optiswirl 4070 c - Tablar Messtechnik GmbH

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OPTISWIRL 4070 C
Vortex flowmeter
© KROHNE 05/2009 - 4000150604 MA OPTISWIRL4070C R05 en
Handbook
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: IMPRINT ::::::::::::::::::::::::::::::::::
All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without
the prior written authorisation of KROHNE Messtechnik GmbH & Co. KG.
Subject to change without notice.
Copyright 2009 by
KROHNE Messtechnik GmbH & Co. KG - Ludwig-Krohne-Straße 5 - 47058 Duisburg
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OPTISWIRL 4070 C
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CONTENTS
OPTISWIRL 4070 C
1 Safety instructions
6
1.1 Intended use ..................................................................................................................... 6
1.2 Certifications .................................................................................................................... 7
1.3 Safety instructions from the manufacturer ..................................................................... 8
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
Copyright and data protection ................................................................................................ 8
Disclaimer ............................................................................................................................... 8
Product liability and warranty ................................................................................................ 8
Information concerning the documentation........................................................................... 9
Warnings and symbols used................................................................................................. 10
1.4 Safety instructions for the operator............................................................................... 10
2 Device description
11
2.1 Scope of delivery............................................................................................................. 11
2.2 Instrument versions ....................................................................................................... 11
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
Devices with connection flange ............................................................................................ 12
Sandwich version .................................................................................................................. 12
Device description................................................................................................................. 13
Free air delivery measurement - FAD (optional) ................................................................. 13
Gross heat meter .................................................................................................................. 14
Dual seal ............................................................................................................................... 15
2.3 Nameplate ...................................................................................................................... 16
3 Installation
3.1
3.2
3.3
3.4
17
Notes on installation ...................................................................................................... 17
Storage ........................................................................................................................... 17
Transport ........................................................................................................................ 17
Installation condtitions................................................................................................... 18
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
Measurement of liquids ........................................................................................................ 19
Measurement of vapours and gases .................................................................................... 21
Pipelines with control valve .................................................................................................. 22
Preferred mounting position ................................................................................................ 22
Turning the connection housing ........................................................................................... 23
Turning the display ............................................................................................................... 24
Heat insulation ...................................................................................................................... 25
3.5 Inlet and outlet runs ....................................................................................................... 26
3.5.1 Minimum inlet runs............................................................................................................... 26
3.5.2 Minimum outlet runs ............................................................................................................ 27
3.5.3 Flow straightener.................................................................................................................. 27
3.6 Installation...................................................................................................................... 28
3.6.1 General installation notes..................................................................................................... 28
3.6.2 Installing devices in flange design ....................................................................................... 29
3.6.3 Installing devices in sandwich design .................................................................................. 30
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CONTENTS
OPTISWIRL 4070 C
4 Electrical connections
31
4.1 Safety instructions.......................................................................................................... 31
4.2 Connecting the signal converter .................................................................................... 32
4.3 Electrical connection of current and pulse output ........................................................ 33
4.3.1 Power supply......................................................................................................................... 34
4.3.2 Totalizer / pulse output......................................................................................................... 34
4.4 Grounding connections................................................................................................... 36
4.5 Protection category ........................................................................................................ 37
5 Start-up
38
5.1 Start ................................................................................................................................ 38
5.2 Start-up and control ....................................................................................................... 38
6 Operation
39
6.1 Display and operating elements .................................................................................... 39
6.2 Operating principles ....................................................................................................... 40
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
Functional description of the keys........................................................................................ 40
Switch from measuring mode to menu mode...................................................................... 40
Navigation within the menu structure.................................................................................. 41
Changing the settings in the menu....................................................................................... 41
Changing units ...................................................................................................................... 42
Measures in the event of faulty indications.......................................................................... 43
6.3 Overview of the most important functions and units..................................................... 44
6.4 Error messages .............................................................................................................. 46
6.5 Menu structure ............................................................................................................... 47
6.5.1
6.5.2
6.5.3
6.5.4
6.5.5
6.5.6
6.5.7
6.5.8
Overview of firmware versions ............................................................................................. 47
Entering values in change mode .......................................................................................... 48
Character selection in change mode.................................................................................... 48
Menu item Quick Setup......................................................................................................... 49
Menu item Tests.................................................................................................................... 50
Menu item Setup (firmware version - basic) ........................................................................ 51
Menu item Setup (firmware version - steam) ...................................................................... 54
Menu item Setup (firmware version - gas)........................................................................... 58
7 Service
7.1
7.2
7.3
7.4
63
Replacing signal converter / LCD display ...................................................................... 63
Spare parts availability................................................................................................... 64
Availability of services .................................................................................................... 64
Returning the device to the manufacturer..................................................................... 64
7.4.1 General information.............................................................................................................. 64
7.4.2 Form (for copying) to accompany a returned device............................................................ 65
7.5 Disposal .......................................................................................................................... 65
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CONTENTS
OPTISWIRL 4070 C
8 Technical data
66
8.1 Functional principle........................................................................................................ 66
8.2 Technical data................................................................................................................. 67
8.3 Dimensions and weights ................................................................................................ 70
8.3.1 Flange versions..................................................................................................................... 70
8.3.2 Sandwich version .................................................................................................................. 73
8.4 Flow tables ..................................................................................................................... 75
9 Notes
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Safety instructions
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1 SAFETY INSTRUCTIONS
OPTISWIRL 4070 C
1.1 Intended use
The vortex flowmeters are made to measure the flow of gases, steam and liquids.
The devices are particularly suitable for the measurement of:
•
•
•
•
•
•
•
Clean liquids with low viscosity (< 10 cP)
Hydrocarbons with low viscosity (< 10 cP)
Water
Chemicals with low corrosiveness
Saturated steam
Superheated steam, including CIP and SIP applications in the food industry
Industrial gases
The devices are rated for the following flow velocities:
• Liquids: 0,3...7 m/s / 1.0...23 ft/s
• Gases and steam: 2.0...80 m/s / 6.6...262 ft/s
DN15: 3.0...45 m/s / 9.8...148 ft/s; DN25: 2.0...70 m/s / 6.6...230 ft/s
If there is a risk of waterhammers in steam networks, appropriate condensate separators must
be installed.
