Burkert 8041 User Manual
Type 8041
Insertion electromagnetic flowmeter
Magnetisch-induktives Durchfluss-Messgerät, Insertion
Débitmètre électromagnétique à insertion
Operating Instructions
Bedienungsanleitung
Manuel utilisateur
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert SAS, 2011 - 2013
Operating Instructions 1308/1_EU-ML_559777_Original_FR
Type 8041
1. ABOUT THIS MANUAL .................................................................................3
1.1. Symbols used .......................................................................................3
1.2. Definition of the word "device" ....................................................3
2. INTENDED USE ................................................................................................4
3. BASIC SAFETY INFORMATION ...............................................................4
4. GENERAL INFORMATION ...........................................................................6
4.1. Manufacturer's address and international contacts .........6
4.2. Warranty conditions ...........................................................................6
4.3. Information on the Internet ............................................................6
5. DESCRIPTION ...................................................................................................6
5.1. Area of application .............................................................................6
5.2. General description ........................................................................... 6
5.2.1. Construction ........................................................................... 6
5.2.2. Operating principle ............................................................... 6
5.3. Description of the name plate .....................................................7
5.4. Available versions ...............................................................................7
6. TECHNICAL DATA ...........................................................................................8
6.1. Conditions of use ................................................................................8
6.2. Conformity to standards and directives..................................8
6.3. Mechanical data ...................................................................................8
6.4. General data ....................................................................................... 11
6.5. Electrical data ....................................................................................12
6.6. Electrical connections ................................................................... 13
6.7. K factors ................................................................................................13
7. QUICK INSTALLATION ..............................................................................14
8. INSTALLATION ............................................................................................... 16
8.1. Safety instructions...........................................................................16
8.2. Installation onto the pipe ............................................................. 17
8.2.1. Recommandations for installing the 8041 on
the pipe ..................................................................................17
8.2.2. Installation into the pipe of a 8041 with a G2'' nut .....20
8.2.3. Installation into the pipe of a 8041 with a clamp
connection ............................................................................21
8.3. Wiring ...................................................................................................... 21
8.3.1. Wiring the 4-20 mA output...............................................24
8.3.2. Wiring the frequency output .............................................24
8.3.3. Wiring the relay output ......................................................26
9. ADJUSTMENT AND COMMISSIONING ............................................27
9.1. Safety instructions...........................................................................27
9.2. Description of the electronic board ....................................... 28
9.3. General diagram of the Read and
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1
Type 8041
Parameterizing modes .................................................................. 30
9.4. Selecting the frequency of the main supply .....................32
9.5. Filter selection ................................................................................... 32
9.6. Selecting the measurement range ......................................... 33
9.7. Calibrating the flow zero point .................................................33
9.8. Calibrating the full scale ..............................................................36
9.9. Setting the parameters of the relay output ....................... 39
9.9.1. Choosing the switching way of the relay output ..........40
9.9.2. Viewing and setting the low and high switching
thresholds .............................................................................42
9.9.3. Viewing and setting the time delay before switching .45
10. MAINTENANCE AND TROUBLESHOOTING ................................48
10.1. Safety instructions...........................................................................48
10.2. Cleaning the device ........................................................................ 48
10.3. Cleaning the electrodes ............................................................... 48
10.4. Replacing the seal on a device with G2" nut .................... 49
10.5. If you encounter problems ..........................................................49
11. SPARE PARTS AND ACCESSORIES ............................................... 53
12. PACKAGING, TRANSPORT ...................................................................54
14. DISPOSAL OF THE DEVICE ................................................................. 54
13. STORAGE ....................................................................................................... 54
2
English
Failure to observe this warning may result in damage to the device
Type 8041
About this manual
1. ABOUT THIS 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.
•
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 done.
1.2. Definition of the word "device"
The word "device" used within these operating instructions refers to
the flowmeter type 8041.
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3
Type 8041
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 8041 flowmeter is intended exclusively to measure the 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 the 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.
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.
Danger due to electrical voltage.
