Burkert 8045 User Manual
Type 8045
Insertion electromagnetic flowmeter
Magnetisch-induktives Durchfluss-Messgerät, Insertion
Débitmètre électromagnétique à insertion
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modification technique.
© Bürkert SAS, 2012 - 2013
Operating Instructions 1308/1_EU-ML 00559778 / Original FR
www.burkert.com
Type 8045
1. ABOUT THE MANUAL .......................................................................................................................................................................4
1.1. Symbols used ..........................................................................................................................................................................4
1.2. Definition of the word "device" .......................................................................................................................................4
2. INTENDED USE ....................................................................................................................................................................................5
3. BASIC SAFETY INFORMATION ....................................................................................................................................................6
4. GENERAL INFORMATION ................................................................................................................................................................8
4.1. Manufacturer's address and international contacts ............................................................................................8
4.2. Warranty conditions ..............................................................................................................................................................8
4.3. Information on the Internet ...............................................................................................................................................8
5. DESCRIPTION .......................................................................................................................................................................................9
5.1. Area of application ................................................................................................................................................................9
5.2. General description ..............................................................................................................................................................9
5.3. Description of the name plate ........................................................................................................................................9
5.4. Available versions ...............................................................................................................................................................10
6. TECHNICAL DATA .............................................................................................................................................................................11
6.1. Conditions of use ................................................................................................................................................................11
6.2. Conformity to standards and directives .................................................................................................................11
6.3. General technical data .....................................................................................................................................................11
6.3.1. Mechanical data .......................................................................................................................................11
6.3.2. General data .............................................................................................................................................14
6.3.3. Electrical data ...........................................................................................................................................15
6.3.4. Electrical connection ..............................................................................................................................16
7. INSTALLATION AND COMMISSIONING ...............................................................................................................................17
7.1. Safety instructions .............................................................................................................................................................17
7.2. Installation onto the pipe ................................................................................................................................................ 18
7.2.1. Recommandations for installing the 8045 on the pipe .................................................................. 18
7.2.2. Installation into the pipe of a 8045 with a G2'' nut .........................................................................20
7.2.3. Installation into the pipe of a 8045 with a clamp connection .......................................................20
7.3. Wiring .........................................................................................................................................................................................21
7.3.1. Equipotentiality of the installation ........................................................................................................22
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Type 8045
7.3.2. Mounting the cable clamp .....................................................................................................................23
7.3.3. Terminal assignement and use of the selectors ...............................................................................24
7.3.4. Wiring the AO1 current output ............................................................................................................ 25
7.3.5. Wiring the DO1 transistor output ........................................................................................................ 26
7.3.6. Wiring the DI1 digital input ...................................................................................................................26
7.3.7. Wiring the DO2 and DO3 relay outputs ............................................................................................ 26
8. OPERATING AND FUNCTIONS ................................................................................................................................................. 27
8.1. Safety instructions .............................................................................................................................................................27
8.2. Operating levels of the device .....................................................................................................................................27
8.3. Description of the navigation keys and the status LEDs ..............................................................................29
8.4. Using the navigation keys .............................................................................................................................................. 30
8.5. Details of the Process level ..........................................................................................................................................30
8.6. Details of the Parameters menu .................................................................................................................................31
8.6.1. Choosing the display language ............................................................................................................32
8.6.2. Choosing the flow rate units, the number of decimals and the units of the totalizers .............32
8.6.3. Entering the K factor of the fitting used: ............................................................................................ 34
8.6.4. Determining the fitting K factor using a teach-in procedure .........................................................34
8.6.5. Configuring the outputs (general diagram) .......................................................................................37
8.6.6. Configuring the AO1 current output ...................................................................................................38
8.6.7. Configuring the transistor output DO1 as a pulse output .............................................................39
