: for Q1 + Q2 ≤ 100mA
Flowmax 44i 2. Assembly and installation
M I B 12
8-pin plug with RS 485 communication:
Fig. 9: Pin code: Connection plug / socket for 8-pin version
Connector cable pin configuration defined by manufacturer.
The outlets may be re-programmed for specific applications.
Pin
Function
Description
1
24 VDC
Voltage supply: 18...30 VDC
2
Digital output Q1
Functions
1. Pulse output
2. Empty pipe output
3. Dosing output
4. Upper or Lower Limit
output
5. Negative flow
Digital output Q1
Configurable npn-or pnp transistor, max. load
100mA.
Max. voltage must be less than the supply voltage
Freely adjustable ranging from 0.1 to 3000
ml/pulse in 0.1 ml/pulse steps,
Configurable output of 0V or 24V when pipe is
empty.
Configurable output of 0V or 24V
Configurable output of 0V or 24V when reaching
upper or lower limit
Configurable output of 0V or 24V when liquid flows
in negative direction.
3
GND
Ground: 0 V
4
Digital input I1
1. Dosing output
2. Set offset
3. Reset counter
4. Creeping flow off
Digital input I1
Starts the dosage by a rising edge of 24V.
The Offset is set by a rising edge of 24V.
Reset of the counter by a rising edge of 24V.
Creeping suppression is deactivated as long as
there are 24V at the input.
5
Analog output QA
4....20mA; 0....20mA
Example: 0l/min => 4mA
36l/min => 20mA (depending on
diameter
Empty pipe Alert => 3.5mA
6
Communication
RS 485 A
7
Communication
RS 485 B
8
Shielding
EMC safety
Attention:
Only operate the flowmeter Flowmax44i within the operating limits
stipulated on the product label and the operating manual / data sheet.
Use of the Flowmax 44i outside these conditions will lead to overloads
which cause permanent damage.
IMPORTANT!
Flowmax 44i 3. Commissioning
M I B 13
3. Commissioning
NOTE:
If Flowmax 44i is used for a fluid other than water the "basic trim" has to be
carried out during commissioning. Therefore the device has absolutely be filled
with medium.
The basic trim can be done on the device display (alternatively FlowCon).
During the adjustment the medium may not flow as it affects the function.
3.1 Operation
If Flowmax 44i is used as a volume flowmeter for water or water-like liquids it
will not require on-site calibration. Parameters for water are calibrated at the
factory. The Flowmax 44i may also be ordered with customized settings, but
customized settings must be requested when Flowmax 44i is ordered.
If necessary, e.g. if viscosity and/or speed of sound deviate significantly from
water, the pre-set parameters can be adjusted via the display or FlowCon. It is
always necessary to adjust the manufacturer pre-set parameters when using
the Flowmax 44i as a dosing device. Adjusting the manufacturer pre-set
parameters requires a display or FlowCon.
The following parameters may be changed to settings suitable for the
individual conditions: for 5-pin version
- Digital output Q1, function and behavior
- Analog output QA, function and behavior
- Flow range, for which shall apply 4...20 mA
- Pulse value
- Creeping suppression
- Optimization of measurement curve with up to 8 interpolation values
(medium matrix)
The following parameters may be changed to settings suitable for the
individual conditions: for 8-pin version
- Digital output Q1, function and behavior
- Digital output Q2, function and behavior
- Digital input I1, function and behavior
- Analog output QA, function and behavior
- Flow range, for which shall apply 4...20 mA
- Pulse value
- Creeping suppression
- Optimization of measurement curve with up to 8 interpolation values
(medium matrix)
Flowmax 44i 3. Commissioning
M I B
14
Display and user menu
Flowmax 44i is equipped with a display to visualize actual measurement values
and to change parameters of the flowmeter. Menu navigation and parameter
changes are controlled by the four keys on the keypad.
Fig. 10: Operating with the key pad
Press the “Set” key to display the main menu. Different menu options can be
selected by using the two arrow keys.
To enter e.g. analog limits “Analog output – Upper limit” use the arrow keys to
change values and press “Set” to confirm. To switch back to the last menu level
press the “Esc” key. As soon as the operator tries to change values the user will
be prompted to enter a password. Password protection is used to ensure
changes to values or configurations are done by authorized personnel. The
default password for Flowmax 44i is 41414. The user level will remain active for
30 minutes after the last press on any button. 200 seconds after the last key
press, the device skips the menu and returns to the display mode, which does
not apply to the menu items diagnostic and dosing.
Operating examples see appendix.
The Password should only be shared with personnel authorized to make
changes to setting.
