KROHNE FMCW24G74L, FMCW24G74T Users Manual

Handbook

OPTIWAVE 7400-24 C

OPTIWAVE 7400-24 COPTIWAVE 7400-24 C

Radar (FMCW) Level Transmitter for agitated liquids in high-precision applications

HandbookHandbook

IMPRINT

:::::::::::::::::::::::::::::::::::::::

Subject to change without notice.

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OPTIWAVE 7400-24 C

CONTENTS

1 Safety instructions 7

1.1 Software history ............................................................................................................... 7

1.2 Intended use ..................................................................................................................... 7

1.3 Certification ...................................................................................................................... 8

1.4 Electromagnetic compatibility ......................................................................................... 8

1.5 Radio approvals ................................................................................................................ 9

1.5.1 European Union (EU)............................................................................................................... 9

1.5.2 U.S.A. and Canada................................................................................................................. 12

1.6 Safety instructions from the manufacturer................................................................... 15

1.6.1 Copyright and data protection .............................................................................................. 15

1.6.2 Disclaimer ............................................................................................................................. 15

1.6.3 Product liability and warranty .............................................................................................. 16

1.6.4 Information concerning the documentation......................................................................... 16

1.6.5 Warnings and symbols used................................................................................................. 17

1.7 Safety instructions for the operator............................................................................... 17

2 Device description 18

2.1 Scope of delivery............................................................................................................. 18

2.2 Device description .......................................................................................................... 19

2.3 Visual Check ................................................................................................................... 20

2.4 Nameplates .................................................................................................................... 21

2.4.1 Nameplate (examples).......................................................................................................... 21

3 Installation 23

3.1 General notes on installation ......................................................................................... 23

3.2 Storage ........................................................................................................................... 23

3.3 Transport ........................................................................................................................ 24

3.4 Pre-installation requirements ....................................................................................... 24

3.5 Pressure and temperature ranges ................................................................................ 25

3.6 Recommended mounting position ................................................................................. 26

3.6.1 General data.......................................................................................................................... 26

3.6.2 Tanks with conical bottoms .................................................................................................. 27

3.7 Mounting restrictions ..................................................................................................... 28

3.7.1 General data.......................................................................................................................... 28

3.7.2 Obstacles in the tank ............................................................................................................ 28

3.7.3 Devices with Metallic Horn antenna..................................................................................... 29

3.7.4 Process connections............................................................................................................. 30

3.7.5 Standpipes (stilling wells and bypass chambers) ................................................................ 31

3.8 How to attach antenna extensions ................................................................................. 35

3.9 How to turn or remove the signal converter.................................................................. 36

3.10 How to assemble the remote version .......................................................................... 37

3.11 Weather protection....................................................................................................... 39

3.11.1 How to attach the weather protection to the device........................................................... 39

3.11.2 How to open the weather protection .................................................................................. 40

4 Electrical connections 41

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CONTENTS

OPTIWAVE 7400-24 C

4.1 Safety instructions.......................................................................................................... 41

4.2 Electrical installation: 2-wire, loop-powered ................................................................ 41

4.2.1 Compact version ................................................................................................................... 41

4.2.2 Remote version ..................................................................................................................... 42

4.3 Remote device data ........................................................................................................ 43

4.3.1 Requirements for signal cables supplied by the customer ................................................. 43

4.3.2 How to prepare a signal cable supplied by the customer.................................................... 44

4.3.3 How to connect the signal cable to the device ..................................................................... 45

4.4 Electrical connection for current output ....................................................................... 48

4.4.1 Non-Ex devices ..................................................................................................................... 48

4.4.2 Devices for hazardous locations........................................................................................... 48

4.5 Protection category ........................................................................................................48

4.6 Networks ........................................................................................................................ 49

4.6.1 General information.............................................................................................................. 49

4.6.2 Point-to-point connection..................................................................................................... 49

4.6.3 Multi-drop networks ............................................................................................................. 50