Suitable measures must be taken to avoid water cavitation if it is a possible risk.
CAUTION!
The operator himself bears the sole responsibility for the intended use of the device regarding
the suitability and the corrosion resistance of the used materials against the measured fluid.
• The sensors are made from Stainless Steel 316 L (1.4404) or Hastelloy® C22.
• In your project planning, please observe the data given in the corrosion tables.
• The pressure-bearing parts have been designed and rated for stationary operation taking into
account the maximum pressure and temperature.
• External forces and moments, caused e.g. by pipe stresses, have not been taken into account.
Primarily, volumetric flow and temperature are measured, with pressure measurement as an
option. From these parameters the measuring device calculates the mass flow or standard
volumetric flow using pre-programmed density data and then exports the measured values via
various communication interfaces.
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SAFETY INSTRUCTIONS 1
OPTISWIRL 4070 C
1.2 Certifications
CE marking
The device fulfils the statutory requirements of the following EC directives:
• Pressure Equipment Directive 97/23/EC
• Low Voltage Directive 73/23/EEC
• EMC Directive 89/336/EC
as well as
• EN 61010
• EMC specification acc. to EN 61326/A1
• NAMUR recommendations NE 21 and NE 43
The manufacturer certifies successful testing of the product by applying the CE marking.
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1 SAFETY INSTRUCTIONS
OPTISWIRL 4070 C
1.3 Safety instructions from the manufacturer
1.3.1 Copyright and data protection
The contents of this document have been created with great care. Nevertheless, we provide no
guarantee that the contents are correct, complete or up-to-date.
The contents and works in this document are subject to German copyright. Contributions from
third parties are identified as such. Reproduction, processing, dissemination and any type of use
beyond what is permitted under copyright requires written authorisation from the respective
author and/or the manufacturer.
The manufacturer tries always to observe the copyrights of others, and to draw on works created
in-house or works in the public domain.
The collection of personal data (such as names, street addresses or e-mail addresses) in the
manufacturer's documents is always on a voluntary basis whenever possible. Whenever
feasible, it is always possible to make use of the offerings and services without providing any
personal data.
We draw your attention to the fact that data transmission over the Internet (e.g. when
communicating by e-mail) may involve gaps in security. It is not possible to protect such data
completely against access by third parties.
We hereby expressly prohibit the use of the contact data published as part of our duty to publish
an imprint for the purpose of sending us any advertising or informational materials that we have
not expressly requested.
1.3.2 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect, incidental, punitive and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.
1.3.3 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator. Improper
installation and operation of the devices (systems) will cause the warranty to be void. The
respective "Standard Terms and Conditions" which form the basis for the sales contract shall
also apply.
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SAFETY INSTRUCTIONS 1
OPTISWIRL 4070 C
1.3.4 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer can not accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of underneath icons.
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1 SAFETY INSTRUCTIONS
OPTISWIRL 4070 C
1.3.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
DANGER!
This information refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
LEGAL NOTICE!
This note contains information on statutory directives and standards.
• HANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
This symbol refers to all important consequences of the previous actions.
1.4 Safety instructions for the operator
WARNING!
In general, devices from the manufacturer may only be installed, commissioned, operated and
maintained by properly trained and authorized personnel.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device.
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Device description
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DEVICE DESCRIPTION 2
OPTISWIRL 4070 C
2.1 Scope of delivery
INFORMATION!
Inspect the cartons carefully for damage or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Check the packing list to check if you received completely all that you ordered.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 2-1: Scope of delivery
1
2
3
4
5
Measuring device in ordered version
Quick Start
Certificates, calibration report and parameter datasheet
CD with complete documentation
Bar magnet
2.2 Instrument versions
The devices come in the following versions:
•
•
•
•
Converter with display
Blind device
Sensor in flanged design
Sensor in sandwich design
The following designs are available as options:
• with pressure sensor
• with isolation valve for the pressure sensor
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2 DEVICE DESCRIPTION
OPTISWIRL 4070 C
2.2.1 Devices with connection flange
The measuring system consists of a measuring sensor and a signal converter. These elements
form a permanent mechanical unit.
Figure 2-2: Flanged devices with display
1 Version with temperature sensor
2 Version with temperature sensor and optional pressure sensor
3 Version with temperature sensor, optional pressure sensor and shut-off valve
2.2.2 Sandwich version
The sandwich version features 2 centring rings to aid with installation.
Figure 2-3: Sandwich versions with display
1 Version with temperature sensor
2 Version with temperature sensor and optional pressure sensor
3 Version with temperature sensor, optional pressure sensor and shut-off valve
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DEVICE DESCRIPTION 2
OPTISWIRL 4070 C
2.2.3 Device description
Figure 2-4: Device description
1
2
3
4
5
6
Signal converter
Cable feedthrough grey, standard version
Pressure sensor, optional
Shut-off valve, optional
Measuring sensor
Centering ring
2.2.4 Free air delivery measurement - FAD (optional)
A (air) compressor draws air from the ambient atmosphere, compresses it and delivers it at the
required pressure. Since the ambient atmosphere also contains water vapour, what the
compressor draws in is a mixture of air and water vapour. Free air delivery measurement is to
be understood under this condition. Most manufacturers specify free air delivery only at
standard intake conditions. What the user ultimately requires as process air must first be
determined before measuring can take place with an accuracy of ±1%.
The vortex flowmeter with the optional FAD function can measure the free air delivery online,
humidity and speed compensated, regardless of its function as standard flowmeter. The
integrated software evaluates the free air delivery automatically online.
The menu-driven, user-friendly software prompts the operator to enter the pressure, relative
humidity, the required as well as current discharge pressure.
