Burkert 8071 User manual

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8071
Flowmeter with oval rotors
Durchfluss-Messgerät mit Ovälradern
Débitmètre à roues ovales

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2010-2013 Bürkert SAS
Operating Instructions 1307/5 EU-ML_448739_ORIGINAL_FR

Type 8071
1. ABOUT THIS MANUAL ................................................................................4
1.1. Symbols used ......................................................................................4
1.2. Definition of the word "device" ...................................................4
2. INTENDED USE ...............................................................................................5
3. BASIC SAFETY INFORMATION ..............................................................5
4. GENERAL INFORMATION .......................................................................... 7
4.1. Contacts ..................................................................................................7
4.2. Warranty conditions ..........................................................................7
4.3. Information on the Internet ...........................................................7
5. DESCRIPTION ..................................................................................................7
5.1. Area of application ............................................................................ 7
5.2. General description .......................................................................... 7
5.3. Description of the name plate ....................................................8
5.4. Available versions ..............................................................................9
6. TECHNICAL DATA ....................................................................................... 11
6.1. Conditions of use ............................................................................ 11
6.2. General data ...................................................................................... 11
6.3. Dimensions ........................................................................................ 12
6.4. K factors (in pulse/l) ..................................................................... 13
7. INSTALLATION AND WIRING ................................................................ 13
7.1. Safety instructions.......................................................................... 13
7.2. Installation instructions ............................................................... 14
7.3. Wiring ..................................................................................................... 15
8. COMMISIONING .......................................................................................... 16
8.1. Safety instructions.......................................................................... 16
9. MAINTENANCE AND TROUBLESHOOTING ................................. 16
9.1. Safety instructions.......................................................................... 16
9.2. Maintenance of the strainer ...................................................... 17
9.3. Maintenance of the device ......................................................... 17
9.4. Dismantle the device .................................................................... 17
9.5. Assemble the device ..................................................................... 18
9.6. If a problem occurs ........................................................................ 19
10. SPARE PARTS AND ACCESSORIES .............................................. 20
11. PACKAGING, TRANSPORT .................................................................. 21
12. STORAGE ...................................................................................................... 21
13. DISPOSAL OF THE DEVICE ................................................................ 21
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Type 8071

4
About this manual
Type 8071
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.
• 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 8071.
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Intended use
Type 8071
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 device is intended to measure the flow rate of fluids, espe-
cially of viscous fluids.
• This device must be protected against electromagnetic interfe-
rence, 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 contrac-
tual documents and in the user manual.
• 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 that the operator must ensure the staff
in charge of installation and maintenance observe.
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.
• Ensure that installation and maintenance work are carried out by
qualified, authorised personnel in possession of the appropriate
tools.
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Basic safety information
Type 8071
Various dangerous situations
To avoid injury take care:
• to guarantee a set or controlled restarting of the process, after a
power supply interruption.
• to use the device only if in perfect working order and in com-
pliance with the instructions provided in the instruction manual.
• to observe the general technical rules when installing and using
the device.
• not to use the device in an explosive atmosphere.
• not to use this 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 use the device for the measurement of gas flow rates.
• 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 modifications to the device. not to paint
or varnish any part of the device.
note
The device may be damaged by the fluid in contact with.
• Systematically check the chemical compatibility of the compo-
nent 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 com-
pounds, ketones, halogenated aromatics or hydrocarbons,
oxidants and chlorinated agents).
note
Elements / Components sensitive to electrostatic discharges
This device contains electronic components sensitive to electros-
tatic discharges. They may be damaged if they are touched by an
electrostatically charged person or object. In the worst case sce-
nario, 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 61340-
5-1 and 5-2 norms.
• Also ensure that you do not touch any of the live electrical
components.
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General information
Type 8071
4. GENERAL INFORMATION
4.1. Contacts
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 device 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 8071 at: www.burkert.com
5. DESCRIPTION
5.1. Area of application
The device is intended to measure, thanks to its oval rotors, the flow
rate of viscous fluids. It must be combined with a remote instrument
(such as transmitter type 8025 Universal or batch controller type 8025
Batch) which converts the pulse frequency due to oval rotors rotation.
5.2. General description
5.2.1. Construction
The device is built of a fitting which includes oval rotors and of a cover
including the electronic module with Hall effect sensor and Reed switch.
The oval rotors of the fitting contain magnets.
All the device versions provide an NPN transistor output and a Reed
switch output.
The electrical connection is made by a 1 meter 5-wire cable.
5.2.2. Measuring principle
When the fluid flows through the pipe, the oval rotors which contain
magnets turn (see Fig. 1). The displacement of magnets lead to a
variation of magnetic field. The sensor measures the variation of the
magnetic field and converts the signal into a frequency. The frequency
is available at both the NPN transistor and Reed switch outputs.
