KROHNE FMCW24G74L, FMCW24G74T Users Manual

Download

Page 1

Handbook

OPTIWAVE 7400-24 C

OPTIWAVE 7400-24 COPTIWAVE 7400-24 C

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

HandbookHandbook

Page 2

IMPRINT

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

Subject to change without notice.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 3

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 4

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 5

OPTIWAVE 7400-24 C

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 6

CONTENTS

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

OPTIWAVE 7400-24 C

10 Appendix 122

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

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

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

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

11 Notes 138

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 7

OPTIWAVE 7400-24 C

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.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 8

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 9

OPTIWAVE 7400-24 C

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 10

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 11

OPTIWAVE 7400-24 C

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 12

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.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 13

OPTIWAVE 7400-24 C

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...

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 14

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 15

OPTIWAVE 7400-24 C

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.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 16

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 17

OPTIWAVE 7400-24 C

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.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 18

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!

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 19

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 20

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.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 21

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 22

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 23

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.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 24

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.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 25

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)

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 26

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 27

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

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 28

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

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Operation) to remove parasitic signals with a filter.

OperationOperation

Page 29

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.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 30

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.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 31

OPTIWAVE 7400-24 C

Requirements for threaded connections

Figure 3-11: Threaded connection

Equipment needed:

• Device

• Gasket for G 1½ connection (not supplied)

• Thread seal tape (PTFE) for 1½ NPT connection (not supplied)

• 50 mm / 2¨ wrench (not supplied)

INSTALLATION

WARNING!

Do not tighten the connection to a torque more than 40 Nm. If the connection is too tight, this will damage the thread. To prevent damage to the antenna, make sure that the minimum diameter of the hole for a 1

NPT thread connection is not less than 43.4 mm / 1.71¨.

• Make sure the tank connection is level.

• ISO 228-1 (G) connection:

ISO 228-1 (G) connection: Make sure that you use the applicable gasket for the connection

ISO 228-1 (G) connection:ISO 228-1 (G) connection:

dimensions and the process.

• ISO 228-1 (G) connection:

ISO 228-1 (G) connection: Align the gasket correctly.

ISO 228-1 (G) connection:ISO 228-1 (G) connection:

• NPT connection:

NPT connection: Wind the thread seal tape around the process connection in agreement with

NPT connection:NPT connection:

good engineering practice.

• Lower the antenna carefully into the tank.

• Turn the threaded connection on the antenna to attach the device to the process connection.

• 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 connection to the correct torque (not more than 40 Nm).

3.7.5 Standpipes (stilling wells and bypass chambers)

Use a standpipe if:

• There is highly conductive foam in the tank.

• The liquid is very turbulent or agitated.

• There are too many other objects in the tank.

• The device is measuring a liquid (petro-chemicals) in a tank with a floating roof.

• The device is installed in a horizontal cylindrical tank (refer to the end of this section)

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 32

INSTALLATION

Figure 3-12: Installation recommendations for standpipes (stilling wells and bypass chambers)

1 A stilling well solution 2 A bypass chamber solution 3 Air circulation hole 4 Level of the liquid

OPTIWAVE 7400-24 C

CAUTION!

•

The standpipe must be electrically conductive.

•

The inside diameter of the standpipe must not be more than 5 mm / 0.2¨ over the diameter of the antenna (for a high-dielectric constant liquid).

•

The standpipe must be straight. There must be no sudden changes in internal diameter greater than 1 mm / 0.04

•

The standpipe must be vertical.

•

Recommended surface roughness: <±0.1 mm / 0.004¨.

•

Make sure that there are no deposits at the bottom of the standpipe.

•

Make sure that there is liquid in the standpipe.

Stilling wells - general notes Installation in tanks containing one liquid and foam

• Drill an air circulation hole (max. Ø10 mm / 0.4¨) in the stilling well above the maximum level.

• Remove the burr from the hole.

Installation in tanks containing one liquid or more without foam

• Drill an air circulation hole (max. Ø10 mm / 0.4¨) in the stilling well above the maximum level.

• Drill 1 or more liquid circulation holes in the stilling well (if there is more than 1 liquid in the

tank).

i These holes help the liquid to move freely between the stilling well and the tank.

• Remove the burr from the hole.

Stilling wells: floating roofs

If the device must be installed on a tank with a floating roof, install it in a stilling well.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 33

OPTIWAVE 7400-24 C

Figure 3-13: Floating roofs

1 Sediment 2 Support fixtures 3 Stilling well 4 Floating roof 5 Product 6 Tank

INSTALLATION

Stilling wells: horizontal cylindrical tanks

We recommend that you install the device in a stilling well if the device:

• is for a horizontal cylindrical tank,

• is in a metallic tank,

• measures a product with a high dielectric constant and

• is on the centerline of the tank.

Figure 3-14: Horizontal cylindrical tanks

1 The device is installed without a stilling well. There are multiple reflections. Refer to the CAUTION! that follows. 2 The device is installed in a stilling well and measures correctly.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 34

INSTALLATION

CAUTION!

If the device is installed in horizontal cylindrical tank that contains a high dielectric constant liquid without a stilling well, do not put it on the tank centerline. This will cause multiple reflections and the device will not measure accurately. Use the 2.5.8 Multiple Reflections function in Supervisor > Application more data,<Function Description> (2. Supervisor).

Bypass chambers Installation next to tanks containing one liquid and foam

• The top process connection of the bypass chamber must be above the maximum level of liquid.

• The bottom process connection of the bypass chamber must be below the lowest measured level of liquid.

Installation next to tanks containing more than one liquid

• The top process connection of the bypass chamber must be above the maximum level of liquid.

• The bottom process connection of the bypass chamber must be below the lowest measured level of liquid.

• Additional process connections are necessary for the liquids to circulate freely along the length of the bypass chamber.

OPTIWAVE 7400-24 C

2.5.8 Multiple Reflections

2.5.8 Multiple Reflections2.5.8 Multiple Reflections

Supervisor > Application to keep the effects of multiple reflections to a minimum. For

Supervisor > ApplicationSupervisor > Application

Figure 3-15: Installation recommendations for bypass chambers that contain more than one liquid

1 Bypass chamber 2 Additional process connection

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 35

OPTIWAVE 7400-24 C

3.8 How to attach antenna extensions

Horn antenna - antenna extensions

Figure 3-16: Horn antenna - how to attach antenna extensions

Equipment needed:

• 3 mm Allen wrench (not supplied)

INSTALLATION

INFORMATION!

Drop antenna:

Drop antenna: Antenna extensions can only be attached below flanges without the PP/PTFE

Drop antenna:Drop antenna: flange plate option

CAUTION!

Drop antenna:

Drop antenna: Make sure that there are not more than 5 antenna extensions attached to a device

Drop antenna:Drop antenna: with a Drop antenna. If there are more than 5 antenna extensions, the device will not measure correctly. Make sure that you put an O-ring 4 into the groove at the top of each antenna extension.

Equipment needed (not supplied):

• Torque wrench 200 Nm (for the H30 head of the Drop antenna sub-assembly)

• 3mm Allen wrench

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 36

INSTALLATION

3.9 How to turn or remove the signal converter

INFORMATION!

The converter turns 360 under process conditions.

. The converter can be removed from the process connection assembly

OPTIWAVE 7400-24 C

Figure 3-17: How to turn or remove the signal converter

1 Tool: 5 mm Allen wrench (not supplied) 2 Cover for the wave guide hole on top of the process connection assembly (not supplied)

CAUTION!

If you remove the converter, put a cover on the wave guide hole on top of the process connection assembly. When the converter is attached to the process connection assembly, tighten the lock screw.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 37

OPTIWAVE 7400-24 C

3.10 How to assemble the remote version

• Attach the wall bracket 1 to the flexible conduit.

• Tighten the locking nut 2 with a 24 mm wrench.

• Attach the wall bracket to a wall or pipe (DN50...100 / 2¨...4¨) 3.

• Loosen the housing locking screw 4 with a 5 mm Allen wrench.

• Remove the housing 5.

INSTALLATION

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 38

INSTALLATION

• Attach the housing to the flexible conduit 6.

• Tighten the housing locking screw 7.

• Attach the flexible conduit to the probe 8.

• Tighten the flexible conduit locking screw 9.

OPTIWAVE 7400-24 C

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 39

OPTIWAVE 7400-24 C

You can attach the wall bracket of the remote housing to a wall or pipe (DN50...100 / 2¨...4¨). These are the dimensions:

Figure 3-18: Dimensions of the wall bracket

Dimensions in mm

INSTALLATION

Dimensions [mm]

a b c d e f g h i j

Wall bracket 120 60 20 11 90 150 6 67.4 126.4 150.4

Dimensions in inches

Dimensions [inches]

a b c d e f g h i j

Wall bracket 4.7 2.4 0.8 0.4 3.5 5.9 0.2 2.65 4.98 5.92

3.11 Weather protection

3.11.1 How to attach the weather protection to the device

Equipment needed:

• Device.

• Weather protection (option).

• 10 mm wrench (not supplied).

The overall dimensions of the weather protection are.

• Loosen the bracket nuts on the weather protection.

• Remove the bracket.

• Lower the weather protection onto the device.

• Turn the weather protection so that the keyhole points forward.

• Attach the bracket.

• Lift the weather protection to the top of the housing support pillar.

• Hold the weather protection in the correct position and tighten the bracket nuts.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 40

INSTALLATION

3.11.2 How to open the weather protection

Equipment needed:

• Weather protection attached to the device.

• Large slotted tip screwdriver (not supplied).

• Put a large slotted tip screwdriver into the keyhole at the front of the weather protection. Turn

the screwdriver counterclockwise.

• Pull the top of weather protection up and forward.

i This will open the weather protection.

OPTIWAVE 7400-24 C

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 41

OPTIWAVE 7400-24 C

4.1 Safety instructions

DANGER!

All work on the electrical connections may only be carried out with the power disconnected. Take note of the voltage data on the nameplate!

DANGER!

Observe the national regulations for electrical installations!

DANGER!

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

WARNING!

Observe without fail the local occupational health and safety regulations. Any work done on the electrical components of the measuring device may only be carried out by properly trained specialists.

ELECTRICAL CONNECTIONS

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.

4.2 Electrical installation: 2-wire, loop-powered

4.2.1 Compact version

Terminals for electrical installation

Figure 4-1: Terminals for electrical installation

1 Grounding terminal in the housing (if the electrical cable is shielded) 2 Current output - 3 Current output + 4 Location of the external grounding terminal (at the bottom of the converter)

INFORMATION!

Electrical power to the output terminal energizes the device. The output terminal is also used for

HART

communication.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 42

ELECTRICAL CONNECTIONS

CAUTION!

•

Use the applicable electrical cables with the cable glands.

•

Make sure that the power supply does not have a current more than 5 A or that there is 5 Arated fuse in the electrical circuit that energizes the device.

1 Loosen the lock screw with a 2.5 mm Allen wrench. 2 Turn the cover counterclockwise with a strap wrench. 3 Remove the cover.

Equipment needed:

• Small slotted tip screwdriver (not supplied)

Procedure:

1 Do not disconnect the safety cord from the terminal compartment cover. Put the terminal

compartment cover adjacent to the housing.

