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

3
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
english

4
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
english

5
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.
english

6
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.
english

7
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.
english

8
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.
english

9
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]
english

10
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
english

11
Technical data
Typ 8750
7 TECHNICAL DATA
7.1 Conformity
Type 8750 conforms to the EC directives according to the EC Dec-
laration of Conformity.
7.2 Standards
The applied standards which are used to demonstrate compliance with
the EC Directives are listed in the EC type test certificate and/or the
EC Declaration of Conformity.
7.3 Operating conditions
Ambient temperature 0...+55 °C
Degree of protection: IP65 / IP67 according to EN 60529
(only if cables, plugs and sockets have been connected correctly
and in compliance with the exhaust air concept in Chapter “9.3
Pneumatic connection of the process controller”)
7.4 Mechanical data
Materials
Valve body Stainless steel 1.4301 and 1.4404/316L
Actuator PPS, stainless steel
Process controller PPS, PC, stainless steel
Seals process controller EPDM
Other parts which come into contact with media
Graphite seal Graphite
Packing gland PTFE rings with silicone grease
Pressure sensor, gasket PTFE
Seat seal EPDM
Control cone Stainless steel 1.4571
Spindle Stainless steel 1.4404
Dowel pin Stainless steel A2
Inlet and outlet sections acc. to EN ISO 5167-1
Inlet sections
20 x D
20 x D
18 x D
15 x D
Valve completely open
90° bend or T-piece
Widening
Reduction
Fig. 5: Inlet sections
english

12
Technical data
Typ 8750
Outlet sections already integrated in the system (6 x DN)
Dimensions
2x DN 6x DN
L
∅ 91
∅ E
HG
Fig. 6: Dimensions
DN pipe
connection [mm]
Actuator
size ∅ [mm]
L
[mm]
HG
[mm]
∅ E
[mm]
15 70 330 383 91
25 70 500 392 91
40 90 700 478 120
50 130 800 536 159
65 130 1000 590 159
80 130 1200 598 159
100 130 1400 608 159
Tab. 1: Dimensions
7.5 Type label (Example)
Made in Germany
8750 A 50,0 PTFE VA Pilot 5,5- 7bar
FLANSCH Pmed 16bar
Flow 1 2
00123456 W12ME
Type Pilot pressure
Max. medium pressureOrder number
Port connection
Direction of flow
Body material
Main seal material
Control function
Orifice
Fig. 7: Type label (Example)
7.6 Fluidic data
Control medium Air, neutral gases
Quality classes in accordance with ISO 8573-1
(5 μm filter recommended)
Dust content Quality class 7: max. particle size 40 μm,
max. particle density 10 mg/m3
Water content Quality class 3: max. pressure dew point –20 °C
or min. 10 °C below the lowest
operating temperature
Oil content Quality class X: max. 25 mg/m3
english

13
Technical data
Typ 8750
Pressure range control medium 5,5...7 bar
(DN15...DN50 port connection)
5...6 bar
(DN65...DN100 port connection)
Intrinsic air consumption 0 l/min
Connections threaded connection G1/8
Flow media air and gases
Ambient temperature 0...+55 °C
Temperature range media 0...+80 °C
Pressure range media 0...16 bar
Pressure measurement
range of sensor
0...0,1 bar (overpressure)
0...0,16 bar (overpressure)
0...0,25 bar (overpressure)
0...1 bar (overpressure)
0...2,5 bar (overpressure)
0...6 bar (overpressure)
0...10 bar (overpressure) [standard]
0...16 bar (overpressure)
0...1 bar (abs)
Measurement section acc. to DIN EN 60534-2-3
Orifice DN15...DN100 (port connection)
Sensor connections threaded connection G1/2
7.7 Electrical data
Connections
Operating voltage circular plug-in connector M12 x 1,
4-pole
Internal system signals 2x circular plug-in connectors M8 x 1,
4-pole
Input/output signal circular plug-in connector M12, 8-pole
or bus connections
Operating voltage 24 V DC
maximum residual ripple 10 %
Power consumption < 5 W
Set-point value default 0/4...20 mA or
0...5/10 V
field bus as option
Display multifunction display
User interface 4 function keys
english