4.6.4 Fieldbus networks................................................................................................................. 50

5 Start-up 52

5.1 How to start the device................................................................................................... 52

5.1.1 Start-up checklist ................................................................................................................. 52

5.1.2 How to start the device ......................................................................................................... 52

5.2 Operating concept ..........................................................................................................52

5.3 Digital display screen .....................................................................................................53

5.3.1 Local display screen layout .................................................................................................. 53

5.3.2 Functions of keypad buttons................................................................................................. 54

5.4 Remote communication with PACTware™ .................................................................... 54

5.5 Remote communication with the AMS™ Device Manager............................................. 55

6 Operation 56

6.1 User modes .................................................................................................................... 56

6.2 Normal mode.................................................................................................................. 57

6.3 Configuration mode........................................................................................................ 58

6.3.1 General notes........................................................................................................................ 58

6.3.2 How to get access to the commissioning menu................................................................... 58

6.3.3 Keypad functions................................................................................................................... 59

6.3.4 Menu overview ...................................................................................................................... 62

6.3.5 Function description ............................................................................................................. 63

6.4 Further information on device configuration................................................................. 70

6.4.1 Quick Setup (Commissioning)............................................................................................... 70

6.4.2 Test........................................................................................................................................ 72

6.4.3 Protection of the device settings .......................................................................................... 73

6.4.4 HART

6.4.5 Distance measurement ........................................................................................................ 74

6.4.6 Level measurement .............................................................................................................. 75

6.4.7 How to configure the device to measure volume or mass................................................... 76

6.4.8 How to make a filter to remove radar signal interference .................................................. 77

6.4.9 How to measure correctly in tanks with curved or conical bottoms ................................... 78

6.5 Status and error messages............................................................................................ 79

6.5.1 Device status (markers)........................................................................................................ 79

network configuration.............................................................................................. 73

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6.5.2 Error handling....................................................................................................................... 80

CONTENTS

7 Service 84

7.1 Periodic maintenance..................................................................................................... 84

7.2 How to clean the top surface of the device .................................................................... 84

7.3 How to clean horn antennas under process conditions ................................................ 84

7.4 How to replace device components ............................................................................... 84

7.4.1 Service warranty ................................................................................................................... 84

7.4.2 Replacement of the OPTIWAVE 7300 signal converter with the OPTIWAVE 7400 signal con-

verter............................................................................................................................................... 85

7.5 Spare parts availability...................................................................................................87

7.6 Availability of services .................................................................................................... 87

7.7 Returning the device to the manufacturer..................................................................... 88

7.7.1 General information.............................................................................................................. 88

7.7.2 Form (for copying) to accompany a returned device............................................................ 89

7.8 Disposal .......................................................................................................................... 89

8 Technical data 90

8.1 Measuring principle........................................................................................................90

8.2 Technical data................................................................................................................. 91

8.3 Minimum power supply voltage ..................................................................................... 99

8.4 Antenna selection......................................................................................................... 100

8.5 Guidelines for maximum operating pressure.............................................................. 101

8.6 Dimensions and weights .............................................................................................. 103

9 Description of HART interface 115

9.1 General description ...................................................................................................... 115

9.2 Software history ...........................................................................................................115

9.3 Connection variants...................................................................................................... 116

9.3.1 Point-to-Point connection - analogue / digital mode......................................................... 116

9.3.2 Multi-Drop connection (2-wire connection) ....................................................................... 116

9.4 HART® device variables............................................................................................... 116

9.5 Field Communicator 475 (FC 475)................................................................................ 116

9.5.1 Installation .......................................................................................................................... 116

9.5.2 Operation............................................................................................................................. 117

9.6 Asset Management Solutions (AMS)............................................................................ 117

9.6.1 Installation .......................................................................................................................... 117

9.6.2 Operation............................................................................................................................. 117

9.6.3 Parameter for the basic configuration ............................................................................... 117