The steam tables and compressibility tables are saved as standard. The measuring device is
optionally available with a pressure sensor which measures the discharge pressure online,
making manual input of the values unnecessary.
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2 DEVICE DESCRIPTION
OPTISWIRL 4070 C
2.2.5 Gross heat meter
In almost all applications with saturated steam, the steam is used for heating. It is much more
interesting to know how great the heat flow volume is that is available to the process, than to
know how great the flow is in kg/h.
As the enthalpy of steam changes with the temperature, it cannot be assumed to be constant.
The vortex flowmeter has a special feature which calculates the flow of steam and water as
power. The enthalpy tables are permanently programmed into the memory of the device.
The online density-compensated mass flow is multiplied by the correct enthalpy to obtain the
flow as power output.
Power {QH] = mass flow [Qm] x enthalpy [H]
If the gross heat meter is activated, both the totalizer for the absolute steam consumption as
well as that for the energy run internally.
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DEVICE DESCRIPTION 2
OPTISWIRL 4070 C
2.2.6 Dual seal
To cover the requirements of ANSI/ISA-12.27.01-2003 “Requirements for Process Sealing
Between Electrical Systems and Flammable or Combustible Process Fluid” Dual seal, a
membrane vent is integrated in the neck of the instrument. This vent works in the improbable
case of a leakage as an annunciation valve between the primary seal (Process) and secondary
seal (electronic compartment).
1 Annunciation valve (Membrane vent)
The sealing between the pick-up and the Flow tube is considered as the primary seal. Its
construction material is always the same as the Flow tube itself (e.g. Stainless steel 316L or
Hastelloy C22). Chemicals used for the process, going through the Flow tube, must be
compatible with the designated material.
By using the membrane vent as annunciation valve, all requirements for a dual seal device in
accordance to above mentioned standard, are fulfilled.
• It protects the electronic compartment against access by process media, due to possible
leakages.
• The leakage of the primary seal is visible.
Regular maintenance should be performed by the customer to ensure this Dual Seal notification
system is working properly or that there is no leak.
If a leakage is noticed:
KROHNE customer service should be contacted for servicing or replacement of the meter.
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2 DEVICE DESCRIPTION
OPTISWIRL 4070 C
2.3 Nameplate
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Figure 2-5: Example for nameplate
1
2
3
4
5
6
7
8
Device type
Manufacturer
Notified ATEX & DGRL bodies (only available if this option was ordered)
Connection data: nominal diameter and pressure rating
PED data
Ex data (only available if this option was ordered)
Electrical connection data
Manufacturer's website
Figure 2-6: Example for nameplate
1
2
3
4
5
6
7
16
Serial number
Order number
Type code
Item number
Fluid data
Software variant
Tag number
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Installation
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INSTALLATION 3
OPTISWIRL 4070 C
3.1 Notes on installation
INFORMATION!
Inspect the cartons carefully for damage or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Check the packing list to check if you received completely all that you ordered.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
3.2 Storage
•
•
•
•
Store the device in a dry and dust-free location.
Avoid extended direct exposure to the sun.
Store the device in its original packing.
The permissible storage temperature for standard devices is -40...+80°C / -40...+176°F.
3.3 Transport
•
•
•
•
Use lifting straps wrapped around both process connections for transport.
Do not lift measuring devices by the signal converter housing for transport.
Never lift the measuring device by the pressure sensor.
Do not use lifting chains as they may damage the housing.
Figure 3-1: Transport instructions
CAUTION!
Non-secured devices can pose risk of injury. The centre of mass of the device is often higher
than the point at which the lifting straps are attached.
Prevent the measuring device from sliding or rotating accidentally.
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3 INSTALLATION
OPTISWIRL 4070 C
3.4 Installation condtitions
INFORMATION!
For accurate volumetric flow measurement the measuring device needs a completely filled pipe
and a fully developed flow profile.
Please observe the instructions regarding inlet and outlet pipe runs as well as the installation
position.
In the event of vibrations on the piping, select the installation site so that the vibrations are at
their lowest in a transverse direction to the flowmeter.
CAUTION!
When installing the device in the piping, the following points must be observed:
•
•
•
•
•
•
•
•
•
•
18
Nominal diameter of connection pipe flange = nominal flange diameter of pipe!
Use flanges with smooth holes, e.g. welding neck flanges.
Align carefully the holes of the connecting flange and the flowmeter flange.
Check the compatibility of the gasket material with the process product.
Make sure that the gaskets are arranged concentrically. The flange gaskets must not project
into the pipe cross-section.
The flanges have to be concentric.
There must not be any pipe bends, valves, flaps or other internals in the immediate inlet run.
Devices in sandwich version may only be installed using a centering ring.
Never install the device directly behind piston compressors or rotary piston meters.
Do not lay signal cables directly next to cables for the power supply.
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INSTALLATION 3
OPTISWIRL 4070 C
3.4.1 Measurement of liquids
Prohibited installation
Figure 3-2: Upper pipe bend
CAUTION!
Prohibited: Installing the device in an upper pipe bend 1, because there is a risk of gas bubbles
2 forming. Gas bubbles can lead to pressure surges and inaccurate measurement.
Figure 3-3: Downpipe and outlet
CAUTION!
Prohibited: Installing the device in a downstream pipe 3 or upstream pipe of a outlet 4. There is
the risk of partially filled pipes.
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3 INSTALLATION
OPTISWIRL 4070 C
Recommended installations for measurement of liquids
CAUTION!
It is absolutely necessary to comply with the required inlet and outlet runs.
1
2
3
4
If the device is installed in a downpipe, a standpipe must be installed immediately after it.
Installing the device in an inclined standpipe.
Installing the device in a vertical standpipe.
Installing the device in the lower pipe bend.
1 Above a horizontal pipe
2 On a vertical pipe
INFORMATION!
Depending on the installation position, you may have to rotate the display and/or the connection
housing.