Danger due to high temperatures of the fluid.
Danger due to the nature of the fluid.
Various dangerous situations
To avoid injury take care:
• 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.
4
English
note
note
Type 8041
Basic safety information
Various dangerous situations (cont'd)
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 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 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.
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).
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 components 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 613405-1 and 5-2 norms.
• Also ensure that you do not touch any of the live electrical
components.
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5
Type 8041
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.
They can also be found on the Internet under:
www.burkert.com
4.2. Warranty conditions
The condition governing the legal warranty is the conforming use of
the device in observance of the operating conditions specified in these
operating instructions.
4.3. Information on the Internet
You can find the user manuals and technical data sheets regarding
the type 8041 at:
www.burkert.com
5. DESCRIPTION
5.1. Area of application
The device is used to measure the flow of neutral or slightly aggressive
fluids with a conductivity of more than 20 µS/cm in DN06 to DN400
pipes.
5.2. General description
5.2.1. Construction
The device comprises an electronic module and a PVDF or stainless
steel measurement sensor.
The flow sensor comprises two electrodes and a magnetic system.
The connection of the device to the process is made depending on
the version, either by a G2'' nut or a clamp.
Electrical connection is made via two cable glands on a 6-pin terminal
block.
The device requires an 18-36 VDC power supply and has:
• a frequency output,
• a relay output,
• a 4-20 mA current output.
5.2.2. Operating principle
The magnetic system in the flow sensor generates a magnetic field
in the fluid, perpendicular to the flow direction, see Fig. 1. The electrodes on the flow sensor ensure electrical contact with the fluid.
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Type 8041
Description
When the fluid flows over them, a voltage is measured between the
two electrodes. This voltage is proportional to the fluid velocity.
Fig. 1: Operating principle of the flow sensor
5.3. Description of the name plate
132
FLOW:8041- IND LONG SST
18-36V —/220mA 4-20mA REL:230VAC~/3A CO
SN/ 2135
00552780
Made in France
10
Fig. 2: Name plate of the device (example)
1. Power supply / Max. consumption.
2. Measured value and type of the device
3. Specification of the flow sensor
W47MG
678911
4
5
4. Compact housing
5. Manufacturing code
6. Relay data
7. Conformity logo
8. Warning: Before using the device, take into account the tech-
nical specifications described in these operating instructions.
9. Current output
10. Serial number
11. Order code
5.4. Available versions
Flow
sensor
Flow sensor Seal of the flow
Short PVDF FKM 558064
Long 558065
Short Stainless steel FKM 552779
Long Stainless steel FKM 552780
Clamp Stainless steel EPDM or FEP
1)
Ordered separately. See chap. 11.
Material Order code
sensor
1)
564688
English
7
Type 8041
Technical data
6. TECHNICAL DATA
6.1. Conditions of use
Ambient temperature -10 °C...+60 °C
Air humidity < 80%, non condensated
Protection class acc. to
EN 60529
Degree of pollution Degree 2 acc. to EN 61010-1
Installation category Category I acc. to EN 61010-1
Max height above see level 2000 m
6.2. Conformity to standards and
directives
The device conforms to the EC directives through the following
standards:
• EMC: EN 50081-1, EN 61000-6-2
• LVD: EN 61 010-1
• 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)
IP65, with cable connected and
cable gland tightened and cover
screwed on to the electronic module
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. Mechanical data
Table 1 : Wetted parts
Part Material
Holder of the flow sensor
Electrodes
Clamp (only clamp version)
Earthing ring (only if flow sensor holder in
PVDF)
Holder of the electrodes (only if flow
sensor holder in stainless steel)
Seal of the flow sensor (version with
G2" nut)
