KROHNE OPTISWIRL 4070 Operating Manual
OPTISWIRL 4070
OPTISWIRL 4070
OPTISWIRL 4070OPTISWIRL 4070
Vortex flowmeter
Handbook
Handbook
HandbookHandbook
© KROHNE 04/2016 - 4000150609 - MA OPTISWIRL 4070C R10 en
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IMPRINT
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All rights reserved. It is prohibited to reproduce this documentation, or any part thereof, without
the prior written authorisation of KROHNE Messtechnik GmbH.
Subject to change without notice.
Copyright 2016 by
KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)
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OPTISWIRL 4070
CONTENTS
1 Safety instructions 6
1.1 Intended use ..................................................................................................................... 6
1.2 Certifications .................................................................................................................... 7
1.3 Safety instructions from the manufacturer ..................................................................... 8
1.3.1 Copyright and data protection ................................................................................................ 8
1.3.2 Disclaimer ............................................................................................................................... 8
1.3.3 Product liability and warranty ................................................................................................ 9
1.3.4 Information concerning the documentation........................................................................... 9
1.3.5 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 Device versions............................................................................................................... 11
2.2.1 Devices with connection flange ............................................................................................ 12
2.2.2 Sandwich version .................................................................................................................. 12
2.2.3 Devices for dual measurement and twofold reliability ........................................................ 13
2.2.4 Device version remote .......................................................................................................... 13
2.2.5 Device description................................................................................................................. 14
2.2.6 Free air delivery measurement - FAD (optional) ................................................................. 14
2.2.7 Gross heat meter .................................................................................................................. 15
2.2.8 Dual seal ............................................................................................................................... 16
2.3 Nameplate ...................................................................................................................... 17
2.4 Description code............................................................................................................. 18
3 Installation 19
3.1 General notes on installation ......................................................................................... 19
3.2 Storage ........................................................................................................................... 19
3.3 Transport ........................................................................................................................ 19
3.4 Installation conditions ....................................................................................................20
3.4.1 Prohibited installation when measuring liquids .................................................................. 21
3.4.2 Recommended installations for measurement of liquids ................................................... 22
3.4.3 Prohibited installation when measuring vapours and gases............................................... 23
3.4.4 Recommended installations for measurement of steam and gases................................... 23
3.4.5 Pipelines with control valve .................................................................................................. 24
3.4.6 Preferred mounting position ................................................................................................ 24
3.4.7 Turning the connection housing ...........................................................................................25
3.4.8 Turning the display ............................................................................................................... 26
3.4.9 Heat insulation ...................................................................................................................... 27
3.5 Inlet and outlet runs....................................................................................................... 28
3.5.1 Minimum inlet runs............................................................................................................... 28
3.5.2 Minimum outlet sections ...................................................................................................... 29
3.5.3 Flow straightener.................................................................................................................. 29
3.6 Installation...................................................................................................................... 30
3.6.1 General installation notes..................................................................................................... 30
3.6.2 Installing devices in flange design ....................................................................................... 31
3.6.3 Installing devices in sandwich design .................................................................................. 32
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CONTENTS
OPTISWIRL 4070
4 Electrical connections 33
4.1 Safety instructions.......................................................................................................... 33
4.2 Connecting the signal converter .................................................................................... 34
4.3 Electrical connection of current and pulse output ........................................................ 35
4.3.1 Power supply......................................................................................................................... 36
4.3.2 Totalizer / pulse output......................................................................................................... 36
4.4 Remote version connection............................................................................................ 38
4.5 Grounding connections................................................................................................... 39
4.6 Ingress protection .......................................................................................................... 41
5 Start-up 42
5.1 Start ................................................................................................................................ 42
5.2 Start-up and control .......................................................................................................42
6 Operation 43
6.1 Display and operating elements .................................................................................... 43
6.2 Operating principles .......................................................................................................44
6.2.1 Functional description of the keys........................................................................................ 44
6.2.2 Switch from measuring mode to menu mode...................................................................... 44
6.2.3 Navigation within the menu structure.................................................................................. 45
6.2.4 Changing the settings in the menu....................................................................................... 45
6.2.5 Changing units ...................................................................................................................... 46
6.2.6 Measures in the event of faulty indications.......................................................................... 47
6.3 Overview of the most important functions and units..................................................... 48
6.4 Error messages.............................................................................................................. 50
6.5 Menu structure............................................................................................................... 51
6.5.1 Overview of firmware versions ............................................................................................. 51
6.5.2 Entering values in change mode .......................................................................................... 52
6.5.3 Character selection in change mode.................................................................................... 52
6.5.4 Menu item Quick Setup......................................................................................................... 53
6.5.5 Menu item Tests.................................................................................................................... 54
6.5.6 Menu item Setup (firmware version - basic) ........................................................................55
6.5.7 Menu item Setup (firmware version - steam) ...................................................................... 58
6.5.8 Menu item Setup (firmware version - gas)........................................................................... 62
7 Service 67
7.1 Exchanging signal converter / LC display...................................................................... 67
7.2 Spare parts availability...................................................................................................68
7.3 Availability of services .................................................................................................... 68
7.4 Returning the device to the manufacturer..................................................................... 68
7.4.1 General information.............................................................................................................. 68
7.4.2 Form (for copying) to accompany a returned device............................................................ 69
7.5 Disposal .......................................................................................................................... 69
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CONTENTS
8 Technical data 70
8.1 Functional principle........................................................................................................ 70
8.2 Technical data................................................................................................................. 71
8.3 Dimensions and weights ................................................................................................ 75
8.3.1 Flange versions..................................................................................................................... 75
8.3.2 Sandwich version .................................................................................................................. 82
8.3.3 Dimensions remote version.................................................................................................. 84
8.4 Flow tables ..................................................................................................................... 85
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SAFETY INSTRUCTIONS
1.1 Intended use
CAUTION!