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Description
Type 8071
Fig. 1: Running/displacement of oval rotors
The remote instrument converts the frequency into a flow rate by
using the correct K factor.
5.3. Description of the name plate
1
2
3
4
5
Model
Flow Range
Max Pressure
Max Temp
Serial No
Type 8071 Flow Sensor
433864N
2-100LPH
1000kPa/55Bar
120°C
D34128
Fig. 2: Name plate of the device
1. Order code of the device
2. Flow rate measuring range
3. Max. pressure
4. Max. temperature
5. Serial number
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Description
Type 8071
5.4. Available versions
Process
connection
Flow rate range Materials
Max.
pressure 1) Order code
Viscosity
> 5 mPa.s and
< 1000 mPa.s
Viscosity
< 5 mPa.s Housing Rotors / axis Seal
G 1/8'' 0.5-100 l/h 2-100 l/h Aluminium Stainless steel FKM 5 bar 565117
Stainless steel Stainless steel FFKM 55 bar 565118
NPT 1/8'' 0.5-100 l/h 2-100 l/h Aluminium Stainless steel FKM 5 bar 565119
Stainless steel Stainless steel FFKM 55 bar 565120
Process
connection
Flow rate range Materials
Max.
pressure 1) Order code
Viscosity
> 5 mPa.s and
< 1000 mPa.s
Viscosity
< 5 mPa.s Housing Rotors / axis Seal
G 1/4'' 0.5-100 l/h 2-100 l/h PPS PPS / Hastalloy C FFKM 5 bar 432288
Stainless steel Stainless steel FFKM 55 bar 433864
15-500 l/h 40-500 l/h PPS PPS / Hastalloy C FFKM 5 bar 430856
Stainless steel Stainless steel FFKM 55 bar 437518
NPT 1/4'' 0.5-100 l/h 2-100 l/h PPS PPS / Hastalloy C FFKM 5 bar 448654
Stainless steel Stainless steel FFKM 55 bar 448656
15-500 l/h 40-500 l/h PPS PPS / Hastalloy C FFKM 5 bar 448655
Stainless steel Stainless steel FFKM 55 bar 448657
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Description
Type 8071
Process
connection
Flow rate range Materials Max.
pressure 1) Order code2)
Viscosity > 1000 mPa.s Housing Rotors / axis Seal
G 1/4'' 15-500 l/h Stainless steel Stainless steel FFKM 55 bar 552426
NPT 1/4'' 15-500 l/h Stainless steel Stainless steel FFKM 55 bar 553652
1) High pressure versions available on request
2) Other high viscosity versions available on request
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Technical data
Type 8071
6. TECHNICAL DATA
6.1. Conditions of use
Ambient temperature
• Aluminium or PPS housing
• Stainless steel housing
• max. 80 °C
• max. 120 °C
Air humidity < 85%, non condensated
Protection rating IP54 (NEMA 13)
6.2. General data
6.2.1. Mechanical data
Part Material
Housing • Aluminium
• PPS
• Stainless steel 316F (1.4401)
Rotors • PPS
• Stainless steel 316F (1.4401)
Axis • Hastalloy C
• Stainless steel 316F (1.4401)
Seal FKM or FFKM
6.2.2. General data
Process connection Internal thread G 1/8" or G 1/4",
NPT 1/8’’or NPT 1/4’’
Max. fluid pressure
• PPS or aluminium housing
• Stainless steel housing
• 5 bar
• 55 bar (550 bar on request)
Viscosity Depends on the version (see
chap. 5.4)
Flow rate measuring range Depends on the version (see
chap. 5.4)
Accuracy ≤ ± 1 % of the measured value
Repeatability ≤ ± 0,03 % of the measured
value
Max. size of particles 75 µm
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Technical data
Type 8071
6.2.3. Electrical data
Supply voltage 4,5- 24 V DC
Tansistor output
• Type of output
• Hall sensor max. intensity
• Recommended load
• Frequency on open collector,
NPN, max. 25 mA, 4,5 to
24 V DC
• 25 mA
• 1,8 Kohm Pull up at 24 VDC
Reed switch output
• Type
• Max. switching voltage
• Max. switching current
• Max. operating current
• Number of cycles (typical)
• Frequency
• 30 VDC
• 0,5 A
• 0,5 A
• 500 x 106 cycles (at 10 VDC
and 10 mA)
Electrical connection 5-wire cable, 1m long
6.3. Dimensions
51/51/60*
36,5
60/50/64*
48
48
A24
51/51/60*
36,5
cable 1000 mm
* Aluminium / Stainless steel / PPS housing
A: 17...18 mm depending on the housing material
Fig. 3: Dimensions of the device
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Installation and Wiring
Type 8071
7. INSTALLATION AND WIRING
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 and isolate the electrical power source before
carrying out work on the system.