Note:
Always the actual set-activated menu parameters are shown in the display. The
activated parameter is displayed inverted.
Note:
In the menu all the possible functions of the instrument are visible
The functions of Digital Output Q2 and Digital Input I1 are only available on the
Flowmax version with 8-pin plug.
In the menu Analog Output there are displayed the output value functions PID Controller and Speed of Sound. They are provided only with functionality, if they
were considered in the order (optional).
Flowmax 44i without display has the same features as the display version, but
you can change parameters only via the display or programming unit FlowCon.
IMPORTANT!
NOTICE!
NOTICE!
Flowmax 44i 3. Commissioning
M I B
15
Fig. 11: Menu structure Flowmax 44i
Flowmax 44i 3. Commissioning
M I B
16
3.2 Functionalities of flowmeter and default settings
3.2.1 Language
The language of the display can be changed. Available languages are English,
Spanish, French and German.
3.2.2 Dosing
The Flowmax 44i can be configured for manually dosing by choosing the dosing
function via the user display. The Volume “Dosing Quantity“ and the “Dosing
Time“ are freely adjustable. The dosing time is intended as a safeguard against
unintentional overspill. When “Dosing Time“ is set to zero, the timer control is
inactive. A dosage can be started and stopped with the menu function keys
“Start“ and “Stop“.
Setting range “Dosing Quantity”: 0 – 3500 Liters, in steps of 0.001 L
Default setting “Dosing Quantity”: 0 Liters
Setting range “Dosing Time” 0 –30000 Seconds, in steps of 0.1 sec,
having an accuracy of +0/-1
Default setting “Dosing Time”: 3 Seconds
Important!
If Dosing Time =0 the time switch-off is inactive.
Example:
Dosing time = 3 seconds. That is Flowmax is sending the closing signal after
2.1 to 3.0 sec to the valve. The dosing time is designed as a security feature.
An exact dosage purely on the dosing time is not useful.
Warning!
The customer has to provide a technical solution for overfill protection
and an emergency stop switch. Both functions must run for safety to
valve closure.
3.2.3 Media
Set Offset
In the sub menu “Set Offset” it is possible to set the actual offset of the
flowmeter. Use this function only when Flowmax 44i is completely filled with
liquid, and there is no flow. If the offset is set while flow is present or when the
pipe is empty it will cause an offset drift what results in a faulty measurement.
Example of operation see appendix.
A small offset change, e.g. caused by variable temperatures, is automatically
done by the flowmeter. It is also possible to set the offset via the configurable
digital inputs.
1-Pt-Correction
Setting range: -50.0...50.0 % in steps of 0.1%
Default setting: 0 %
Example of operation see appendix.
IMPORTANT!
WARNING!
Flowmax 44i 3. Commissioning
M I B
17
Creeping suppression
The creeping suppression excludes flow measurements that result from
convection in a narrow band around zero, even with a closed valve. At the
factory, the creeping suppression is set at a standard value in relation to the
cross-section of the flowmeter. Changes to a smaller value of the parameter may
cause an offset drift what results in a faulty measurement.
There are higher tolerances below the standard default settings, see also section
5.2 measurement errors!
Creeping suppression works with a hysteresis of - 25%.
Fig. 12: Function of creeping suppression illustrated with 0.6 l/min
Example: Creeping suppression = 0.6 l/min
If the flow rate is lower than 0.45 l/min the pulse output/analog
output becomes inactive. If the flow rate exceeds 0.6 l/min a pulse is
output again and added to the totalizer. Similarly, a value is
transmitted to the analog output again.
Setting range: 0.0...20 l/min, in 0.006 l/min steps
Default settings: 0.3 l/min for DN10
0.9 l/min for DN15
3.5 l/min for DN20
5.0 l/min for DN25
Flowmax 44i 3. Commissioning
M I B
18
Lag Creeping Flow
The activation of the creeping suppression can be delayed. The value is
adjustable via menu.
Fig. 13: Function Lag Creeping Flow
Setting range: 0...99.9 s in steps of 0.1 s
Default settings: 0.5s
Basic Trim
The “Basic Trim” function insures that the flowmeter is conforming to the media
specific characteristics. To execute this function, Flowmax 44i runs a selfdiagnostic function which optimizes all important parameters. This process lasts
approximately 1 minute.
Important!
To make sure the basic trim is correctly done, the flowmeter has to be filled with
liquid without a flow.
When there is an error detected while performing the basic trim function, the
display shows “Error”. After successfully finishing the basic trim function, the
display will show “Done”.
Water
In this menu item, the correction values of the media matrix, previously
entered with FlowSoft are written back to the water value.
