Burkert 8712 User Manual
Type 8006 / 8702
MFM, Mass Flow Meter IP65
Type 8626 / 8712
MFC, Mass Flow Controller IP65
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2013 Bürkert SAS
Operating Instructions 1307/1_EU-ML 00563581
Type 8006, 8702 / 8626, 8712
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 INSTRUCTIONS .............................................................5
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 OF THE SYSTEM ............................................................7
5.1. General description ..............................................................................7
5.2. Operation of an MFM or MFC sensor ..........................................8
5.3. Detailed operation of an MFC .........................................................8
6. TECHNICAL DATA ........................................................................................11
6.1. Markings on the device.................................................................... 11
6.2. Conditions of use ................................................................................ 12
6.3. Compliance to standards and directives ................................ 13
6.4. Mechanical data ................................................................................... 13
6.5. Dimensions ............................................................................................13
6.6. Fluidic data .............................................................................................20
6.7. Electrical data .......................................................................................22
7. INSTALLATION AND COMMISSIONING ...........................................23
7.1. Safety instructions .............................................................................. 23
7.2. Prior to installation .............................................................................23
7.3. Description of the MFM / MFC ....................................................24
7.4. Sequence of the steps to be performed ................................ 24
7.5. Setting the parameters .................................................................... 24
7.6. Mechanical installation ..................................................................... 27
7.7. Fluid installation ................................................................................... 27
7.8. Electrical installation .........................................................................28
8. OPERATION AND FUNCTION ................................................................30
8.1. Safety instructions .............................................................................. 30
8.2. Operation of the MFM / MFC ........................................................30
8.3. MFC operating modes ...................................................................... 35
9. MAINTENANCE, TROUBLESHOOTING ............................................ 39
9.1. Safety instructions .............................................................................. 39
9.2. Maintenance ........................................................................................... 40
9.3. Troubleshooting ................................................................................... 42
10. ACCESSORIES / SPARE PARTS ......................................................45
10.1. Accessories ......................................................................................... 45
10.2. Spare part .............................................................................................48
11. SHUTDOWN .................................................................................................. 48
11.1. Safety instructions ........................................................................... 48
11.2. Dismounting of the MFM / MFC ............................................... 49
12. PACKAGING, STORAGE, TRANSPORT ..........................................49
12.1. Packaging, Transport ...................................................................... 49
12.2. Storage ................................................................................................... 49
13. RETURNING THE DEVICE ..................................................................... 50
14. DISPOSAL OF THE PRODUCT ........................................................... 50
English
3
Type 8006, 8702 / 8626, 8712
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.
• 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 a Mass Flow
Meter (MFM) type 8006 or 8702, or a Mass Flow Controller (MFC)
type 8626 or 8712.
English
4
Type 8626, 8712
Intended use
2. INTENDED USE
Nonconforming use of the MFM / MFC types 8006,
8702 / 8626, 8712 may pose a danger to people, nearby
equipment and the environment.
• Mass flow meter types 8006, 8702 are designed exclusively for
measuring the mass flow-rate of clean, dry gases.
• Mass flow controller types 8626, 8712 are designed for
controlling the mass flow-rate of clean, dry gases.
• Only use the fluids stated on the name plate and the calibration
protocol.
• Protect this device against electromagnetic interference,
ultraviolet rays and, when installed outdoors, the effects of the
climatic conditions.
• This device must be used in compliance with the specifications
and commissioning and use conditions specified in the
contractual 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 restrictions when the device is exported.
3. BASIC SAFETY INSTRUCTIONS
These safety instructions do not take into account:
• any contingencies or occurrences that may arise during
installation, use and maintenance of the devices.
• the local safety regulations, which the operating company is
responsible for ensuring the staff in charge of installation and
maintenance adhere to.
Danger from the heated surfaces when used for prolonged
periods.
• The device must be kept away from any highly flammable
materials or fluids.
• Wear protective gloves to handle the device.
Danger due to high pressure in the installation.
• Shut off the gas flow, relief the pressure and drain the pipe
before loosening the process connections.
Danger due to electrical voltage.
• Shut down and isolate the electrical power supply before
carrying out work on the system.
• Observe all applicable accident protection and safety
regulations for electrical equipment.
English
5
Type 8006, 8702
Basic safety instructions
Danger from the outflow of operating fluid
Respect the prevailing regulations on accident prevention and
safety relating to the operating fluids used.
Various dangerous situations
To avoid injury take care:
• to prevent unintentionally switching on the power supply.
