Burkert 8081 User Manual [en, de, fr]
Type 8081
Water flow rate transmitter
Wasser-Durchfluss-Transmitter
Transmetteur de débit d’eau
Operating Instructions
Bedienungsanleitung
Manuel utilisateur
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2008-2012 Bürkert S.A.S
Operating Instructions 1208/2_EU-ML_00560456
Contents:
Type 8081
Water flow rate transmitter type 8081
1. ABOUT THIS MANUAL .................................................................................5
1.1. Symbols used .......................................................................................5
2. INTENDED USE ................................................................................................6
3. BASIC SAFETY INFORMATION ...............................................................6
4. GENERAL INFORMATION ...........................................................................7
4.1. Manufacturer's address and international contacts .........7
4.2. Warranty conditions ...........................................................................7
4.3. Information on the Internet ............................................................7
5. DESCRIPTION ...................................................................................................8
5.1. Area of application .............................................................................8
5.2. General description ...........................................................................8
5.2.1. Design ...................................................................................... 8
5.2.2. Measuring item and principle .............................................8
5.3. Description of the name plate .....................................................9
5.4. Order codes ........................................................................................10
6. TECHNICAL DATA ........................................................................................11
6.1. Conditions of use ............................................................................. 11
6.2. Conformity to standards and directives...............................11
6.3. General technical data .................................................................. 12
6.3.1. Mechanical data ..................................................................12
6.3.2. General data .........................................................................13
6.3.3. Electrical characteristics ....................................................14
6.3.4. Electrical connections ........................................................14
7. INSTALLATION AND WIRING .................................................................15
7.1. Safety instructions...........................................................................15
7.2. Installation onto the pipe ............................................................. 15
7.3. Electrical wiring .................................................................................17
7.3.1. Assembly of the female cable plug (order code
438680) ................................................................................18
7.3.2. Wiring of the 5-pin M12 fixed connector ......................18
7.3.3. Connecting the pulse output ............................................19
7.3.4. Only connecting the current output ................................19
7.3.5. Connecting both the current and pulse outputs ..........20
8. COMMISSIONING ........................................................................................ 20
8.1. Safety instructions...........................................................................20
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3
9. ADJUSTMENT AND FUNCTIONS..........................................................................................................................................................................21
9.1. Safety instructions...........................................................................21
9.2. Adjustment of the 8081 ................................................................21
10. MAINTENANCE ...........................................................................................21
10.1. Safety instructions...........................................................................21
10.2. Cleaning ................................................................................................ 22
11. PACKAGING, TRANSPORT ...................................................................22
12. STORAGE ....................................................................................................... 22
13. DISPOSAL OF THE PRODUCT ........................................................... 23
Type 8081
Contents
4
english
Type 8081
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.
CAUTION
Warns against a possible risk.
• Failure to observe this warning can result in substantial or minor
injuries.
NOTICE
Warns against material damage.
• Failure to observe this warning can 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.
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5
Type 8081
intended use
2. INTENDED USE
Use of the ultrasonic flow rate transmitter that does not comply with the instructions could present risks to people, nearby
installations and the environment.
• The 8081 transmitter is intended solely for the measurement of
the flow rate in water or neutral liquids.
• If possible, avoid placing this device near sources of electromagnetic interference
• This device must be protected against ultraviolet rays and, when
installed outdoors, the effects of the 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 user manual.
• The device can only be used together with devices and components recommended and/or approved by Bürkert.
• Requirements for safe and proper operation 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 assembly,
use and maintenance of the devices.
• the local safety regulations that the operator must ensure the staff
in charge of assembly observe.
Danger due to high pressure.
Danger due to high temperatures of the fluid.
Danger due to electrical voltage.
Various dangerous situations
To avoid injury take care:
• to prevent any power supply switch on.
• to carry out the installation and maintenance work by qualified and
skilled staff with the appropriate tools.
• 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 compliance
with the instructions provided in the user manual
• to observe the general technical rules during the planning and
use of the device.
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Type 8081
General information
4. GENERAL INFORMATION
Various dangerous situations
To avoid injury take care:
• not to use the type 8081 ultrasound flow rate transmitter in a
potentially explosive atmosphere.
• not to use fluid that is incompatible with the materials of which
the transmitter is made.
• 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. Do not paint
or varnish any part of the device.