8.6.8. Configuring the transistor output DO1 to switch a load depending on two threshold
values .........................................................................................................................................................40
8.6.9. Configuring the transistor output DO1 to switch a load when the fluid direction changes . . 42
8.6.10. Configuring the transistor output DO1 to switch a load when a warning message is
emitted by the device .............................................................................................................................43
8.6.11. Configuring the DO2 and DO3 relay outputs ..................................................................................43
8.6.12. Configuring the DI1 digital input ..........................................................................................................46
8.6.13. Configuring the filter of the measured flow rate ............................................................................... 49
8.6.14. Resetting both totalizers ........................................................................................................................50
8.6.15. Configuring the electric network frequency ......................................................................................51
8.6.16. Parameterizing the cut-off flow rate .................................................................................................... 51
8.6.17. Setting the brightness of the display and how long it stays ON, or deactivating the
backlight ....................................................................................................................................................52
8.7. Details of the Test menu .................................................................................................................................................53
8.7.1. Adjusting the current output ................................................................................................................. 54
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Type 8045
8.7.2. Calibrating the flow zero point ............................................................................................................. 55
8.7.3. Checking the outputs behaviour .......................................................................................................... 56
8.7.4. Setting the Kw coefficient of the flow sensor ...................................................................................57
8.7.5. Monitoring the flow rate in the pipe. ...................................................................................................57
8.8. Details of the Information menu .................................................................................................................................59
9. MAINTENANCE AND TROUBLESHOOTING .......................................................................................................................60
9.1. Safety instructions .............................................................................................................................................................60
9.2. Cleaning the device ...........................................................................................................................................................60
9.3. Cleaning the flow sensor ................................................................................................................................................60
9.4. Replacing the seal on a 8045 with G2" nut ...........................................................................................................61
9.5. If you encounter problems ............................................................................................................................................62
9.5.1. Resolution of problems when the device status LED is OFF ....................................................... 62
9.5.2. Resolution of problems without message generation but device status LED ON ................... 62
9.5.3. Resolution of problems without message generation and device status LED green ..............64
9.5.4. Resolution of problems without message generation and device status LED red .................. 65
9.5.5. Resolution of problems without message generation and device status LED orange............66
10. SPARE PARTS AND ACCESSORIES ......................................................................................................................................67
11. PACKAGING, TRANSPORT ..........................................................................................................................................................68
12. STORAGE ..............................................................................................................................................................................................68
13. DISPOSAL OF THE PRODUCT .................................................................................................................................................. 68
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Type 8045
About the manual
1. ABOUT THE MANUAL
This manual describes the entire life cycle of the device. Please keep this manual in a safe place, accessible to all
users and any new owners.
This manual contains important safety information.
Failure to comply with these instructions can lead to hazardous situations.
• This manual must be read and understood.
1.1. Symbols used
danger
Warns against an imminent danger.
• Failure to observe this warning can result in death or in serious injury.
Warning
Warns against a potentially dangerous situation.
• Failure to observe this warning can result in serious injury or even death.
attention
Warns against a possible risk.
• Failure to observe this warning can result in substantial or minor injuries.
note
Warns against material damage.
• Failure to observe this warning may result in damage to the device or system.
Indicates additional information, advice or important recommendations.
Refers to information contained in this manual or in other documents.
→ Indicates a procedure to be carried out.
1.2. Definition of the word "device"
The word "device" used within this manual refers to the flowmeter type 8045.
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Type 8045
Intended use
2. INTENDED USE
Use of the device that does not comply with the instructions could present risks to people, nearby
installations and the environment.
• The 8045 flowmeter is intended exclusively to measure flow rate in liquids.
• This device must be protected against electromagnetic interference, ultraviolet rays and, when installed outdoors, the effects of climatic conditions.
• This device must be used in compliance with the characteristics and commissioning and use conditions
specified in the contractual documents and in these operating instructions.
• Requirements for the safe and proper operation of the device are proper transport, storage and installation, as
well as careful operation and maintenance.
• Only use the device as intended.
→ Observe any existing restraints when the device is exported.
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Type 8045
Basic safety information
3. BASIC SAFETY INFORMATION
This safety information does not take into account:
• any contingencies or occurences that may arise during installation, use and maintenance of the devices.
• the local safety regulations for which the operating company is responsible including the staff in charge of
installation and maintenance.
Danger due to high pressure in the installation.
• Stop the circulation of fluid, cut off the pressure and drain the pipe before loosening the process connections.
Danger due to electrical voltage.
• Shut down the electrical power source of all the conductors and isolate it before carrying out work on the
system.
• Observe all applicable accident protection and safety regulations for electrical equipment.
Danger due to high temperatures of the fluid.
• Use safety gloves to handle the device.
• Stop the circulation of fluid and drain the pipe before loosening the process connections.
Danger due to the nature of the fluid.
• Respect the prevailing regulations on accident prevention and safety relating to the use of aggressive fluids.
Various dangerous situations
To avoid injury take care:
• not to use the device for the measurement of gas flow rates.
• not to use the device in explosive atmospheres.
• not to use the device in an environment incompatible with the materials it is made of.
