KROHNE DP-7060C User Manual
Handbook
Handbook
OPTIBAR DP 7060 C
OPTIBAR DP 7060 C
OPTIBAR DP 7060 COPTIBAR DP 7060 C
HandbookHandbook
Differential pressure transmitter for measuring flow,
level, differential pressure, density and interface
Electronic Revision:
ER 1.1.x
(SW.REV. 1.0.x)
© KROHNE 04/2014 - 4003292001 - MA OPTIBAR DP 7060 C R01 en
: IMPRINT :::::::::::::::::::::::::::::::::::::::
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 2014 by
KROHNE Messtechnik GmbH - Ludwig-Krohne-Str. 5 - 47058 Duisburg (Germany)
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OPTIBAR DP 7060 C
CONTENTS
1 Safety instructions 6
1.1 Intended use ..................................................................................................................... 6
1.2 Technical limits ................................................................................................................ 7
1.3 Measured products........................................................................................................... 7
1.4 Certification ...................................................................................................................... 7
1.5 Safety instructions from the manufacturer ..................................................................... 8
1.5.1 Copyright and data protection ................................................................................................ 8
1.5.2 Disclaimer ............................................................................................................................... 8
1.5.3 Product liability and warranty ................................................................................................ 9
1.5.4 Information concerning the documentation........................................................................... 9
1.5.5 Warnings and symbols used................................................................................................. 10
1.6 Safety instructions for the operator............................................................................... 10
2 Device description 11
2.1 Scope of delivery............................................................................................................. 11
2.2 Device description .......................................................................................................... 12
2.2.1 Device design ........................................................................................................................ 12
2.2.2 Connection variants .............................................................................................................. 13
2.3 Nameplates .................................................................................................................... 14
2.4 Terms and abbreviations................................................................................................ 15
3 Installation 16
3.1 General notes on installation ......................................................................................... 16
3.2 Protection category of the housing ................................................................................ 16
3.3 Packaging ....................................................................................................................... 16
3.4 Storage ........................................................................................................................... 17
3.5 Transport ........................................................................................................................ 17
3.6 Installation specifications .............................................................................................. 17
3.7 Mounting......................................................................................................................... 17
3.7.1 Rotating the housing............................................................................................................. 18
3.7.2 Mounting the display and adjustment module .....................................................................18
3.7.3 Process connections............................................................................................................. 19
3.7.4 Mounting bracket.................................................................................................................. 20
3.7.5 Manifolds............................................................................................................................... 21
3.7.6 Primary element ................................................................................................................... 21
3.7.7 Pressure connection with impulse line................................................................................ 21
3.7.8 Vibrations .............................................................................................................................. 21
3.7.9 Temperature limits ............................................................................................................... 21
3.8 Instructions for oxygen applications.............................................................................. 22
3.9 Venting ............................................................................................................................ 23
3.10 Measurement setup for flow measurement................................................................ 24
3.10.1 In gases and liquids with solids content............................................................................. 24
3.10.2 In vapours and pure liquids ................................................................................................ 25
3.11 Measurement setup for level measurement ............................................................... 26
3.11.1 In open vessels with impulse line.......................................................................................26
3.11.2 In closed vessels with gas-filled impulse lines.................................................................. 27
3.11.3 In closed vessels with liquid / condensate filled impulse lines ......................................... 28
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CONTENTS
OPTIBAR DP 7060 C
4 Electrical connections 29
4.1 Safety instructions.......................................................................................................... 29
4.2 Notes for electrical cables ............................................................................................. 29
4.2.1 Requirements for signal cables provided by the customer ................................................. 30
4.2.2 Laying electrical cables correctly......................................................................................... 30
4.2.3 Cable preparation ................................................................................................................. 31
4.2.4 Cable entry 1/2-14 NPT (female) ..........................................................................................32
4.2.5 Connector pin assignment.................................................................................................... 32
4.2.6 Connection to the power supply ...........................................................................................33
4.2.7 Cable shield and grounding .................................................................................................. 34
4.3 Electrical connection......................................................................................................35
4.3.1 Connection in the terminal compartment ............................................................................ 35
4.3.2 Single chamber housing .......................................................................................................36
4.3.3 Double chamber housing...................................................................................................... 37
4.3.4 Double chamber housing Ex d ia .......................................................................................... 38
4.4 Grounding the measuring device ................................................................................... 39