9.7 Field Device Tool / Device Type Manager (FDT / DTM)................................................ 118

9.7.1 Installation .......................................................................................................................... 118

9.7.2 Operation............................................................................................................................. 118

9.8 HART® menu tree for Basic-DD .................................................................................. 118

9.8.1 Overview Basic-DD menu tree (positions in menu tree).................................................... 118

9.8.2 Basic-DD menu tree (details for settings).......................................................................... 118

9.9 HART® menu tree for AMS .......................................................................................... 119

9.9.1 Overview AMS menu tree (positions in menu tree)............................................................ 120

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CONTENTS

9.9.2 AMS menu tree (details for settings).................................................................................. 120

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10 Appendix 122

10.1 Order code .................................................................................................................. 122

10.2 Spare parts ................................................................................................................. 130

10.3 Accessories................................................................................................................. 134

10.4 Glossary ...................................................................................................................... 135

11 Notes 138

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1.1 Software history

"Firmware revision" agrees with NAMUR NE 53. It is a series of numbers used to record the revision status of embedded software (firmware) in electronic equipment assemblies. It gives data on the type of changes made and the effect that changes have on compatibility.

SAFETY INSTRUCTIONS

Data about software revisions is shown in menu 1.1.0 IDENT. For more data, refer to

description

of the device (given on the device nameplate) and speak to the supplier.

Release date Printed circuit

YYYY-MM-DD Converter 1.00.0x 400xxxxx01 - HB OPTIWAVE

on page 63. If it is not possible to refer to the device menu, record the serial number

Firmware

assembly

Sensor 1.00.0x 400xxxxx01

HMI (LCD display option)

revision

1.00.0x 400xxxxx01

Hardware revision

Changes and compatibility

Documentation

7400-24 R01

Function

1.2 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!

The manufacturer is not liable for any damage resulting from improper use or use for other than the intended purpose.

This radar level transmitter measures distance, level, mass, volume and reflectivity of liquids, pastes and slurries.

It can be installed on tanks, reactors and open channels.

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SAFETY INSTRUCTIONS

1.3 Certification

DANGER!

For devices used in hazardous areas, additional safety notes apply; please refer to the Ex documentation.

INFORMATION!

For SIL-approved devices; please refer to the safety manual.

In accordance with statutory requirements of the EC directives, the device described in this document meets the following safety requirements:

• Electromagnetic Compatibility Directive

• The safety part of the Low-Voltage Directive

OPTIWAVE 7400-24 C

For more data, refer to the CE Declaration of Conformity for this device.

All devices meet the requirements of NAMUR Guidelines NE 21, NE 43, NE 53 and NE 107.

1.4 Electromagnetic compatibility

The device agrees with Electromagnetic Compatibility Directive.

You can install the device on tanks, open vessels or channels, but the type of antenna must agree with the location of the device. For more data, refer to with Immunity and Emissions requirements for industrial environments.

Radio approvals

on page 9. This agrees

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1.5 Radio approvals

1.5.1 European Union (EU)

INFORMATION!

LPR (Level Probing Radar)

LPR (Level Probing Radar) equipment are devices for the measurement of level in the open air

LPR (Level Probing Radar)LPR (Level Probing Radar) or in a closed space (a metallic tank etc.). TLPR (Tank Llevel Probing Radar) devices for the measurement of level in a closed space only. You can use LPR devices for TLPR applications. The LPR and TLPR devices meet the requirements of the R&TTE (Radio Equipment and Telecommunications Terminal Equipment) Directive for use in the member countries of the EU.

SAFETY INSTRUCTIONS

TLPR (Tank Llevel Probing Radar) equipment are

TLPR (Tank Llevel Probing Radar)TLPR (Tank Llevel Probing Radar)

For more data about the order code, refer to Order code on page 122

This level transmitter is approved to be used outside metallic tanks. If you use the device outdoors, read the device nameplate to make sure that the device can be used for your application. Only the antennas that follow are permitted for open-air applications:

• VF744xxxx5xxx...