NOTICE
Elements / Components sensitive to electrostatic discharges
• This device contains electronic components sensitive to electrostatic discharges. They can get 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 61340-5-1
and 5-2 norms.
• Also ensure that you do not touch any of the live electrical components.
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 can be found on the
last pages of this manual. They are also available on the Internet at:
www.burkert.com
4.2. Warranty conditions
The condition governing the legal warranty is the conforming use of
the 8081 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 8081 at: www.burkert.com
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7
Type 8081
Description
5. DESCRIPTION
5.1. Area of application
The ultrasonic flow rate transmitter type 8081 is intended for the
measurement of water flow rates which may be slightly charged with
contaminants.
5.2. General description
5.2.1. Design
The 8081 ultrasonic flow rate transmitter consists of an electronic
module and a brass fitting with a built-in measuring tube. When
combined with a controller and a control loop, it enables a control
loop to be established.
The electrical connection is made via a 5-pin M12 fixed connector.
The transmitter features, depending on the version:
• a pulse output or
• a pulse output and a 4-20 mA current output;
Each version is available for 5 different flow rate ranges:
• model QN 0.6 DN15: 0.06 to 20 l/min
(nominal flow rate 0.6 m
• model QN 1.5 DN15: 0.1 to 50 l/min
(nominal flow rate 1.5 m
• model QN 2.5 DN20: 0.16 to 82 l/min
(nominal flow rate 2.5 m
3
/h namely 10 l/min)
3
/h namely 25 l/min)
3
/h namely 41 l/min)
• model QN 3.5 DN25: 0.6 to 116 l/min
(nominal flow rate 3.5 m
• model QN 6 DN25: 1 to 200 l/min
(nominal flow rate 6 m
3
/h namely 58 l/min)
3
/h namely 100 l/min)
5.2.2. Measuring item and principle
The 8081 flow meter is based on the transit time method. This consists in measuring the transit times of the sound from emitter 1 to
receiver 2 and from emitter 2 to receiver 1 and subsequently comparing both values. The calculated transist time difference is directly
proportional to the flow speed of the fluid.
emitter-receiver emitter-receiver
ultrasonic
wave 1
ultrasonic
wave 2
The electronic module then delivers a pulse signal proportional to
the volume or an industry-standard 4-20mA signal, proportional to
1 2
t
0
t
t
1
2
∆t
Direction
of flow of
the fluid
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Type 8081
1
3 4 2
Description
the flow rate or to the temperature.
5.3. Description of the name plate
1. Measured quantity, type of flow meter
2. Supply voltage
3. Measuring principle
4. Nominal flow rate
5. Output data
6. Process connection
7. Flow rate range
8. Manufacturing code
9. Serial number
10. Order code
11. Materials: housing, seal
FLOW8081 ULTRAS QN2.5
NPN/PNP : 0,7A - 36VDC
12-36 VDC 4-20mA G1
MSEPDMFKM
S/N 1000
Made in France
00559869
0,16-82L/MIN
W41LP
9 11 710
5
6
8
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9
5.4. Order codes
Type 8081
Description
QN
0,6 15
1,5 15
10
DN
0.06 to
20 l/min
0,1 to
50 l/min
Flow rate range
Connection
G 3/4'' external thread
NPT 3/4'' external thread
G 3/4'' external thread
NPT 3/4'' external thread
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Outputs
Pulse, NPN 560131
Pulse, PNP +
4-20 mA, sourcing
mode
Pulse, NPN 560612
Pulse, PNP +
4-20 mA, sourcing
Pulse, NPN 559865
Pulse, PNP +
4-20 mA, sourcing
mode
Pulse, NPN 560613
Pulse, PNP +
4-20 mA, sourcing
mode
Ordering codes
560113
560617
559868
560618
QN
2,5 20
3,5 25
DN
0,16 to
82 l/min
0,6 to
116 l/min
Flow rate range
G 1'' external
thread
NPT 1'' external thread
G 1 1/4'' external thread
NPT 1 1/4''
external
thread
Connection
Pulse, NPN 559866
Pulse, PNP +
4-20 mA, sourcing
mode
Pulse, NPN 560614
Pulse, PNP +
4-20 mA, sourcing
mode
Pulse, NPN 559867
Pulse, PNP +
4-20 mA, sourcing
mode
Pulse, NPN 560615
Pulse, PNP +
4-20 mA, sourcing
mode
Outputs
Ordering codes
559869
560619
559870
560620
QN
6 25
DN
