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.

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. +49 (0)7940 10-91 111

Fax +49 (0)7940 10-91 448

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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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

18 x D

15 x D

Valve completely open

90° bend or T-piece

Widening

Reduction

Fig. 5: Inlet sections

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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

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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

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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

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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

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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.

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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

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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.

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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.

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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

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Burkert 8750 User manual

Burkert 8750 User manual

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