• to ensure that installation and maintenance work is carried out
by qualified, authorized personnel in possession of the
appropriate tools,
• to keep the device away from any highly flammable materials or
fluids and avoid any contact with bare hands,
• to guarantee a defined or controlled restarting of the process,
after an interruption to the power supply or medium supply,
• to use the device only if in perfect working order and in compliance
with the instructions provided in the instruction manual,
• to observe best industry practice for the installation and use of
these devices,
• not to use MFM / MFC types 8006, 8702 / 8626, 8712 for
controlling and/or measuring the flow-rate of fluids which contain
particles (particle size > 25 µm),
• not to operate the device without the stainless steel mesh filter
disc installed at the factory,
• not to operate the device in a mounting position which deviates
from the calibration conditions,
• not to operate the device with higher pressures than the
specified tightness pressure (MFC) respectively calibration
pressure (MFM),
• 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. Do not feed any other
fluids into the system other than the designated operating
fluid indicated on the device name plate. Exception: agent for
cleaning and decontaminating the device (see also section
„9.2.1“). In doing so, observe the compatibility of the materials
used for the device. You will find a chemical compatibility chart
on our website, under:
www.burkert.com
Resistance Chart
If in doubt, contact the manufacturer.
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. During
electrostatic discharge, they will become defective immediately
or will fail when energized.
• To minimize or even avoid all damage due to an electrostatic
discharge, take all the precautions described in the standards
EN 61340-5-1 and 5-2.
• Also ensure that you do not touch any of the live electrical
components.
Documentation
Brochures
Chemical
6
English
Type 8626, 8712
General information
4. GENERAL INFORMATION
4.1. Manufacturer's address and international contacts
To contact the device manufacturer, use the following address:
Bürkert SAS
Rue du Giessen
F-67220 TRIEMBACH-AU VAL
The addresses of the international subsidiaries are available on the
web page at: www.burkert.com
4.2. Warranty conditions
The condition governing the legal warranty is the conforming use of
the MFM / MFC 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
MFM / MFC at: www.burkert.com
5. DESCRIPTION OF THE SYSTEM
5.1. General description
• Mass flow meter MFM types 8006, 8702 are devices designed for
measuring the mass flow-rate of clean, dry gases.
• Mass flow controller MFC types 8626, 8712 are devices designed
for controlling the mass flow-rate of clean, dry gases.
Type of device Type of sensor
MFM 8006 Inline
8702 MEMS
MFC 8626 Inline
8712 MEMS
5.1.1. General operation of the Mass Flow
Meter (MFM)
The MFM integrates a sensor for measuring the flow-rate. The measured
value for the mass flow-rate is transmitted to a remote device via an
analogue or a digital output (field bus).
English
7
Type 8006, 8702
Description of the system
5.1.2. General operation of the Mass Flow
Controller (MFC)
The MFC comprises:
• a sensor for measuring the mass flow rate,
• a control electronics,
• a control valve with low-friction and high sensitivity.
5.2. Operation of an MFM or MFC sensor
• The integrated flow-rate sensors use the thermal measurement
principle (anemometric and calorimetric) to measure the mass
flow-rate. The main components are a heating resistor and a
temperature probe. The gas which passes through the device
modifies the temperature difference measured between
both resistors.
• The thermal measurement principle allows the MFC to control the
required mass flow-rate completely independently of the pressure
and temperature fluctuations in the application concerned.
To obtain an output signal for the effective, dynamic
or uniform value, the damping of the output signal can
be changed with the "Mass Flow Communicator" software
(see section „10.1.3“).
On the MFMs and MFCs types 8712 and 8702, the
integrated sensor technology requires filters to be fitted
upstream of the product when highly soiled fluids are present.
5.3. Detailed operation of an MFC
x
out
w
= w-x
x
d
Gas
inlet
Fig. 1: Operating principle for the Mass Flow Controller
The control electronics compare the mass flow-rate (x) measured by
the integrated flow sensor with the mass flow-rate set-point value
(w) supplied to the MFC. The control electronics then calculate the
actuating variable (y) to be supplied to the solenoid valve to control
its opening. The flow-rate is either maintained at a constant value,
or modified to a predefined profile.
The control operates independently of fluctuations in pressure or
increases in the flow resistance which may be caused by soiling of the
filter. The rapidly responding solenoid valve and the sensor dynamics
define the overall response time.
The measured value for the mass flow-rate is also transmitted (xout) to
a remote device via an analogue output or a digital output (field bus).
x
Sensor
Control
electronics
y
Gas
outlet
Actuating element
(solenoid valve)
8
English
Type 8626, 8712
Description of the system
5.3.1. Control electronics
The control electronics:
• process the mass flow-rate set-point values and measured values,
• control the solenoid valve.