2 Remove the connector from the circuit board. 3 Connect the electrical wires to the connector. Attach the connector to the circuit board. Tight-

en the cable entry glands.

OPTIWAVE 7400-24 C

1 Put the cover on the housing and push it down. 2 Turn the cover clockwise until it is fully engaged. 3 Tighten the lock screw.

4.2.2 Remote version

INFORMATION!

Electrical power to the output terminal energizes the device. The output terminal is also used for

HART

CAUTION!

•

For more electrical installation data, refer to

communication.

Use the applicable electrical cables with the cable glands. Make sure that the power supply does not have a current more than 5 A or that there is 5 A-

rated fuse in the electrical circuit that energizes the device.

Compact version

on page 41.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 43

OPTIWAVE 7400-24 C

ELECTRICAL CONNECTIONS

4.3 Remote device data

4.3.1 Requirements for signal cables supplied by the customer

DANGER!

An Ex-approved signal cable is supplied by the manufacturer with devices for hazardous locations. Use of this signal cable is mandatory.

Non-Ex devices only:

Non-Ex devices only: The signal cable is an option for non-Ex devices. If the signal cable is not

Non-Ex devices only:Non-Ex devices only: supplied by the device manufacturer, the cable must have properties that follow:

Basic properties

• Twisted cable 2 by 2, shielded or screened. For example, multicore cable — reference MCD 5123 — from Cabletec ICS/JP Electronics.

Maximum length of the signal cable

• 100 m / 328 ft

Temperature

• Use electrical cable with the applicable temperature rating for the operating conditions.

• Ambient temperature range: -40...+80°C / -40...+175°F

• We recommend that the cable agrees with UL 94V-0.

Dimensions of the insulated conductors

• Min.-max. cross-sectional area of the conductors: 4×0.326...4×2.5 mm² (22....14 AWG),

shielded cable

• Use the applicable cable for the cable glands (Ø6....10 mm / 0.24...0.39¨).

• Use the applicable cable glands for the cable entry openings in the housing.

Electrical characteristics

• Test voltage: Insulated conductor / shield (screen) ≥ 500 VAC

• Line resistance: < 55 Ω/km

• The cable must agree with EN 60811 (Low Voltage Directive) or equivalent national

regulations.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 44

ELECTRICAL CONNECTIONS

4.3.2 How to prepare a signal cable supplied by the customer

OPTIWAVE 7400-24 C

Figure 4-2: Equipment needed to prepare the signal cable

1 Signal cable (supplied on request) 2 2 heat-shrinkable sleeves for the PVC jacket (not supplied) 3 8 ferrules for the end of the conductors (not supplied) 4 2 Faston connectors for the shield wires 5 Shield wire insulation, 2 sleeves 6 Wire stripper (not supplied) 7 Crimping pliers (not supplied)

INFORMATION!

•

The Faston connector for the stranded drain wire must agree with DIN 46 228: E 1.5-8

•

The wire end ferrules for the twisted pair of conductors must agree with DIN 46 228: E 0.5-8

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 45

OPTIWAVE 7400-24 C

Figure 4-3: How to prepare the signal cable

ELECTRICAL CONNECTIONS

1 Remove the PVC jacket from the wire to dimension "a". a = 50 mm / 2¨. 2 Remove the insulation from the wire. Obey national regulations for electrical wiring. 3 Crimp the wire end ferrules on the conductors. 4 Install shield wire insulation on the 2 ends of the shield wire. 5 Crimp the Faston connectors on the 2 ends of the shield wire. 6 Install a heat-shrinkable sleeve on the PVC jacket.

4.3.3 How to connect the signal cable to the device

DANGER!

Cables may only be connected when the power is switched off.

DANGER!

The device must be grounded in accordance with regulations in order to protect personnel against electric shocks.

DANGER!

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

WARNING!

Observe without fail the local occupational health and safety regulations. Any work done on the electrical components of the measuring device may only be carried out by properly trained specialists.

CAUTION!

Do not wind the signal cable. This configuration will prevent interference from electromagnetic fields.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 46

ELECTRICAL CONNECTIONS

Figure 4-4:

1 Remote converter 2 3 Power supply: voltage in - 4 Power supply: voltage in + 5 Signal cable B 6 Signal cable A 7 )

OPTIWAVE 7400-24 C

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 47

OPTIWAVE 7400-24 C

How to connect the signal cable to the remote converter

ELECTRICAL CONNECTIONS

Figure 4-5: How to connect the signal cable to the remote converter

CAUTION!

Bending radius of the signal cable: ≥ 50 mm / 2

1 Remove the terminal compartment cover. 2 Remove the 4-pin connector. 3 Put the signal cable into the opening of the cable gland. 4 Put the electrical wires in the connector terminals. Tighten the terminal screws with a small

slotted-tip screwdriver. Make sure that the electrical wires agree with the terminals. For more data, refer to the electrical schema in this section.

5 Put the connector into the 4-pin socket. 6 Attach the Faston connector (drain wire). 7 Attach the terminal compartment cover. 8 Tighten the cable gland. Make sure that the remote converter is correctly sealed.

CAUTION!

Bending radius of the signal cable: ≥ 50 mm / 2

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 48

ELECTRICAL CONNECTIONS

slotted-tip screwdriver. Make sure that the electrical wires agree with the terminals. For more data, refer to the electrical schema in this section.

5 Put the connector into the 4-pin socket. Attach the Faston connector (drain wire). 6 Attach the terminal compartment cover. 7 Tighten the cable gland. Make sure that the probe housing is correctly sealed.

4.4 Electrical connection for current output

4.4.1 Non-Ex devices

OPTIWAVE 7400-24 C

Figure 4-6: Electrical connections for non-Ex devices

1 Power supply 2 Resistor for HART® communication 3 Optional connection to the grounding terminal 4 Output: 11.5...30 VDC for an output of 22 mA at the terminal 5 Device

4.4.2 Devices for hazardous locations

DANGER!

For electrical data for device operation in hazardous locations, refer to the related certificates of compliance and supplementary instructions (ATEX, IECEx, cFMus, ...). You can find this documentation on the DVD-ROM delivered with the device or it can be downloaded free of charge from the website (Download Center).

4.5 Protection category

INFORMATION!

The device fulfils all requirements per protection category IP66 / IP67. It also fulfils all requirements per NEMA type 4X (housing) and type 6P .

DANGER!

Make sure that the cable gland is watertight.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 49

OPTIWAVE 7400-24 C

4.6 Networks

4.6.1 General information

The device uses the HART® communication protocol. This protocol agrees with the HART® Communication Foundation standard. The device can be connected point-to-point. It can also have a polling address of 1 to in a multi-drop network.

The device output is factory-set to communicate point-to-point. To change the communication mode from point-to-point

4.6.2 Point-to-point connection

point-to-point to multi-drop

point-to-pointpoint-to-point

multi-drop.

multi-dropmulti-drop

ELECTRICAL CONNECTIONS

Figure 4-7: Point-to-point connection (non-Ex)

1 Address of the device (0 for point-to-point connection) 2 4...20 mA + HART® 3 Resistor for HART® communication 4 Power supply 5 HART® converter 6 HART® communication software

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 50

ELECTRICAL CONNECTIONS

4.6.3 Multi-drop networks

Figure 4-8: Multi-drop network (non-Ex)

1 Address of the device (each device must have a different address in multidrop networks) 2 4mA + HART® 3 Resistor for HART® communication 4 Power supply 5 HART® converter 6 HART® communication software

OPTIWAVE 7400-24 C

4.6.4 Fieldbus networks

For more data, refer to the supplementary instructions for FOUNDATION™ fieldbus and PROFIBUS PA.

FOUNDATION™ fieldbus network (non-Ex)

Figure 4-9: FOUNDATION™ fieldbus network (non-Ex)

1 Field device 2 Junction box 3 H1 network 4 H1/HSE converter 5 High Speed Ethernet (HSE) 6 Workstation

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 51

OPTIWAVE 7400-24 C

PROFIBUS PA/DP network (non-Ex)

Figure 4-10: PROFIBUS PA/DP network (non-Ex)

1 Field device 2 Bus termination 3 PROFIBUS PA bus segment 4 Segment coupler (PA/DP link) 5 PROFIBUS DP bus line 6 Control system (PLC / Class 1 master device) 7 Engineering or operator workstation (Control tool / Class 2 master device)

ELECTRICAL CONNECTIONS

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 52

START-UP

5.1 How to start the device

5.1.1 Start-up checklist

Check these points before you energize the device:

• Are all the wetted components (antenna, flange and gaskets) resistant to the product in the tank?

• Does the information on the signal converter nameplate agree with the operating data?

• Did you correctly install the device on the tank?

• Do the electrical connections agree with the national electrical codes? Use the applicable

electrical cables with the cable glands.

DANGER!

Before you energize the device, make sure that the supply voltage and polarity are correct.

DANGER!

Make sure that the device and the installation agrees with the requirements of the Ex certificate of compliance.

OPTIWAVE 7400-24 C

5.1.2 How to start the device

• Connect the converter to the power supply.

• Energize the converter.

i Devices with the LCD display option only:

Devices with the LCD display option only: After 10 seconds the screen will display "Starting

Devices with the LCD display option only:Devices with the LCD display option only: up". After 20 seconds the screen will display the software version numbers. After 30 seconds the default screen will appear.

• The device will display readings.

INFORMATION!

This chapter and the start of the chapter that follows tell you what data is given on the device display in normal mode and how to change device settings in configuration mode. If you know about how this device operates, you can ignore this data. Continue with the quick setup procedure. For more data about this procedure, refer to Quick Setup (Commissioning) on page 70

5.2 Operating concept

You can read measurements and configure the device with:

• A digital display screen (optional).

• A connection to a system or PC with PACTware™. You can download the Device Type

Manager (DTM) file from the website. It is also supplied on the DVD-ROM delivered with the device.

• A connection to a system or PC with AMS™. You can download the Device Description (DD) file from the website. It is also supplied on the DVD-ROM delivered with the device.

• A connection to a HART file from the website. It is also supplied on the DVD-ROM delivered with the device.

Field Communicator. You can download the Device Description (DD)

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 53

OPTIWAVE 7400-24 C

5.3 Digital display screen

5.3.1 Local display screen layout

START-UP

Figure 5-1: Local display screen layout in Normal mode

1 Current output percentage (bar graph and text — only shown if the current output function is the same as the mea-

surement on the screen in normal mode)

2 Measurement type (in this example, distance) 3 Device status (NE 107 symbols) 4 Device tag name 5 Updated measurement data symbol (the symbol flashes each time the measurement data is updated) 6 Measurement value and units 7 Device status (markers) 8 Keypad buttons (refer to the table in the section that follows)

The current output percentage is only shown if the measurement type (refer to item 2 in the illustration) is the same as the output function. The parameter is set in menu item 2.4.1 (OUTPUT FUNC.). For example, if the output function is set to "Level" and the device shows "Level" measurements in normal mode, the bar graph and value is shown (refer to item 1 in the illustration).