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INSTALLATION 3
OPTISWIRL 4070 C
3.4.2 Measurement of vapours and gases
Prohibited installation
1 Lower pipe bends
2 Condensate
DANGER!
Prohibited: Installing the device in a lower pipe bend 1, because there is a risk of condensate
forming 2.
Condensate can lead to cavitation and inaccurate measurement. Under certain circumstances
the device can be destroyed and the measured product can leak.
Recommended installations
CAUTION!
It is absolutely necessary to maintain the required inlet and outlet runs.
1 Inlet and outlet falling
2 Rising inlet - falling outlet
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3 INSTALLATION
OPTISWIRL 4070 C
3.4.3 Pipelines with control valve
INFORMATION!
To ensure smooth and correct measurement, the manufacturer recommends not installing the
measuring device downstream from a control valve. This would run the risk of vortex formation,
which would distort the measuring result.
Figure 3-4: Pipeline with control valve
1 Recommended: installing the device upstream from the control valve at a distance of ≥ 5 DN
2 Not recommended: Installing the flowmeter directly downstream of control valves, due to vortex formation.
3.4.4 Preferred mounting position
Preferred mounting position
1 Above a horizontal pipe
2 underneath a horizontal pipe (not permitted with lines at risk for condensate )
3 On a vertical pipe
INFORMATION!
Depending on the installation position, you may have to rotate the display and/or the connection
housing. For further information refer to Turning the display on page 24.
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INSTALLATION 3
OPTISWIRL 4070 C
3.4.5 Turning the connection housing
DANGER!
All work on the device electrics may only be carried out by appropriately trained personnel. The
regional occupational health and safety directives must always be observed.
CAUTION!
Do not damage the electrical cable by overtwisting it.
Do not remove the electrical connector.
Figure 3-5: Allen screws on connection housing
•
•
•
•
Disconnect the power supply from the measuring device.
Loosen the four screws 1 on the rear side of the connection housing.
Lift the connection housing and turn it to the required position in 90° steps.
Screw the connection housing back on.
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3 INSTALLATION
OPTISWIRL 4070 C
3.4.6 Turning the display
DANGER!
All work on the device electrics may only be carried out by appropriately trained personnel. The
regional occupational health and safety directives must always be observed.
INFORMATION!
If the measuring device is installed in a vertical pipe, you will have to turn the display by 90°; if
installed below a pipe, turn 180°.
Figure 3-6: Turning the display
Turn the display as follows:
• Disconnect the power supply from the measuring device.
• Unscrew the cover in front of the display 1 from the connection housing.
• Pull the display 2 carefully a few centimetres out of the anchor fitting and turn it to the
required position 3.
• Press the display onto the spacer pins 4, until it clicks.
• Turn the cover with gasket 5 back onto the housing and tighten it by hand.
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INSTALLATION 3
OPTISWIRL 4070 C
3.4.7 Heat insulation
CAUTION!
The area above the converter support must not be heat-insulated.
The heat insulation 3 may only extend to the maximum height 1 shown below up to the
connecting screws of the measuring sensor.
Figure 3-7: Heat insulation on connection piece and signal cable
1 Max. height of insulation up to intermediate piece between measuring sensor and signal converter
2 Max. thickness of the insulation up to the bend of the pressure pipe
3 Insulation
CAUTION!
The heat insulation 3 may only extend as far as the bend of the pressure sensing line 2.
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3 INSTALLATION
OPTISWIRL 4070 C
3.5 Inlet and outlet runs
3.5.1 Minimum inlet runs
1 General inlet run without disturbing flow ≥ 20 DN
2 Behind a control valve ≥ 50 DN
3 After a pipe diameter reduction ≥ 20 DN
1 After a single bend 90° ≥ 20 DN
2 After a double bend 2x90° ≥ 30 DN
3 After a double three-dimensional bend 2x90° ≥ 40 DN
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INSTALLATION 3
OPTISWIRL 4070 C
3.5.2 Minimum outlet runs
Figure 3-8: Minimum outlet runs
1 Upstream of pipe expanders, pipe bends, control valves, etc. ≥ 5 DN
2 Upstream of metering points ≥ 5…6 DN
INFORMATION!
The interior of the pipe at the metering points must be free of burrs and other flow impediments.
The measuring device has an internal temperature sensor. External temperature sensor must
be located ≥ 5 DN behind the flow sensor outlet. Use sensors that are as short as possible to
avoid disturbing the flow profile.
3.5.3 Flow straightener
If, due to the type of installation, the required inlet runs are not available, the manufacturer
recommends using flow straighteners. Flow straighteners are installed between two flanges
upstream of the device and shorten the required inlet run.
Figure 3-9: Flow straightener
1
2
3
4
Straight inlet run upstream of straightener ≥ 2 DN
Flow straightener
Straight pipe run between flow straightener and device ≥ 8 DN
Minimum straight outlet run ≥ 5 DN
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3 INSTALLATION
OPTISWIRL 4070 C
3.6 Installation
3.6.1 General installation notes
CAUTION!
Installation, assembly, start-up and maintenance may only be performed by appropriately
trained personnel. The regional occupational health and safety directives must always be
observed.
The following procedures have to be carried out before installing the device:
• Remove all transportation safety devices and protective coverings from the device.
• Ensure that the gaskets have the same diameter as the pipelines.
• Note the correct flow direction for the device. This is indicated by an arrow on the housing of
the measuring sensor.
• On metering points with varying thermal loads, the flowmeters have to be mounted with stress
bolts (DIN 2510).
• Stress bolts or bolts and nuts are not included in the scope of delivery.
• Ensure that the measuring flange is concentrically fitted.
• Note the exact installation length of the measuring device when preparing the metering point.
Figure 3-10: Preparing the metering point
1 Installation length of measuring device + thickness of gaskets.
CAUTION!
The internal diameter of the pipelines, the measuring sensor and the gaskets must match. The
gaskets may not protrude into the flow.