14
Technical data
Typ 8750
Kv value table for FMR versions (specifications for valve stroke and flow rate in %)
The measured set of values for each seat combination is stored in the FMR memory at the factory.
Flow rate Kv in [%]
Valve design Valve stroke POS [%]
DN
pipe
[mm]
DN
seat
[mm]
Kvs
[m³/h] 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
15 8,0 2,1 0,0 3,3 3,8 4,8 5,2 5,7 6,2 7,6 9,0 11,0 12,9 16,2 20,5 24,8 30,0 37,6 45,2 58,1 76,2 90,5 100,0
10,0 3,1 0,0 2,9 3,5 4,2 4,8 5,5 6,1 7,7 10,0 12,6 15,8 19,7 24,2 29,7 35,5 44,2 54,8 67,7 80,6 92,6 100,0
15,0 4,3 0,0 3,3 4,0 4,4 5,1 6,5 8,1 9,8 12,1 15,1 18,6 22,8 27,9 34,4 41,9 51,2 62,8 74,4 86,0 94,4 100,0
25 15,0 5,3 0,0 2,6 3,2 3,6 4,2 5,1 6,6 8,1 9,8 12,1 15,1 18,5 22,6 27,5 34,0 43,0 54,7 66,0 77,4 88,7 100,0
20,0 7,2 0,0 2,8 3,5 3,9 4,3 5,3 6,5 7,9 9,7 12,2 15,3 18,5 22,2 27,5 34,7 42,8 52,8 63,9 75,0 87,5 100,0
25,0 12,0 0,0 2,9 3,2 3,9 5,4 6,8 8,3 10,2 12,5 15,0 18,3 22,7 28,3 35,3 42,5 49,6 58,3 67,9 78,3 89,2 100,0
40 25,0 10,3 0,0 3,7 4,7 5,6 6,8 7,9 9,2 11,1 13,6 16,2 19,4 23,6 28,6 34,7 39,8 49,4 55,8 66,8 76,7 88,1 100,0
32,0 14,4 0,0 3,1 3,8 4,6 5,6 6,5 7,6 9,5 11,8 14,3 17,4 20,8 25,0 30,1 34,4 43,5 49,7 63,0 75,0 87,3 100,0
40,0 17,5 0,0 3,1 3,8 4,7 5,7 7,0 8,6 10,4 12,9 15,1 18,0 21,5 25,7 31,9 37,1 47,4 54,3 66,7 78,0 88,8 100,0
50 32,0 21,0 0,0 2,3 2,9 3,5 4,3 5,1 6,2 7,9 10,0 12,5 15,2 18,3 21,9 26,7 32,9 43,0 55,2 65,5 76,2 87,4 100,0
40,0 24,6 0,0 2,4 2,8 3,3 4,1 5,4 6,9 8,5 10,6 13,1 16,3 19,8 24,0 29,8 37,4 47,2 56,9 66,3 76,8 87,8 100,0
50,0 37,0 0,0 2,4 3,0 3,9 5,1 6,4 7,8 9,8 12,2 15,0 18,4 22,7 28,4 34,9 41,9 50,7 59,5 68,9 79,2 89,2 100,0
65 40,0 29,0 0,0 2,2 2,6 3,2 3,8 4,8 6,2 7,9 9,7 12,1 14,8 18,3 22,4 29,0 35,9 45,2 55,2 65,2 75,9 87,6 100,0
50,0 45,0 0,0 2,2 2,7 3,3 4,4 5,6 6,9 8,7 10,7 12,4 14,9 18,0 21,6 27,7 35,6 43,6 53,3 65,1 77,8 89,1 100,0
65,0 65,0 0,0 2,5 3,1 3,8 4,6 5,9 7,7 9,6 12,3 16,2 20,8 26,9 33,8 41,8 50,8 60,0 69,2 77,2 86,2 93,8 100,0
80 50,0 45,0 0,0 2,2 2,7 3,5 4,4 5,6 7,6 9,3 11,8 15,1 18,4 23,5 28,9 34,9 42,2 49,6 57,8 67,3 77,8 88,4 100,0
65,0 73,0 0,0 2,2 2,7 3,3 4,0 5,4 6,8 8,9 11,2 14,3 17,8 23,7 30,1 38,8 47,9 57,0 65,8 74,5 83,6 91,8 100,0
80,0 100,0 0,0 2,5 3,4 4,8 6,3 8,5 10,7 13,1 16,0 21,4 27,0 34,5 42,5 50,3 58,0 65,6 73,0 80,0 87,0 93,5 100,0
100 65,0 77,0 0,0 2,8 2,3 3,0 3,6 4,8 6,5 8,4 11,4 15,2 19,5 25,6 32,5 39,7 48,1 56,5 64,9 74,0 83,1 91,4 100,0
80,0 110,0 0,0 2,0 2,8 4,0 5,4 7,4 9,4 12,4 15,9 21,5 27,3 35,3 43,6 51,8 60,0 67,5 74,5 81,3 88,2 94,2 100,0
100,0 140,0 0,0 2,7 3,7 4,9 6,8 7,8 10,7 14,3 18,6 25,7 33,2 40,1 48,2 56,3 64,3 72,1 79,3 85,7 91,4 96,1 100,0
Tab. 2: Flow rate Kv
english