• not to use fluid that is incompatible with the materials the device is made of.
• not to subject the device to mechanical loads (e.g. by placing objects on top of it or by using it as a step).
• not to make any external or internal modifications to the device.
• to prevent any unintentional power supply switch-on.
• to ensure that installation and maintenance work are carried out by qualified, authorised personnel in possession of the appropriate tools.
• to guarantee a defined or controlled restarting of the process, after a power supply interruption.
• to use the device only if in perfect working order and in compliance with the instructions provided in these
operating instructions.
• to observe the general technical rules when installing and using the device.
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Type 8045
Basic safety information
note
The device may be damaged by the fluid in contact with.
• Systematically check the chemical compatibility of the component materials of the device and the fluids likely
to come into contact with it (for example: alcohols, strong or concentrated acids, aldehydes, alkaline compounds, esters, aliphatic compounds, ketones, halogenated aromatics or hydrocarbons, oxidants and chlorinated agents).
note
Elements / Components sensitive to electrostatic discharges
• This device contains electronic components sensitive to electrostatic discharges. They may be damaged if
they are touched by an electrostatically charged person or object. In the worst case scenario, these compo-
nents are instantly destroyed or go out of order as soon as they are activated.
• To minimise or even avoid all damage due to an electrostatic discharge, take all the precautions described in
the EN 61340-5-1 and 5-2 norms.
• Also ensure that you do not touch any of the live electrical components.
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Type 8045
General information
4. GENERAL INFORMATION
4.1. Manufacturer's address and international contacts
To contact the manufacturer of the device, use following address:
Bürkert SAS
Rue du Giessen
BP 21
F-67220 TRIEMBACH-AU-VAL
You may also contact your local Bürkert sales office.
The addresses of our international sales offices are available on the internet at:www.burkert.com
4.2. Warranty conditions
The condition governing the legal warranty is the conforming use of the 8045 in observance of the operating conditions specified in this manual.
4.3. Information on the Internet
You can find the user manuals and technical data sheets regarding the type 8045 at:www.burkert.com
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Type 8045
Description
5. DESCRIPTION
5.1. Area of application
The 8045 flowmeter is intended exclusively to measure flow rates in liquids.
The device makes it possible to switch a solenoid valve or activate an alarm thanks to a transistor output and,
for some versions, by means of two relay outputs, fully configurable and to establish a control loop thanks to a
4-20 mA current output.
The versions also equipped with a digital input make it possible to remotely activate a function.
5.2. General description
The device comprises both a flow sensor operating on Faraday's law and a transmitter with display.
The device is equipped with a 4-20 mA current output (analogue output, called AO1), a digital output (configured
as a pulse output by default, called DO1) and two totalisers.
Some versions are equipped with two relay outputs (called DO2 and DO3) and one digital input (called DI1).
The device operates on a 3 wire system and needs a 18-36 V DC power supply.
The electrical connection is made on the terminals blocks of the electronic board within the transmitter, through
two M20 x 1,5 cable glands.
5.3. Description of the name plate
1. Measured value and type of the device
FLOW 8045 SST LONG SUPPLY: 18-36V 300 mA
DO1: 5-36V= 100mA DO2/3:250V 3A Max
DI1: 18-36V= 10mA IP65 Fluid: PN16:-15/110°C
S/N 11 162
Made in France
00449673 W43M
13
10
FLOW
14
67891112
2. Specification of the flow sensor
3. Specification of the DO1 digital output
4. Specification of the DO2 and DO3 relay outputs
5. Electrical power supply and current
consumption
6. Manufacturing code
7. Conformity logo
8. Warning: Before using the device, take into
account the technical specifications described
in these operating instructions.
9. Fluid temperature range and fluid nominal
pressure
Fig. 1: Name plate of the 8045 flowmeter
10. Protection class of the device
11. Specification of the DI1 digital input
12. Serial number
13. Order code
14. Shows the flow direction
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Type 8045
Description
5.4. Available versions
The following versions of the 8045 flowmeter are available.
These versions all have a 4-20mA current output (AO1) and a digital output (DO1).
Relay
outputs
(DO2, DO3)
- - PC short, in PVDF Stainless steel
2 1 short, in PVDF Stainless steel
- - PPA short, in stainless steel Stainless steel
2 1 short, in stainless steel Stainless steel
- - PC short, in PVDF Alloy C22
- - PPA clamp, short, in stainless steel* Stainless steel
2 1 PPA clamp, short, in stainless steel* Stainless steel
*) Only with S020 for devices with a clamp connection.