Figure 3-11: Internal diameter
1 Internal diameter connection pipe
2 Internal diameter flange and gasket
3 Internal diameter measuring sensor
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INSTALLATION 3
OPTISWIRL 4070 C
3.6.2 Installing devices in flange design
Figure 3-12: Installing devices in flange design
1 Gasket
2 Bolts with fixing nuts
•
•
•
•
•
•
Use bolts and fastening nuts 2 to attach the measuring device to one side of the flange.
While doing so, insert the gaskets 1 between measuring sensor and flange and align them.
Check that the gasket is concentric and that it is not protruding into the pipe cross-section.
Install the gasket, bolts and fastening nuts on the other side of the flange.
Align the measuring device and the gaskets so they are concentric.
Now tighten all nuts bit by bit alternately across the diagonal.
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3 INSTALLATION
OPTISWIRL 4070 C
3.6.3 Installing devices in sandwich design
Figure 3-13: Installation using centering ring
30
1
2
3
4
5
6
Measuring sensor
Centering ring
Bolts with fixing nuts
Hole
Hole
Gasket
•
•
•
•
•
•
•
•
•
•
Push the first bolt 3 through the hole 5 of both flanges.
Screw on the nuts and washers to both ends of the bolt 3 but do not tighten them.
Install the second bolt through the holes 4.
Place the measuring sensor 1 between the two flanges.
Insert the gaskets 6 between measuring sensor 1 and flanges and align them.
Check that the flange is concentric.
Install the remaining bolts, washers and nuts. Do not yet tighten the nuts.
Turn the centring ring 2 in a counter-clockwise direction and align the device.
Check that the gaskets 6 are concentric; they must not protrude into the pipe cross-section.
Now tighten all nuts bit by bit alternately across the diagonal.
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OPTISWIRL 4070 C
ELECTRICAL CONNECTIONS 4
4.1 Safety instructions
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
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4 ELECTRICAL CONNECTIONS
OPTISWIRL 4070 C
4.2 Connecting the signal converter
Figure 4-1: Signal converter housing with housing cover
1
2
3
4
5
6
7
8
Housing cover of the electrical terminal compartment
Electrical connection terminals with the housing cover open
Terminal A current output Terminal A+ current output +
Terminal B pulse output Terminal B+ Pulse output +
PE terminal in housing
PE terminal on connection piece between measuring sensor and signal converter.
Both grounding terminals 7 and 8 are equally effective from a technical point of view.
The following procedures are to be performed:
• Unscrew the housing cover 1 of the electrical terminal compartment.
• Thread the connection cable through the leadthrough in the housing.
• Connect the cable for the current output and the cable for the optional pulse output as shown
in the cable terminal diagrams below. To facilitate installation the connection plug can be
removed from the device. The plug is configured in such a way as to prevent reverse polarity.
• Connect the grounding to terminal 7 alternatively use the PE terminal on the connection
piece between measuring sensor and signal converter 8.
• Tighten the cable glands.
• Hand-tight the housing cover with gasket.
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OPTISWIRL 4070 C
ELECTRICAL CONNECTIONS 4
4.3 Electrical connection of current and pulse output
• Current output:
In some cases, a shielded or twisted cable may be necessary. The cable shield may only be
earthed (grounded) at one place (on the power supply unit).
• Pulse output:
When using the pulse output, two separate signal circuits are necessary if the pulse output is
utilized together with analogue signals. Each signal circuit requires its own power supply.
The total resistance must be adapted so that the total current Itot does not exceed 100 mA.
• Connection current output on terminals A, A+
Connection pulse output on terminals B, B+
Figure 4-2: Electrical connection of current and pulse output
1 Power supply per signal circuit
2 Optional display unit
3 Load for HART® ≥ 250 Ω
4 e.g. counter
The maximum load resistance is calculated as follows:
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4 ELECTRICAL CONNECTIONS
OPTISWIRL 4070 C
4.3.1 Power supply
INFORMATION!
The supply voltage has to be between 14 VDC and 36 VDC. This is based on the total resistance of
the measuring loop. To determine this, add up the resistances of each component in the
measuring loop (not including the measuring device).
The required supply voltage can be calculated using the formula below:
Uext. = RL * 22mA + 14V
where
Uext. = the minimum supply voltage and
RL = the total measuring loop resistance is.
INFORMATION!
The power supply has to be able to supply a minimum of 22 mA.
4.3.2 Totalizer / pulse output
The basic units for the totalizer and the pulse output are m3 for volume,
m3norm. for standard volume and kg for mass.
The unit and the conversion factor can be changed in menu item 3.2.8 "Conf.Tot". User specific
units (User Def.) can also be entered but the conversion factor must always be entered based on
the base unit. For a sample calculation see chapter 6.2.5 "Change units".
The maximum frequency of the pulse output is 0.5 Hz.
Figure 4-3: Pulse output
1
2
3
4
34
fmax ≤ 0.5 Hz
closed
open
Pulse ≥ 250 ms
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ELECTRICAL CONNECTIONS 4
OPTISWIRL 4070 C
The pulse output is a passive "open collector" output which is electrically separated from the
current interface and the measuring sensor. It can be configured as a high current output or
NAMUR output using a jumper on the amplifier board.
Jumper in NAMUR setting
Ri = 900 Ω
Umax = 36 VDC
The maximum frequency of the pulse output is fmax = 0.5 Hz
Jumper in high current setting
Open:
Maximum voltage Umax = 36 VDC
Closed current IR < 1 mA
Closed:
Maximum current Imax = 100 mA
Voltage U < 2 VDC
The maximum frequency of the pulse output is fmax = 0.5 Hz
Figure 4-4: Jumper settings pulse output
1
2
3
4
Electronic insert
Jumper on board
Jumper in high current setting
Jumper in NAMUR setting
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4 ELECTRICAL CONNECTIONS
OPTISWIRL 4070 C
4.4 Grounding connections
The grounding can be done either by connecting the PE terminal in the housing or the PE
terminal on the connection piece between measuring sensor and signal converter. Both of these
electrical connections are equally effective from a technical point of view.