• VF744xxxx6xxx...

• VF744xxxx7xxx...

Figure 1-1: Radio approval information on the nameplate

1 Type code (defined in order) 2 HVIN (Hardware Version Identification Number). This number gives the radar signal frequency (24G = 24 GHz), the lo-

cation of the device (TLPR or LPR) and the type of signal converter (compact (C)) TLPR device: HVIN: 244G-TLPR-C LPR device: HVIN: 24G-LPR-C

3 CE sign

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SAFETY INSTRUCTIONS

TLPR (Tank Level Probing Radar) devices only

Use approved personnel to install the device. The device and the tank agree with the R&TTE directive if you obey the instructions that follow:

• TLPR (Tank Level Probing Radar) are required to be installed at a permanent fixed position at a closed (not open) metallic tank or reinforced concrete tank, or similar enclosure structure made of comparable attenuating material;

• flanges and attachments of the TLPR equipment shall provide the necessary microwave sealing by design;

• sight glasses shall be coated with a microwave-proof coating when necessary (i.e. electrically conductive coating);

• manholes or connection flanges at the tank shall be closed to ensure a low-level leakage of the signal into the air outside the tank;

• whenever possible, mounting of the TLPR equipment shall be on top of the tank structure with the orientation of the antenna to point in a downward direction;

• installation and maintenance of the TLPR equipment shall be performed by professionally trained individuals only.

OPTIWAVE 7400-24 C

For data about how to install EMI/RFI shielding gaskets, refer to the instructions supplied with this accessory.

LPR (Level Probing Radar) devices only

Use approved personnel to install the device. If the device is operated in the open air (outdoors), it agrees with the R&TTE directive if you obey these instructions:

• The antenna must always point downwards. The boresight direction of the antenna must be

vertical. No other angles are permitted.

• Install the device more than 4 km / 2.485 mi away from radio astronomy sites.

• If the device is 4...40 km / 2.485...24.855 mi away from radio astronomy sites, do not install the

device more than 15 m / 49.21 ft above the ground.

CAUTION!

If it is necessary to install the device less than 4 km / 2.485 mi from radio astronomy sites, you must get the approval of the national regulatory authority before installation (e.g. ANFR (France), Bundesnetzagentur (Germany), Ofcom (United Kingdom) etc.).

Radio quiet zones: locations of radio astronomy sites (stations) in Europe and northern Eurasia

Country Name of the station Location

Latitude, ϕ Longitude, λ

Finland Metsähovi 60°13'04" N 24°23'37" E

Tuorla 60°24'56" N 22°26'31" E

France Plateau de Bure 44°38'01" N 05°54'26" E

Floirac 44°50'10" N 00°31'37" W

Germany Effelsberg 50°31'32" N 06°53'00" E

Hungary Penc 47°47'22" N 19°16'53" E

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SAFETY INSTRUCTIONS

Country Name of the station Location

Latitude, ϕ Longitude, λ

Italy Medicina 44°31'14" N 11°38'49" E

Noto 36°52'34" N 14°59'21" E

Sardinia 39°29'50" N 09°14'40" E

Latvia Ventspils 57°33'12" N 21°51'17" E

Poland Kraków – Fort Skala 50°03'18" N 19°49'36" E

Torun – Piwnice 52°54'48" N 18°33'30" E

Russia Dmitrov 56°26'00" N 37°27'00" E

Kalyazin 57°13'22" N 37°54'01" E

Pushchino 54°49'00" N 37°40'00" E

Zelenchukskaya 43°49'53" N 41°35'32" E

Spain Yebes 40°31'27" N 03°05'22" W

Robledo 40°25'38" N 04°14'57" W

Switzerland Bleien 47°20’26" N 08°06’44" E

Sweden Onsala 57°23’45" N 11°55’35" E

UK Cambridge 52°09'59" N 00°02'20" E

Darnhall 53°09'22" N 02°32'03" W

Jodrell Bank 53°14'10" N 02°18'26" W

Knockin 52°47'24" N 02°59'45" W

Pickmere 53°17'18" N 02°26'38" W

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SAFETY INSTRUCTIONS

1.5.2 U.S.A. and Canada

INFORMATION!