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 54

START-UP

Figure 5-2: Local display screen layout in configuration mode

1 Function name 2 Configuration mode symbol 3 Menu number

OPTIWAVE 7400-24 C

5.3.2 Functions of keypad buttons

Keypad button Function

Normal mode:

Normal mode: Enter menu (Enter Configuration mode)

[Right]

[Return / Escape]

[Down]

[Up]

1 If you have made a strapping table in menu item 2.8.1 INPUT TABLE for volume or mass measurement, "Conversion"

and "Ullage Conv." will be shown in the list of measurement types

For data on keypad functions, refer to

Normal mode:Normal mode:

Configuration mode:

Configuration mode: Move cursor to the right

Configuration mode:Configuration mode:

Normal mode:

Normal mode: Change units (m, cm, mm, in, ft)

Normal mode:Normal mode:

Configuration mode:

Configuration mode: Exit

Configuration mode:Configuration mode:

Normal mode:

Normal mode: Change measurement type (distance, level , output (%),

Normal mode:Normal mode: output (mA), conversion, ullage conversion)

Configuration mode:

Configuration mode: Decrease value or change parameter

Configuration mode:Configuration mode:

Normal mode:

Normal mode: Change measurement type (distance, level , output (%),

Normal mode:Normal mode: output (mA), conversion, ullage conversion, reflection)

Configuration mode:

Configuration mode: Increase value or change parameter

Configuration mode:Configuration mode:

Normal mode

5.4 Remote communication with PACTware™

PACTware™ displays measurement information clearly on a computer (PC) and lets you configure the device from a remote location. It is an Open Source, open configuration software for all field devices. It uses Field Device Tool (FDT) technology. FDT is a communication standard for sending information between the system and the field device. Field devices are easily integrated. Installation is supported by a user-friendly Wizard.

on page 57.

Install these software programs and equipment:

• Microsoft® .NET Framework version 1.1 or later.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 55

OPTIWAVE 7400-24 C

• PACTware.

• HART

• The Device Type Manager for the device.

The software and installation instructions are given on the DVD-ROM supplied with the device.

You can also download the latest version of PACTware™ and the DTM from our internet site.

Refer also to the PACTware™ consortium site at http://www.pactware.com.

converter (USB, RS232...).

START-UP

Figure 5-3: Screen from the PACTware™ user interface

1 DTM menu 2 Information for device identification 3 Configuration summary

5.5 Remote communication with the AMS™ Device Manager

The AMS™ Device Manager is an industrial Plant Asset Management (PAM) software tool. Its role is to:

• Store configuration information for each device.

• Support HART® and FOUNDATION™ fieldbus devices.

• Store and read process data.

• Store and read diagnostic status information.

• Help plan preventive maintenance to reduce a plant's downtime to a minimum.

The DD file is given on the DVD-ROM supplied with the device. You can also download it from our website.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 56

OPERATION

6.1 User modes

Normal mode

Normal mode This mode displays measurement data. For more data, refer to

Normal modeNormal mode

Configuration mode

Configuration mode Use this mode to view parameters, commission the device, create tables

Configuration modeConfiguration mode

OPTIWAVE 7400-24 C

on page 57.

mode

for volume or mass measurement, change critical values to measure in difficult process conditions. To get access to supervisor menu, refer to

Protection of the device settings

refer to

Function description

on page 73. For more data on menu items,

on page 63.

Normal

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 57

OPTIWAVE 7400-24 C

6.2 Normal mode

This mode shows measurement data. Use the table that follows:

• for the selection of the measurement type (level, distance, percentage, conversion and reflection) and

• for the selection of the measurement units

Some measurement types will only be available if the device has the correct parameters entered in the configuration mode.

Measurement type definitions

Measurement type Description Available units

OPERATION

LEVEL This is a display and an output function option.

DISTANCE This is a display and an output function option.

CONVERSION This is a display and an output function option.

ULLAGE CONV. This is a display and an output function option.

It is the height from the bottom of the tank to the surface of the liquid (Tank height Distance).

It is the distance from the face of the flange (or thread stop) to the surface of the liquid.

It gives the volume or mass of the tank contents. This data is available if you prepare a volume or mass table in configuration mode. For data on how to prepare the conversion table, refer to

measure volume or mass

device is used with PACTware™ software, it can also show flow rate in a channel. 6 flow profiles are available in the menu: Parshall (ISO 9826), Venturi Rectangular (ISO 4359), Venturi Trapezoidal (ISO 4359), Venturi U (ISO 4359), V-Notch (ISO 1438) or Rectangular Notch (ISO 1438).

It gives the empty volume or remaining mass that can be put in the tank. This data is available if you prepare a volume or mass table in configuration mode. For data on how to prepare the conversion table, refer to

How to configure the device to

on page 76. If the

How to

m, cm, mm, in (inches), ft (feet)

m3, L, gal (US gallons), ImpG (Imperial gallons), ft3, bbl (oil barrel), kg, t, Ston, Lton, m, cm, mm, in, ft, m3/h, ft3/h

configure the device to measure volume or mass

on page 76.

REFLECTION This is a display and an output function option.

It is the percentage of the emitted radar signal which makes a reflection on the surface of the liquid and is received by the device.

OUTPUT I (mA) The current output of the device. mA

OUTPUT I (%) The percentage of the current output.

0% = 4 mA. 100% = 20 mA.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 58

OPERATION

6.3 Configuration mode

6.3.1 General notes

OPTIWAVE 7400-24 C

Change the settings of your device in Configuration

63. You can:

• Use the 1.0.0 INFORMATION records. For more data about the Information menu, refer to Table 1: Info.

• Use the 2.0.0 SUPERVISOR conversion table for volume, mass or flow rate measurement, change critical parameters for difficult process conditions, reset the device and change basic parameters (tank height etc.), output settings, HART Address etc. For more data about the Supervisor menu, refer to Table 2: Supervisor.

1.0.0 INFORMATION menu to read settings, device software versions and error

1.0.0 INFORMATION1.0.0 INFORMATION

2.0.0 SUPERVISOR menu to commission the device, to run diagnostic tests, set up a

2.0.0 SUPERVISOR2.0.0 SUPERVISOR

Configuration mode. Data about the menus is given on page

ConfigurationConfiguration

CAUTION!

The quick setup (commissioning) procedure is mandatory.

INFORMATION!

It is not possible to enter the 3.0.0 SERVICE and 4.0.0 MASTER menus. These menus are for factory calibration and approved personnel only.

6.3.2 How to get access to the commissioning menu

The Quick Setup menu contains the menu items that are necessary for most configurations of the device. The menu items are divided into 2 groups: "Commisioning" and "Recording Empty Spectrum". The "Commisioning" group lets the supervisor set the tank height, tank type (process, storage etc.), output function, output current range, 4 mA output setting, 20 mA output setting, error delay and tag name. "Recording Empty Spectrum" is a procedure that finds interference signals in the tank and uses a filter to remove them from the measurement data.

Do the steps that follow:

• Push the [>>>>] button.

i This shows the Information

password security.

• Push the [] button one time to scroll up to the Supervisor

Information menu. The Information

InformationInformation

Information menu is read only and does not have

InformationInformation

Supervisor menu.

SupervisorSupervisor

i The screen shows the text "2.0.0 SUPERVISOR".

• Push the [>>>>] button one time.

i The screen shows a line. You must enter the password. Push the buttons under the display

screen 6 times (in total and in a given order) to get access to Configuration mode.

• Type in the password. The factory-set password is [>>>>], [^^^^], [], [], [>>>>] and [^^^^].

i The device shows the text "2.1.0 QUICK SETUP".

INFORMATION!

HOW TO SET THE SUPERVISOR PASSWORD TO "ON" OR "OFF" The supervisor password is set to "on" by default. If it is necessary to set this function to "off", refer to Function description on page 63

(2.7.4).

, Table 2: Supervisor menu, menu item PSWD YES/NO

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 59

OPTIWAVE 7400-24 C

INFORMATION!

HOW TO CHANGE THE SUPERVISOR PASSWORD You can change the password for the supervisor menu. For more data, refer to Function description on page 63

6.3.3 Keypad functions

OPERATION

, Table 2: Supervisor menu, menu item PASSWORD (2.7.5).

Figure 6-1: Local display screen layout in configuration mode

1 Function name 2 Configuration mode symbol 3 Menu number

This is what you see when you are in Configuration mode. The functions of the buttons are given in the table that follows:

Functions of buttons for menu navigation

Button Description Function

Right

Enter / Esc (Escape)

Down

•

Go down to the sub-menu level (for example, from menu 1.0.0 to sub-menu 1.1.0).

•

Enter the menu item

•

Go up to the menu level (for example, from sub-menu 1.1.0 to menu

1.0.0).

•

Go to Normal mode. If you changed settings in Configuration mode, you must save or cancel your new settings. For more data, refer to the end of this section.

•

Scroll down the menu list (for example, from menu 2.0.0 to menu

1.0.0).

•

Scroll down the sub-menu list (for example, from sub-menu 2.2.0 to sub-menu 2.1.0).

•

Scroll up the menu list (for example, from menu 1.0.0 to menu

2.0.0).

•

Scroll up the sub-menu list (for example, from sub-menu 2.1.0 to sub-menu 2.2.0).

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 60

OPERATION

Lists of parameters in menu items

Figure 6-2: Lists of parameters in menu items

1 Parameter 2 Menu name

OPTIWAVE 7400-24 C

This is what you see when you select a menu item that has a list of parameters. The functions of the buttons are given in the table that follows:

Function of buttons in menu items that have a list of parameters

Button Description Function

Right n/a

Enter / Esc (Escape)

Down Move down the list

Up Move up the list

Select the parameter and go back to the menu

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 61

OPTIWAVE 7400-24 C

Values in menu items

Figure 6-3: Values in menu items

1 Menu item with values stored at this time (first screen) 2 Push [>>>>] again to change the values. A cursor shows on the first digit. 3 Menu item name 4 Cursor on the selected digit

OPERATION

This is what you see when you select a menu item that has a value. The functions of the buttons are given in the table that follows:

Function of buttons in menu items that have values

Button Description Function

Right

Enter / Esc (Escape)

Down Decrease the digit value.

Up Increase the digit value.

•

Enter the menu item and see the value stored at this time.

•

Enter the menu item configuration level to change the value.

•

Move the cursor to the next digit on the right. If the cursor is on the last digit, push [>>>>] again to go back to the first digit.

Accept the value and go back to the sub-menu.

How to save settings changed in the supervisor menu (menu 2.0.0)

• When you have changed parameters in all the necessary menu items, push [^^^^] to accept the

new parameter.

• Push [^^^^] to go back to the "STORE" screen.

• The device will ask you to save or cancel your settings. Push [] or [] to select STORE YES

STORE NO

STORE NO. Push [^^^^] to accept or reject the new settings.

STORE NOSTORE NO

STORE YES or

STORE YESSTORE YES

i The display goes back to Normal mode.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 62

OPERATION

6.3.4 Menu overview

1.0.0 Info. (Information)

1.1.0 Ident. (Identification)

1.2.0 Output

1.3.0 History

2.0.0 Supervisor

2.1.0 Quick Setup

2.2.0 Tests

2.3.0 Basic Parameters

2.4.0 Output I

2.5.0 Application

2.6.0 Communication

2.7.0 Display

2.8.0 Conversion

2.9.0 Config/Reset

OPTIWAVE 7400-24 C

3.0.0 Service

n/a Password locked. Menus for factory calibration and qualified

service personnel only.