Set-point value
The set-point value (w) is transmitted either by an analogue input signal
or digitally via the serial or the field bus interface. If the set-point value
is supplied by analogue transmission, the following assignments are
applied:
Signal
range
4...20 mA 4 mA, w = 0 % 20 mA, w = 100 %
0...20 mA 0 mA, w = 0 % 20 mA, w = 100 %
0...5 V 0 V, w = 0 % 5 V, w = 100 %
0...10 V 0 V, w = 0 % 10 V, w = 100 %
For the control of a system where quick flow-rate changes are not
permitted, a ramp function can be activated. The settings for a raising
and a falling set-point value can be set separately.
More detailed information on the ramp function and on all
other functions can be found in the software documentation
for the MFM / MFC.
Control settings
The initial control settings are set at the factory.
Set-point associated
with the range min.
Set-point associated
with the range max.
• Amplification factors:
After start-up, the controller operates with amplification factors
dependent on the loop properties. When the autotune function runs,
these are determined automatically. This function enables the control
settings to be optimized for the system's actual conditions.
• Control dynamics setting:
The device has a setting which can change the control dynamics
with the aid of the "Mass Flow Communicator" software
(see section „10.1.3“). Its extreme effects are:
1. a very quick adjustment in which overshoots are possible.
This enables the controller to respond immediately to very low
control deviations; which causes the control to be very turbulent,
2. a slower adjustment to the required flow-rate. If the system is less
dynamic, the behaviour of the controller may be damped so that
minor fluctuations in the measured value or set-point value are only
adjusted slowly.
Zero point shut-off
A zero point shut-off is integrated to ensure the sealing function of the
valve. This is activated if the following conditions occur at the same time:
Set-point value < 2 % of
nominal flow-rate Q
(with control range 1:50)
If the zero point shut-off is active, the PWM signal is set to
0 % so that the valve is completely closed.
nom
Measured value < 2 % of
and
nominal flow-rate Q
(with control range 1:50)
nom
English
9
5.3.2. MFC solenoid control valve
The solenoid valve used for an MFC is a direct-acting, normally closed
solenoid control valve.
The orifice size of the solenoid valve is determined by the required
nominal flow-rate Q
the process and the density of the operating fluid.
If the device is operated within the specified pressure range,
the solenoid valve also takes over the sealing function
together with the control function. Limitation: in the case
of special hard seal materials, the sealing function cannot
be ensured. In this case an additional shut-off valve may
be required.
, the pressure and temperature conditions in
nom
Type 8006, 8702
Description of the system
10
English
Type 8626, 8712
Technical data
6. TECHNICAL DATA
attention
Risk of injury from pressure and outflow of fluid.
Important device-specific technical data is indicated on the name plate and the calibration plate (see section „6.1“).
• Observe the permitted fluid according to the name plate (depending on seal material).
• Observe the permitted pressure range on the calibration plate of the device.
6.1. Markings on the device
Fig. 2: Name plate, calibration plate
Examples:
English
Calibration plate
Calibration data 00182381
Medium 1
P1 : 0,800 barg
Mounting: horizontal upright
QC passed: 25.11.2011
Name plate
8006 35.0 Nm3/h
CH4
24V DC 13W DP
S/N 1004
00182381
Made in France
FKM
W49MM
11
Type 8006, 8702
Technical data
Type of the
device
Nominal flow rate
(Q
) and unit
nom
8006 35.0 Nm3/h
CH4
24V DC 13W DP
S/N 1004
00182381
Made in France
Item no. of the
Serial
number
Fig. 3: Details of a name plate
device
Item no. of the
Calibration data 00202378
Medium 1
P1: 0.700 barg
Mounting: Horizontal mounting
QC passed: 25.11.2011
W49MM
device
Operating medium
FKM
Material of the seal
Supply voltage
Max. power consumed
Output signal
Construction
code
Calibration fluid
Calibration
pressure
Mounting
position
Calibration date
6.2. Conditions of use
Warning
Risk of injury from malfunction due to effects of the weather!
The MFM / MFC is not designed for unrestricted use outdoors.
• Protect the device from direct sunlight.
• Observe the ambient temperature range of the device.
• Protect the device from humidity.
Setting Value
Ambient temperature Types 8702 / 8712: -10 °C to +50 °C
Types 8006 / 8626: -10 °C to +45 °C
For UL devices: 0 °C to 40 °C
Medium temperature for oxygen: -10 °C to +60 °C
Air humidity < 95%, without condensation
Relative humidity for UL
devices
Protection class
according to EN 60529
Absolute height above
sea level for UL devices
Operating environment Indoors, with pollution degree 2
for other fluids: -10 °C to +70 °C
80% up to a temperature of 31°C,
with a linear decrease to a relative
humidity of 50% at 40°C
Only if devices are cabled and the
connectors are plugged in and
tightened: IP65
2000 m max.