4.5 Description of the current output................................................................................... 39
5 Start-up 40
5.1 Start-up........................................................................................................................... 40
5.2 Keypad functions ............................................................................................................ 41
5.3 Quick setup ..................................................................................................................... 42
5.3.1 Adjustment differential pressure .........................................................................................43
5.3.2 Adjustment level ................................................................................................................... 43
5.3.3 Adjustment flow .................................................................................................................... 44
5.3.4 Adjustment density ............................................................................................................... 44
5.4 Extended adjustment...................................................................................................... 45
5.4.1 Start-up ................................................................................................................................. 45
5.4.2 Display................................................................................................................................... 48
5.4.3 Diagnosis............................................................................................................................... 49
5.4.4 Additional adjustments ......................................................................................................... 50
5.4.5 Info......................................................................................................................................... 51
5.5 Reset............................................................................................................................... 51
5.5.1 Delivery status ...................................................................................................................... 51
5.5.2 Basic settings........................................................................................................................ 51
5.6 Saving the device settings .............................................................................................. 52
5.6.1 Copy device settings.............................................................................................................. 52
5.7 Diagnosis memory.......................................................................................................... 53
5.8 Failures and diagnostics ................................................................................................ 54
5.8.1 Error codes ........................................................................................................................... 55
5.8.2 Check 4...20 mA signal.......................................................................................................... 57
5.8.3 Error messages via the display and operating module ....................................................... 57
5.8.4 Change electronic insert....................................................................................................... 57
5.8.5 Software update .................................................................................................................... 58
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OPTIBAR DP 7060 C
CONTENTS
6 Service 59
6.1 Replacement................................................................................................................... 59
6.2 Maintenance ................................................................................................................... 59
6.3 Spare parts availability...................................................................................................60
6.4 Availability of services .................................................................................................... 60
6.5 Repairs............................................................................................................................ 60
6.6 Returning the device to the manufacturer..................................................................... 60
6.6.1 General information.............................................................................................................. 60
6.6.2 Form (for copying) to accompany a returned device............................................................ 61
6.7 Disposal .......................................................................................................................... 61
7 Technical data 62
7.1 Measuring principle........................................................................................................62
7.2 Technical data................................................................................................................. 63
7.3 Pressure ranges............................................................................................................. 69
7.4 Ambient temperature effect on current output............................................................. 70
7.5 Dynamic output behaviour.............................................................................................. 71
7.6 Dimensions and weights ................................................................................................ 72
8 Description of HART interface 78
8.1 General description ........................................................................................................78
8.2 Software history ............................................................................................................. 78
8.3 Connection variants........................................................................................................79
8.3.1 Point-to-Point connection - analogue / digital mode........................................................... 80
8.4 Inputs/outputs and HART® dynamic variables and device variables............................ 80
8.5 Field Communicator 475 (FC 475).................................................................................. 81
8.5.1 Installation ............................................................................................................................ 81
8.5.2 Operation............................................................................................................................... 81
8.6 Field Device Tool / Device Type Manager (FDT / DTM).................................................. 81
8.6.1 Installation ............................................................................................................................ 81
9 Notes 82
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1 SAFETY INSTRUCTIONS
1.1 Intended use
DANGER!
For devices used in hazardous areas, additional safety instructions apply.
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!
The manufacturer is not liable for any damage resulting from improper use or use for other than
the intended purpose.
The OPTIBAR DP 7060 C is a differential pressure transmitter suitable for measuring flow, level,
differential pressure, density and interface of gases, vapours and liquids. The available
measurement ranges and the respective permissible overloads are indicated on the nameplate.
To observe the intended use, adhere to the following points:
OPTIBAR DP 7060 C
• Observe the instructions in this document.
• Comply with the technical specifications (for further information refer to
page 63).
• Only suitably qualified personnel may install and operate the device.
• Observe the generally accepted standards of good practice.
Technical data
CAUTION!
•
Any modification to the device, including drilling, sawing, trimming, welding and soldering of
parts, or partially painting over or coating, is prohibited.
•
Neither is it permitted to use the device as a climbing aid e.g. for installation purposes, as a
holder for cables, pipes or other loads.