4.0.0 Master

n/a Password locked. Menus for factory calibration and qualified

service personnel only.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 63

OPTIWAVE 7400-24 C

6.3.5 Function description

1.0.0 Information (Info.) menu

OPERATION

Function Function description Selection list Default

No.

1.1.0 IDENT.

1.1.1 SERIAL NUM. The device serial number. Read only.

1.1.2 CONV.FIRM.VER The converter firmware version. Read only.

1.1.3 SEN.FIRM.VER The sensor firmware version. Read only.

1.1.4 HMI.FIRM.VER The HMI (device display screen) firmware version.

1.1.5 The converter hardware version. Read only.

1.1.5 The sensor hardware version. Read only.

1.1.8 The HMI (device display screen) hardware version.

1.1.9 The date of manufacture. Read only.

Read only.

1.2.0 OUTPUT

1.2.1 OUTPUT FUNC. This shows the setting at this time for the output function (OUTPUT FUNC.).

1.2.2 RANGE I This shows the setting at this time for the output range (RANGE I).

1.2.3 SCALE 4mA This shows the setting at this time for the 4 mA setting (SCALE 4mA).

1.2.4 SCALE 20mA This shows the setting at this time for the 20 mA setting (SCALE 20mA).

1.2.5 ERROR DELAY This shows the settings at this time for the error delay (ERROR DELAY).

Read only.

1.3.0 HISTORY

1.3.1 ERROR RECORD A log of device errors. Push [>>>>] to read

1.3.2 A log of the last 10 changes to the

the errors. Push [] or [] to scroll up or down the list. Each error is identified by a code. Push [>>>>] again to show the number of incidents and the time since the last incident in days, hours, minutes and seconds. For more data about errors, refer to

messages

device settings. Push [] or [] to scroll up or down the list. Push [>>>>] to show the time since the last change in days, hours, minutes and seconds.

on page 79.

Status and error

Read only.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 64

OPERATION

2.0.0 Supervisor menu

OPTIWAVE 7400-24 C

Function Function description Selection list Default

No.

2.1.0 COMMISSION.

2.1.1 PARAMETERS This starts a quick set-up procedure

2.1.2 EMP.SPEC.REC. Fixed and moving objects in the tank cause

1 Do you have a completely filled tank?

2 Please, activate moving parts!

3 Is your tank partially filled or empty?

4 MEAS.DISTANCE

5 Emp.Spec.Type

6 Recording in progress

7 Empty spectrum graph

8 Do you want to save the empty spectrum

applicable to most applications. The supervisor can give the display language (LANGUAGE), tank height (TANK HEIGHT), type of tank (TANK TYPE), output function (OUTPUT FUNC.), current output range (RANGE I), 4 mA setting (SCALE 4mA), 20 mA setting (SCALE 20mA), error delay (ERROR DELAY) and tag name (TAG NAME).

interference signals. Put them through this filter to correctly measure the tank contents. A quick set-up procedure will go through the steps that follow (refer also to "How to make a filter to remove radar signal interference" on page 77):

Do you have a completely filled tank?

Do you have a completely filled tank?Do you have a completely filled tank? If the tank is full, it is not possible to complete this procedure. The tank must be partially filled or empty.

Please, activate moving parts!

Please, activate moving parts!Please, activate moving parts! We recommend that you switch on moving equipment to filter all interference signals.

Is your tank partially filled or empty?

Is your tank partially filled or empty?Is your tank partially filled or empty? If the tank is partially filled, the device must include the tank contents when it filters the signal.

MEAS.DISTANCE

MEAS.DISTANCEMEAS.DISTANCE If the tank is partially filled, type in a distance shorter than that between the flange and the tank contents.

Emp.Spec.Type

Emp.Spec.TypeEmp.Spec.Type Use the average value for tanks which contain fixed objects only. Use the maximum value for tanks which contain many objects or moving objects.

Recording in progress

Recording in progressRecording in progress Reading in progress

Reading in progress

Reading in progressReading in progress

Empty spectrum graph

Empty spectrum graphEmpty spectrum graph This shows a set of spectra (signals found in the tank). It also gives the amplitude and location of each signal. Push [>>>>] to make a selection from the available spectra.

data?

Yes [>>>>], No []

OK [>>>>]

Partially [>>>>], Empty []

min-max: 0…tank height (2.3.1)

Maximum, Average ?

Yes [>>>>], No []

distance to tank contents 300 mm / 12¨

2.2.0 TESTS

2.2.1 SET OUTPUT This sets the current output to a test value

[mA]. The output will change to the given value, independent of the measured value. The current output will go back to the measured value when the display goes back to the menu level.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

3.5, 4, 6, 8, 10, 12, 14, 16, 18, 20 or 22 mA

3.5 mA

Page 65

OPTIWAVE 7400-24 C

OPERATION

Function Function description Selection list Default

No.

2.2.2 DIAGNOSTIC This starts the hardware test. Push [>>>>] many

2.2.3. The corrected spectrum. TBD.

times to show:

•

D1, the time of operation

•

T1, temperature of the electronic converter board

•

I1, loop current (internally measured value)

•

I2, load current (NOTE: this data is not available at this time)

•

V1, voltage 5.6 V. If the voltage is not

5.0<V1<5.7, speak to the supplier.

•

V2, voltage on capacitors. If the voltage is not 3.2<V2<3.4, speak to the supplier.

•

V3, voltage 3.3 V. If the voltage is not

3.2<V3<3.4, speak to the supplier.

•

C1, reset counter (watchdog timer). If C1>1, replace the signal converter.

If an NE 107 symbol and a status marker are shown, refer to page 79. If you push [>>>>] again, the display goes back to the menu level.

Device status (markers)

2.3.0 BASIC PARAM.

2.3.1 TANK HEIGHT The distance from the flange face / thread

2.3.2 BLOCK. DIST. Blocking distance. The distance from the

2.3.3 TIME CONST. Using this function, the device processes

2.3.4 TAG NAME The device has an identification code (tag

2.3.5 ANTENNA.EXT Optional antenna extensions.These are

stop of the tank connection down to the tank bottom. If the tank has a dish-shaped or conical bottom, the tank height is measured to a point on the tank bottom directly below the antenna. For more data about level measurement, refer to on page 75. For more data about distance measurement, refer to

measurement

flange to the top limit of the measuring range (a zone given by the user where it is not possible to measure). We recommend a blocking distance of 500 mm / 19.7¨ below the process connection. We also recommend that the limit of the measuring range is not less than the blocking distance. If it is possible that the tank contents will go above the blocking distance, set 2.5.5 OVERF. ENAB. to "Yes". If the distance is less than the blocking distance, the device continues to display the blocking distance.

several measurement readings to filter out disturbances. Increasing the time constant will smoothen the integrated readings, decreasing will roughen the readings. s=seconds.

name). The supervisor can enter a maximum of 8 numbers or letters.

attached between the flange and the antenna.

on page 74.

Level measurement

Distance

min-max: 0…30 m / 0…98.4 ft

min: 100 mm / 13.9¨ or

2.3.6 ANTENNA.EXT max: 2.3.1 TANK HEIGHT

min-max: 1.00...100.00 s 5.00 s

min: 0 mm / 0¨ or 2.3.6 ANTENNA.EXT max: 2000 mm / 78.7¨ or

2.3.1 TANK HEIGHT

500 mm / 19.7¨

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 66

OPERATION

OPTIWAVE 7400-24 C

Function Function description Selection list Default

No.

2.3.6 DIST.PIECE Optional distance piece between the

2.3.7 Reference offset. Offset relating to a

2.3.8 Tank bottom offset. Offset relating to a

converter and the process connection. This is for high-temperature applications more than +150°C / +302°F. The distance piece is 120 mm / 4.7¨ long. For more data, refer to

Technical data

reference location (distance). This value is positive when the reference location is above the device flange face and negative if below. For more data, refer to

measurement

reference location (level). The device reference point for this parameter is the bottom of the tank (set in menu item C.1.2.0). This value is positive when the reference location is below the tank bottom and negative if above. For more data, refer

Level measurement

on page 90.

Distance

on page 74.

on page 75.

min: 0 mm / 0¨ max: TANK HEIGHT

min-max:

-tank height…50 m /

-tank height...164.05 ft

min-max:

-tank height...3000 m /

-tank height...9843 ft

2.4.0 OUTPUT I

2.4.1 OUTPUT FUNC. The output function. Select an output

2.4.2 RANGE I This menu item sets the limits of the output

2.4.3 SCALE 4mA This gives a measurement value to 4 mA. min.-max:

2.4.4 SCALE 20mA This gives a measurement value to 20 mA. min.-max:

2.4.5 ERROR DELAY The time after which the current output

function to scale the current values in relation to a given point (usually the device process connection or the tank bottom). The output current value is shown on a bar graph in normal mode if the measurement type is the same as the output function. Conversion parameters are shown (Conversion, Ullage conversion) if there is level-volume, level-mass or level-flow rate data in 2.8.1 INPUT TABLE.

current range to 1 of the 2 available options: standard limits (4...20 mA) or NAMUR NE 43-compliant limits (3.8...20.5 mA). It also tells the device what to do if an error occurs. if you set RANGE I to 4-20/22E an error occurs (e.g. the tank is too full, ...), the device output current will change to an error value of 22 mA . If you set RANGE I to 4-20

4-20 and the device senses a measurement

4-204-20 error, the value will stop at the last correct measurement.

changes to an error value. The error value shows that there is a measurement error. mn=minutes and s=seconds.

4-20/22E and

4-20/22E4-20/22E

Distance, Level, Conversion, Ullage conversion, Reflection

4-20, 4-20/22E, 420/3.6E, 3.8-20.5/22E,

3.8-20.5/3.6E

0 s, 10 s, 20 s, 30 s, 1 mn, 2 mn, 5 mn,15 mn

0m/ 0ft

4-20/3.6E

2.5.0 APPLICATION

2.5.1 TANK TYPE The conditions in which the device is used. If

the surface of the product is flat, select "Storage". If the surface of the product is disturbed, select "Process". If the surface of the product is agitated with vortexes and foam, select "Agitator".

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Storage, Process, Agitator

Process

Page 67

OPTIWAVE 7400-24 C

OPERATION

Function Function description Selection list Default

No.

