Burkert 8750 User manual

Quickstart
English
Type 8750
Flow controller

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 201 - 2017
Operating Instructions 1705/0_(8(1_00 / Original DE

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Typ 8750
1 QUICKSTART GUIDE .................................................................................5
1.1 Definition of terms / Abbreviation .......................................... 5
2 SYMBOLS .........................................................................................................5
3 AUTHORIZED USE ......................................................................................6
3.1 Restrictions ................................................................................. 6
4 BASIC SAFETY INSTRUCTIONS ..........................................................6
5 GENERAL INFORMATION ........................................................................8
5.1 Contact address ........................................................................8
5.2 Warranty ......................................................................................8
5.3 Information on the Internet ...................................................... 8
6 SYSTEM DESCRIPTION ............................................................................8
6.1 General description .................................................................. 8
6.2 Structure ...................................................................................... 9
7 TECHNICAL DATA .....................................................................................11
7.1 Conformity .................................................................................11
7.2 Standards ..................................................................................11
7.3 Operating conditions ..............................................................11
7.4 Mechanical data.......................................................................11
7.5 Type label (Example) ...............................................................12
7.6 Fluidic data................................................................................12
7.7 Electrical data ...........................................................................13
8 CONTROL AND DISPLAY ELEMENTS ....................................................15
8.1 Function of the keys ................................................................... 15
8.2 Operating state ........................................................................... 16
8.3 Operating levels .......................................................................... 17
8.4 Display in AUTOMATIC operating state.............................17
8.5 Master code ..............................................................................18
9 ASSEMBLY .................................................................................................... 19
9.1 Safety instructions ...................................................................19
9.2 Before installation ....................................................................19
9.3 Pneumatic connection of the process controller .............19
10 ELECTRICAL INSTALLATION ............................................................... 21
10.1 Electrical installation, 24 V DC with circular
plug-in connector (multi-pole variant) ....................................... 22
10.2 Electrical installation PROFIBUS DP ....................................23
10.3 Electrical installation DeviceNet ...........................................25
11 START-UP 24 V DC ................................................................................... 26
11.1 General procedure for creating settings for the
flow controller ...........................................................................27
11.2 Define basic settings ..............................................................27
11.3 Automatic adjustment (X.TUNE) ............................................ 28
11.4 Configuring the F.CONTROL auxiliary function .................. 29
11.5 Leakage air characteristic for FMR (LeakTune) ................32
12 ADDITIONAL FMR FUNCTIONS ........................................................ 33
12.1 Activating and deactivating auxiliary functions .................35
12.2 CAL.USER - Changing the factory calibration ...............35
12.3 OUTPUT - Configuration of the analog output ...............37
13 PROFIBUS DP START-UP ..................................................................... 38
13.1 Settings in BUS.COMM ................................................... 38
13.2 Configuration of the process values ...................................39
14 DEVICENET START-UP ..........................................................................42
Table of Contents
Typ 8750
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Typ 8750
14.1 Settings in BUS.COMM ................................................... 42
14.2 Configuration of the process data .......................................44
15 SAFETY END POSITIONS ....................................................................48
16 ERROR MESSAGES .................................................................................49
16.1 Error messages on field bus devices ..................................51
16.2 Other error messages ............................................................52
17 ACCESSORIES ........................................................................................... 53
18 DISASSEMBLY ............................................................................................ 53
19 OPERATING STRUCTURE .................................................................... 54
20 TRANSPORT, STORAGE, PACKAGING .......................................... 63
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Quickstart Guide
Typ 8750
1 QUICKSTART GUIDE
The quickstart guide contains the most important information and notes
regarding the use of the device.
Keep the quickstart guide in a location which is easily accessible to
every user and make it available to every new owner of the device.
Important Safety Information.
Read Quickstart carefully and thoroughly. Study in particular the
chapters entitled Basic Safety Instructions and Authorized Use.
▶Quickstart must be read and understood.
A detailed description of the process controller can be found in the
operating instructions for Type 8693.
The operating instructions can be found on the Internet at:
www.burkert.com
1.1 Definition of terms / Abbreviation
In these instructions, the term “device” always refers to the flow
controller Type 8750.
FMR = Flow controller
2 SYMBOLS
The following symbols are used in these instructions.
DANGER!
Warns of an immediate danger.
▶Failure to observe the warning will result in a fatal or serious injury.
WARNING!
Warns of a potentially dangerous situation.
▶Failure to observe the warning may result in a serious or fatal injury.
CAUTION!
Warns of a possible danger.
▶Failure to observe this warning may result in a moderate or minor
injury.
NOTE!
Warns of damage to property.