0
5
10
15
20
25
30
35
40
45
0 1 2 3 4 5 6 7 8 9 10 11 12
Flow [ml/s]
Time [s]
Function Lag Creeping Flow
Example 2 Seconds
Schleichmenge
Schleichmenge x 0,75
Fluss ohne Schleichmenge
Fluss ohne
Schleichmengeverzögerung
Fluss mit Schleichmenge 2s
Verzögerung
Creeping Suppression
Creeping Suppression
x 0.75
Flow without
Creeping Suppression
Flow without
Lag Creeping Flow
Flow with 2 sec
Lag Creeping Flow
NOTICE!
IMPORTANT!
Flowmax 44i 3. Commissioning
M I B
19
3.2.4 General Adjustment
Reset Counter
The volume counter of Flowmax 44i can be reset.
Example of operation see appendix.
Important!
Once reset, counter values cannot be restored. After a reset the counter works
normally.
Hysteresis
The limit values can be provided with a hysteresis. This is to avoid frequent
switching of the outputs when the flow moved to a limit around.
Fig. 14: Function Hysteresis at limit
Setting range: 0 to 8000ml/s in steps of 0.01 ml/s.
Default settings: 0
Lower Limit
Here, the lower limit for the digital output is set.
Setting range: 0 to 8000ml/s in steps of 0.01 ml/s.
Default settings: 0
0
50
100
150
200
0 1 2 3 4 5 6 7 8 9 10 11
Flow [ml/s]
Time [s]
Upper Limit=110ml/s Hysteresis=20 ml/s Filter=Off
Obergrenze
110 [ml/s]
Obergrenze -
Hysteresis
90 [ml/s]
Obergrenze +
Hysteresis
130 [ml/s]
Fluss Filter
[ml/s]
0
50
100
150
200
0 1 2 3 4 5 6 7 8 9 10 11
Flow [ml/s]
Time [s]
Upper Limit=110 ml/s Hysteresis=20 ml/s Filter=medium (3s)
Obergrenze
110 [ml/s]
Obergrenze -
Hysteresis
90 [ml/s]
Obergrenze +
Hysteresis
130 [ml/s]
Fluss Filter [ml/s]
Digital Ausgang =
Obergrenze
24V schliesser
0
20
40
60
80
100
0 1 2 3 4 5 6 7 8 9 10 11
Flow [ml/s]
Time [s]
Lower Limit=60ml/s Hysteresis=15 ml/s Filter=Off
Untergrenze
60 [ml/s]
Untergrenze -
Hysteresis
45 [ml/s]
Untergrenze +
Hysteresis
75 [ml/s]
Fluss Filter [ml/s]
Digital Ausgang =
Untergrenze
24V schliesser
IMPORTANT!
Upperlimit –
Hysteresis
90 [ml/s]
Upperlimit
110 [ml/s]
Upperlimit –
Hysteresis
90 [ml/s]
Lowerlimit –
Hysteresis
45 [ml/s]
Upperlimit
110 [ml/s]
Lowerlimit
60 [ml/s]
Upperlimit +
Hysteresis
130 [ml/s]
Flow filter
[ml/s]
Upperlimit +
Hysteresis
130 [ml/s]
Flow filter
[ml/s]
Digital Output =
Upperlimit
24V normal open
Lowerlimit +
Hysteresis
75 [ml/s]
Flow filter
[ml/s]
Digital Output =
Lowerlimit
24V normal open
Flowmax 44i 3. Commissioning
M I B
20
Upper Limit
Here, the lower limit for the digital output is set.
Setting range: 0 to 8000ml/s in steps of 0.01 ml/s.
Default settings: max. Flow of the flowmeter (depending on the diameter)
DN10 = 350 ml/s
DN15 = 600 ml/s
DN20 = 1000 ml/s
DN25 = 4000 ml/s
Pulse value
The pulse value determines the flow volumes for which an output pulse will be
emitted.
Choose a configuration which will neither exceed the maximum output
frequency of the Flowmax 44i (10kHz) nor the maximum input frequency of the
control. If the maximum frequency is exceeded the Flowmax 44i will not output
pulses correctly.
Example: 2.0 ml/Pulse
This means: a pulse is emitted every 2.0 ml.
Setting range: 0.1...3000.0 ml/Pulse, in steps of 0.1 ml/Pulse
Default setting: 1.0 ml/Pulse
Flow
Pulse value
Frequency
Period
Duration of the pulse
ml/s
ml/Pulse
Hz s s
ms
1 1 1 1 0,5
500
100 1 100
0,01
0,005
5
1000
0,1
10000
0,0001
0,00005
0,05
100
10
10
0,1
0,05
50
0,5
10
0,05
20 1 1000
In the last case every 20 seconds, a pulse of 1 second duration is put out.