2.5.2 STILLWELL D. The inner diameter of the stilling well. If the

2.5.3 TRACING VEL. Maximum tracking velocity. This value must

2.5.4 MEASUR.MODE The device uses the dielectric constant (εr)

2.5.5 Er PRODUCT For measurement in TBF mode only. The

2.5.6 OVERF. ENAB. If this function is in operation, the device will

2.5.7 OVERF.

THRESH.

device is installed in a stilling well or has a Wave-Guide antenna, enter the diameter. The device will use this data if you set 2.3.4 STILLWELL EN. to "Yes". This menu item is not shown if you set 2.3.4 STILLWELL EN. to "No".

agree with the maximum rate of change of the level of the liquid in the tank.

of the tank contents to monitor level. In direct mode (if the dielectric constant is high), the level signal is a reflection on the surface of the tank contents. If the dielectric constant is low, the device uses TBF mode. The device in TBF mode uses the radar reflection on the bottom of the tank (the signal goes through the tank contents). The tank must have a flat bottom for the device to operate correctly in TBF mode. This menu item is set by default to "Direct" for tank contents with an ε

(<1.6), use "TBF Full". If ε

1.5...1.7), use "TBF Partial" mode. "TBF Partial" is an automatic mode that lets the device make a selection between "Direct mode and "TBF" mode. If you use "TBF Full" or "TBF Partial", enter the dielectric constant in menu item 2.5.3 Er PRODUCT. Refer also to "Measuring principle" on page

90.

device automatically calculates the level based on the product εr. If you select "TBF

Partial" or "TBF Full" in menu item 2.5.4 MEASUR.MODE, you can change the εr value

manually to adjust readings.

monitor the level even if it is in the blocking distance. The reading shown on the display stays fixed at the blocking distance if the level is higher than the blocking distance. The output will show that the tank is full. An error is recorded by default. If this function is not in operation, the device looks for the largest signal between the process connection and the tank bottom.

The overfill threshold. TBD.

>1.8. If εr is very low

is low (εr=

min-max: 22...999 mm /

0.9...39.3¨

min-max:

0.1…10.0 m/min

Direct, TBF Partial, TBF Full

min-max: 1.100 to 10.000 2.000

YES, NO NO

0.5 m/min

Direct

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 68

OPERATION

OPTIWAVE 7400-24 C

Function Function description Selection list Default

No.

2.5.8 MULT.REF.EN. Multiple reflections will cause the device to

2.5.7 EMP.SPEC.EN. The supervisor can start or stop the empty

display smaller level readings. Objects in the tank, sharp corners, installation of the device on a large nozzle or at the centre of a dome roof, and low dielectric products (εr=

1.8...5) can cause multiple reflections. A very calm surface or a tank with a small convex or flat roof can also cause multiple reflections. If this function is in operation, the device looks for the first signal peak below the process connection. This signal peak is then used to measure the level of the tank contents. If this function is not in operation, the device looks for the largest signal below the process connection.

spectrum filter.

2.6.0 COMMUNICAT.

2.6.1 ADDRESS

2.6.2 Each HART value (PV (primary value), SV

Any HART® address greater than 0 will activate HART

current output stays constant at 4 mA.

(secondary value), TV (tertiary value) and QV (quaternary value)) can be set to a different measurement type (level, distance, reflectivity, conversion, ullage conversion).

multidrop mode. The

YES, NO NO

min.-max: 0…63 0

2.7.0 DISPLAY

2.7.1 LANGUAGE Data can be shown in any of the languages

2.7.2 LENGTH UNIT The length unit shown in normal mode. m, cm, mm, in (inches), ft

2.7.3 CONV UNIT Conversion unit. The length, volume, mass

2.7.4 PSWD YES/NO If it is necessary to protect your settings in

2.7.5 PASSWORD This changes the password for the

2.7.6 CONTRAST The contrast control for the display screen.

stored in the device.

or flow rate conversion unit for the conversion table and shown in normal mode.

the supervisor menu with a password, set this menu item to YES

supervisor menu. Push the buttons up to 6 times in any order. This will be the new password. To confirm the change, enter the new password a second time. For more data, refer to

settings

You can select a shade of grey between light grey (level 20) and black (level 54).

on page 73.

YES.

YESYES

Protection of the device

9 languages are available in 3 packs: (1) English, French, German and Italian; (2) English, French, Spanish and Portuguese; (3) English, Chinese (Mandarin), Japanese and Russian

(feet)

m3, L, gal (US gallons), ImpG (Imperial gallons), ft3, bbl (oil barrel), kg, t, Ston, Lton, m, cm, mm, in, ft, m3/h, ft3/h

YES, NO YES

min.-max: 20…54 36

[>>>>], [^^^^], [], [], [>>>>] and [^^^^]

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 69

OPTIWAVE 7400-24 C

OPERATION

Function Function description Selection list Default

No.

2.7.7 If it is not easy to read the data on the LCD

display screen, this menu item operates the display screen light. If you set this menu item to YES

YES, the light comes on.

YESYES

YES, NO NO

2.8.0 CONV. TABLE

2.8.1 INPUT TABLE The device uses a conversion table

(strapping table) to convert measurements to volume, mass and flow rate readings. The readings are shown in normal mode. Give the number of entries on the table (min. 2; max. 30). Select an entry (01...30) and enter the level and the related volume / mass / flow rate value for that entry. Push [^^^^] to confirm the entry values. Continue the procedure until the device has data for all the entries. For more data, refer to

How to configure the device to measure volume or mass

on page 76.

2.8.2 DELETE TABLE This menu item erases the data in the conversion table.

min. 2 entries max. 30 entries (level / volume, mass or flow rate)

YES, NO NO

2.9.0 CONFIG/RESET

2.9.1 SAVE This menu item is not available. YES, NO NO

2.9.2 RECALL This menu item is not available. YES, NO NO

2.9.3 RESTART This menu item starts the device again. YES, NO NO

2.9.4 RESET FACT. If you set this menu item to "YES", the device goes back to its initial settings (set by the manufacturer in the factory).

1 This value is given in the customer order data 2 Units and range depend on the output function, length unit and volume unit selected 3 If the device has the LCD display option, this depends on data given in the customer order

YES, NO NO

0 entries

3. Service menu

Menu No.

3.0.0 SERVICE Advanced settings. The settings in this

Function Function description Selection list Default

menu are protected with a password. Only approved personnel can change the parameters in this menu. For more data, speak or write to your local sales office.

4. Master menu

Menu No.

4.0.0 MASTER Factory settings. The settings in this

Function Function description Selection list Default

menu are protected with a password. Only approved personnel can change the parameters in this menu. For more data, speak or write to your local sales office.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 70

OPERATION

6.4 Further information on device configuration

6.4.1 Quick Setup (Commissioning)

Use this procedure to change the tank height, tank type, output function, output range and give the top and bottom measuring limits. Values and parameters that can be changed are shown between the « ... » marks in the illustrations that follow. Push the keypad buttons in the correct sequence:

CAUTION!

Make sure that you do this procedure before you use the device. The settings in this procedure have an effect on the performance of the device.

Procedure

Screen Steps Description

•

[>>>>], [] and [>>>>]. Default screen.

OPTIWAVE 7400-24 C

Enter configuration mode (2.0.0 SUPERVISOR).

•

[>>>>], [^^^^], [], [], [>>>>] and [^^^^]. Enter the password (the default password is

•

2× [>>>>] Push this button to start the quick set-up

•

[>>>>] to change the tank height (H).

•

[>>>>] to change the position of the cursor.

•

[] to decrease the value or [] to increase the value.

•

[^^^^] to confirm.

shown). If it is necessary to change the password, menu item 2.7.5 PASSWORD.

procedure.

The distance from the flange face / thread stop of the tank connection down to the tank bottom. If the tank has a dish-shaped or conical bottom, the tank height is measured to a point on the tank bottom directly below the antenna.

•

[] or [] for the selection of the conditions in which the device is used (Storage, Process, Agitator).

•

[^^^^] to confirm.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

If the surface of the product is flat, select "Storage". If the surface of the product is disturbed, select "Process". If the surface of the product is agitated with vortexes and foam, select "Agitator".

Page 71

OPTIWAVE 7400-24 C

Screen Steps Description

•

[] or [] for the selection of the measurement name (Distance, Level, Conversion, Ullage Conv. or Reflection).

•

[^^^^] to confirm.

•

[] or [] for the selection of the current output range (4-20 mA/3.6E, 4-20, 3.8-

20.5/3.6E, etc.).

•

[^^^^] to confirm.

•

[>>>>] to change Scale 4 mA.

•

[>>>>] to change the position of the cursor.

•

[] to decrease the value or [] to increase the value.

•

[^^^^] to confirm.

OPERATION

The manufacturer sets the output function to “Level” before delivery. If it is necessary to measure volume, ullage volume, mass or ullage mass (Conversion or Ullage Conv.), refer to

the device to measure volume or mass

page 76.

Use this step to give the 4 mA output setting (0% limit) in the tank. Refer to the illustrations that follow. Illustration 1 shows the settings for level. Illustration 2 shows the settings for distance.

How to configure

•

[>>>>] to change Scale 20 mA.

•

[>>>>] to change the position of the cursor.

•

[] to decrease the value or [] to increase the value.

•

[^^^^] to confirm.

•

[] or [] for the selection of the error delay (0 s, 10 s, 20 s, 30 s, 1 mn, 2 mn, 5 mn or 15 mn).

•

[^^^^] to confirm.

Use this step to give the 20 mA output setting (100% limit) in the tank. Refer to the illustrations that follow. Illustration 1 shows the settings for level. Illustration 2 shows the settings for distance.

The time after which the current output changes to an error value. The error value shows that there is a measurement error.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 72

OPERATION

Screen Steps Description

6.4.2 Test

Use this procedure to test the loop current. Values and parameters that can be changed are shown between the « ... » marks in the illustrations that follow. Push the keypad buttons in the correct sequence:

•

[>>>>] to change the tag name.

•

[>>>>] to change the position of the cursor.

•

[] to decrease the alphanumeric value (A, B, ..., 1, 2, ...) or [] to increase the alphanumeric value.

•

[^^^^] to confirm.

•

2× [^^^^] to confirm.

•

[] or [] for the selection of the save option (STORE NO or STORE YES).

•

[^^^^] to confirm.

OPTIWAVE 7400-24 C

The device has an identification code (tag name). The supervisor can enter a maximum of 8 numbers or letters.

Set to STORE YES to save and use the data. Set to STORE NO to cancel the changes to the device settings.

Procedure

Screen Step Description

•

[>>>>], [] and [>>>>].

•

Enter the password: [>>>>], [^^^^], [], [], [>>>>] and [^^^^].

•

[^^^^]

•

[].

•

[>>>>].

Default screen.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 73

OPTIWAVE 7400-24 C

Screen Step Description

•

[>>>>].

•

[] to decrease the value or [] to increase the value.

•

[^^^^] to confirm.

•

[^^^^] 3 times to go back to the default screen.

6.4.3 Protection of the device settings

The menu item PASSWORD (2.7.5) lets you change the supervisor menu password.

How to change the supervisor menu password

• After you enter the supervisor menu, push 6 × [], [>>>>] and 4 × [] to go to the menu item PASSWORD (2.7.5).

• Enter the new 6-character password (push the 4 buttons in any sequence).

• Enter the new 6-character password again.

i If the second entry is the same as the first, the device will go back to the sub-menu list

(2.7).If the second entry is not the same as the first, the device will not go back to the submenu list. Push [^^^^] to start the password sequence again and enter the new 6-character password 2 times.

• Push [^^^^] to go back to the "STORE" screen.

• Push [] or [] to set the screen to STORE YES

i The device will save the new password and go back to normal mode.