LPR (Level Probing Radar)

LPR (Level Probing Radar) equipment are devices for the measurement of level in the open air

LPR (Level Probing Radar)LPR (Level Probing Radar) or in a closed space (a metallic tank etc.). TLPR (Tank Llevel Probing Radar) devices for the measurement of level in a closed space only.

OPTIWAVE 7400-24 C

TLPR (Tank Llevel Probing Radar) equipment are

TLPR (Tank Llevel Probing Radar)TLPR (Tank Llevel Probing Radar)

For more data about the order code, refer to Order code on page 122

This level transmitter is approved to be used outside metallic tanks. If you use the device in the open air, read the device nameplate to make sure that the device can be used for your application:

LEGAL NOTICE!

FCC

FCCFCC This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference which may cause un-

desired operation.

Changes or modifications made to this equipment not expressly approved by the manufacturer may void the FCC authorizations to operate this equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

•

Reorient or relocate the receiving antenna.

•

Increase the separation between the equipment and receiver.

•

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•

Consult the dealer or an experienced radio/TV technician for help.

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LEGAL NOTICE!

ICIC This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following conditions:

1. this device may not cause harmful interference, and

2. this device must accept any interference received, including interference that may cause un-

desired operation.

This device and the handbook complies with the requirements of RSS-Gen. Operation is subject to the conditions that follow:

1. The installation of the LPR/TLPR device shall be done by trained installers, in strict compliance

with the manufacturer

2. The use of this device is on a "no-interference, no-protection" basis. That is, the user shall ac-

cept operations of high-powered radar in the same frequency band which may interfere with or damage this device. However, devices found to interfere with primary licensing operations will be required to be removed at the user

3. The TLPR device shall be installed and operated in a completely enclosed container to prevent

RF emissions, which can otherwise interfere with aeronautical navigation.

4. LPR devices: Ensure a vertically downward orientation of the transmit antenna and a installa-

tion only at fixed locations.

5. The installer / user of this device shall ensure that it is at least 10 km from the Dominion Radio

Astrophysical Observatory (DRAO) near Penticton, British Columbia. The coordinates of the DRAO are latitude 49 separation (e.g. those in the Okanagan Valley, British Columbia) the installer / user must coordinate with, and obtain the written concurrence of, the Director of the DRAO before the equipment can be installed or operated. The Director of the DRAO may be contacted at 250-497-2300 (tel.) or 250-497-2355 (fax). Alternatively, the Manager, Regulatory Standards, Industry Canada, may be contacted.

SAFETY INSTRUCTIONS

’

s instructions.

’

s expense.

19'15" N and longitude 119°37'12" W. For devices not meeting this 10 km

The Product Marketing Name (PMN) of this device is "Optiwave x400-24 series".

This level transmitter is approved to be used outside metallic tanks. If you use the device in the open air, read the device nameplate to make sure that the device can be used for your application. Only the antennas that follow are permitted for open-air applications:

• VF744xxxx4xxx...

• VF744xxxx5xxx...

• VF744xxxx6xxx...

• VF744xxxx7xxx...

• VF744xxxxAxxx...

• VF744xxxxBxxx...

• VF744xxxxCxxx...

• VF744xxxxDxxx...

• VF744xxxxExxx...

• VF744xxxxGxxx...

• VF744xxxxHxxx...

• VF744xxxxKxxx...

• VF744xxxxPxxx...

• VF744xxxxRxxx...

• VF744xxxxSxxx...

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SAFETY INSTRUCTIONS

• VF744xxxxTxxx...

• VF744xxxxUxxx...