PVDF or stainless steel
1.4404 / 316L
Stainless steel
1.4404 / 316L
Stainless steel
1.4404 / 316L
Stainless steel
1.4404 / 316L
PEEK
FKM (FDA approved)
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English
170
Type 8041
Technical data
Table 2 : Parts not in contact with the fluid
Part Material
Housing, cover, nut
• holder of the flow sensor in
• PPA, glass fiber reinforced
stainless steel
• holder of the flow sensor in
• PC, glass fiber reinforced
PVDF
Screws of the cover Stainless steel
Cable gland PA
Seal of the cover EPDM
Seal of the cable gland Neoprene
Clamp
Holder of the flow sensor
Electrodes
Electrodes holder
Fig. 4: Parts of the flow sensor in stainless steel with a clamp
connection
116
116
Electrodes holder
Holder of the
flow sensor
Electrodes
Earthing ring
Fig. 3: Parts of the flow sensor holder in stainless steel (left) or in
PVDF (right), devices with a G2'' nut
134
88
Fig. 5: Dimensions of the 8041 [mm]
English
88
199
162
9
Type 8041
Technical data
Table 3 : Dimension H in mm of the flowmeter 8041 with a G2" nut and inserted into an S020 fitting
H
Spigot, in plastic
T-fitting
Saddle
DN6 163
DN8 163
DN15 168
DN20 166
DN25 166
DN32 169
DN40 173 169
DN50 179 204 174
DN65 179 203 187 180
DN80 207 193 185
DN100 221 200 195
DN110 208
DN125 215 233 206
DN150 225 242 217
DN180 249
DN200 261 263 238
DN250 281 298
DN300 293 317
DN350 306 329
DN400 321
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English
Welding tab with radius, in
stainless steel
Type 8041
Technical data
Table 4 : Dimension H in mm of the flowmeter 8041 with a clamp
connection and inserted into an S020 fitting
H
T-fitting
Welding socket
DN32 181 181
DN40 186 186
DN50 191 191
DN65 199 199
DN80 205 205
DN100 211 211
6.4. General data
Pipe diameter DN06 to DN400
Type of fitting S020
Fluid conductivity > 20 µS/cm
1)
Determined in the following reference conditions: fluid = water, water
and ambiant temperatures = 20 °C, upstream and downstream distances
respected, appropriate pipe dimensions
Fluid temperature
• with holder of the flow
sensor in stainless steel
• with holder of the flow
sensor in PVDF
Fluid pressure
• with holder of the flow
sensor in stainless steel
• with holder of the flow
sensor in PVDF
Flow rate measurement
• Measuring range
• Linearity
• Repeatability
• Accuracy with standard
K factor
• Accuracy with Teach-in
The fluid temperature may be
restricted by the fluid pressure and
the material of the S020 fitting used
(see Fig. 6 and Fig. 7).
• -15...+150 °C
• 0...+80 °C
The fluid pressure may be restricted
by the fluid temperature, the material
of the S020 fitting used and the DN
of the S020 fitting used (see Fig. 6
and Fig. 7).
• PN10 with a fitting in plastic,
PN16 with a fitting in metal
• PN10
• 0,2 to 10 m/s
1)
• ±0,5% 1) of the full scale
1)
• ±0,25%
• ±3,5%
• ±0,5%
of the measured value
1)
of the measured value
1)
of the measured value
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11
Type 8041
Technical data
P [bar]
10
9
8
7
6
5
4
3
2
1
0
PVC + PP
+10
PVDF (PN10) / Metal
PVC (PN10)
+30
PP (PN10)
+50 +70
T [°C]
Fig. 6: Fluid pressure-temperature dependency of the 8041 with a
flow sensor holder in PVDF, inserted into an S020 fitting in
metal, PVDF, PVC or PP
P (bar)
16
15
14
13
12
PVDF
11
10
9
8
PVC + PP
7
6
5
4
3
2
1
0
-20 0 +20 +40 +60 +80 +100 +120
Metal
(PN16)
PVC (PN10)
PP (PN10)
1)
DN100 for measuring
devices with a clamp con-
nection (PN10)
PVDF (PN10)
+150
T (°C)
1)
Except DN100 for measuring devices with a clamp connection
Fig. 7: Fluid pressure-temperature dependency of the 8041 with a
flow sensor holder in stainless steel, inserted into an S020
fitting in metal, PVDF, PVC or PP
6.5. Electrical data
Power supply 18-36 V DC, filtered and regulated
Current consumption 220 mA (at 18 V DC)
Power source (not
supplied)
limited energy source (in accordance to
UL 61010-1, paragraph 9.3)
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English
Type 8041
Technical data
Current output
• Type of output
• Accuracy
• Refresh time
• Max. loop impedance
• 4-20 mA, sinking or sourcing wiring
• ± 1% (0,16 mA)
• 100 ms
• 1100 W at 36 V DC, 330 W at
18 V DC
Frequency output
• Frequency
• Duty cycle
• Max current
• Protected against
• 0-240 Hz
• 50 % ± 1 %
• 100 mA max.