15
Control and display elements
Typ 8750
8 CONTROL AND DISPLAY
ELEMENTS
MENU INPUT CMD MANU
POS
%XXX
Arrow key
up arrow
Designation:
Function of
the keys
left
selection key
right
selection key
Display
Arrow key
down arrow
MENU OPN CLS AUTO
POS 0.0
Fig. 8: Description of control elements
MENU CMD POS MANU
POS 0.0
Short description
of the value
Unit or per-
centage of the
value
Display for operating state AUTOMATIC:
Bar running from left to right and
symbol displayed
Value
Bar graph
display of the
value
Function of the keys
Save symbol
Display for position
control
Symbols1)
Fig. 9: Description of display
1) Symbols are displayed according to the activated functions
8.1 Function of the keys
The functions of the 4 keys differ depending on the operating state
(AUTOMATIC or MANUAL) and operating level (process level or
setting level).
The function of the keys is displayed in the gray text field which is
above the key.
Function of the keys on the process level:
Key Function of
the keys
Description of the
function
Operating
state
Arrow key MENU
OPN (OPEN) Manual opening of the
actuator MANUAL
Change the displayed value
(z.B. POS-CMD-TEMP-...) AUTOMATIC
Arrow key MENU
CLS
(CLOSE)
Manual closing of the actuator MANUAL
Change the displayed value
(e.g. POS-CMD-TEMP-...) AUTOMATIC
Selection
key
MENU
MENU Change to the setting level
Note: Press key for approx.
3 s.
AUTOMATIC
or MANUAL
Selection
key
MENU
AUTO Return to AUTOMATIC oper-
ating state MANUAL
MENU
MANU Change to MANUAL operating
state AUTOMATIC
english

16
Control and display elements
Typ 8750
Function of the keys on the setting level:
Key Function of the
keys Description of the function
Arrow key Scroll up in the menus
MENU
+ Increase numerical values
Arrow key Scroll down in the menus
MENU
– Decrease numerical values
MENU
← Change by one digit to the left; when
entering numerical values
Selection
key
MENU
EXIT (BACK) Return to the process level
Gradually return from a sub-menu
option
MENU
ESC Leave a menu
MENU
STOP Stop a sequence
Selection
key
MENU
ENTER
MENU
SELEC
MENU
OK
MENU
INPUT
Select, activate or deactivate a menu
option
MENU
EXIT (BACK) Gradually return from a sub-menu
option
MENU
RUN Start a sequence
MENU
STOP Stop a sequence
Tab. 3: Function of the keys
8.2 Operating state
The process controller has 2 operating states:
AUTOMATIC and MANUAL
MENU CMD POS MANU
POS 0.0
AUTOMATIC
In the AUTOMATIC operating state, normal
controller mode is implemented.
(Bar running along the upper edge of the
display and symbol displayed).
MENU OPN CLS AUTO
POS 0.0
MANUAL
In the MANUAL operating state, the valve
can be opened and closed manually via the
arrow keys MENU
OPN / MENU CLS .
8.2.1 Changing the operating state
Use the right selection key to switch between the two operating states
AUTOMATIC MENU
AUTO and MANUAL MENU MANU .
Switching from
AUTOMATIC MANUAL MENU
MANU 2) press
Switching from
MANUAL AUTOMATIC MENU
AUTO press
Tab. 4: Changing the operating state
2) Only possible if POS, CMD, PV (,SP) is displayed.
english

17
Control and display elements
Typ 8750
8.3 Operating levels
The process controller has 2 operating levels:
• Process level
Display and operation of the current process
Operating state: AUTOMATIC / MANUAL
• Setting level
Inputting the operating parameters
Supplementing the menu by optional menu options
8.3.1 Switching between the operating levels
Switching from
process level setting level MENU
MENU press for 3 s 3)
Switching from
setting level process level MENU
EXIT press
Tab. 5: Changing the operating level
If the device is in the AUTOMATIC operating state when
changing to the setting level, the process continues running
during the setting.
Process level
Setting level
MENU
MENU MENU
EXIT
approx. 3 s3)
MENU CMD POS MANU
POS
0.0
EXIT ENTER
POS
X.TUNE
ADD.FUNCTION
2
M A I N
Fig. 10: Operating levels
3) During these 3 s (countdown), 2 bars converge.
8.4 Display in AUTOMATIC operating
state
Description of the display set at the
factory Display
Set-point position of the valve
actuator (0 – 100 %) X
MENU SP/PV CMD MANU
POS
0.0
Nominal position of the valve
actuator (0 – 100 %) X
MENU POS TEMP MANU
CMD
0.0
Internal temperature in the housing
of the device (°C) –
MENU CMD PV
TEMP
0.0