1 to
200 l/min
Flow rate range
Type 8081
Technical data
Connection
G 1 1/4'' external thread
NPT 1 1/4''
external
thread
Outputs
Pulse, NPN 560132
Pulse, PNP +
4-20 mA, sourcing
mode
Pulse, NPN 560616
Pulse, PNP +
4-20 mA, sourcing
mode
Ordering codes
560114
560621
6. TECHNICAL DATA
6.1. Conditions of use
Ambient temperature: +5 to +55 °C
Storage temperature: +5 to +55 °C
Air humidity: < 80%, not condensated
Protection rating: IP65 with cable plug plugged-in and
tightened
6.2. Conformity to standards and
directives
EMC: EN61000-6-3, 61000-6-2
Vibration: EN 60068-2-6
Shock: EN 60068-2-27
Pressure: complying with article 3 of §3 from 97/23/CE directive
For the 97/23/CE pressure directive, the device can only be used in
the following cases (depending on max. pressure, pipe diameter and
fluid)
Type of fluid Conditions
Fluid group 1, §1.3.a Forbidden
Fluid group 2, §1.3.a
Fluid group 1, §1.3.b Forbidden
Fluid group 2, §1.3.b Allowed
Allowed (PN*DN
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≤ 1000)
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Type 8081
Technical data
6.3. General technical data
6.3.1. Mechanical data
Item Material
Housing, cover PPS
Seal in contact with
the environment
M12 connector
Fitting
Measuring tube PES
Seal in contact with
the fluid
Silicone
PA
Brass
EPDM, FKM
Dimensions [mm]
B
L5
Hh
A
L1
L3
L4
L2
DN A B H h L1 L2 L3 L4 L5
15 G or NPT 3/4'' 65.5 76.5 14.5 110 90 58 6.5 19.5
20 G or NPT 1'' 65.5 79 18 130 90 58 6.5 19.5
25 G or NPT 1 1/4'' 65.5 83.5 23 260 90 58 6.5 19.5
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Type 8081
Technical data
6.3.2. General data
Pipe diameter DN15 to DN25
Type of fluid water (or neutral liquids on request)
Fluid temperature 5 to 90°C
Fluid pressure PN 16
Measuring range 0.06 to 200 l/min
Accuracy (see curves on
next page)
Repeatability 1% of measured value
Measuring element 2 ultrasound emitter-receiver cells
* Full Scale, see measuring range on the diagram of measurement accuracy.
1)
Reference conditions: fluid = water, water and ambient temperatures = 20°C
± (0.01 % of Full Scale* + 2% of
measured value)
1)
Measurement accuracy
Max. measurement
deviation in %
10
8
6
4
2
0
-2
-4
-6
-8
-10
0,1 1 10 100 1000
max DN15
max DN20
max DN25
Flow rate in l/min
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13
Type 8081
Technical data
6.3.3. Electrical characteristics
Supply voltage (V+) 12-36 VDC
Current consumption • Own consumption: < 4 mA
• Consumption with load: < 1A
Pulse output
(transistor)
• version without
current output
• NPN as default setting; (PNP on
request), open collector, 5 mA min.,
700 mA max., NPN output: 0,2-36 VDC
• version with cur-
rent output
• PNP as default setting; (on request:
NPN for the pulse output and sinking mode for the current output), open
collector, 5 mA min., 700 mA max.,
PNP output: supply voltage (V+)
If QN=0.6 or 1.5: 1 pulse corresponds
to a volume V = 0.002 l (K factor =
500 pulse/litre)
If QN=2.5 or 3.5: 1 pulse corresponds
to a volume V = 0.005 l (K factor =
200 pulse/litre)
If QN=6: 1 pulse corresponds to
a volume V = 0.01 l (K factor =
100 pulse/litre)
Current output 4-20 mA (sourcing mode as default set-
ting; on request: sinking mode for the current output and NPN for the pulse output)
corresponding to the flow rate range of
the selected model (default setting) or to a
temperature range (on request)
max. loop resistance :
1100 W at 36 V DC
610 W at 24 V DC
100 W at 12 V DC
Protection against:
reversed polarity
voltage peaks
short-circuits
Recommended cable
type
yes
yes
yes, for the pulse output
max. cross section of 1.5 mm
2
6.3.4. Electrical connections
Flow rate meter
version
Any version female 5-pin M12 cable plug (available as an
Type of cable plug
accessory; Order code 438680)
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Type 8081
Installation and wiring
7. INSTALLATION AND WIRING
7.1. Safety instructions
DANGER
Risk of injury due to high pressure
• Cut off the pressure and depressurize the pipes before loosening
the pipes and connections.