•
The mounting or installation of parts is only permitted as described in this document, or
insofar as it has been authorised by the manufacturer or a certified service partner.
on
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OPTIBAR DP 7060 C
1.2 Technical limits
The device was constructed solely for use within the technical limits indicated on the nameplate
and in the technical data. Applications outside of these limits are not permitted and could lead to
significant risk of accident. For this reason, observe the following limits:
• Do not exceed the maximum working pressure (MWP).
• Do not exceed the indicated permissible operating temperature range.
• The permissible ambient temperatures given may not be exceeded or undershot.
• Observe the ingress protection of the housing during use.
1.3 Measured products
The device is designed to measure the pressure of vaporous, gaseous and liquid media. Prior to
using any corrosive or abrasive products, the operator must check the resistance of all materials
which are in contact with the product.
1.4 Certification
SAFETY INSTRUCTIONS 1
CE marking
The device fulfils the statutory requirements of the following EC directives:
• EMC Directive 2004/108/EC
• EMC specification acc. to EN 61326/A1
The manufacturer certifies successful testing of the product by applying the CE marking.
Pressure equipment directive 97/23/EC
Pressure equipment directive 97/23/EC
Pressure equipment directive 97/23/ECPressure equipment directive 97/23/EC
Devices with a permissible pressure PS ≤ 200 bar (20 MPa) / 2900 psi comply with Article 3
Section (3) and are not subject to a conformity assessment. These devices were designed and
manufactured in accordance with sound engineering practice (SEP).
The CE marking on the device does not apply to the Pressure Equipment Directive.
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1 SAFETY INSTRUCTIONS
1.5 Safety instructions from the manufacturer
1.5.1 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.
OPTIBAR DP 7060 C
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.
1.5.2 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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OPTIBAR DP 7060 C
1.5.3 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.
1.5.4 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.
SAFETY INSTRUCTIONS 1
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1 SAFETY INSTRUCTIONS
1.5.5 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.
OPTIBAR DP 7060 C
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.
1.6 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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OPTIBAR DP 7060 C
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 Device in the version as ordered
2 Mounting bracket
3 Documentation (test reports, factory and material certification (if ordered) and product documentation)
Optional accessories
• Oval flange adapter 1/2-14 NPT (female)
• Manifolds
• Gaskets
INFORMATION!
Assembly materials and tools are not part of the delivery. Use the assembly materials and tools
in compliance with the applicable occupational health and safety directives.
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2 DEVICE DESCRIPTION
2.2 Device description
The setup of the device is carried out via the display and adjustment unit. For further information
refer to
Keypad functions
A piezoresistive sensor element is used in the measuring cell.
The measuring device is supplied ready for operation. The factory settings for the process data
correspond to your order specifications.
2.2.1 Device design
The following drawings show the basic components of the differential pressure transmitter.
on page 41.
OPTIBAR DP 7060 C
Figure 2-2: Basic components of single chamber differential pressure transmitter
1 Housing cover, optional with display and adjustment module below
2 Housing with electronics
3 Process assembly with measuring cell
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OPTIBAR DP 7060 C
Figure 2-3: Basic components of double chamber differential pressure transmitter
1 Housing cover
2 Housing with electronics
3 Process assembly with measuring cell
4 Housing cover, optional with display and adjustment module below
5 Operating and display module
DEVICE DESCRIPTION 2
2.2.2 Connection variants
Figure 2-4: Process assembly
1 Rear vent on process axis
2 Side vent
Following connection variants are available:
• Process connection: 1/4-18 NPT acc. to IEC 61518 (female)
• Optional: oval flange adapter (1/4-18 NPT to 1/2-14 NPT)
The optional vent and drain valves on the device must be chosen according to the installation
situation.
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2 DEVICE DESCRIPTION
2.3 Nameplates
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
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.
OPTIBAR DP 7060 C
Figure 2-5: Example for a nameplate
1 Observe the installation and operating instructions
2 CE marking and marking of notified body
3 Hardware and Software version
4 Product name and type code
5 Nominal range
Permissible process pressure
Nominal range of absolute pressure measurement
6 Permissible temperature range
7 Electronics power supply and signal output
8 Ingress protection and material of wetted parts
(Diaphragm, process connections, gasket and fill fluid)
9 Approvals and approval guidelines
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OPTIBAR DP 7060 C
2.4 Terms and abbreviations
The following terms and abbreviations are used in this document.