Figure 4-5: Grounding connection
1 Electrical grounding connection on connection piece between measuring sensor and signal converter.
2 Electrical grounding connection on housing
DANGER!
The measuring device has to be grounded properly to achieve accurate measurement. The
grounding wire may not transfer any interference voltage.
Do not use this grounding wire to ground any other items of electrical equipment.
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OPTISWIRL 4070 C
ELECTRICAL CONNECTIONS 4
4.5 Protection category
The measuring device meets all requirements of protection category IP66/67.
DANGER!
After all servicing and maintenance work on the measuring device, the specified protection
category must be ensured again.
Figure 4-6: Cable feedthrough
Therefore it is essential to observe the following points:
• Use only original gaskets. They must be clean and free of any damage. Defective gaskets must
be replaced.
• The electrical cables used must be undamaged and must comply with regulations.
• The cables must be laid with a loop 1 upstream of the measuring device to prevent water
from getting into the housing.
• The cable feedthroughs 2 must be tightened.
• Align the measuring device so that the cable feedthrough is never facing up 3.
• Close the unused cable feedthroughs using blind plugs 4.
• Do not remove the required cable bushing from the cable feedthrough.
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5 START-UP
OPTISWIRL 4070 C
5.1 Start
After the device is switched on, the display shows the following in sequence
1. Testing...
2. Device type
Sofware Version - Revision
The device performs a self-test and switches to measurement mode. Here, all of the parameters
preset for the customer are analysed and checked for plausibility, and the current measured
value is displayed.
5.2 Start-up and control
INFORMATION!
The flowmeter is largely maintenance-free.
Observe the application limits in respect of temperature and medium. Additional information
refer to Technical data on page 67.
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OPERATION 6
OPTISWIRL 4070 C
6.1 Display and operating elements
With the cover open the device is operated by using the mechanical keys on the front; with the
cover closed a bar magnet is used.
CAUTION!
The switching point of the magnetic sensors is directly under the glass panel above the
appropriate symbol. Only touch the symbol vertically and from the front using the bar magnet.
Touching it from the side may cause a malfunction.
Figure 6-1: Display and operating elements
1
2
3
4
5
6
7
Enter button (bar magnet)
Right button (bar magnet)
Up button (bar magnet)
Up button (mechanical)
Enter button (mechanical)
Right button (mechanical)
Display
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6 OPERATION
OPTISWIRL 4070 C
The mechanical keys and keys for the bar magnet have the same functionality. In this
documentation the keys are represented as symbols to describe the operating functions:
Mechanical
Bar magnet
Symbol
→
↑
^
Table 6-1: Description of keys
6.2 Operating principles
6.2.1 Functional description of the keys
→
Switch from measuring mode to menu mode
Switch to one menu level lower
Open menu item and activate change mode
In change mode: Move the input cursor one position to the right; after the last digit the
input cursor jumps back to the beginning.
↑
In measuring mode: Switch between measured values and error messages
Change between the menu items within a menu level
In change mode: Changing parameters and settings; running through the available
characters; shifting the decimal point to the right.
^
Switch to one menu level higher
Return to measuring mode with a query whether the data should be accepted
Table 6-2: Description of the operating keys
6.2.2 Switch from measuring mode to menu mode
40
Measuring mode
Operation
Menu mode
156.3
kg/h
→
1.1.1
Language
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OPERATION 6
OPTISWIRL 4070 C
6.2.3 Navigation within the menu structure
Navigation within the menu is by means of the and ^ buttons. Pressing button takes you one
menu level lower, ^ takes you one menu level higher.
If you are already located at the lowest level (function level), you can use the button to go in the
change mode, which can be used to set data and values.
If you are located at the first level (main menu), you can use the ^ key to exit the menu mode and
return to the measuring mode.
Measuring
mode
→
→
Main menu
↑
^
Sub-menu
↑
^
→
^
Function
↑
→
Edit
→ ↑ ^
^
Table 6-3: Navigation menu structure
6.2.4 Changing the settings in the menu
• Use the and ↑ keys to navigate in the menu in which you want to change a setting or value.
Use the key to activate the change mode in the selected menu.
i The current values or settings are displayed.
• Use the and ↑ keys to change the value or setting.
Save the new value or setting using the ^ key.
Some menu items contain several setting options. They are displayed in sequence by pressing
the ^ key.
i Takes you back to the main menu.
• Press the ^ key to save the settings.
The query "Save Yes" appears. Switch between "Yes" and "No" by pressing the ↑ key.
i
Switch between "YES" and "NO" by pressing the ↑ key.
Save Yes
^
Changes saved.
An update is carried out and the display returns to measuring mode.
Save No
^
Changes not saved.
The display returns to measuring mode.
CAUTION!
Each time parameters or settings are changed, the measuring device carries out an internal
plausibility check.
If implausible inputs have been made, the display remains in the current menu, and the changes
are not saved.
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6 OPERATION
OPTISWIRL 4070 C
Example: changing the default parameter from m3/h to l/min
Procedure
Display
Procedure
Display
107.2
m3/h
5
^
0000600.00
L/min
1
3x
1.1.1
1
Language
6
^
Display
Unit
2
3x↑
1.1.4
4
Max. Flow
7
^
1.1.4
Max. Flow
3
→
m3/h
Unit
8
^
Save Yes
4
3x↑
L/min
Unit
9
^
1787.0000
L/min
6.2.5 Changing units
When entering numbers and values in floating point format, the maximum possible accuracy is
0.003%. The accuracy depends on both the position of the decimal point and the length of the
number entered.
Numerical values and factors are displayed in the first line of the 10-digit display. Numerical
values are either displayed in floating point format (123.4567890) or are expressed in exponential
format (123456E002). The conversion factor of the totalizer and the pulse output is, however,
expressed in whole numbers.