This step sets the loop current value. Make a selection from 3.5, 4, 6, 8, 10, 12, 14, 16, 18, 20 or 22 mA.

The loop current goes back to initial value. Default screen.

STORE YES and push [^^^^].

STORE YESSTORE YES

OPERATION

INFORMATION!

Make a note of the password and keep it in a safe place. If you lose the password, please speak or write to your supplier.

How to set the supervisor password to "on" or "off"

The supervisor password is set to "on" by default. If it is necessary to set this function to "off" refer to (2.7.4).

Function description

on page 63, Table 2: Supervisor menu, menu item PSWD YES/NO

6.4.4 HART® network configuration

INFORMATION!

For more data, refer to Networks on page 49

The device uses HART® communication to send information to HART®-compatible equipment. It can operate in either point-to-point or multidrop mode. The device will communicate in multidrop mode if you change the address.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 74

OPERATION

CAUTION!

Make sure that the address for this device is different from others in the multidrop network.

How to change from point-to-point to multidrop mode

• Enter the supervisor menu.

• Push [>>>>], 5 × [] and [>>>>] to go to menu item ADDRESS (2.6.1).

• Push [>>>>] to change the value. Enter a value between 1 and and push [^^^^] to confirm (refer to

the caution before this procedure).

• Push [^^^^] to go back to the "STORE" screen.

• Push [] or [] to set the screen to STORE YES

i The output is set to multidrop mode. The current output is set to 4 mA. This value does not

How to change from multidrop to point-to-point mode

• Enter the supervisor menu.

• Push [>>>>], 5 × [] and [>>>>] to go to menu item ADDRESS (2.6.1).

• Push [>>>>] to change the value. Enter the value 0 and push [^^^^] to confirm.

• Push [^^^^] to go back to the "STORE" screen.

• Push [] or [] to set the screen to STORE YES

i The output is set to point-to-point mode. The current output changes to a range of 4...20 mA

STORE YES and push [^^^^].

STORE YESSTORE YES

change in multidrop mode.

STORE YES and push [^^^^].

STORE YESSTORE YES

or 3.8...20.5 mA (this range is set in menu item RANGE I (2.4.2)).

OPTIWAVE 7400-24 C

6.4.5 Distance measurement

The device displays distance measurements when the output function is set to "Distance".

Menu items related to distance measurement are:

• Output Function (2.4.1)

• Tank Height (2.3.1)

• Blocking Distance (2.3.2)

Use the flange facing as the reference point for the 4 and 20 mA current output settings. The 4 and 20 mA current output settings are the minimum and maximum points of the measurement scale.

You can change the reference point from which distance is measured. Use this menu item:

• Reference Offset (2.3.7)

INFORMATION!

If you move the reference point above the flange, add this value when you give a distance for the 4 and 20 mA current output settings. If you move the reference point below the flange, subtract this value when you give a distance for the 4 and 20 mA current output settings.

CAUTION!

If the distance for 4 mA is set in the blocking distance, the device will not be able to use the full current output range.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 75

OPTIWAVE 7400-24 C

Figure 6-4: Distance measurement

1 Tank Height (2.3.1) 2 Reference Offset (2.3.7) 3 Blocking Distance (2.3.2) 4 4mA Setting (2.4.3) 5 20 mA Setting (2.4.4) 6 Maximum effective measuring range 7 Non-measurement zone

OPERATION

6.4.6 Level measurement

The device displays level measurements when the output function is set to "Level".

Menu items related to level measurement are:

• Output Function (2.4.1)

• Tank Height (2.3.1)

• Blocking Distance (2.3.2)

You can change the reference point from which level is measured. Use this menu item:

• Tank Bottom Offset (2.3.8)

CAUTION!

If the level for the 20 mA is set in the blocking distance, the device will not be able to use the full current output range.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 76

OPERATION

Figure 6-5: Level measurement

1 Tank Bottom Offset (2.3.8) 2 Tank Height (2.3.1) 3 Blocking Distance (2.3.2) 4 Maximum effective measuring range 5 20 mA Setting (2.4.4) 6 4mA Setting (2.4.3) 7 Non-measurement zone

OPTIWAVE 7400-24 C

6.4.7 How to configure the device to measure volume or mass

The device can be configured to measure volume or mass. You can set up a strapping table in the conversion table (2.8.0 CONV. TAB) sub-menu. Each entry is a pair of data (level – volume, level – mass or level – flow rate). The strapping table must have a minimum of 2 entries and a maximum of 30. The reference point for the table is the bottom of the tank (as given in menu item

2.3.1 TANK HEIGHT).

CAUTION!

Enter the data in numerical sequence (strapping table entry number 01, 02 etc.).

How to prepare a strapping table (conversion table)

• Enter the supervisor menu.

• Push [>>>>], 6 × [], [>>>>] and [] to go to 2.7.2 LENGTH UNIT.

• Push [] and [] to find the length unit that you will use in the table.

• Push [^^^^] to go to the sub-menu level.

• Push [] to go to 2.7.3 CONV UNIT (conversion unit)

• Push [] and [] to find the conversion unit that you will use in the table.

• Push [^^^^] to go to the sub-menu level and then [] and [>>>>] to go to the menu item 2.8.1 INPUT

TAB

• Push [>>>>] to make the strapping table. Enter the table entry number (01).

• Enter the length value and push [^^^^].

• Enter the conversion value and push [^^^^].

• Push [>

• Repeat the last 3 steps to complete the table.

• Push [^^^^] to go back to the "STORE" screen.

• Push [] or [] to set the screen to STORE YES

>] to enter the subsequent table entry number (02, 03, ..., 30).

STORE YES and push [^^^^].

STORE YESSTORE YES

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 77

OPTIWAVE 7400-24 C

i The device will store the data for the strapping table and go back to normal mode.

The device will give more accurate volume readings if you give more conversion data in these areas:

• Surfaces with curves.

• Sudden changes in the cross section.

Refer also to the illustration that follows:

OPERATION

Figure 6-6: A plot of points for a volume or mass table

1 2

How to delete a volume or mass table

• Enter the supervisor menu.

• Push 7 × [], [>>>>], and [] to go to 2.8.2 DELETE TABLE.

• Push [>>>>] and [] to set the parameter to YES

• Push [^^^^] to go back to the "STORE" screen.

• Push [] or [] to set the screen to STORE YES

YES.

YESYES

STORE YES and push [^^^^].

STORE YESSTORE YES

i The device will delete the data for the strapping table and go back to normal mode. The

"CONVERSION" and "ULLAGE CONV." data are not available in normal mode.

6.4.8 How to make a filter to remove radar signal interference

If the device measures level in a tank that contains obstructions (agitator, supports, heating pipes etc.), these objects can cause radar signal interference (parasitic signals). You can use the empty spectrum function (menu item 2.1.2) in the Quick Setup menu to make a filter to remove radar signal interference.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 78

OPERATION

INFORMATION!

We recommend that you do an empty spectrum scan when the tank is empty and all the moving parts (agitators etc.) are in operation..

OPTIWAVE 7400-24 C

Figure 6-7: How to make a filter to remove radar signal interference

1 Empty tank before the device uses the empty spectrum scan (with a graph of reflections shown) 2 Partially filled tank before the device uses the empty spectrum scan (with a graph of reflections shown) 3 Partially filled tank after the device uses the empty spectrum scan (with a graph of reflections shown) 4 Agitator blades location 5 Tank bottom signal 6 Agitator blades signals (interference signals) before the device does the empty spectrum scan 7 Bad quality (mixed) signals of the liquid and the agitator blades before the device does the empty spectrum scan 8 Reflected signal if the device uses the data from the empty spectrum scan. The device only uses the reflection on the

surface of the liquid to measure distance.

INFORMATION!

For more data on empty spectrum scans

–

table 2: Supervisor (menu item 2.1.2).

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

You can offset the tank bottom reference point to find the delayed radar reflection. Obey the instructions that follow:

•

• Increase the tank height in menu C.1.2.

• Go to the signal screen

i You will see a graph of reflections.

• Push [>>>>] to move the cursor to the reflection with the largest amplitude (given in dB).

• Make a note of the distance of the reflection measured by the device.

i The distance to the reflection will be the new tank height.

signal screen in operator mode.

signal screensignal screen

• Subtract the distance to the reflection from the true tank height.

• Go to Supervisor > Advanced Setup > Installation Setup > Tank Bottom Offset

Supervisor > Advanced Setup > Installation Setup > Tank Bottom Offset.

Supervisor > Advanced Setup > Installation Setup > Tank Bottom OffsetSupervisor > Advanced Setup > Installation Setup > Tank Bottom Offset

• Type in the difference you calculated as a negative value.

i A negative value will move the reference point above the tank bottom (as given in menu

item C.1.2 Tank height).

• Push [^^^^].

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 79

OPTIWAVE 7400-24 C

• Push [>>>>] and [] (Esc) at the same time to exit to the "save settings" window.

• Select Save

Save and push [^^^^].

SaveSave

i The device will go back to operator mode.

INFORMATION!

For more data on menu items, refer to Function description on page 63

6.5 Status and error messages

6.5.1 Device status (markers)

If the device senses a change in device status, the display screen will show 1 or more status markers at the bottom right side of the display screen. The display screen will also show a symbol that agrees with NAMUR Recommendation NE 107 (Self-Monitoring and Diagnosis of Field Devices) and VDI/VDE 2650. This is shown at the top left side of the display screen. More data is given if you use PACTware™ software with the appropriate DTM on a PC. Error codes and data are shown on the device display screen and in the DTM.

OPERATION

–

table 2: Supervisor.

Menu item 2.2.2 DIAGNOSTIC (Configuration mode / Supervisor menu) supplies more data. This includes internal voltages, the loop current and the reset counter (watchdog timer). You can see this data on the device display screen and in the DTM.

Figure 6-8: Status markers

1 Device status (NAMUR NE 107 symbols) 2 Symbol: Failure 3 Symbol: Function check 4 Symbol: Out of specification 5 Symbol: Maintenance 6 Status marker line (marker 3 is shown) 7 When the status marker is on, a number is shown

Types of error message

NE 107 status Type of

error

Failure Error If an error message is shown in ERROR RECORD (menu item 1.3.1), the current

output goes to the error signal value set in menu item RANGE I (menu item 2.4.2) after the time set in ERROR DELAY (menu item 2.4.5). For more data about menu items.

Out of specification Warning If a warning message is shown, there is no effect on the current output value.

Maintenance

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Description

Page 80

OPERATION

If an "Out of specification" or a "Maintenance" status symbol is shown, refer to menu item 2.2.2 DIAGNOSTIC (Configuration mode / Supervisor menu) for more data.

OPTIWAVE 7400-24 C

For data on errors, error records and error codes, refer to

6.5.2 Error handling

Figure 6-9: Error record data

1 Error code for the error 2 Number of times the error occurred 3 Time since the last error record (2 days, 18 hours, 16 minutes and 43 seconds shown in this example)

Error handling

on page 80.

How to find an error record

• Push [>>>>] to enter configuration mode from normal mode.

• Push [>>>>], 2 × [] and [>>>>] to go to menu item 1.3.1 ERROR RECORD.