Risk of injury due electrical discharge.
• Before starting work, make sure that you switch off the supply
voltage and secure it to prevent restarting.
• Observe all applicable accident protection and safety guidelines
for electrical equipment.
WARNING
Risk of injury due to non-conforming installation.
• The electrical and fluid installation can only be carried out by quali-
fied and skilled staff with the appropriate tools
• Install appropriate safety devices (correctly rated fuse and/or
circuit-breaker).
• Use cables with an operating temperature limit which is suitable
for your application.
• Under normal conditions of use, cables with a 0.75 mm
section should be enough to transmit the signal.
2
cross
WARNING
Risk of injury due to unintentional switch on of power supply or
uncontrolled restarting of the installation.
• Take appropriate measures to avoid any involuntary activation of
the installation.
• Guarantee a set or controlled restarting of the process subsequent
to the assembly of the device.
NOTICE
When the cover is removed, the transmitter may be damaged
through any element touching the electronics, and the tightness
of the transmitter is no longer ensured.
• Do not dismantle the device
7.2. Installation onto the pipe
DANGER
Risk of injury due to high pressure in the installation.
• Cut off the pressure and depressurize the pipes before loosening
the pipes and connections.
The 8081 ultrasonic flow rate transmitter can be fitted onto a horizontal or vertical pipe.
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15
Type 8081
Installation and wiring
When horizontally
Correct
Correct
Incorrect
Incorrect
mounted, the max. fluid
temperature is 90°C.
But the max. fluid temperature must be reduced to 80°C when the
electronics (black enclosure) is turned upwards.
When vertically mounted
the max. fluid temperature is also 80°C.
→ Please be careful to respect the correct direction of fluid
flow in the pipe. It is indicated with an arrow, marked on the
underside of the fitting.
It is advisable to avoid placing the 8081 transmitter near
any source of electromagnetic interference (switch, electric
motor, fluorescent lamp, ...).
Minimum upstream and downstream distances are not necessary.
The 8081 works correctly when the pipe is full and free of any air
bubbles near the transmitter. In presence of bubbles in the pipe, the
left installation no.1 should be avoided.
1 2 3 4
If the absence of any air bubbles cannot be guaranteed, the device
should then be fitted on an horizontal pipe, with the electronic enclosure facing down. Thus the bubbles will not interfere with the circulation of ultrasonic waves.
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Type 8081
Installation and wiring
NOTICE
When mounting the device on the pipe, the M12 fixed connector
may be damaged.
If the M12 fixed connector is damaged the device cannot be used
anymore.
• Please be careful not to damage the M12 fixed connector when
mounting the device on the pipe.
7.3. Electrical wiring
DANGER
Risk of injury due to electrical discharge
• Before starting work, make sure that you switch off the supply
voltage and secure it to prevent restarting.
• Do not install the cable near high voltage or high frequency cables.
• If this is unavoidable, keep to a minimum clearance of 30 cm.
• Observe all applicable accident protection and safety guidelines
for electrical equipment
• The power supply must be filtered and regulated.
→ Make sure the installation is earthed equipotentially
(power supply - 8081).
→ Connect the different earth connections of the installation to
one another in order to remove any differences in potential
which may arise between the two earth connections.
→ Connect the cable shielding to the earth. Connect the nega-
tive terminal of the power supply to the earth to remove the
effects of the common mode currents. If this connection cannot be made directly, a 100 nF/50 V capacitor can be fitted
between the negative terminal of the power supply and the
earth.
(*) If a direct earthing
connection is not possible, fit a 100 nF/50 V
capacitor between the
negative terminal of the
power supply and the
earth.
(**)
+
-
12-36VDC
(*)
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(**) If your cable is
shielded.
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Type 8081
4
5
3
1
2
0 VDC
V+
(12-30 VDC)
4
5
3
1
2
0 VDC
V+
(12-30 VDC)
Installation and wiring
7.3.1. Assembly of the female cable plug
(order code 438680)
1 2
3 4 5
→ Fully unscrew terminal
block [1]
→ Remove body [2].