Input values exponential format
Display position
1
2
3
4
5
6
7
8
9
10
Decimal point
-
•
•
•
•
-
-
-
-
-
Input values
0 ...
9
0 ...
9
0 ...
9
0 ...
9
0 ...
9
0 ...
9
E
or
0
0 ...
3
0 ...
8
To select the exponential function, the decimal point must be located between the 2nd and 5th
decimal position.
Flow units
The base units are m3/h for volume flow measurement, m3/h stand. for standard volumetric flow
measurement and kg/h for mass flow measurement.
The flow units can be changed in menu item 1.1.4 "Max.Flow".
User defined units can be entered using "User Def."
The unit (text) as well as the conversion factor (number) can be entered here.
The conversion factor must always be entered based on the base unit.
Conversion
Formula
Example:
New unit (User Def.)
=
A1 Coeff.
*
Base unit
1 litre / h
=
0.001
*
m3/h
Menu items
42
1.1.3
Maes.Inst
Volume / Standard volume / Mass
1.1.4
Max. Flow
Unit (User Def.) / Text / A1 Coeff. / Max. Flow / Flow Displ
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OPERATION 6
OPTISWIRL 4070 C
Totalizer / pulse output
The base units for the totalizer and the pulse output are m3 for volume,
m3 norm. for standard volume and kg for mass.
The unit and the conversion factor can be changed in menu item 3.2.8 "Tot.Conf.". User defined
units (User Def.) can be selected and entered. The conversion factor of the unit must always be
entered based on the base unit.
The maximum pulse output frequency is 0.5 Hz. To ensure that the pulse output does not exceed
0.5 Hz, the conversion factor of the totalizer must be selected and set accordingly. The pulse
output represents an exact copy of the whole number value of the internal totalizer.
Max. pulses per hour
fmax. ≤ 0.5 Hz
1 pulse-break ≥ 2 seconds
Max. pulses / hour = 1800 pulses
Example
Flow Qmax.
Factor A1 Coef.
Pulses / litre
Pulses / h
Comment
5.6 m3/h
0.001
1 pulse / 1 litre
5600
not possible
0.01
1 pulse / 10 litres
560
560 < 1800 = ok.
Menu items
1.1.3
Maes.Inst
Volume / Standard volume / Mass
1.1.4
Max. Flow
Unit (User Def.) / Text / A1 Coeff. / Max. Flow / Flow Displ
3.2.5
Function P
Yes / No
3.2.7
Totalizer
Tot. on / Tot. off
3.2.8
Tot. Conf.
User def. / Unit Text / A1 Coeff. / Preset Value / Reset / Display
6.2.6 Measures in the event of faulty indications
If the indications on the display or the responses to keypad commands are faulty, you have to do
a hardware reset. Switch the power supply OFF and ON again.
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6 OPERATION
OPTISWIRL 4070 C
6.3 Overview of the most important functions and units
INFORMATION!
A complete list of all functions and short descriptions is provided in the appendix. All default
parameters and settings are adapted for the specific customer.
Level
Designation Explanation
1.1.1
Language
Select the menu language
1.1.4
Max. Flow
Maximum flow rate
The value set is represented by a 20 mA analogue current output. If the current
value exceeds the preset value, an alarm is indicated.
1.1.5
Min. Flow
Minimum flow rate
The set value does not represent the 4 mA value of the current output.
1.1.6
Timeconst.
Time constant, damping value [s]
2.1.1
Test I
Check current output
2.1.2
Test P
Test pulse output
3.1.1
Error Msg.
Error indicator
Yes: error messages are displayed
No: error messages are suppressed. A flashing cursor at the top left indicates
that error messages are present.
Table 6-4: The most important functions
Volume mass units
Volume
Standard volume Mass
Liquids, steams, gases
Air
Gas
Liquids, steams, gases
m3/h
m3/min
m3/s
L/h
L/min
L/s
ft3/h
ft3/min
ft3/s
gal/h
gal/min
gal/s
ImpGal/h
ImpGal/min
ImpGal/s
cm3/h
cm3/min
cm3/s
dm3/h
dm3/s
bbl/h
bbl/d
User Def.
FAD m3/h
FAD m3/min
FAD m3/s
FAD L/h
FAD L/min
FAD L/s
FAD ft3/h
FAD ft3/min
FAD ft3/s
User Def.
m3/h (norm)
m3/min (norm)
m3/s (norm)
L/h (norm)
L/min (norm)
L/s (norm)
ft3/d (std.)
ft3/h (std.)
ft3/min (std.)
ft3/s (std.)
User Def.
kg/h
kg/min
kg/s
t/h
t/min
t/s
lb/h
lb/min
lb/s
g/min
g/s
User Def.
Table 6-5: Flow measurements and units
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OPERATION 6
OPTISWIRL 4070 C
Unit totalizer
Volume
Standard volume
Mass
Liquids, steams, gases
Gas
Liquids, steams, gases
m3
L
ft3/h
ft3
gal
ImpGal
cm3
dm3
bbl
User Def.
m3 norm
L norm
ft3 std.
User Def.
kg
t
lb
g
User Def.
Table 6-6: Totalizer units
Temperature - Pressure - Power - Energy - Density units
Temp.
Absolute
pressure
(over)
Power
Energy
Density
°C
°F
K
User Def.
Pa(g)
kPa(g)
MPa(g)
kg/ms2(g)
kp/cm2(g)
atm(g)
torr(g)
bar(g)
mbar(g)
psi(g)
lbf/ft2(g)
kgf/cm2(g)
inHg(g)
mmHg(g)
mmH2O(g)
User Def.
kJ/h
MJ/h
GJ/h
Btu/h th
kcal/h
User Def.
kW
MW
TR
kJ
MJ
GJ
Btu th
kcal
kWh
MWh
User Def.
kg/m3
kg/L
g/L
h/mL
g/cm3
g/ft3
g/ImpGal
g/gal
kg/gal
Lb/gal
Lb/ImpGal
User Def.