OPTIWAVE 7400-24 C

Figure 1-2: FCC ID and IC number

1 Type code (defined in order) 2 HVIN (Hardware Version Identification Number). This number gives the radar signal frequency (24G = 24 GHz), the lo-

cation of the device (TLPR or LPR) and the type of signal converter (compact (C)) TLPR device: HVIN: 24G-TLPR-C LPR device: HVIN: 24G-LPR-C

3 FCC ID and IC number

TLPR device: FCC-ID:Q6BFMCW24G74T, IC number: 1991D-FMCW24G74T LPR device: FCC-ID: Q6BFMCW24G74L, IC number:1991D-FMCW24G74L

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1.6 Safety instructions from the manufacturer

1.6.1 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.

SAFETY INSTRUCTIONS

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.

1.6.2 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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SAFETY INSTRUCTIONS

1.6.3 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.

1.6.4 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.

OPTIWAVE 7400-24 C

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1.6.5 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.

SAFETY INSTRUCTIONS

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.

1.7 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

2.1 Scope of delivery

INFORMATION!

Do a check of the packing list to make sure that you have all the elements given in the order.

Scope of delivery – horn antenna

OPTIWAVE 7400-24 C

Figure 2-1: Scope of delivery – horn antenna

1 Signal converter and antenna in compact version 2 Antenna extensions (option) 3 Quick Start 4 DVD-ROM (including Handbook, Quick Start, Technical Datasheet and related software)

Scope of delivery – Drop antenna

Figure 2-2: Scope of delivery – Drop antenna

1 Signal converter and antenna in compact version 2 Antenna extensions (option) and O-ring for each antenna extension 3 Quick Start 4 DVD-ROM (including Handbook, Quick Start, Technical Datasheet, and related software)

INFORMATION!

No special tools or training required!

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OPTIWAVE 7400-24 C

2.2 Device description

This device is a 24 GHz FMCW-radar level transmitter. It is a non-contact technology and is 2wire loop-powered. It is designed to measure the distance, level, mass, volume and reflectivity of liquids, pastes and slurries.

Radar level transmitters use an antenna to emit a signal to the surface of the measured product. The device has many antennas available. Thus, it can measure most products even in difficult conditions. Also refer to

If it is ordered with the applicable options, it can be certified for use in hazardous areas.

These output options are available:

• 1 output: 4...20 mA (HART)

• 2-wire FOUNDATION™ Fieldbus output

• 2-wire PROFIBUS PA output

These accessories are available:

• Stainless steel weather protection.

• RS232 / HART

• USB / HART

converter.

Technical data

converter (VIATOR).

on page 90.

DEVICE DESCRIPTION

INFORMATION!

For more data on accessories, refer to Accessories on page 134

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DEVICE DESCRIPTION

2.3 Visual Check

WARNING!

If the display screen glass is broken, do not touch.

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.

OPTIWAVE 7400-24 C

Figure 2-3: Visual check

1 Device nameplate (for more data refer to 2 Process connection data (size and pressure rating, material reference and heat number) 3 Gasket material data – refer to the illustration that follows

If the device is supplied with an FKM/FPM gasket, there is no symbol on the side of the process connection.

Nameplate (examples)

on page 21)

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.

INFORMATION!

Compare the material references on the side of the process connection with the order.

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OPTIWAVE 7400-24 C

2.4 Nameplates

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.

2.4.1 Nameplate (examples)

DEVICE DESCRIPTION

Figure 2-4: Compact (C) and remote (F) versions: Non-Ex nameplate attached to the housing

1 Cable entry size 2 Input / output option 3 Degree of ingress protection (according to EN 60529 / IEC 60529) 4 Customer tag number 5 Date of manufacture 6 Order number 7 Type code (defined in order) 8 Model name and number. The last letter "X" is either:

C = compact version or F = remote (field) version

9 Company name and address

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DEVICE DESCRIPTION

Figure 2-5: Remote (F) version: Non-Ex nameplate attached to the antenna assembly

1 Cable entry size 2 Degree of ingress protection (according to EN 60529 / IEC 60529) 3 Date of manufacture 4 Order number 5 Type code (defined in order) 6 Model name and number 7 Company name and address

OPTIWAVE 7400-24 C

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OPTIWAVE 7400-24 C

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

WARNING!