Total Counter
The Total Counter can be displayed in the menu. The unit is fixed to m³. This
counter is unidirectional and can therefore differ from the daily counters.
The Total Counter can not be set to zero!
Flowmax 44i 3. Commissioning
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21
Counter
The daily counters is the one that appears by default in the display. The unit
corresponds to each set. The behavior of the daily quantity counter
a) at daily amount in [l]
from [l] to [l] resolution display [l]
0,000 14000 0,001
14000 28000 0,002
28000 56000 0,004
56000 112000 0,008
112000 225000 0,016
225000 445000 0,032
445000 1000000 0,064
Once the counter has reached 1000000 liters, it automatically begins to count
up from zero. Total counter runs without resetting on.
b) at daily amount in [m³]
from [m³] to [m³] reolution display [m³] rounding error -0,05%
0,000 14000 0,001
14000 28000 0,002
28000 56000 0,004
56000 112000 0,008
112000 225000 0,016
225000 461204 0,032
Once the counter has reached 461204 m³ it automatically begins to count up
from zero. Total counter runs without resetting on.
c) at daily amount in [US-Gal]
from [Gal]
to [Gal] resolution display [Gal] rounding error +0,12%
0,000 14000 0,001
14000 28000 0,002
28000 58000 0,004
58000 112000 0,008
112000 225000 0,016
225000 460000 0,032
445000 1000000 0,064
Once the counter has reached 1000000 Gal it automatically begins to count
up from zero. Total counter runs without resetting on.
Flowmax 44i 3. Commissioning
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22
3.2.5 Display
Units
Flowmax 44i is able to show actual flow or the volume in different units.
Setting range: ml/s + l , l/h + l, l/min + m³, Gal/min +Gal, l/min + l
Default setting: ml/s + l
Example: ml/s + l
Here, the flow appears in the unit "ml / s" (milliliters per second) and the daily
amount in "l" (liters).
Gal are US Gal with 1 Gal = 3,785 l.
Filter for Display
The indicated flow can additionally be filtered. This filter is an average over the
last 16s. It can be activated and deactivated via the menu.
Setting range: Off, On
Default setting: Off
Rotate Display
The display can be rotated in steps of 90°.
Setting range: 0°, 270°, 180°, 90°
Default setting: 0°
Flashing
The display flashes in case off an error. This can be switched off
Setting range: On, Off
Default setting: On
Flowmax 44i 3. Commissioning
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23
3.2.6 Analog Output QA
Function
The Analog Output is an active current output with 0-20mA or 4-20mA. It can be
adjusted via the displaymenu or FlowCon.
Fig. 15: The current output is active
Setting range: 0-20mA, 4-20mA, Off
Default setting: 4-20mA
The current output ranges from 0 to 22.6mA measuring the flow rate or the
condition of the flow measurement.
The values here signify for 4-20mA configuration:
20 mA the upper limit of the relevant measurement
4 mA the lower limit of the relevant measurement
3.5 mA empty pipe
Upper and lower limit parameters can be set within the type-specific
measurement of the device. The value of the upper limit must be greater than
the value of the lower limit, so that the values are stored. By default, the lower
limit is 0 mA or 4 mA and the respective end of the measuring range is set to 20
mA.
Setting range: 0-20mA, 4-20mA, off
Default setting: Flow, Temperature
When current output is used, the load must not be higher than 500Ohm. A
higher load prevents the device from providing the maximum current of 22.6mA.
IMPORTANT!
Flowmax 44i 3. Commissioning
M I B
24
Characteristic curves analog output
0 - 20mA
For the following graphic “min Range” is used for 0% and “max Range” is used
for 100%.
Value Current [mA]
Smaller 0% 0
0% (min Range) 0
Between 0% and 100% Linear interpolation from 0 to 20 mA
100% (max Range) 20
Bigger 100% 20
Fig. 16: Characteristic curve 0 to 20mA
4 - 20mA
For the following graphic “min Range” is used for 0% and “max Range” is used
for 100%.