• Observe all applicable accident protection and safety regula-
tions for electrical equipment.
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 high fluid temperatures.
• Use safety gloves to handle the device.
• Stop the circulation of fluid and drain the pipe before loosening
the process connections.
• Keep all easily flammable material and fluid away from the
device.
6.4. K factors (in pulse/l)
Flow rate range K factor (in pulse/l)
0.5- 100 l/h 1000
15- 500 l/h 400
If the device is combined with an instrument which does not
automatically convert the K factors, make the conversion
using one of the following formulae:
K factor in pulse/gallon US = K factor in pulse/l x 3,785 to
obtain flow rate in gallon US / time unit
K factor in pulse/gallon UK = K factor in pulse/l x 4,546 to
obtain flow rate in gallon UK / time unit.
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Installation and Wiring
Type 8071
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 the appropriate security devices (correctly dimensioned
fuse and/or circuit breaker).
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 sub-
sequent to the installation of the device.
7.2. Installation instructions
note
Risk of damaging the device if it is subjected to mechanical
stress.
• Use flexible hoses.
note
The oval rotors may be damaged if particles with dia-
meter > 75 µm go into the fitting.
• Install a strainer of 75 µm upstream and as close as possible to
the device.
→Install a by-pass line on your installation to service the device
and the strainer without stopping the process (see Fig. 4).
valve
direction of flow
filter
8071
Fig. 4: Installation of a by-pass line
→Install the device onto the pipe so that the shafts of the rotors
are in a horizontal plane.
Seal the external threads of the fitting with a product com-
patible with the materials from which the device housing
and the pipe are made.
→Screw the device onto the pipe.
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Installation and Wiring
Type 8071
7.3. Wiring
danger
Risk of injury due to electrical voltage.
• Shut down and isolate the electrical power source before
carrying out work on the system.
• Observe all applicable accident protection and safety regula-
tions for electrical equipment.
• Use a high quality electrical power supply (filtered and
regulated).
• Make sure the installation is equipotential.
Red wire Power supply (+)
Black wire Power supply (-)
White wire NPN transistor output
Yellow wire Reed switch
Green wire Reed switch
Table 1: Connection wire assignment
7.3.1. Wiring the NPN transistor output and
the Reed switch output
X
V DC
L+ (4,5 - 24 V DC)
(red wire)
L- (black wire)
NPN transistor out-
put (white wire)
Ryellow wire
green wire
R=1,8 kW pull-up at 24 VDC
Fig. 5: Wiring of NPN transistor output and the Reed switch
output
8071
X
V DC
NPN
L-
L+
+-
IN
Remote transmitter
IN = pulse input on remote transmitter
Fig. 6: Example for the connection of the NPN transistor output to
a remote transmitter
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Commisioning
Type 8071
8. COMMISIONING
8.1. Safety instructions
Warning
Risk of injury due to nonconforming commissioning.
Non conforming commissioning may 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.
The pipe must be full of liquid whitout air bubbles.
→Drain air from the pipe by gradually filling the pipe with fluid.
→Make sure the installation is tight.
9. MAINTENANCE AND
TROUBLESHOOTING
9.1. 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 and isolate the electrical power source before
carrying out work on the system.
• Observe all applicable accident protection and safety regula-
tions for electrical equipment.
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 high fluid temperatures.
• Use safety gloves to handle the device.
• Stop the circulation of fluid and drain the pipe before loosening
the process connections.
• Keep all easily flammable material and fluid away from the
device.
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Maintenance and troubleshooting
Type 8071
9.4. Dismantle the device
5
4
1
2
3
grooves
Fig. 7: Exploded view of the device
→Unscrew the 4 screws (mark 5 Fig. 7) and remove the cover
including the electronic module (mark 4 Fig. 7).
→Remove the seal (mark 3 Fig. 7).
→Examine the seal for good condition. If not, replace it by a new
one (see chap. "10. Spare parts and accessories").
→Remove the rotors (mark 2 Fig. 7).
→Examine the rotors for good condition. If necessary, clean or
replace them (see chap. 10).
Warning
Risk of injury due to non-conforming maintenance.
• Maintenance must only be carried out by qualified and skilled
staff with the appropriate tools.
• Guarantee a set or controlled restarting of the process, after a
power supply interruption.