Do not keep the device in a vertical position. This will damage the antenna and the device will not measure correctly.

INSTALLATION

Figure 3-1: Storage conditions

1 When you put the device into storage, do not keep it in a vertical position 2 Put the device on its side. We recommend that you use the packaging in which it was delivered. 3 Storage temperature range: -40...+85°C / -40...+185°F

• Store the device in a dry and dust-free location.

• Keep the converter out of the sunlight.

• Store the device in its original packing.

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INSTALLATION

3.3 Transport

Figure 3-2: How to lift the device

1 Remove the converter before you lift the device with a hoist.

WARNING!

Lift the device carefully to prevent damage to the antenna.

OPTIWAVE 7400-24 C

3.4 Pre-installation requirements

INFORMATION!

Obey the precautions that follow to make sure that the device is correctly installed.

• Make sure that there is sufficient space on all sides.

• Protect the signal converter from direct sunlight.

• Do not subject the signal converter to heavy vibrations.

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OPTIWAVE 7400-24 C

3.5 Pressure and temperature ranges

Figure 3-3: Pressure and temperature ranges

1 Flange temperature

FKM/FPM gasket: -40...+200°C / -40...+390°F; Kalrez EPDM gasket: -50...+150°C / -58...+300°F Ex devices: see supplementary operating instructions

2 Ambient temperature for operation of the display

-20...+60°C / -4...+140°F If the ambient temperature is not between these limits, the display screen switches off automatically

3 Ambient temperature

Non-Ex devices: -40...+80°C / -40...+175°F Ex devices: see supplementary operating instructions

INSTALLATION

6375 gasket: -20...+200°C / -4...+390°F;

WARNING!

The process connection temperature range must agree with the temperature limits of the gasket material. The operating pressure range is subject to the process connection used and the flange temperature.

Antenna type Maximum process connection

Maximum operating pressure

temperature

[°C] [°F] barg psig

PP Drop +100 +210 16 232

PTFE Drop +150 +300 40 580

PEEK Drop +xxx +xxx xx xxx

Hygienic +150 +300 10 145

Horn / Sheet metal horn +200

1 The maximum process connection temperature must agree with the temperature limits of the gasket material. If the

distance piece option is not attached, the maximum process connection temperature is +150°C / +300°F.

2 Standard operating pressure: 40 barg / 580 psig. Optional max. operating pressure: 100 barg / 1450 psig.

+300

40 (100)

580 (1450)

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INSTALLATION

3.6 Recommended mounting position

CAUTION!

Follow these recommendations to make sure that the device measures correctly. They have an effect on the performance of the device.

We recommend that you prepare the installation when the tank is empty.

3.6.1 General data

INFORMATION!

If possible, do not install a nozzle on the tank centerline.

OPTIWAVE 7400-24 C

Figure 3-4: Recommended nozzle position for liquids, pastes and slurries

1 Nozzles for DN40 or DN50 Horn antennas, or DN50 Hygienic antenna 2 Nozzles for DN80, DN100, DN150 or DN200 Horn antennas and DN80 or DN150 Drop antennas 3 Tank height 4 Tank diameter 5 Minimum distance of nozzle from the tank wall : 1/7 × tank height

Maximum distance of nozzle from the tank wall : 1/3 × tank diameter

6 Minimum distance of nozzle from the tank wall : 1/10 × tank height

Maximum distance of nozzle from the tank wall : 1/3 × tank diameter

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OPTIWAVE 7400-24 C

Figure 3-5: More than 1 FMCW radar level meter can be operated in a tank

3.6.2 Tanks with conical bottoms

INSTALLATION

Figure 3-6: Tanks with conical bottoms

Conical bottoms have an effect on the measuring range. The device cannot measure to the bottom of the tank.