Digital input
(DI1)
Material
of the
housing
Specification of the flow
sensor
long, in PVDF Stainless steel
long, in PVDF Stainless steel
long, in stainless steel Stainless steel
long, in stainless steel Stainless steel
long, in PVDF Alloy C22
Material of the
electrodes
Order code
426498
426499
426506
426507
449670
449672
449671
449673
558675
558676
567797
567798
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Type 8045
Technical data
6. TECHNICAL DATA
6.1. Conditions of use
Ambient temperature -10 to +60 °C
Air humidity < 85%, non condensated
Height above see level max. 2000 m
Protection class acc. to
EN 60529
6.2. Conformity to standards and directives
The device conforms to the EC directives through the following standards:
• EMC: EN 61000-6-2, EN 61000-6-3
IP65, device wired and cable glands tightened and cover lid screwed tight.
• LVD: EN 61 010-1
• Vibration: EN 60068-2-6
• Shock: EN 60068-2-27
• Pressure: article 3§3 of the Pressure Directive 97/23/CE. Acc. to the Pressure Directive 97/23/CE: the device
can only be used in the following cases (depending on the max. pressure, the DN of the pipe and the fluid)
Type of fluid Conditions
Fluid group 1, par. 1.3.a Forbidden
Fluid group 2 par. 1.3.a
Fluid group 1 par. 1.3.b PNxDN ≤ 2000
Fluid group 2 par. 1.3.b
DN ≤ 32
or DN > 32 and PNxDN ≤ 1000
DN ≤ 200
or PN ≤ 10
or PNxDN ≤ 5000
6.3. General technical data
6.3.1. Mechanical data
Part
Housing / seal PC / NBR Black PPA / NBR
Cover with lid / seal PC / silicone PSU / silicone
Front foil Polyester
M20x1,5 cable glands / seal PA / neoprene
Screws Stainless steel
Nut PC PPA
Flow sensor (exposed to the fluid) PVDF Stainless steel 316L (DIN 1.4404)
Material (8045 with flow sensor in
PVDF)
Material (8045 with flow sensor in
stainless steel)
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180
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Type 8045
Technical data
Part
Material (8045 with flow sensor in
PVDF)
Material (8045 with flow sensor in
stainless steel)
Seal FKM 8045 with a G2" nut: FKM
Earth ring of the flow sensor Stainless steel 316L (DIN 1.4404)
-
or Alloy C22
Electrodes holder - PEEK
Electrodes Stainless steel 316L (DIN 1.4404) or Alloy C22
113
21
Fig. 2: Dimensions of flowmeter 8045 with a G2" nut [mm]
181
218
123
88
ENTER
88
116
H
Welding tab with
radius, in stainless
T-fitting Saddle Spigot, in plastic
steel
DN6 182
DN8 182
DN15 187
DN20 185
DN25 185
DN32 188
DN40 192 188
DN50 198 223 193
DN65 198 222 206 199
DN80 226 212 204
DN100 231 219 214
DN110 227
DN125 234 254 225
DN150 244 261 236
DN180 268
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DN200 280 282 257
DN250 300 317
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Type 8045
Technical data
H
radius, in stainless
T-fitting Saddle Spigot, in plastic
DN300 312 336
DN350 325 348
DN400 340
Fig. 3: Dimension H in mm of the flowmeter 8045 with a G2" nut and inserted into an S020 fitting
Welding tab with
steel
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189
Fig. 4: Dimensions of flowmeter 8045 with a clamp connection [mm]
H
T fittings for measuring devices with a
Welding socket for measuring devices with
clamp process connection
DN32 200 200
DN40 205 205
DN50 210 210
DN65 218 218
DN80 224 224
DN100 230 230
153
88
88
116
a clamp connection
Fig. 5: Dimension H in mm of the flowmeter 8045 with a clamp connection and inserted into an S020 fitting
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Type 8045
Technical data
P (bar)
A
A
P (bar)
10
9
8
7
PVC + PP
6
5
4
3
2
1
0
PVC (PN10)
0 +20 +40 +60 +80
PVDF (PN10) /
PP (PN10)
T (°C)
Metal
16
15
14
13
12
11
10
Metal
1)
(PN16)
PVDF
DN100 for measuring
devices with a clamp con-
nection (PN10)
9
8
7
PVC + PP
PVDF (PN10)
6
5
4
8045 with flow sensor in PVDF
3
2
1
0
-20 0 +20 +40 +60 +80 +100 +120
PVC (PN10)
PP (PN10)
T (°C)
1)
Except DN100 for measuring devices with a clamp connection
8045 with flow sensor in stainless steel
A: range of use
Fig. 6: Fluid pressure /temperature dependency for a 8045 with PVDF flow sensor or stainless steel flow sensor and
a fitting S020 in metal, PVC, PVDF or PP
6.3.2. General data
Pipe diameter DN6 to DN400
Type of fitting S020
Min. fluid conductivity 20 µS/cm
Fluid temperature
• 8045 with flow sensor in PVDF
• 8045 with flow sensor in stainless steel
Fluid pressure
• 8045 with flow sensor in PVDF
• 8045 with flow sensor in stainless steel
The fluid temperature may be restricted by the fluid
pressure, the material the flow sensor is made of and
the material the S020 fitting used is made of. See “Fig.