9.2. Maintenance of the strainer
→After the circulation of 200 liters of fluid, examine the strainer for
particles. If necessary clean the strainer with a product compa-
tible with the materials from which it is made.
→Regularly examine the strainer for good condition, in particular
when the flow rate decreases. If necessary clean the strainer
with a product compatible with the materials from which it is
made.
9.3. Maintenance of the device
→Regularly examine the seal and the oval rotors for good
condition. Follow the instructions on chap. 9.4 et 9.5.
Clean the device with a cloth slightly dampened with water or a
cleaning liquid compatible with the materials the device is made of.
Your Bürkert supplier is at your disposal for any further information.
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Maintenance and troubleshooting
Type 8071
9.5. Assemble the device
Put the magnetized rotor on the same side as the groove
(see Fig. 8 and table below).
→Put the rotors inside the housing, at 90° (see Fig. 8).
Neutral oval rotor (without magnet)
groove
Magnetized oval rotor
Fig. 8: Position of the oval rotors
Flow rate range Magnetized oval rotor
0.5-50 l/h hole of the magnet seat is visible (set towards
the cover)
• 0.5-50 l/h
• 2-100 l/h
• 15-500 l/h
hole of the magnet seat is not visible (set
towards the bottom of the housing)
→Set the radius of curvature present on the periphery of the oval
rotors towards the bottom of the rotor housing (see Fig. 9).
A A
A-A
round-off
right angle
Fig. 9: Cross-section of an oval rotor
→Make sure that the magnet is in place by using a detector.
→Make sure that the rotors freely turn by turning them slowly with
the finger.
→Put the seal (mark 3 Fig. 7) in its groove.
→Put the cover (mark 4 Fig. 7) on the housing, aligning the groove
on the cover with the one of the housing.
→Tighten the 4 screws (mark 5 Fig. 7), carefully to avoid damages
to the housing, and in an alternating pattern at the following
torque:
- 1 Nm for a PPS housing
- 2 Nm for an aluminium housing
- 9 Nm for a stainless steel housing
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Maintenance and troubleshooting
Type 8071
9.6. If a problem occurs
Problem Cause Solution
Fluid does not
flow through the
device any more
Obturated device →Remove and clean the oval rotors (see chap. "9.4. Dismantle the device" and
"9.5. Assemble the device").
→Add a strainer of 75 µm upstream of the device.
Obturated strainer (if present) →Clean the strainer.
Rotors damaged →Replace the rotors (see chap. "10. Spare parts and accessories", "9.4. Dis-
mantle the device" and "9.5. Assemble the device").
Reduced flow
rate through the
device
Strainer (if present) partially obturated →Clean the strainer.
Fluid too viscous Use rotors for fluids with a viscosity > 1000 mPa.s.
Incoherent
measurement
Flow rate range not adapted →Verify specifications, adjust the device or the flow rate (see chap. "6.2.2.
General data").
Air within the pipe →Slowly drain air from the pipe.
Friction due to an incorrect assembly
of the device →Verify the assembly of the rotors in the fitting (see chap. "9.4. Dismantle the
device" and chap. "9.5. Assemble the device").
No frequency
output
Incorrect wiring of the outputs →Make sure that the device has been wired correctly (see chap. "7.3. Wiring").
Rotors incorrectly mounted →Dismantle the device and modify the position of the rotors (see "9.4. Dismantle
the device" and "9.5. Assemble the device").
Magnet damaged →Replace the rotors (see chap. "10. Spare parts and accessories", "9.4. Dis-
mantle the device" and "9.5. Assemble the device").
Hall sensor or Reed switch defective →Replace the cover with electronic module (see chap. "10. Spare parts and
accessories", 9.4 and 9.5).
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Spare parts and accessories
Type 8071
10. SPARE PARTS AND
ACCESSORIES
caution
Risk of injury and damage caused by the use of unsuitable
parts.
Incorrect accessories and unsuitable spare parts may cause
injuries and damage the device and the surrounding area.
• Use only original accessories and original spare parts from
Bürkert.
Spare part Order code
Set of 2 oval rotors in stainless steel, flow rate
range of 0.5-100 l/h
550919
Set of 2 oval rotors in stainless steel, flow rate
range of 15-500 l/h
550920
Set of 2 oval rotors in PPS, flow rate range of
0.5-100 l/h
550921
Set of 2 oval rotors in PPS, flow rate range of
15-500 l/h
550922
FKM seal 550923
FFKM seal 550959
Cover in stainless steel with electronic module
including Hall effect sensor and Reed switch
553653
Spare part Order code
Cover in PPS with electronic module including
Hall effect sensor and Reed switch
553654
Cover in aluminium with electronic module
including Hall effect sensor and Reed switch
on request
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