URL
URL
URLURL
Upper Range Limit
LRL
LRL
LRLLRL
Lower Range Limit
URV
URV
URVURV
Upper Range Value
LRV
LRV
LRVLRV
Lower Range Value
SPAN
SPAN
SPANSPAN
Span
CAL SPAN
CAL SPAN
CAL SPANCAL SPAN
Calibrated Span
TD
TD
TDTD
Turn Down
DEVICE DESCRIPTION 2
Upper measuring range limit. Also called nominal range. The highest value
that can be measured by a particular device.
Lower measuring range limit. The lowest value that can be measured by a
particular device.
The calibrated measuring range or the highest adjusted measured value.
This value corresponds to 20 mA signal.
The calibrated measuring range or the lowest adjusted measured value.
This value corresponds to 4 mA signal.
Measuring span or measuring range. SPAN = URL – LRL
Calibrated or adjusted measuring span. CAL SPAN = URV – LRV. Also called
"cSPAN".
This is the span set to the 4…20 mA output.
The ratio from the measuring span to the adjusted measuring span.
TD= SPAN/(CAL SPAN) = (+URL)/(CAL SPAN)
The following applies: URV ≤ URL, CAL SPAN ≤ SPAN, TD ≥ 1
Example for TD
LRL
LRL= 0 bar
LRLLRL
URL
URL= 3 bar / 43.5 psi
URLURL
URV
URV= 2 bar / 29 psi
URVURV
LRV
LRV= 0.5 bar / 7.25 psi
LRVLRV
TD Turn Down
TDTD
SPAN
SPAN= 3 bar / 43.5 psi
SPANSPAN
CAL SPAN
CAL SPAN= 1.5 bar / 21.75 psi TD
CAL SPANCAL SPAN
TD= 2:1
TDTD
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3 INSTALLATION
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 Protection category of the housing
The housing of the differential pressure transmitter fulfills the requirements for ingress
protection in accordance with IEC 60529. Housing for protection category IP69K in accordance
with ISO 20653 is also available. For further information refer to
OPTIBAR DP 7060 C
Technical data
on page 63.
CAUTION!
The first digit stands for the protection of the inner electronic components against the ingress of
foreign bodies including dust. The first digit "6" means that the housing is dust-proof. The
second digit designates the protection of the inner electronic components against the ingress of
water. The second digit "6" means that the housing is waterproof and also resistant against a
strong jet of water resists. The number "7" means that the case is waterproof even under water
for a given pressure and time. The number "8" means that the housing is permanently
waterproof even under water.
3.3 Packaging
CAUTION!
Devices for oxygen applications are sealed in PE foil and provided with a label "Oxygen! Use no
Oil". Remove this foil just before mounting the device! After removing the protection for the
process connection the label OOOO
grease and dirt should be avoided. Danger of explosion!
Your device was protected by packaging during transport. Its capacity to handle normal loads
during transport is assured by a test following ISO 22248. The packaging of standard devices
consists of environmentally friendly, recyclable cardboard and PE foil. For special versions, PE
foam or PE foil is also used. Dispose of the packaging material via specialised recycling
companies.
will be visible on the process connection. Penetration of oil,
2222
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OPTIBAR DP 7060 C
3.4 Storage
CAUTION!
Observe the storage information found on the packaging. Labels on the original packaging must
always remain legible and may not be damaged.
• Store the device in a dry and dust-free location.
• Avoid lasting direct exposure to the sun.
• Store the device in the original packaging supplied.
• Do not expose to aggressive media.
• Avoid mechanical shocks.
• Storage temperature of -40 to +80°C / -40 to +176°F.
• Relative air humidity of 20 to 85%.
3.5 Transport
• Use original packaging for transport and ensure that the packaging does not get crushed or
damaged by sharp objects or other boxes.
• Do not throw or drop the device.
• Avoid temperatures below -40°C / -40°F and above +80°C / +176°F.
• When transporting by ship, use seaworthy outer packing.
INSTALLATION 3
3.6 Installation specifications
INFORMATION!