6”.
• 0 to +80 °C
• -15 to +110 °C
The fluid pressure may be restricted by the fluid
temperature, the material the flow sensor is made of,
the material the S020 fitting used is made of and the
DN of the S020 fitting. See “Fig. 6”.
• PN10
• PN16
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Type 8045
Technical data
Flow rate measurement
• Measurement range
• Accuracy, after a teach-in calibration has been made
• Accuracy, with the K factor of the fitting used
• Linearity
• Repeatability
1)
Determined in the following reference conditions: fluid = water, water and ambiant temperatures = 20 °C, upstream and
downstream distances respected, appropriate pipe dimensions.
• 0,2 to 10 m/s
• ±0,5 % of the measured value
• ±3,5 % of the measured value
• ±0,5 % of the full scale
1)
• ±0,25 % of the measured value
1)
1)
6.3.3. Electrical data
Power supply • 18-36 V DC, filtered and regulated
• oscillation rate: ±5 %
Current consumption 300 mA max. (at 18 V DC)
Transistor output DO1
• type
• function
• frequency
• Electrical data
• NPN / PNP (wiring dependent), open collector
• pulse output (by default), user configurable
• 0-250 Hz
• 5-36 V DC, 100 mA max.
• duty cycle if f > 2 Hz
• min. pulse duration if f < 2 Hz
• protections
Relay outputs (DO2 and DO3)
• operating
• electrical data of the load
• max. breaking capacity
• life span
Current output AO1
• specification
• max. loop impedance
• 1/2
• 250 ms
• galvanically isolated, and protected against overvoltages, polarity reversals and short-circuits
• hysteresis (by default), configurable, normally open
• 250 V AC / 3 A or 30 V DC / 3 A (resistive load)
• 750 VA (resistive load)
• min. 100000 cycles
• 4-20 mA, sink or source (wiring dependent), 22 mA
to indicate a fault
• 1300 W at 36 V DC, 1000 W at 30 V DC, 700 W at
24 V DC, 450 W at 18 V DC
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Digital input DI
Type 8045
Technical data
• supply voltage
• input impedance
• min. pulse duration
• protections
• 18-36 V DC
• 15 kW
• 200 ms
• galvanically isolated, and protected against polarity
reversals and voltage spikes
6.3.4. Electrical connection
Type of connection Through two M20x1,5 cable glands
Cable specifications
• cable type
• Cross section
• Diameter of each cable:
- if only one cable is used per cable gland
- if two cables are used per cable gland
• shielded
• 0,5 to 1,5 mm
2
- 6...12 mm
- 4 mm, with the supplied multi-way seal
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Type 8045
Installation and commissioning
7. INSTALLATION AND COMMISSIONING
7.1. Safety instructions
danger
Risk of injury due to high pressure in the installation.
• Stop the circulation of fluid, cut off the pressure and drain the pipe before loosening the process connections.
Risk of injury due to electrical voltage.
• Shut down the electrical power source of all the conductors and isolate it before carrying out work on the system.
• Observe all applicable accident protection and safety regulations for electrical equipment.
Risk of injury due to high fluid temperatures.
• Use safety gloves to handle the device.
• Stop the circulation of fluid and drain the pipe before loosening the process connections.
Risk of injury due to the nature of the fluid.
• Respect the prevailing regulations on accident prevention and safety relating to the use of aggressive fluids.
Warning
Risk of injury due to non-conforming installation.
• The electrical and fluid installation can only be carried out by qualified and skilled staff with the appropriate
tools.