• Push 2 × [>>>>] to look at the error list. Push [] or [] for the selection of an error.

i The error record gives the number of times the error occurred and the time since the last

error message.

INFORMATION!

The time since the error occurred is measured in Days (D), Hours (H), Minutes(') and Seconds ("). It only includes the time when the device is energized. The error is saved in the memory of the device when it is de-energized. The counter continues when the device is energized again.

Description of errors and corrective actions

Error

code

Error Message Status marker

shown

Cause Corrective action

Failure (NE 107 status signal)

ERR 100 Device reset 1 The device detected an internal

error (watchdog timer issue).

Record the data that is in menu item 2.2.2 DIAGNOSTIC (Configuration mode / Supervisor menu). Speak to the supplier.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 81

OPTIWAVE 7400-24 C

OPERATION

Error

code

ERR 101 Current Output Drift 1 The current output is not

ERR 102 Temperature out of

ERR 103 Converter memory

ERR 104 Converter Voltage

ERR 200 Internal

ERR 201 Overfill 2 The level is in the blocking

ERR 203 Peak Lost (Level

ERR 204 Sensor no Signal 3 The device's hardware is

ERR 206 Sensor Microwave

Error Message Status marker

shown

1 Hardware error. Replace the device.

1 The ambient temperature is

range

1 The device's hardware is

failure

1 The device's hardware is

failure

1 The device's hardware or

Communication

2 The signal peak is not found

Lost)

1 The device's hardware is

failure

Cause Corrective action

calibrated.

outside the given range. This can cause loss or corruption of data.

defective.

software is defective. The converter cannot transmit signals to or receive signals from the antenna electronics.

distance. There is a risk that the product will overflow and/or cover the antenna.

within the measuring window that filters the signals received by the antenna. The measurement is not correct. The device will automatically increase this window to find the correct signal.

defective.

Speak to the supplier to get the calibration procedure.

Measure the ambient temperature. De-energize the device until the ambient temperature is back in the given range. If the temperature does not stay in the correct range, make sure that there is insulation around the signal converter. If this error occurs 2 times, replace the device.

Replace the signal converter. For more data, refer to

How to turn or remove the signal converter

Replace the signal converter. For more data, refer to

on page 36.

How to turn or remove the signal converter

De-energize the device. Make sure that the signal cable engages in the terminal and the screw connection is tight. Energize the device. If the problem continues, replace the signal converter. For more data, refer to

the signal converter

Use a different procedure to measure the level in the tank. Remove some of the product until the level is below the blocking distance.

If a viscous product touched the antenna:

•

Do a check of the device, tank and the process. Reconfigure the device and record a new empty spectrum. Follow the instructions on page 77. If necessary, speak to the supplier.

Replace the signal converter. For more data, refer to

on page 36.

How to turn or remove

on page 36.

remove the device and clean the antenna, or If the device has a purging option, use the purging system to clean the antenna.

How to turn or remove the signal converter

Replace the signal converter. For more data, refer to

on page 36.

How to turn or remove the signal converter

on page 36.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 82

OPERATION

OPTIWAVE 7400-24 C

Error

code

ERR 207 Sensor Memory

ERR 208 Sensor Voltage

ERR 210 Sensor Not

Error Message Status marker

shown

1 The device's hardware is

failure

3 The device's hardware is

failure

1 The software version of the

compatible

1 Defective wiring.

Cause Corrective action

defective.

sensor is not compatible with the software version of the signal converter.

Out of specification (NE 107 status signal)

ERR 102 Temperature Out of

Range

ERR 201 Overfill 2 The level is in the blocking

ERR 203 Peak Lost 2 The signal peak is not found

1 The ambient temperature is

outside the given range. This can cause loss or corruption of data.

distance. There is a risk that the product will overflow and/or cover the device.

within the measuring window that filters the signals received by the antenna. The measurement is not correct. The device will automatically increase this window to find the correct signal.

Replace the signal converter. For more data, refer to

How to turn or remove the signal converter

Do a check of the power supply at the device terminals. Make sure that voltage values are in the specified limits in menu item 2.2.2 DIAGNOSTIC (Configuration mode / Supervisor menu). If the voltage is correct, replace the signal converter. For more data on how to replace the signal converter, refer to

on page 36.

How to turn

or remove the signal converter

on page 36.

Go to menu 1.1.0 IDENT. in Configuration mode. Record the version numbers of the device software given in menu items

1.1.2, 1.1.3 and 1.1.4. Give this data to the supplier.

Remove some of the product until the level is below the blocking distance.

Do a check of the device, tank and the process and make sure that the data agrees with the device configuration. If necessary, record a new empty spectrum. Follow the instructions on page 77. If necessary, speak to the supplier.

Maintenance (NE 107 status signal)

— Empty Spectrum

Invalid

5 The empty spectrum stored in

the device does not agree with the installation. If you change the device configuration (tank height etc.), this message will be shown. The recorded empty spectrum will not be used by the device while this error message is shown.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Record a new empty spectrum. Follow the instructions on page

77.

Page 83

OPTIWAVE 7400-24 C

OPERATION

Error

code

— Signal Weak 4 The signal amplitude is less

— Signal Strong 4 This error can occur if there is a

— Bad Measurement

— Temperature <-

— Temperature

1 This error message does not have an effect on the current output signal

Error Message Status marker

shown

4 The measurement is incorrect

Quality

3 The process connection or the

35°C/ -31°F

3 The ambient temperature is

>+75°C / +167°F

Cause Corrective action

than the average value. This can occur if the liquid is agitated or if there is foam in the tank. If this error occurs frequently, the device will possibly show the "Peak Lost (Level Lost)" error message.

large change in signal amplitude.

and continues to be incorrect after more than 10 s. This error can occur if the tank contents are immediately below the antenna.

ambient temperature is less than -35°C/ -31°F. This temperature is near to the minimum limit for device operation.

more than +75°C / +167°F. This temperature is near to the maximum limit for device operation.

If this error occurs frequently, it is possible that you must install the device in a stilling well or use a different antenna type.

No corrective action is necessary.

Record the process with the PACTware™ software tool to find the cause of the problem. If necessary, speak to the supplier.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 84

SERVICE

7.1 Periodic maintenance

INFORMATION!

For more data about regular inspections and maintenance procedures for devices with Ex and other approvals, refer to the related supplementary instructions.

7.2 How to clean the top surface of the device

WARNING!

Do not let more than 5 mm / 0.2 possible source of ignition in a potentially explosive atmosphere.

of dust collect on the top surface of the device. This is a

Obey these instructions:

• Keep the thread of the terminal compartment cover clean.

• If dirt collects on the device, clean it.

7.3 How to clean horn antennas under process conditions

If it is possible that there will be build-up, a purging option is available for horn antennas.

OPTIWAVE 7400-24 C

CAUTION!

Purge the antenna at intervals to make sure that the inner surface of the antenna stays clean and the device measures accurately.

For more data, refer to the table that follows:

7.4 How to replace device components

7.4.1 Service warranty

WARNING!

Only approved personnel can do an inspection of the device and repairs. If you find a problem, send the device back to the supplier for inspection and/or repairs.

INFORMATION!

The converter housing (compact or remote version) can be detached from the process connection assembly under process conditions. For more data, refer to How to turn or remove the signal converter on page 36

Servicing by the customer is limited by warranty to:

• The removal and installation of the device.

• Compact version:

Compact version: The removal and installation of the signal converter (with the weather

Compact version:Compact version: protection, if this option is attached). For more data, refer to

converter

• Remote (field) version:

Remote (field) version: The removal and installation of the remote converter and/or the

Remote (field) version:Remote (field) version: antenna housing. For more data, refer to

36.

on page 36.

How to turn or remove the signal

How to turn or remove the signal converter

on page

For more data on how to prepare the device before you send it back, refer to

device to the manufacturer

on page 88.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Returning the

Page 85

OPTIWAVE 7400-24 C

SERVICE

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

INFORMATION!

Complete the 5 procedures that follow in numerical sequence. To get the passwords for the OPTIWAVE 7300 and OPTIWAVE 7400 Service menus, speak to the supplier.

Equipment needed:

• 5 mm Allen wrench (not supplied)

• Slotted-tip screwdriver (not supplied)

• Wrench for housing cover

• Yellow / blue magnet

• OPTIWAVE 7300 C radar level meter

• OPTIWAVE 7400 signal converter (without process connection and antenna)

• Handbooks for all devices

CAUTION!

Make sure that you also record device configuration data. This data includes basic configuration (tank height, blocking distance etc.), output, application, display and strapping table data. You can find this data in the Supervisor menu.

Procedure 1: Record the offset value (OPTIWAVE7300 radar level meter)

1 Energize the device.

i The device is in operation and in normal mode.

2 Push [^^^^] to go to the SERVICE menu.

i The display screen shows the text "Code 2".

3 Give the password for the SERVICE menu. If you do not have the password, speak to the sup-

plier.

4 Push [>>>>], [] and [>>>>] to go to menu item 4.2.1 Offset. Record the offset value. 5 Push 4 × [^^^^]. Push [] or [] for the selection of the save option (Store No, Store Yes or Re-

turn). Set to "Store No" to cancel the changes to the device settings.

6 Push [^^^^] to confirm.

i The device is in normal mode.

7 De-energize the device. 8 Remove the electrical cables. 9 Attach the signal converter cover.

INFORMATION!

If you cannot start the device, record the serial number on the device nameplate and contact the supplier. The supplier will give you the offset value.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 86

SERVICE

OPTIWAVE 7400-24 C

Procedure 2: How to remove the signal converter (OPTIWAVE 7300 C radar level meters)

Figure 7-1: Procedure 2: How to remove the signal converter (OPTIWAVE 7300 C radar level meters)

1 Remove the 4 socket head screws at the bottom of the signal converter with a 5 mm Allen

wrench. Keep the screws for the subsequent procedure.

2 Remove the signal converter from the process connection. Make sure that the gasket stays on

the flange connection.

Procedure 3: How to attach the OPTIWAVE 7400 signal converter

Figure 7-2: Procedure 3: How to attach the OPTIWAVE 7400 signal converter

1 Put the OPTIWAVE 7400 signal converter on the flange connection. Make sure that the signal

converter fully engages in the mating part.

2 Tighten the socket set screw at the bottom of the signal converter with a 5 mm Allen wrench.

Procedure 4: How to set the correct offset value (OPTIWAVE 7400)

1 Energize the device.

i The device is in operation and in normal mode. It will not measure correctly until the new

correction offset value is set in menu item 3.1.4 CORR.OFFSET.

2 Push [>>>>], 2 × [] and [>>>>] to go to the SERVICE menu (3.0.0). 3 Give the password for the SERVICE menu. If you do not have the password, speak to the sup-

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 87

OPTIWAVE 7400-24 C

plier.

4 Push [>>>>] and 3 × [] to go to menu item 3.1.4 CORR.OFFSET (correction offset). 5 Push [>>>>] to change the value. Enter the new correction offset value. For the applicable correc-

tion offset value, refer to the table that follows.