Observe the relevant directives, ordinances, standards and accident prevention regulations (e.g.
VDE/VDI 3512, DIN 19210, VBG, Elex V, etc.).
The accuracy of the measurement is only guaranteed if the transmitter and accompanying
impulse line(s), if any, have been correctly installed. In addition, extreme ambient conditions
including large fluctuations in temperature, vibrations and shocks should be kept as far away as
possible from the measuring equipment.
3.7 Mounting
CAUTION!
•
Prior to installing the pressure transmitter, it is essential to verify whether the version of the
device on hand completely fulfils the technical and safety requirements of the measuring
point. This applies in particular to the measuring range, overpressure resistance,
temperature, explosion protection and operating voltage.
•
Check the materials used for the wetted parts (e.g. gasket, process connection, separating
diaphragm etc.) for suitability as regards process compatibility.
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3 INSTALLATION
3.7.1 Rotating the housing
The transmitter housing can be rotated 350° for better readability of the display or access to the
wiring. A stop prevents the housing from being rotated too far.
• On all 2 chamber housings, the locking screw must first be loosened at the neck of the
housing.
i The housing can then be rotated to the desired position.
• Once the desired position is reached, the locking screw is tightened again.
3.7.2 Mounting the display and adjustment module
The optional display and adjustment module can be set in any one of four different positions at
90° intervals. The installation of the adjustment module is carried out as per the illustrations
below. To do so, unscrew the housing cover and insert the adjustment module clockwise. The
display can be installed rotated at 90°. It is not necessary to interrupt the power supply.
OPTIBAR DP 7060 C
Figure 3-1: Installation in single chamber housing
1 Insert the display and adjustment module into the housing
2 Turn the display and adjustment module clockwise
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OPTIBAR DP 7060 C
Figure 3-2: Installation in double chamber housing
1 Insert the display and adjustment module into the housing
2 Turn the display and adjustment module clockwise
3 Mounting on top
4 Mounting at side
INSTALLATION 3
3.7.3 Process connections
Before mounting of the device, please check the correct position of the high (H) and low (L)
pressure side. You can see the designations (H / L) underneath the measuring cell acc. to the
figure.
Figure 3-3: Process connection of the differential pressure transmitter
1 High-pressure side
2 Low-pressure side
The process connections of the differential pressure transmitter are usually 1/4-18 NPT (female)
at a distance of 54 mm / 2.13". Through optional oval flange adapters the connections 1/2-14
NPT (female) are also selectable.
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3 INSTALLATION
Figure 3-4: Oval flange adapter
1 7/16 UNF bolts
2 Oval flange adapter
3 Sealing ring
If the adapter is not supplied pre-assembled, proceed as follows:
• Position the adapter with inserted O-ring.
• Use the screws supplied to screw the adapter to the transmitter.
• Tighten the screws to a torque of 25 Nm (stainless steel screws) or 12.5 Nm (stainless steel
acc. to NACE).
OPTIBAR DP 7060 C
3.7.4 Mounting bracket
A mounting bracket for easy pipe or wall mounting is included with each differential pressure
transmitter.
Figure 3-5: Mounting bracket
1 Horizontal 2" pipe mounting
2 Vertical 2" pipe mounting
3 Wall mounting
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OPTIBAR DP 7060 C
3.7.5 Manifolds
Manifolds allow for easy installation and commissioning of the transmitter. They separate the
device from the process side and ensure simple control of the measuring point. They are
available as 3-way and 5-way versions. The integrated outlet valve allows pressure equalization
between the high (H) and low (L) pressure side during commissioning. With the manifold, it is
possible to disassemble the differential pressure transmitter without interrupting the process.
This means higher system availability and even simpler commissioning or maintenance
purposes. The 3-way manifold with double-sided flange adapters allows a mechanically robust
connection between the differential pressure transmitter and, for example, the impulse lines or
the flange adapters of a averaging pitot tube. With a 5-way manifold, two additional valves allow
to blow out of the impulse lines and the calibration of the differential pressure transmitter in
place.
3.7.6 Primary element
Primary elements, such as averaging pitot tubes, orifice plates or venturis are designed for
certain line sizes and flow conditions. Therefore, prior to installation, the line size and pressure
rating has to be checked and the measuring point number compared. For detailed instructions
on installing a primary element refer to DIN EN ISO 5167.