1 Axis of radar beam 2 Minimum level reading

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INSTALLATION

3.7 Mounting restrictions

CAUTION!

Follow these recommendations to make sure that the device measures correctly. They have an effect on the performance of the device.

We recommend that you prepare the installation when the tank is empty.

3.7.1 General data

OPTIWAVE 7400-24 C

Figure 3-7: General Installation recommendations

1 Do not tilt the device more than 2° 2 We recommend that you do an empty spectrum recording if there are too many obstacles in the radar beam (for more

data, refer to ber or stilling well or use an "L" antenna extension (the device must be installed on the side of the tank) to move the device away from obstacles.

3 2.5 mm / 0.1¨ max. for high-dielectric constant liquids 4 Curved and conical tank bottoms. For fine adjustment of the device, refer to

curved or conical bottoms

5 Beam radius (DN40 horn antenna): increments of 180 mm/m or 2.15¨/ft (10°)

Beam radius (DN50 horn antenna or DN50 Hygienic antenna): increments of 130 mm/m or 1.55¨/ft (7.5°) Beam radius (DN80 horn antenna): increments of 90 mm/m or 1.1¨/ft (5°) Beam radius (DN100 horn antenna or DN80 Drop antenna): increments of 70 mm/m or 0.83¨/ft (4°) Beam radius (DN150 horn antenna): increments of 52.5 mm/m or 0.63¨/ft (3°) Beam radius (DN150 Drop antenna or DN200 horn antenna): increments of 35 mm/m or 0.42¨/ft (2°)

How to make a filter to remove radar signal interference

3.7.2 Obstacles in the tank

Obstacles in the tank can cause parasitic signals. They have an effect on the performance of the device.

CAUTION!

If there are parasitic signals, the device will not measure correctly. Parasitic signals are caused by:

•

Objects in the tank.

•

Sharp corners that are perpendicular to the path of the radar beam.

on page 77). If necessary, install a bypass cham-

How to measure correctly in tanks with

on page 78.

Do an Empty Spectrum recording (refer to Operation

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Operation) to remove parasitic signals with a filter.

OperationOperation

OPTIWAVE 7400-24 C

Figure 3-8: Obstacles in the tank

Do not put the device directly above obstacles (agitator, support beams, heating tubes etc.). Parasitic signals from obstacles will cause the device to measure incorrectly.

1 Solution 1: Put the device on another process connection away from obstacles 2 Solution 2: Attach the device to the side of the tank and use an "L" (right angle) extension

INSTALLATION

CAUTION!

Do not put the device near to the product inlet. If the product that enters the tank touches the antenna, the device will measure incorrectly. If the product fills the tank directly below the antenna, the device will also measure incorrectly.

Figure 3-9: Product inlets

1 The device is in the correct position. 2 The device is too near to the product inlet.

3.7.3 Devices with Metallic Horn antenna

The antenna must project out of the nozzle. If necessary, use an antenna extension. But if the tank roof is flat and the tank fitting is symmetrical, it is not necessary for the antenna to project out of the nozzle. Thus, the device can have a larger measuring range.

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INSTALLATION

3.7.4 Process connections

Requirements for flange connections

Figure 3-10: Flange connection

OPTIWAVE 7400-24 C

Equipment needed:

• Device

• Flange gasket (not supplied)

• Wrench (not supplied)

• Make sure the flange on the nozzle is level.

• Make sure that you use the applicable gasket for the flange dimensions and the process.

• Align the gasket correctly on the flange facing of the nozzle.

• Lower the antenna carefully into the tank.

• Make sure that you point the device in the correct direction. Refer to "Point the device in the

correct direction" in this section.

• Tighten the flange bolts.

i Refer to local rules and regulations for the correct torque to apply to the bolts.

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