Value Current [mA]
Empty pipe 3.5
Smaller -1.2% 3.8
Between -1.2% and 0% Linear interpolation from 3.8 to 4mA
0% (min Range) 4
Between 0% and 100% Linear interpolation from 4 to 20mA
100% (max Range) 20
Between 100% and 103% Linear interpolation from 20 to 20.5mA
Bigger 103% 22.6
Fig. 17: Characteristic curve 4 to 20mA
0
2
4
6
8
10
12
14
16
18
20
22
24
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Current [mA]
Value [%]
Current output 0...20mA
0
2
4
6
8
10
12
14
16
18
20
22
24
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Current [mA]
Value [%]
Current output 4...20mA
Flowmax 44i 3. Commissioning
M I B
25
Filter
The function ”Filter“ averages the analog output signal. Possible settings:
Setting range: Weak, Medium, Strong, Off
Default setting: Weak
The analog output signal reacts faster to signal changes when average
determination is set to “weak”. Whereas the analog output signal reacts slower
when average determination is set to “strong”.
Filter
100%
off
16ms
weak
0,3s
medium
3s
strong
30s
Fig. 18: Function Filter of analog output
Output Value
In the menu all output values are visible. The optional features are only
available when they are ordered. If a not ordered function is selected, the output
remains on flow.
Setting range: Flow, PID-Controller, Speed of Sound, Temperature
Default setting: Flow
Flow measurement for the analog output
Via the analog output of the measured flow is output.
PID controller for the analog output (Option)
On the current output, it is possible to realize a flow control. For setting the
parameters (target flow, proportional gain, integral gain and differential gain)
FlowSoft is necessary.
When this function via the menu (see Section 3.1 Fig 11. Menu structure
Flowmax 44i with analog output QA - Output value) is selected and the function
PID controller was not ordered, the function flow is output.
Speed of Sound for the analog output (Option)
When this function via the menu (see Section 3.1 Fig 11. Menu structure
Flowmax 44i with analog output QA - Output value) is selected and the function
Speed of sound was not ordered, the function flow is output.
0
20
40
60
80
100
0 1 2 3 4
Value [%]
Time [s]
aus
schwach
mittel
stark
off
weak
medium
strong
Step response analog output
Flowmax 44i 3. Commissioning
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26
Temperature measurement for the analog output
Via the analog output the measured temperature is output.
The temperature sensor is not wetted. It is used to calculate the extent of the
measuring channel. The sensor is influenced by the ambient temperature. The
temperature value will become sluggish, because it measures the plastic Temperature inside the sensor pocket.
Fig. 19: Step response time of the temperature measurement
Ambient temperature influence
Example of influences of the room temperature to the measured value.
Medium Temp. x 0,7 + ambient Temp. x 0,3 = measured Temp.
°C °C °C
40 x 0,7 + 20 x 0,3 = 34
40 x 0,7 + 30 x 0,3 = 37
40 x 0,7 + 40 x 0,3 = 40
60 x 0,7 + 20 x 0,3 = 48
Min Range
Here, the value is set at the 0 or 4 mA to be output.
Setting range: 0 to 8000ml/s (or °C or m/s) in steps of 0.01
Default setting: 0 ml/s
Max Range
Here, the value is set at the 20 mA to be output.
Setting range: 0 to 8000ml/s (or °C or m/s) in steps of 0.01
Default setting: max Flow of the flowmeter (depending on diameter)
DN10: 350 ml/s
DN15: 600 ml/s
DN20: 1000 ml/s
DN25: 4000 ml/s
0
20
40
60
80
100
0 5 10 15 20 25 30 35 40 45
Temperature [%]
Time [min]
Step response time
Flowmax 44i 3. Commissioning
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27
3.2.7 Digital Outputs Q1 and Q2 (Q2 only available with 8-pin plug)
The digital outputs Q1 and Q2 can be used as a pulse output, for signaling the
empty pipe message for controlling a dosing valve or to limit monitoring.
All outputs become high resistant if voltage falls below 16V. The digital outputs
become high resistant after about 100us for 2s when short circuit or overload.
Then it will retrying to actuate the output.
Setting range: Off, Pulse Output, Dosing, Negative Flow,
Lower Limit, Upper Limit, Empty Pipe
Default setting Q1: Pulse Output
Default setting Q2: Empty Pipe
NPN- or PNP-Logic can be selected.
Setting range: PNP / NPN, normal closed / normal open
Default setting Q1: PNP normal open
Default setting Q2: PNP normal open
Empty pipe output
Empty pipe Filled, no flow
0V normal closed High resistance 0V
0V normal open 0V High resistance
24V normal closed High resistance 24V
24V normal open 24V High resistance
Pulse output
Empty pipe Filled, no flow Filled, flow
0V normal closed 0V 0V High resistance
0V normal open 0V 0V High resistance
24V normal closed High resistance High resistance 24V Pulses
24V normal open High resistance High resistance 24V Pulses
Upper limit output
Below lower limit Between the limits Above upper limit
0V normal closed High resistance High resistance 0V
0V normal open 0V 0V High resistance
24V normal closed High resistance High resistance 24V
24V normal open 24V 24V High resistance
Lower limit output
Below lower limit Betwenn the limits Above upper limit
0V normal closed 0V High resistance High resistance
0V normal open High resistance 0V 0V
24V normal closed 24V High resistance High resistance
24V normal open High resistance 24V 24V
Dosing output
Startup of device While dosing Before/after dosing
0V normal closed High resistance High resistance 0V
0V normal open High resistance 0V High resistance
24V normal closed High resistance High resistance 24V
24V normal open High resistance 24V High resistance
Important!