Fig. 4: Details of a calibration plate
12
English
Type 8626, 8712
Technical data
6.3. Compliance to standards and directives
MFM/MFC conformity with the EC directives comes through the
following standards:
• EMC: EN 61000-6-2, EN 61000-6-3.
The MFMs/MFCs compliant with ATEX Directive 94/9/EEC adhere to
the standards below:
• EN 60079-15
• EN 61241-1.
The MFM / MFC UL devices conform to the following standards:
• UL 61010-1
• CAN/CSA-C22.2 no. 61010-1.
6.4. Mechanical data
The device may be mounted in a horizontal or vertical position: see the
calibration plate and/or the calibration protocol.
Type Base block
material
8006,
8626
1.4305 stainless
steel, 1.4404
stainless steel or
anodized aluminium
8702,
8712
Stainless steel
1.4404
Sealing material: FKM or EPDM (see name plate)
Material of the
housing
Painted
pressure cast
aluminium
Polycarbonate
(PC)
Port connections
G 1/4, G 3/8, G
1/2, G 3/4
NPT 1/4, NPT 3/8,
NPT 1/2, NPT 3/4
G 1/4, NPT 1/4,
flange
Other parts of the solenoid control valve in contact with the medium:
1.4310, 1.4113 and 1.4305
6.5. Dimensions
2x M4
23
4
2,5
138
A
12,5
12
Fig. 5: Dimensions of MFMs type 8702 and MFCs type 8712
Weight stainless steel (kg)
ca. 1.4
97
115
71
29,2
37
42
3,9
A
25
12
1,9
English
13
Type 8006, 8702
Technical data
2x
66,5
Ø8,8
2x
Ø6
52
44,5
83
92
111
115
137
71
42
25
44,5
0
44,5
2,5
4
10
Ø
4x
4,5
4
0
10
32
48,5
M
4
Fig. 6: Dimensions of flanged MFMs type 8702, and of flanged
MFCs type 8712
Weight stainless steel (kg)
ca. 1.4
M4
1212
A
21
2
24
29
138
4
23
2,55
12,5
M4
A
152
170
Fig. 7: Dimensions of MFCs type 8712 with external
solenoid valve
Weight stainless steel (kg)
ca. 2.0
71
42
4
14
English
Type 8626, 8712
111,5
Technical data
5
95
A
B
C
88,5
4x M
4
D
12
B
96
A
34,5
43
59,5
73
50
111,5
95
A
B
C
88,5
4x M
4
D
12
12,5
117,5
73
A
34,5
B
43
59,5
50
Fig. 8: Dimensions of MFC type 8626 with solenoid valve
type 2873
A B
(mm)
C
(mm)
D
(mm)
Weight
aluminium
(kg)
G3/4;
14 27.25 191 ca. 2.0 ca. 4.0
NPT3/4
G1/2;
13 27.25 191
NPT1/2
G3/8;
10 22.25 181
NPT3/8
G1/4;
NPT1/4
10 22.25 181
Weight
stainless
steel (kg)
English
Fig. 9: Dimensions of MFC type 8626 with solenoid valve
type 2875
A B
(mm)C (mm)D (mm)
G3/4;
14 27.25 210.5 ca. 2.5 ca. 4.6
Weight
aluminium
(kg)
Weight
stainless
steel (kg)
NPT3/4
G1/2;
13 27.25 210.5
NPT1/2
G3/8;
10 22.25 200.5
NPT3/8
G1/4;
10 22.25 200.5
NPT1/4
15
87,25
Type 8006, 8702
Technical data
105
72
111,5
95
A
B
C
88,5
4x M
12
4
D
B
129,5
A
34,5
43
59,5
Fig. 10: Dimensions of MFC type 8626 with solenoid valve
type 6024
A B
(mm)C (mm)D (mm)
G3/4;
14 27.25 210.5 ca. 2.5 ca. 4.6
Weight
aluminium
(kg)
Weight
stainless
steel (kg)
NPT3/4
G1/2;
13 27.25 210.5
NPT1/2
G3/8;
10 22.25 200.5
NPT3/8
G1/4;
10 22.25 200.5
NPT1/4
16
73
50
111,5
95
A
B
C
88,5
4x M
12
4
D
170,5
73
47
A
B
59,5
50
43
Fig. 11: Dimensions of MFC type 8626 with solenoid valve
type 2836
A B
(mm)C (mm)D (mm)
G3/4;
14 27.25 191 ca. 3.0 ca. 5.0
Weight
aluminium
(kg)
Weight
stainless
steel (kg)
NPT3/4
G1/2;
13 27.25 191
NPT1/2
G3/8;
10 22.25 181
NPT3/8
G1/4;
10 22.25 181
NPT1/4
English
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