Responsibility for the use of the measuring devices with regard to suitability, intended use and
corrosion resistance of the used materials against the measured fluid lies solely with the
operator.
INFORMATION!
This device is a Group 1, Class A device as specified within CISPR11:2009. It is intended for use in
industrial environment. There may be potential difficulties in ensuring electromagnetic
compatibility in other environments, due to conducted as well as radiated disturbances.
INFORMATION!
The manufacturer is not liable for any damage resulting from improper use or use for other than
the intended purpose.
The vortex flowmeters are made to measure the flow of gases, vapours 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
OPTISWIRL 4070
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
CAUTION!
If the danger of waterhammers can occur in steam networks appropriate condensate separators
have to be installed.
Suitable measures must be taken to avoid water cavitation if it is a possible risk.
®
• The sensors are made from stainless steel 316 L (1.4404) or Hastelloy
• 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.
• Observe the data indicated on the nameplate for PS, TS and PT (PED 97/23/EC).
• 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.
C22.
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OPTISWIRL 4070
1.2 Certifications
The device fulfils the statutory requirements of the following EC directives:
• Pressure equipment directive
• EMC directive
• Devices for use in hazardous areas: ATEX directive
as well as
• EN 61010
• NAMUR recommendations NE 21 and NE 43
SAFETY INSTRUCTIONS
1
The manufacturer certifies successful testing of the product by applying the CE marking.
A CE declaration of conformity regarding the directives in question and the associated
harmonised standards can be downloaded from our internet site.
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
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SAFETY INSTRUCTIONS
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 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.
OPTISWIRL 4070
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 or incidental 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.
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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 or 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.
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 icons as shown below.
SAFETY INSTRUCTIONS
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SAFETY INSTRUCTIONS
1.3.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
DANGER!
This warning 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.
OPTISWIRL 4070
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
HANDLING
HANDLINGHANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
i RESULT
RESULT
RESULTRESULT
This symbol refers to all important consequences of the previous actions.
1.4 Safety instructions for the operator
10
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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OPTISWIRL 4070
2.1 Scope of delivery
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
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.
DEVICE DESCRIPTION
2
Figure 2-1: Scope of delivery
1 Measuring device in ordered version
2 Quick Start
3 Certificates, calibration report and parameter datasheet
4 CD with complete documentation
5 Bar magnet
2.2 Device versions
The devices are delivered in the following variants:
• Signal converter with display
• Measuring sensor in flanged design, Sensor F
• Measuring sensor in sandwich design, Sensor S
• Remote version - Measuring sensor with separated remote signal converter
The following designs are available as options:
• with pressure sensor
• with shut-off valve for the pressure sensor
• Flange version, measuring sensor with single reduction F1R
• Flange version, measuring sensor with double reduction F2R
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DEVICE DESCRIPTION
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
4 Flange sensor version with inlet reduction
OPTISWIRL 4070
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
2.2.3 Devices for dual measurement and twofold reliability
This is a genuine redundant system with two
independent measuring sensors and two
signal converters.
This provides twofold functional reliability and
availability of the measurement.
This variant is ideally suited for
measurements in multi-product pipelines. In
such pipelines, two different products are
moved through one after the other.
One signal converter can be programmed for
one product, and the other signal converter
for the other product.
2
2.2.4 Device version remote
1 Sensor terminal box
2 Sensor
3 Signal converter
4 Wall mount bracket connection box
With the remote variant, the measuring sensor and signal converters are located separately. The
10-pin, shielded connection cable may not exceed 15m in length.
The marking of the devices is shown on the nameplates below (see also description code). On
both the compact devices and the remote versions, the main plate is located on the converter
housing. On the remote versions there is an additional marking on the measuring sensor.
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DEVICE DESCRIPTION
2.2.5 Device description
Figure 2-4: Device description
1 Signal converter
2 Cable feedthrough grey, standard version
3 Pressure sensor, optional
4 Shut-off valve, optional
5 Measuring sensor
6 Centering ring
OPTISWIRL 4070
2.2.6 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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OPTISWIRL 4070
2.2.7 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 as a constant. The
vortex flowmeter has a special feature that can calculate the flow of vapour as power output. The
enthalpy tables are permanently programmed in the memory of the device.
The online density-compensated mass flow is multiplied by the correct enthalpy to obtain the
flow as power output.