When using the dosing function the output should not be configured as normal
closed!
If the dosing output is configured as normal closed the valve will stay open
after the dosing batch.
IMPORTANT!
Flowmax 44i 3. Commissioning
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Important!
Inductive load on the digital outputs without an installed diode may cause
damage on the Flowmax 44i electronics.
Example 1: Flowmax 44i via npn, external relay
Fig. 20: Connecting Digital Output to relay
Example 2:Flowmax 44i via pnp, external counter e.g. PLC
Fig. 21: Connecting Digital Output to counter
With high impedance input counters and high speed counting, it may be
necessary to include a resistor to have clean edges.
IMPORTANT!
Flowmax 44i 3. Commissioning
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29
3.2.8 Digital Input I1 (only available with 8-pin plug)
Flowmax 44i has a digital input that is programmable for the following functions:
dosing input, set offset, creeping suppression inactive and reset counter. In
order to start a dosing process, 24V DC power is required. The status of the
dosing parameters or modifications can be done via user display or FlowCon.
Setting range: Off, Reset Counter, Dosing, Creeping Flow Off, Set Offset
Default setting: Off
The dosing input is locked so that a re-start is not possible during a running
dosing process.
Available input functions:
Set offset Creeping flow off Dosing Reset counter Off
0V
- - - - -
24V
Rising edge:
0->24V
Set offset
State:
deactivating creeping
flow
Rising edge:
0->24V
start dosing
Rising edge:
0->24V
counter is reset
-
run only in stationary medium
The input function “Set Offset“ may only be used when there is no flow through
the meter. If an offset trim is done while liquid flow is present an offset drift will
cause measurement deviations. If the Flowmax shows an offset drift caused by
a wrong offset setting, run the function “Set Offset” or “Basic Trim” again with
filled flowmeter and no present flow.
3.2.9 Diagnostic
The sub menu “Diagnostic“ shows the software/hardware version and other
helpful values for analysis. Actual values and the instrument´s present status are
important to analyze the measurement or failure by the manufacturer service.
Testing Flow
For commissioning of the process plant, a test flow can be adjusted. In that
case the flowmeter will behave as if the test flow is really flowing, even if the
flowmeter is empty. To start the simulation “Start” must be selected, “Stop” ends
the simulation.
When you restart the flowmeter, the test flow is stopped and the value deleted.
Setting range: 0...3200ml/s in steps of 0.1
Pump Mode
This mode can be switched on and off via the menu.
With pulsating flow the flowmeter sets the display and analog filter on strong.
If the pulsating flow stops, the device behaves again as set.
Setting range: On, Off
Default setting: Off
Flowmax 44i 3. Commissioning
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30
3.3 Overview of default settings
Function
Default settings
Pulse value
1 ml/Pulse
Digital output Q1
Pulse output as PNP (24V) normal open
Digital output Q2 *
Empty pipe output as PNP (24V) normal open
Digital input I1 *
No function assigned
Current output QA
Flow as 4-20mA signal
20mA -> 21 l/min at DN10
36 l/min at DN15
60 l/min at DN20
240 l/min at DN25
Creeping suppression
0.3 l/min at DN10
0.9 l/min at DN15
3.5 l/min at DN20
5.0 l/min at DN25
3.4 General Information
Please check the following before powering the flowmeter for the first time:
Check the electrical connections and cable allocations.
Check the installation position of the flowmeter. Is the direction of the
arrow on the housing/name plate and the actual flow direction in the pipe
congruent?
Is the measurement pipe completely filled with fluid?
Check the back pressure in the system.
When everything has been checked, switch on power. After 30 minutes with
power running the measuring device reaches the maximum accuracy.
Flowmax 44i is operational!
IMPORTANT!
Flowmax 44i 4. Exchange of flowmeter
M I B
31
4. Exchange of flowmeter
Switch off power before disconnecting the electrical connections!
Wiring installation, disassembly and removal must be performed
by qualified persons experienced and knowledgeable about
electrical work.