C
Process actual value X
MENU TEMP SP MANU
PV
0.0
m3/min
Process set-point value X
MENU PV PV (t) INPUT
SP
0.0
m3/min
Simultaneous display of the
process set-point value and the
process actual value
_
MENU
CMD/POS
POS MANU
0.0
SP
PV
0.0
m3/min
m3/min
english

18
Control and display elements
Typ 8750
Description of the display set at the
factory Display
Graphical display of SP and PV
with time axis –
MENU HOLD
SP / PV (t)
Graphical display of POS and
CMD with time axis –
MENU HOLD
CMD / POS (t)
Value overview
Pressure sensor P1 and P2 X
MENU P.LIN SP/PV MANU
0.0
P1 bar
P2 bar
0.0
Time, weekday and date –
MENU
POS (t)
X.TUNE
INPUT
12:0000
Thu. 25 . 06 . 15
CLOCK
Automatic adjustment of the
process controller –
MENU CLOCK P.TUNE RUN
X.TUNE
Automatic optimization of the
process controller parameters –
MENU X.TUNE P.LIN RUN
P.TUNE
Description of the display set at the
factory Display
Automatic linearization of the
process characteristics –
MENU P.TUNE
CMD/POS
RUN
P.LIN
Simultaneous display of the nominal
position and the set-point position
of the valve actuator (0–100 %)
–
MENU P.LIN SP/PV MANU
0.0
CMD
POS
0.0
Tab. 6: Display in the AUTOMATIC operating state
8.5 Master code
Operation of the device can be locked via a freely selectable user
code. In addition, there is a non-changeable master code with which
you can perform all operator control actions on the device. This
4-digit master code can be found on the last pages of the printed
quickstart guide in the Chapter “Master code”.
If required, cut out the code and keep it separate from this quickstart
guide.
english

19
Assembly
Typ 8750
9 ASSEMBLY
9.1 Safety instructions
DANGER!
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.
WARNING!
Risk of injury from improper assembly.
▶Installation must only be carried out by authorized technicians and
with the appropriate tools.
Risk of injury from unintentional activation of the system and
uncontrolled restart.
▶Secure system against unintentional activation.
▶Following assembly, ensure a controlled restart.
9.2 Before installation
The FMR can be installed in any position, preferably with the
process controller face up.
• For trouble-free flow characteristics on the pressure sensor,
fit an inlet section upstream of the FMR (dimensions acc.
to EN ISO 5167-1, see “Fig. 5: Inlet sections”, page 11)
• Ensure that the pipelines are correctly lined and are not
twisted. If necessary, pipelines must be suitably attached or
supported.
• Observe flow direction (arrow on valve body).
9.2.1 Installation
→Clean pipelines and joints (sealing material, swarf, etc.).
→Connect FMR to pipeline.
9.3 Pneumatic connection of the
process controller
DANGER!
Risk of injury from high pressure in the equipment/device.
▶Before working on equipment or device, switch off the pressure
and deaerate/drain lines.
english

20
Assembly
Typ 8750
WARNING!
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.
Risk of injury from unsuitable connection hoses.
Hoses which cannot withstand the pressure and temperature
range may result in hazardous situations.
▶Use only hoses which are authorized for the indicated pressure
and temperature range.
▶Observe the data sheet specifications from the hose manufacturers.
Procedure:
→Connect the control medium to the pilot air port (1)
(5,6 – 7 bar; air class see chapter “7.6”).
→Fit the exhaust air line or a silencer to the exhaust air port (3).
Important information for the problem-free functioning of the
device:
• The installation must not cause back pressure to build up.
• To make the connection, select a hose with sufficient cross
section.
• The exhaust air line must be designed in such a way that
no water or other liquid can get into the device through the
exhaust air port (3).
Additional exhaust air port
Label: 3.1
Pilot air port
label: 1
Exhaust air port
label: 3
Fig. 11: Pneumatic connection
english