Important tips and recommendations.
Refers to information in these operating instructions or in
other documentation.
▶Indicates an instruction to prevent risks.
→designates a procedure which you must carry out.
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Authorized use
Typ 8750
3 AUTHORIZED USE
Non-authorized use of the flow controller Type 8750 may be a
hazard to people, nearby equipment and the environment.
▶The device is designed as a simple system for determining and
controlling the volumetric flow rate of gases.
▶Do not expose the device to direct sunlight.
▶Do not use the device outdoors.
▶Use according to the authorized data, operating conditions, and
conditions of use specified in the contract documents and oper-
ating instructions. These are described in Chapter “7 Technical
data”.
▶Use the device only in conjunction with third-party devices and
components recommended and authorized by Bürkert.
▶Correct transportation, storage, and installation, as well as care-
ful use and maintenance are essential for reliable and faultless
operation.
▶Use the device only as intended.
3.1 Restrictions
If exporting the system/device, observe any existing restrictions.
4 BASIC SAFETY INSTRUCTIONS
These safety instructions do not make allowance for any
• Contingencies and events which may arise during the installation,
operation, and maintenance of the devices.
• Local safety regulations – the operator is responsible for observing
these regulations, also in relation to the installation personnel.
Risk of injury from high pressure in the equipment/device.
▶Before working on equipment or device, switch off the pressure
and deaerate/drain lines.
Risk of electric shock.
▶Before reaching into the device, switch off the power supply and
secure to prevent reactivation.
▶Observe applicable accident prevention and safety regulations
for electrical equipment.
Risk of burns/risk of fire if used during long-term operation
through hot device surface.
▶Keep the device away from highly flammable substances and media
and do not touch with bare hands.
Risk of injury when opening the actuator.
The actuator contains a tensioned spring. If the actuator is
opened, there is a risk of injury from the spring jumping out.
▶The actuator must not be opened.
Risk of injury from moving parts in the device.
▶Do not reach into openings.
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Basic safety instructions
Typ 8750
General hazardous situations.
▶Devices without a separate Ex type label may not be used in a
potentially explosive area.
▶Only trained technicians may perform installation and maintenance
work.
▶Ensure that the system cannot be activated unintentionally.
▶After an interruption in the power supply or pneumatic supply,
ensure that the process is restarted in a defined or controlled
manner.
▶The device may be operated only when in perfect condition and
in consideration of the operating instructions.
▶The general rules of technology apply to application planning and
operation of the device.
▶Do not supply the pilot air port with aggressive or flammable media.
▶Do not supply the pilot air port with liquids.
▶Do not physically stress the body (e.g. by placing objects on it or
standing on it).
▶Do not make any internal or external changes on the device.
NOTE!
Electrostatic sensitive components/modules.
The device contains electronic components which react sensitively
to electrostatic discharge (ESD). Contact with electrostatically
charged persons or objects are hazardous to these components.
In the worst case scenario, they will be destroyed immediately or
will fail after start-up.
▶Observe the requirements specified in EN 61340-5-1 to minimize/
avoid the possibility of damage caused by a sudden electrostatic
discharge.
▶Do not touch electronic components while the supply voltage is
switched on.
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General information
Typ 8750
5 GENERAL INFORMATION
5.1 Contact address
Germany
Bürkert Fluid Control Systems
Sales Center
Christian-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. [phone]
Fax [phone]
E-mail: [email protected]
International
Contact addresses can be found on the final pages of the printed
operating instructions.
And also on the Internet at:
www.burkert.com
5.2 Warranty
The warranty is only valid if the flow controller Type 8750 is used as
intended in accordance with the specified application conditions.
5.3 Information on the Internet
Further information on Types 2301 (valve) and 8693 (process con-
troller) can be found on the Internet at: www.burkert.com
6 SYSTEM DESCRIPTION
6.1 General description
The fluid flow rate controller Type 8750 is a complete system for
measuring and controlling the volume flow of gases according to the
differential pressure principle. The system consists of an ELEMENT
control valve Type 2301 with the process controller Type 8693 as
well as two pressure sensors of Type 8323. It is supplied as a fully
assembled system including special housing.
Options:
• Digital input
• Analog feedback
• 2 digital outputs
• Bus communication (PROFIBUS DP or DeviceNet)
Other:
• The flow controller is supplied with a factory setting.
• The device is operated via 4 function keys and a display.
The pressure drop is measured by the control valve as “measuring
orifice”. The measured pressure difference can be used to calculate
the nominal volume flow of the medium for a given density and tem-
perature. For this purpose, the flow characteristic of the control valve
is saved in the process controller.
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System description
Typ 8750
6.2 Structure
Process controller Type 8693
Actuator control
valve Type 2301
Signal line from
pressure sensor
to the process
controller
Valve body control
valve Type 2301
Pressure sensor
Type 8323
Flange acc. to
DIN EN 1092-1
Fig. 1: Structure
6.2.1 Action diagram of the FMR
FMR
Type
8750
PV
p1p2
Pressure p1Pressure p2
Kv value
Fig. 2: Action diagram
6.2.2 Influence of the process variables on
the flow rate
Pressure drop Flow rate of gases
subcritical
p2>p1
2QN = 514 · kV
p1 · ∆p
T1 · pN
supercritical
p2<p1
2
QN = 257 · kV
p1
T1 · pN
kVFlow-rate coefficient [m3/h] 1) 1) measured for water,
∆p = 1 bar, above the
device
2) Standard conditions at
1,013 bar3) and 0 °C
(273 K)
3) Absolute pressure
QNStandard flow rate [mN3/h] 2)
p1Input pressure [bar] 3)
p2Output pressure [bar] 3)
∆p Differential pressure
p1– p 2
[bar]
p Density [kg/m3]
pNStandard density [kg/m3]
T1Medium temperature [(273+t)K]
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System description
Typ 8750
6.2.3 Electrical interfaces
Inputs for position
or process set-
point value
0...20 mA
4...20 mA
0...5 V
0...10 V
Inputs for process
actual value
(4...20 mA)
P1
P2
Digital input
24 V DC
2 digital outputs
Analog
position
feedback
Inputs
Power supply
Outputs
Operation
(keys)
Process con-
troller
Type 8693
Fig. 3: Interfaces
Bus
(set-point value)
Inputs for process
actual value
(4...20 mA)
P1
P2
24 V DC
Bus
Inputs
Power supply
Outputs
Operation
Process con-
troller Type
8693
PROFIBUS DP
DeviceNet
Fig. 4: Interfaces - Bus
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