→ Unscrew clamping nut [5].
→ Pass cables through
clamping nut [5], then
through clamp ring [4]
and gasket [3], and finally
through body [2].
→ Wire terminal block [1]
(acc. to 8.3.2, 8.3.3, 8.3.4
or 8.3.5)
→ Screw terminal block [1]
onto body [2].
→ Insert gasket [3] and clamp
ring [4] into body [2].
→ Screw clamping nut [5].
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7.3.2. Wiring of the 5-pin M12 fixed
connector
Not connected
(*)
Pulse output
(NPN default
setting)
(*) Functional earth connection
Wiring a version with pulse
output
Pin of M12 cable plug with a 2-m
cable available as accessory
(order code 438680)
1 brown
2 white
3 blue
4 black
5
4-20 mA
(*)
Pulse output
(PNP default
setting)
Wiring a version with pulse and
current outputs
Colour of wire
grey
Type 8081
Installation and wiring
7.3.3. Connecting the pulse output
The pulse output is connected in NPN mode (default setting on a
version without current output) or in PNP mode (default setting on a
version with current output).
Load
white
3
blue
NPN connection
2
5
4
brown
1
grey
+ -
12-36 VDC
Load
white
2
3
4
blue
PNP connection
brown
5
1
grey
12-36 VDC
+ -
7.3.4. Only connecting the current output
The current output, where present, is connected in source mode
(default setting) or in sink mode (on request).
4-20 mA
input
+ -
2
5
brown
black
1
3
4
grey
blue
+ -
Supply
12-36 VDC
Source mode connection
(default setting)
(*) If a direct earthing connection is not possible, fit a 100 nF/50 V capacitor between the negative terminal of the power supply and the earth.
(*)
4-20 mA
input
+ -
2
5
brown
1
3
4
black
grey
blue
Sink mode connection
(on request)
+ -
Supply
12-36 VDC
(*)
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19
Type 8081
Commissioning
7.3.5. Connecting both the current and
pulse outputs
Load
white
2
brown
3
1
4
blue
black
+ -
4-20 mA
input
12-36 VDC
grey
(*)
+ -
Supply
PNP/sourcing mode connection
(default setting)
(*) If a direct earthing connection is not possible, fit a 100 nF/50 V capacitor
between the negative terminal of the power supply and the earth.
Load
white
2
brown
3
1
4
blue
black
+ -
4-20 mA
input
12-36 VDC
grey
+ -
(*)
Supply
NPN/sinking mode connection
(on request)
8. COMMISSIONING
8.1. Safety instructions
WARNING
Danger due to non-conforming commissioning.
Non-conforming 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 standard
operating practices.
• The device/installation must only be commissioned by suitably
trained staff.
• Protect the device against electromagnetic interference, ultraviolet rays and, when installed outdoors, the effects of the climatic
conditions.
20
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Type 8081
Adjustment and functions
9. ADJUSTMENT AND FUNCTIONS
9.1. Safety instructions
WARNING
Risk of injury due to non-conforming adjustment.
• The operators in charge of adjustment must have read and understood the contents of this manual.
• In particular, observe the safety recommendations and standard
operating practices.
• The device/installation must only be adjusted by suitably trained
staff.
9.2. Adjustment of the 8081
• Pulse output:
The pulse output delivers a frequency in proportion to a volume.
A pulse is generated each time a set volume passes, i.e. either
V = 0.002 litre (for a model with QN = 0.6 or 1.5) or V = 0.005 litre (for a model with QN = 2.5 or 3.5) or V = 0.01 litre (for a model with QN = 6).
• Current output:
The current output, where present, is pre-programmed on the cur-
rent range corresponding to the flow rate range (QN0.6, QN1.5,
QN2.5, QN 3.5 or QN6) of the selected 8081 model.
10. MAINTENANCE
10.1. Safety instructions
DANGER
Risk of injury due to high pressure in the installation.
• Cut off the pressure and depressurize the pipes before loosening
the pipes and connections.
Risk of injury due to electrical discharge.
• Before starting work, be sure to switch off the supply voltage and
secure it to prevent restarting.
• Observe the applicable accident prevention and safety regulations
for electrical equipment.
WARNING
Danger due to non-conforming maintenance.
• Maintenance must only be carried out by qualified and skilled staff
with the appropriate tools.
• Following maintenance, ensure a controlled restart.
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