INSTALLATION 3
3.7.7 Pressure connection with impulse line
Please review the following information for pressure connection with impulse line:
• Select the shortest impulse line possible and install without sharp bends.
• Avoid material deposits and blockages in the impulse line. Accordingly, install the impulse
lines so that such occurrences are impossible. Do not exceed a slope of approx. 8% in the
piping.
• Ensure that the impulse line flows freely before installation and rinse with compressed air or,
even better, with the product itself.
• When measuring liquid, the impulse line must be completely purged of air.
• Run the impulse line so that trapped air (when measuring liquids) or condensate (when
measuring gas) can flow back into the process.
• Hot steam must not enter the process connection (the over temperature will destroy the
device). To avoid this situation, a suitable water trap (such as a syphon filled with water prior
to installation) can be installed upstream from the measuring device.
• All connections must be tight and fixed properly.
• The process lines must be installed so that the medium cannot be blown out of the measuring
chambers.
3.7.8 Vibrations
In case of strong vibrations at the measuring point, the device should be mounted via impulse
lines in a calm place.
3.7.9 Temperature limits
Higher process temperatures often mean also higher ambient temperatures for electronics and
connection cables. Make sure that the upper temperature limits for the environment of the
electronics housing and connection cable are not exceeded. For further information refer to
Technical data
on page 63.
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3 INSTALLATION
3.8 Instructions for oxygen applications
Oxygen and other gases can be explosive when brought into contact with oils, grease and
plastics, so the following measures must also be taken:
• All components of the plant, such as e.g. measuring devices must be cleaned according to the
requirements of BAM (DIN 19247).
• Depending on the seal material, certain temperatures and pressures must not be exceeded
in oxygen applications, refer to
CAUTION!
Devices for oxygen applications are sealed in PE foil and provided with a label "Oxygen! Use no
Oil". Remove this foil just before mounting the device! After removing the protection for the
process connection the label OOOO
grease and dirt should be avoided. Danger of explosion!
Technical data
will be visible on the process connection. Penetration of oil,
2222
OPTIBAR DP 7060 C
on page 63.
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OPTIBAR DP 7060 C
3.9 Venting
The ventilation for the electronics housing is assured via a filter element in the vicinity of the
cable glands, which is permeable to air but water-absorbent.
CAUTION!
In order to ensure effective ventilation, the filter element must be always free of deposits.
CAUTION!
Do not use a high-pressure cleaner to clean the housing. The filter element may become
damaged and as a result moisture can penetrate into the housing. The exception to this is the
IP69K single chamber housing.
INSTALLATION 3
1 Single chamber housing, plastic, stainless steel precision casting
2 Single chamber housing, aluminium
3 Single chamber housing, electro-polished stainless steel
4 Double chamber housing, plastic
5 Double chamber housing, aluminium
6 Single chamber housing IP69k
7 Filter element
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3 INSTALLATION
3.10 Measurement setup for flow measurement
3.10.1 In gases and liquids with solids content
• Include the pressure tapping points above or to the side on the process line.
• The device must be mounted above the chosen tapping point.
OPTIBAR DP 7060 C
Figure 3-6: Application example
1 Shut-off valve
2 Equalizing valve
3 Shut-off valve
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OPTIBAR DP 7060 C
3.10.2 In vapours and pure liquids
• Include the pressure tapping points to the side on the process line.
• The device must be mounted at the same height or underneath the tapping points.
• In steam applications, fill the impulse lines and/or condensate vessels with an appropriate
liquid.
INSTALLATION 3
Figure 3-7: Application example
1 Shut-off valve
2 Equalizing valve
3 Shut-off valve
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25
3 INSTALLATION
3.11 Measurement setup for level measurement
3.11.1 In open vessels with impulse line
OPTIBAR DP 7060 C
Figure 3-8: Application example
1 Tank
2 Impulse line
3 Differential pressure transmitter
The following points should be observed in this application:
• Mount the differential pressure transmitter below the lower process connection so that the
impulse lines are always filled with liquid.
• The low pressure side (L) is open to atmospheric pressure.
• For measurements in products with solid content, the installation of separators and drain
valves is recommended to enable collection and removal of debris and sediment.
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