Serious injury or death from electric shock may occur if wiring,
installation, disassembly or remove of wires is performed while
electrical power is energized
Please note that after replacing the flowmeter
a) Specific programming of the previous flowmeter should be noted and
programmed to the new flowmeter
b) when using the dosing function, set a quantity
If the device requires a configuration change, the display and programming unit
FlowCon 200i may be required (see section 6. Accessories).
Repair, hazardous substances
Before sending the flowmeter Flowmax 44i for repair, the following precautions
must be taken:
Clean all process chemicals from the device. Fully rinse the flow path.
Please pay close attention to the process fittings. All media must be
removed before returning. This is particularly important, if the medium
to be measured is health hazardous.
Devices judged to be insufficiently cleaned will be returned to sender. No
inspection of device will be done until proper cleaning is completed by user.
Costs due to inadequate cleaning of the instrument for possible disposal or
injury (burns, etc.) will be charged to the sender of the flowmeter into account.
With the flowmeter send a detailed report describing the failure, the
application and the physical-chemical properties of the medium
parameters. (e.g. a decontamination declaration).
In order to be able to process your repair order quickly and smoothly it is
important that you provide a technical contact person including phone and fax
number as well as e-mail address.
WARNING!
WARNING!
WARNING!
Flowmax 44i 5. Technical specifications
M I B
32
5. Technical specifications
5.1 Dimensions and weight
Nominal
diameter
Connection
Length
A [mm]
Width B
[mm]
Height C
[mm]
Height axis
D [mm]
Plug E
[mm]
Channel offset
F [mm]
Weight [g]
DN10 ⅜“
½ G,NPT
147,0
84,0
83,0
70,5
15,0
5,0
332
DN15 ½“
¾ G,NPT
147,0
84,0
84,5
71,1
15,0
5,0
344
DN20 ¾“
1 G,NPT
160,0
84,0
94,2
77,6
15,0
5,0
414
DN25 1“
1 ¼ G,NPT
168,0
84,0
98,5
77,6
15,0
5,0
454
Flowmax 44i 5. Technical specifications
M I B
33
Nominal
diameter
Connection
Length
A [mm]
Width B
[mm]
Height C
[mm]
Height axis
D [mm]
Plug E
[mm]
Channel offset
F [mm]
Weight [g]
DN10 ⅜“
11864-Clamp
149,0
84,0
83,0
70,5
15,0
5,0
339
DN15 ½“
11864-Clamp
149,0
84,0
84,5
71,1
15,0
5,0
347
DN20 ¾“
11864-Clamp
162,0
84,0
94,2
77,6
15,0
5,0
429
DN25 1“
11864-Clamp
170,0
84,0
98,5
77,6
15,0
5,0
469
Flowmax 44i 5. Technical specifications
M I B
34
5.2 Technical specifications
Housing
Nominal diameters DN10-3/8”, DN15-1/2”, DN20-3/4”, DN25-1”
Connection inner thread inch thread G, inch threat NPT, clamp connection
DIN11864-3 BKS-Clamp Form A
Medium temperature 0...+80°C
Protection class IP 67
Pressure nominal 16 Bar / 232Psi for DN10 -⅜” and DN15 – ½”
10 Bar / 145Psi for DN20 -¾” and DN15 – 1”
Material all wetted parts made of PPSU (Polyphenylsulfone)
Electronics housing made of PPSU (Polyphenylsulfone)
Electronics
Power supply 18...30VDC
Power input at 24VDC = 3.6W
Connection Plug 5 pins, option plug 8 pins
Ambient temperature 0....+60°C
Storage temperature 0....+70°C
Current output QA 0/4...20 mA,
Lower- and upper limit adjustable,
Ground connected to supply ground
Error Signal according to NAMUR NE43 with 4…20mA
Digital output Q1/2 via transistor npn- and pnp-logic, max. 100mA
output voltage according to DIN 19240:
≤5V means LOW
≥12V means HIGH
Short cut resistant
Frequency 0....10kHz
Data interface Data interface for parameterize
Measuring deviation ± 2% of reading ± 3mm/s (±6mm/s for DN10 - ⅜”)
Option ± 1% of reading ± 3mm/s (±6mm/s for DN10 - ⅜”)
Reference conditions (VDE/VDI 2642)
Measuring range 0.3 – 21 l/min DN10 - ⅜”
0.9 – 36 l/min DN15 – ½“
3.5 – 60 l/min DN20 - ¾“
5.0 – 240 l/min DN25 – 1“
Repeatability: 0.5%
The measuring system Flowmax 44i meets the general EMC immunity
requirements according to CE, EN 61000-6-3, EN 61000-4-2, EN 61000-4-3,
EN 61000-4-4, EN 61000-4-5, EN 61000-4-6. It is in conformity with the
requirements of the EC directives and has the CE label.