DEVICE DESCRIPTION
2
Power [Q
If the gross heat meter is activated, both the totalizer for the absolute steam consumption as
well as that for the energy run internally.
] = mass flow [Qm] x enthalpy [H]
H
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DEVICE DESCRIPTION
2.2.8 Dual seal
To comply with the requirements of ANSI/ISA 12.27.01-2003 "Requirements for Process Sealing
Between Electrical Systems and Flammable or Combustible Process Fluid", a membrane vent is
integrated in the neck of the device. This vent is located between the primary seal (process) and
the secondary seal (electronics compartment) and works to prevent pressure build-up in the
device neck, thus preventing product from penetrating the electronics compartment in the
unlikely event of a leak in the primary seal.
OPTISWIRL 4070
1 Membrane vent
The seal between the pick-up and the measuring tube is considered as the primary seal. The
material used for it is always the same as that used for the measuring tube itself (e.g. stainless
®
steel 1.4404 / 316L or Hastelloy
relation to process parameters (media, temperature) must be taken into account.
By using the membrane vent, all requirements for a "DUAL SEAL" version in terms of the above
mentioned standards are met.
• It protects the electronics from the process media.
• Any leak in the primary seal can be detected.
Even though there is no reason to expect the seal to fail, regular visual checks should still be
carried out to detect any possible leak as early as possible.
In the event of a leak, contact the manufacturer's service department to service or replace the
device.
C22). When selecting a material, corrosion resistance in
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2.3 Nameplate
INFORMATION!
Check the device nameplate to ensure that the device is delivered according to your order. Check
for the correct supply voltage printed on the nameplate.
DEVICE DESCRIPTION
2
Figure 2-5: Example of nameplate
1 Device type
2 Manufacturer
3 Sensor:
S - Sandwich
F - Flange
F1R - Flange single reduction
F2R - Flange double reduction
4 Notified bodies for ATEX & PED (only available if this option was ordered)
5 Connection data: nominal diameter and pressure rating
6 PED data
7 Ex data (only available if this option was ordered)
8 Electrical connection data
9 Manufacturer's website
Figure 2-6: Example of nameplate
1 Serial number
2 Order number
3 Type code
4 Item number
5 Fluid data
6 Software variant
7 Tag number
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DEVICE DESCRIPTION
2.4 Description code
The description code* consists of the following elements:
Compact device
1 Product designation
2 Type series
3 Compact measuring device
4 Marking without influence on the explosion safety protection
Signal converter remote version
1 Product designation
2 Type series
3 Remote version
4 Marking without influence on the explosion safety protection
OPTISWIRL 4070
Sensor remote version
1 Product designation
2 Type series sensor
3 Marking without influence on the explosion safety protection
* positions which are not needed are omitted (no blank positions)
The remote version consisting of the OPTISWIRL 4000 flow sensor and the VFC 070 F signal
converter is called the OPTISWIRL 4070 F.
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OPTISWIRL 4070
3.1 General notes on installation
INFORMATION!
Inspect the packaging carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
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, dust-free location.
• Avoid extended direct exposure to the sun.
• Store the device in the original packaging.
• The permissible storage temperature for standard devices is -40...+85°C / -40...+185°F.
INSTALLATION
3
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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INSTALLATION
3.4 Installation conditions
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.
CAUTION!
Eliminate vibrations in the pipeline by properly installing the measuring device. Any vibration will
distort the measuring result.
CAUTION!
When installing the device in the piping, the following points must be observed:
•
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.
OPTISWIRL 4070
INFORMATION!
If there is a risk of water hammers in steam networks, appropriate condensate separators must
be installed.
Suitable measures must be taken to avoid water cavitation if it is a possible risk.
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3.4.1 Prohibited installation when measuring liquids
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.
INSTALLATION
3
Figure 3-3: Downstream pipe and outlet
CAUTION!
Installing the device in a downstream pipe 3 or upstream pipe of an outlet 4. There is the risk of
partially filled pipes leading to inaccurate measurements.
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INSTALLATION
3.4.2 Recommended installations for measurement of liquids
CAUTION!
The required inlet and outlet sections must be observed.
OPTISWIRL 4070
1 If the device is installed in a downpipe, a standpipe must be installed immediately after it.
2 Installing the device in an inclined standpipe.
3 Installing the device in a vertical standpipe.
4 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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3.4.3 Prohibited installation when measuring vapours and gases
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.
INSTALLATION
3
3.4.4 Recommended installations for measurement of steam and gases
CAUTION!
The required inlet and outlet sections must be observed.
1 Inlet and outlet falling
2 Rising inlet - falling outlet
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INSTALLATION
3.4.5 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.
OPTISWIRL 4070
Figure 3-4: Pipeline with control valve
1 Recommended: installing the device before the control valve at a distance of ≥ 5 DN
2 Not recommended: Installing the flowmeter directly downstream of control valves, due to vortex formation.
3.4.6 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.
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3.4.7 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.
INSTALLATION
3
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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INSTALLATION
3.4.8 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
installed below a pipe, turn 180
OPTISWIRL 4070
°
; if
°
.
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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OPTISWIRL 4070
3.4.9 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.
INSTALLATION
3
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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