• Install appropriate safety devices (correctly rated fuse and/or circuit-breaker).
• Respect standard NF C 15-100 / IEC 60364.
• Respect the assembly instructions for the fitting used.
Risk of injury due to unintentional switch on of power supply or uncontrolled restarting of the
installation.
• Take appropriate measures to avoid unintentional activation of the installation.
• Guarantee a set or controlled restarting of the process subsequent to any intervention on the device.
Warning
Danger due to non-conforming commissioning.
Nonconforming commissioning could lead to injuries and damage the device and its surroundings.
• Before commissioning, make sure that the staff in charge have read and fully understood the contents of the
manual.
• In particular, observe the safety recommendations and intended use.
• The device / the installation must only be commissioned by suitably trained staff.
Protect this device against electromagnetic interference, ultraviolet rays and, when installed outdoors, the effects of the climatic conditions.
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Type 8045
Installation and commissioning
7.2. Installation onto the pipe
danger
Risk of injury due to high pressure in the installation.
• Stop the circulation of fluid, cut off the pressure and drain the pipe before loosening the process connections.
Risk of injury due to the nature of the fluid.
• Respect the prevailing regulations on accident prevention and safety relating to the use of aggressive fluids.
The 8045 flowmeter has to be inserted into an S020 fitting mounted on a pipe.
7.2.1. Recommandations for installing the 8045 on the pipe
Choose an S020 fitting appropriate to the velocity of the fluid inside the pipe: refer to the graphs below:
→
Flow rate
US gpm
20000
10000
5000
2000
1000
500
200
100
50
20
10
5
2
1
0.5
0.2
0.1
0.05
3
l/min
m
/h
100000
5000
50000
2000
30000
20000
1000
10000
500
5000
200
3000
2000
100
1000
50
500
20
200
10
100
5
50
2
20
1
10
0.5
5
0.2
2
0.1
1
0.05
0.5
0.02
0.2
0.01
0.10.3 0.51 35 10
0.30.5 13510
Fluid velocity
DN 400
DN 350
DN 300
DN 250
DN 200
DN 150
DN 125
DN 100
DN 80 (DN100)*
DN 65 (DN80)*
DN 50 (DN65)*
DN 40 (DN50)*
DN 32 (DN40)*
DN 25 (DN32)*
DN 20 (DN25)*
DN 15 (DN15 / DN20)*
Example
DN 8
DN 6
m/s
30
fps
Example:
• Specification: if the nominal flow rate is
3
/h, the ideal flow velocity is between
10 m
2 and 3 m/s.
• Solution: intersection between flow rate and
flow velocity in the graph gives the appropriate pipe diameter, DN40 (or DN50 for
the asterisked fittings).
* For the fittings:
• with external thread connections acc. to
SMS 1145,
• with welding end connections acc. to
SMS 3008, BS 4825 / ASME BPE or
DIN 11850 Rg 2,
• with Clamp connections acc.
to SMS 3017 / ISO 2852,
BS 4825 / ASME BPE or DIN 32676.
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→ Install the device on the pipe in such a way that the upstream and downstream distances are respected
according to the design of the pipes, refer to standard EN ISO 5167-1 and Fig. 7 :
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Type 8045
Installation and commissioning
flow direction
50 x DN 5 x DN
With control valve Pipe with 2 elbows at 90° in 3
40 x DN 5 x DN
dimensions
25 x DN 5 x DN 20 x DN 5 x DN
Pipe with 2 elbows at 90° Pipe with 1 elbow at 90° or 1
T-piece
18 x DN 5 x DN 15 x DN 5 x DN
With pipe expansion With pipe reduction
Fig. 7: Upstream and downstream distances depending on the design of the pipes.
→ Respect the following additional mounting conditions to ensure that the measuring device operates correctly:
- Preferably install the device at a 45° angle to the horizontal centre of the pipe to avoid having deposits on the electrodes and false measurements due to air bubbles (see “Fig. 8”);
45°
45°
Fig. 8: Mounting angle on the pipe
- Ensure that the pipe is always filled in the section around the device (see Fig. 9).
- When mounting vertically ensure that the flow direction is in an upward direction (see Fig. 9).
Horizontal mounting
Correct Incorrect
Vertical mounting
flow direction
Correct Incorrect
Fig. 9: Filling of the pipe
- Prevent the formation of air bubbles in the pipe in the section around the device (see Fig. 10).
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