Flowmax 44i 6. Accessories
M I B
35
Possible error text Flowmax 44i
6. Accessories
Flowmax connection socket
Flowmax connection socket is used to power and connect Flowmax 44i to an
external control unit.
Ordercode 507321 (Socket 5 pins)
Ordercode 800845 (Socket 8 pins)
FlowCon 200i
External display and programming unit for use in combination with ultrasonic flow
measuring devices Flowmax. FlowCon 200i can also be installed as separate
display for Flowmax.
Ordercode 908873 (FlowCon 200i for 5-pin Flowmax)
Ordercode 908891 (FlowCon 200i for 8-pin Flowmax)
7. Shipment
For Flowmax 44i with inch thread a matching pair EPDM gaskets is included.
The device Flowmax 44i is delivered without additional material like connection
socket or cable. We recommend ordering a connection socket (e.g. Ordercode
507321) to supply the measuring device.
Display text
Description
Behavior
Empty Pipe
When “Empty Pipe” is detected, no flow measurement.
Display flashing +
text
Low Voltage
When power supply is less than 16V the outputs are
inactiv.
Display flashing +
text
Short Circuit
When over load of the digital outputs is detected
(>100mA), outputs are inactive.
only text
Lower Limit
When the flow is less than an adjustable limit and the
output is configured for limit control. At the same time the
configured output is switched.
only text
Upper limit
When the flow is more than an adjustable limit and the
output is configured for limit control. At the same time the
configured output is switched.
only text
Sonic Speed
Actual sonic speed out of specified value. Run basic trim!
only text
Overflow
Message appears if the measuring range is exceeded.
This may occur when starting up or when air bubbles.
The message is 30 seconds visible even when the flow is
within the allowable range. The measurement works but
then immediately
only text,
message is
displayed 30 sec
Flowmax 44i Appendix
M I B 36
Appendix Examples of operation
Enter Password
Key Display picture
Set Password
4 x Λ 40000
Set X0000
Λ X1000
Set XX000
4 x Λ XX400
Set XXX00
Λ XXX10
Set XXXX0
4 x Λ XXXX4
Set
Reset Counter
Set Dosing
Media
General Adjustment
Display
Analog Output QA
Set General Adustment
Reset Counter
Set General Adjustment
Reset Counter
Start?
Set General Adjustment
Reset Counter
Done
Flowmax 44i Appendix
M I B 37
Set Offset
Use this function only when Flowmax 44i is completely filled with liquid, and
there is no flow. If the offset is set while flow is present or when the pipe is
empty it will cause an offset drift what results in a faulty measurement.
Set Dosing
Media
General Adjustment
Display
Analog Output QA
Λ Language
Dosing
Media
General Adjustment
Display
Set Media
Set Offset
Set Media
Set Offset
Start ?
Set Media
Set Offset
Start ?
Done
Flowmax 44i Appendix
M I B 38
1-point correction
With the 1-point correction, the meter is calibrated to an operating point. Given
an arbitrary amount of volume is filled into a container and measured with a
weight. Attention: subtract the weight of the container.
With inclusion of the density of the medium, the volume (volume = mass /
density) is obtained. This has to be compared with the meter display.
Shows the meter for instance 2% more than determined by the scale a value of
-02.0% must entered for the 1-point correction.
Set Dosing
Media
General Adjustment
Display
Analog Output QA
Λ Language
Dosing
Media
General Adjustment
Display
Set Media
Set Offset
V Media
1-Point-Correction
Set Media
1-Point-Correction
-00.0%
Setting the sign
Setting the value
Set Media
1-Point-Correction
Done
To enable the correction back to delivery, a correction of 00.0% is to be entered.
Flowmax 44i Appendix
M I B 39
Display rotate 90°
Set Dosing
Media
General Adjustment
Display
Analog Output QA
V Media
General Adjustment
Display
Analog Output QA
Digital Output Q1
Set Display
Units
2 x V Display
Rotate Display
Set Display
Rotate Display
0°
3 x V Display
Rotate Display
90°
Set Display
Rotate Display
90°
Done
To return your display to its delivery, choose Rotate Display 0°.
Flowmax 44i
M I B 40
MIB GmbH
Messtechnik und Industrieberatung
Bahnhofstr. 35
D-79206 Breisach
Tel. 0049 / (0)7667 / 20 777 90
Fax 0049 / (0)7667 / 20 777 99
E-Mail: info@mib-gmbh.com
Internet: http://www.flowmax.de/
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