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.

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

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

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

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

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

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

out

= w-x

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).

Sensor

Control

electronics

Gas outlet

Actuating element (solenoid valve)

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

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

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

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

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

2,5

138

12,5

Fig. 5: Dimensions of MFMs type 8702 and MFCs type 8712

Weight stainless steel (kg)

ca. 1.4

115

29,2

3,9

1,9

English

Type 8006, 8702

Technical data

66,5

Ø8,8

Ø6

44,5

111

115

137

44,5

2,5

4,5

48,5

Fig. 6: Dimensions of flanged MFMs type 8702, and of flanged

MFCs type 8712

Weight stainless steel (kg)

ca. 1.4

1212

138

2,55

12,5

152

170

Fig. 7: Dimensions of MFCs type 8712 with external

solenoid valve

Weight stainless steel (kg)

ca. 2.0

English

Type 8626, 8712

111,5

Technical data

88,5

4x M

34,5

59,5

111,5

88,5

4x M

12,5

117,5

34,5

59,5

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

87,25

Type 8006, 8702

Technical data

105

111,5

88,5

4x M

129,5

34,5

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

111,5

88,5

4x M

170,5

59,5

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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