Table 6-7: Additional units
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6 OPERATION
OPTISWIRL 4070 C
6.4 Error messages
Error message
Cause
Measure
No Signal
No signal from vortex amplifier
Check connector
In the event of measuring sensor
problems contact service.
Low freq
Sample frequency too low
Contact service.
High Freq
Sample frequency too high
Contact service.
Low Flow
Flow rate less than the set minimum
flow rate qmin
Signal converter continues to display the
current flow rate but the accuracy of the
measurement may be affected.
Q too high
Flow rate higher than the set maximum
flow rate qmax
Corrective measures depend on the
application!
If the flow rate exceeds the maximum
value, the measuring sensor may be
physically damaged.
Inv. Config.
Invalid configuration data in FRAM
(permanent memory)
Check entire configuration!
Contact service if error message
persists.
Amp. Fail
Error in the pre-amplifier stage
Contact service.
Chk. Instal.
Quality of the vortex signal too poor
1. Check qmin
2. Excessive pipe vibration and faulty
flow profile
Low Signal
Amplitude of vortex signal is too low
1. qmin ok?
2. If qmin OK, contact service
Hi. Signal
Amplitude of vortex signal is too high
Occurs with media of high density
1. Check qmax
2.If qmax OK, contact service
L.Temp.Phy
Operating temperature lower than
specified
Take corrective measures within
process.
H.Temp.Phy
Operating temperature higher than
specified
Hi.P.Phys
Pressure higher than specified
Take corrective measures within
process as quickly as possible,
otherwise both the measuring sensor
and the signal converter may be
damaged.
Tsens Shrt.
Temperature sensor short circuit
Tsens Open
Open temperature sensor
P. Sen. Fail
Faulty pressure sensor
Shows error at temperature sensor!
Contact service.
Displays error at pressure sensor!
Contact service.
Table 6-8: Error messages
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OPERATION 6
OPTISWIRL 4070 C
6.5 Menu structure
6.5.1 Overview of firmware versions
There are three firmware versions, each of which is tailored to a different use of the
measuring device:
• Basic: liquids and gases without compensation, saturated steam with density compensation
using the temperature
• Steam: saturated and superheated steam with density compensation using pressure and
temperature, gross heat meter
• Gas: gas, gas mixture and wet gas with density compensation using pressure and
temperature, FAD (free air delivery measurement)
The menu structures differ from one another depending on the firmware version.
The following table contains an overview of all menu items in the first menu level. For a
complete description of the menu, note the firmware version of your measuring device and
follow the relevant instructions in the table.
Menu items
Firmware version
Basic
Firmware version
Steam
1. Quick setup
refer to Menu item Quick Setup on page 49
2. Tests
refer to Menu item Tests on page 50
3. Setup
refer to Menu item
Setup (firmware version
- basic) on page 51
5. Service
The service menu is only accessible to service personnel and is not described.
refer to Menu item
Setup (firmware version
- steam) on page 54
Firmware version
Gas
refer to Menu item
Setup (firmware version
- gas) on page 58
Table 6-9: Overview of menu structure
INFORMATION!
The measuring device has been preset at the factory in accordance with the customer order.
Therefore, subsequent configuration via the menu is only necessary if the intended use of the
measuring device changes.
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6 OPERATION
OPTISWIRL 4070 C
6.5.2 Entering values in change mode
→
Moves the insertion point one position to the right; after the last position, the insertion point
returns to the beginning.
↑
Cycles through available values and characters; moves the decimal point to the right.
^
Accepting the entry.
6.5.3 Character selection in change mode
Depending on the menu function, you can choose from the following characters:
Numbers
0
1
2
3
4
5
6
7
8
9
Lowercase letters
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Uppercase letters
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
%
&
:
<
=
>
Special characters
°
2
3
"
-
.
/
1
1 "blank"
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OPERATION 6
OPTISWIRL 4070 C
6.5.4 Menu item Quick Setup
Level
Designation
1.1.1
Language
→
1.1.2
Location
→
1.1.3
Maes.Inst
→
1.1.4
Selection / entry field
Select menu language
German ↑...
German language
French ↑…
French language
English ↑...^
English language
0000000000
Location↑…↑...↑...^
Enter the name of the location (max.
10 characters)
Select type of flow measurement
Volume ↑…
Volume measurement
Norm. Vol. ↑… 1
Standard volume flow measurement
Mass ↑...^
Mass flow measurement
Max. Flow
→
2
Explanation
Set maximum flow rate
m3/h
Unit ↑...^
Select unit for volume flow
measurement
888888888
Upp.Limit
3
4
1.1.5
1.1.6
1
2
3
4
00600.0000 or other value
m3/h ↑…↑...↑...^
Enter value for the maximum volume
flow
Display Unit /
Display %Max Flow ↑...^
Display flow rate in units /
in % of maximum flow rate
m3/h norm
Unit ↑...^
Select unit for standard volume flow
measurement
00600.0000 or other value
m3/h norm ↑…↑...↑...^
Enter value for the maximum
standard volume flow rate
Display Unit /
Display %Max Flow ↑...^
Display flow rate in units /
in % of maximum flow rate
kg/h
Unit
Select unit for mass flow
measurement
00600.0000 or other value
kg/h ↑…↑...↑...^
Enter value for the maximum mass
flow rate
Display Unit /
Display %Max Flow ↑...^
Display flow rate in units /
in % of maximum flow rate
Min. Flow
→
001111111
00300.0000
m3/h ^
The minimum flow rate value is
factory-set.
Timeconst.
→
00002.0000
s ↑…↑...↑...^
Enter the time constant for the
measured value output in seconds
(0 – 20 s)
0: disabled
only with gas
available if Maes.Inst = Volume (see menu item 1.1.3)
available if Maes.Inst = Norm. Vol. (see menu item 1.1
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