• yes
short-circuits and
polarity reversal
Relay output • Normally open or normally closed,
depending on the wiring
• 3 A, 250 V AC max.
Alarm
• Full scale exceeded
• Error signal
• 22 mA and 256 Hz
• 22 mA and 0 Hz
6.6. Electrical connections
Type of connection Through two M20x1,5 cable
glands
Cable specifications
• cable type
• Cross section
• shielded
• 0,5 to 1,5 mm
2
• Diameter of each cable:
- if only one cable is used
- 6...12 mm
per cable gland
- if two cables are used per
cable gland
- 4 mm, with the supplied
multi-way seal
6.7. K factors
The S020 fitting with weld end connections is available
in two versions: a version for the measuring devices with
a G2'' nut and a version for the measuring devices with a
clamp connection.
• Use the K factor of the fitting used.
The device measures the flow velocity (in m/s) of the fluid and converts
it into a current (in mA) and a frequency rating (in Hz).
The current I or the frequency f are proportional to the flow rate Q (l/s),
the proportionality factor is called the "K factor":
f = K1*Q
*Q + 4
I = K
2
and K2 in pulse/litre
with K
1
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13
Type 8041
Quick installation
The following formulae are used to calculate the K1 and K2 factors
needed to convert the current or frequency into a flow rate:
Full scale K factor K
10 m/s
K1 =
K
5 m/s
K1 =
K
2 m/s
K1 =
K
where K
= K factor of the S020 fitting used
fitting
100
fitting
200
fitting
500
fitting
1
K2 =
3*K
K2 =
3*K
K2 =
3*K
K factor K
20
fitting
40
fitting
100
fitting
2
Example:
If the full scale of the device is set to 5 m/s, the value of the current
output will be:
I = 40 Q + 4
3*K
fitting
with I in mA, K
in pulse/litre and Q in l/s.
fitting
7. QUICK INSTALLATION
→ Unpack the device.
No
Order code
correct?
yes
Contact your Bürkert
agent
→ Loosen 4 screws and remove
cover.
→Select the frequency of the main
supply with switch 1, see chap.
9.4.
→ Select the filter with switches 2
and 3, see chap. 9.5.
→ Select the current output type,
see chap. 8.3.1.
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Type 8041
Quick installation
→ Select the measuring range with
switches 4 and 5, see chap. 9.6.
→ Install the device on the
pipe.
Calibrate the full scale of
the installation?
No
→ Thread the cables through the
cable glands and make the connections to the electronic board,
see chap. 8.3.
→ Connect the shield on the
power cable to the earth, see
chap. 8.3.
→ Fill the pipe.
→ Energize the device.
→ Calibrate the flow zero
point, see chap. 9.7.
yes
→ Calibrate the full scale, see
chap. 9.8.
The 10 bargraph LEDs
go ON?
yes
No
→Set the relay output parameters,
see chap. 9.9.
English
→ Make
sure the fluid
velocity > 2 m/s and
< 10 m/s.
15
Type 8041
INstallation
8. INSTALLATION
Green LED flashes once?
yes
→ Put the cover on the device as
dsecribed in Fig. 17, chap. 8.3.
→ Tighten the 4 screws of the
cover in an alternating pattern.
The device is ready for use.
No, see chap. 10.5
8.1. 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 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.
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.
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