6 Push 4 × [>>>>]. Push [] or [] for the selection of the save option (STORE NO or STORE YES).

Set to "STORE YES" to save and use the data.

7 Push [^^^^] to confirm.

i The device is in normal mode. The device uses the new correction offset value.

CAUTION!

You recorded device configuration data of the OPTIWAVE 7300 level meter before you attached the new signal converter. Make sure that you enter this data in the supervisor menu of the OPTIWAVE 7400.

Procedure 5: Device configuration (OPTIWAVE 7400)

1 For the Quick Setup procedure, refer to

data about device configuration, refer to

Quick Setup (Commissioning)

Operation

on page 56.

SERVICE

on page 70. For more

7.5 Spare parts availability

The manufacturer adheres to the basic principle that functionally adequate spare parts for each device or each important accessory part will be kept available for a period of 3 years after delivery of the last production run for the device.

This regulation only applies to spare parts which are subject to wear and tear under normal operating conditions.

7.6 Availability of services

The manufacturer offers a range of services to support the customer after expiration of the warranty. These include repair, maintenance, technical support and training.

INFORMATION!

For more precise information, please contact your local sales office.

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 88

SERVICE

7.7 Returning the device to the manufacturer

7.7.1 General information

This device has been carefully manufactured and tested. If installed and operated in accordance with these operating instructions, it will rarely present any problems.

CAUTION!

Should you nevertheless need to return a device for inspection or repair, please pay strict attention to the following points:

•

Due to statutory regulations on environmental protection and safeguarding the health and safety of the personnel, the manufacturer may only handle, test and repair returned devices that have been in contact with products without risk to personnel and environment.

•

This means that the manufacturer can only service this device if it is accompanied by the following certificate (see next section) confirming that the device is safe to handle.

CAUTION!

If the device has been operated with toxic, caustic, flammable or water-endangering products, you are kindly requested:

•

to check and ensure, if necessary by rinsing or neutralising, that all cavities are free from such dangerous substances,

•

to enclose a certificate with the device confirming that is safe to handle and stating the product used.

OPTIWAVE 7400-24 C

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 89

OPTIWAVE 7400-24 C

7.7.2 Form (for copying) to accompany a returned device

CAUTION!

To avoid any risk for our service personel, this form has to be accessible from outside of the packaging with the returned device.

Company: Address:

Department: Name:

Tel. no.: Fax no. and/or Email address:

Manufacturer's order no. or serial no.:

The device has been operated with the following medium:

This medium is: radioactive

water-hazardous

toxic

caustic

flammable

We checked that all cavities in the device are free from such substances.

We have flushed out and neutralized all cavities in the device.

SERVICE

We hereby confirm that there is no risk to persons or the environment through any residual media contained in the device when it is returned.

Date: Signature:

Stamp:

7.8 Disposal

CAUTION!

Disposal must be carried out in accordance with legislation applicable in your country.

Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:

Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:Separate collection of WEEE (Waste Electrical and Electronic Equipment) in the European Union:

According to the directive 2012/19/EU, the monitoring and control instruments marked with the WEEE symbol and reaching their end-of-life must not be disposed of with other waste The user must dispose of the WEEE to a designated collection point for the recycling of WEEE or send them back to our local organisation or authorised representative.

must not be disposed of with other waste.

must not be disposed of with other wastemust not be disposed of with other waste

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 90

TECHNICAL DATA

8.1 Measuring principle

A radar signal is emitted via an antenna, reflected from the product surface and received after a time t. The radar principle used is FMCW (Frequency Modulated Continuous Wave).

The FMCW-radar transmits a high frequency signal whose frequency increases linearly during the measurement phase (called the frequency sweep). The signal is emitted, reflected on the measuring surface and received with a time delay, t. Delay time, t=2d/c, where d is the distance to the product surface and c is the speed of light in the gas above the product.

For further signal processing the difference Δf is calculated from the actual transmitted frequency and the received frequency. The difference is directly proportional to the distance. A large frequency difference corresponds to a large distance and vice versa. The frequency difference Δf is transformed via a Fourier transformation (FFT) into a frequency spectrum and then the distance is calculated from the spectrum. The level results from the difference between the tank height and the measured distance.

OPTIWAVE 7400-24 C

Figure 8-1: Measuring principle of FMCW radar

1 Transmitter 2 Mixer 3 Antenna 4 Distance to product surface, where change in frequency is proportional to distance 5 Differential time delay, Δt 6 Differential frequency, Δf 7 Frequency transmitted 8 Frequency received 9 Frequency 10 Time

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 91

OPTIWAVE 7400-24 C

TECHNICAL DATA

8.2 Technical data

INFORMATION!

•

The following data is provided for general applications. If you require data that is more relevant to your specific application, please contact us or your local sales office.

•

Additional information (certificates, special tools, software,...) and complete product documentation can be downloaded free of charge from the website (Downloadcenter).

Measuring system

Measuring principle 2-wire loop-powered level transmitter; K-band (24...26 GHz) FMCW radar

Application range Level measurement of liquids, pastes and slurries

Primary measured value Distance and reflection

Secondary measured value Level, volume, mass and flow rate

Design

Construction The measurement system consists of a measuring sensor (antenna) and a signal

Options Integrated LCD display (-20..+60°C/ -4…+140°F); if the ambient temperature is not

Max. measuring range 80 m / 260 ft

Min. tank height 0.2 m / 8¨ (1 m / 40¨ for hygienic antenna)

Top dead zone Antenna extension length + antenna length + 0.1 m / 4¨ (500 mm / 20¨ for hygienic

Beam angle Metallic Horn (machined) DN 40 (1.5¨): 20°

converter

in these limits, the display switches off automatically

Straight antenna extensions (length 105 mm / 4.1¨) Max. extension length, Drop antenna: 525 mm / 20.7¨; Not available for the Hygienic antenna

Antenna purging system (supplied with a ¼ NPTF connection)

PTFE/PP flange plate protection (for Drop antennas without antenna extensions only)

Distance piece (for process temperature: +150...+200°C / +302...+392°F)

Signal cable for remote housing version (refer to cable properties in "Electrical connection: Remote device version")

Weather protection

Also depends on the dielectric constant of the product and the installation type. Refer also to "Antenna selection".

antenna)

Metallic Horn (machined) DN 50 (2¨): 15°

Metallic Horn (sheet metal) DN 65 (2.5¨): not appicable. This antenna option is for the BM 26 W.

Metallic Horn (sheet metal) DN 80 (3¨): 10°

Metallic Horn (sheet metal) DN 100 (4¨): 8°

Metallic Horn DN150 / 6¨: 6°

Metallic Horn DN200 / 8¨: 4°

Drop DN80 / 3¨: 8°

Drop DN150 / 6¨: 4°

Hygienic DN50 / 2¨: 15°

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 92

TECHNICAL DATA

Display and user interface

Display and user interfaceDisplay and user interface

Display LCD display

128 × 64 pixels in 8-step greyscale with 4-button keypad

Interface languages 4 language pack options (the language is given in the customer order):

1 English, French German and Italian 2 English, French,Spanish and Portuguese 3 English, Chinese (simplified), Japanese and Russian 4 English, Czech, Polish and Turkish

OPTIWAVE 7400-24 C

Measuring accuracy

Resolution 1mm/ 0.04¨

Repeatability ±1mm/ ±0.04¨

Accuracy Standard: ±2mm/ ±0.8¨, when distance <10m/ 33ft;

Reference conditions acc. to EN 61298-1

Reference conditions acc. to EN 61298-1Reference conditions acc. to EN 61298-1

Temperature +15...+25°C / +59...+77°F

Pressure 1013 mbara ±50 mbar / 14.69 psia ±0.73 psi

Relative air humidity 60% ±15%

Target Metal plate in an anechoic chamber

±0.2% of measured distance, when distance > 10 m / 33 ft

Operating conditions

Temperature

TemperatureTemperature

Ambient temperature -40…+80°C/ -40…+176°F

Storage temperature -50…+85°C/ -58…+185°F

Process connection temperature (higher temperature on request)

Ex: see supplementary operating instructions or approval certificates

Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:

Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:Metallic Horn (machined) / Metallic Horn (sheet metal) antenna: Standard: -50…+150°C/ -58…+302°F Option: -50…+200°C/ -58…+392°F (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex: see supplementary operating instructions or approval certificates

Drop antenna (PTFE):

Drop antenna (PTFE):Drop antenna (PTFE):

-50…+150°C/ -58…+302°F (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex: see supplementary operating instructions or approval certificates

Drop antenna (PP):

Drop antenna (PP):Drop antenna (PP):

-40…+100°C/ -40…+212°F (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex: see supplementary operating instructions or approval certificates

Drop antenna (PEEK):

Drop antenna (PEEK):Drop antenna (PEEK):

-20…+200°C/ -4…+392°F (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex: see supplementary operating instructions or approval certificates

Hygienic antenna (PEEK):

Hygienic antenna (PEEK):Hygienic antenna (PEEK):

-20…+150°C/ -4…+302°F (the process connection temperature must agree with the temperature limits of the gasket material. Refer to "Materials" in this table.) Ex: see supplementary operating instructions or approval certificates

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 93

OPTIWAVE 7400-24 C

Pressure

PressurePressure

Process pressure Drop antenna (PP):

Other conditions

Other conditionsOther conditions

Dielectric constant (εr) Direct mode: ≥1.8

Ingress protection IEC 60529: IP 66/67

Maximum rate of change 10 m/min / 32.8 ft/min

Drop antenna (PP):

Drop antenna (PP):Drop antenna (PP):

-1…16 barg / -14.5…232 psig; subject to the process connection used and the flange temperature. For more data, refer to

Drop antenna (PTFE):

Drop antenna (PTFE):Drop antenna (PTFE):

-1…40 barg / -14.5…580 psig; subject to the process connection used and the flange temperature. For more data, refer to

Drop antenna (PEEK):

Drop antenna (PEEK):Drop antenna (PEEK):

-1...40 barg / -14.5…580 psig; subject to the process connection used and the flange temperature

Hygienic antenna (PEEK):

Hygienic antenna (PEEK):Hygienic antenna (PEEK):

-1…10 barg / -14.5…145 psig; subject to the process connection used and the flange temperature

Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:

Metallic Horn (machined) / Metallic Horn (sheet metal) antenna:Metallic Horn (machined) / Metallic Horn (sheet metal) antenna: Standard: -1…40 barg / -14.5…580 psig; Option: -1…100 barg / -14.5…1450 psig; subject to process connection used and flange temperature

TBF mode: ≥1.1 Refer also to "Technical data: Antenna selection".

NEMA 250: NEMA type 4X (housing) and type 6P (antenna)

Guidelines for maximum operating pressure

TECHNICAL DATA

on page 101.

Installation conditions

Process connection size The nominal diameter (DN) should be equal to or larger than the antenna diameter.

If the nominal diameter (DN) is smaller than the antenna, either: – provide the means to adapt the device to a larger process connection on the tank (for example, a plate with a slot), or – use the same process connection, but remove the antenna from the device before installation and fit it from inside the tank.

Process connection position Make sure that there are not any obstructions directly below the process

Dimensions and weights For dimensions and weights data, refer to

connection for the device. For more data, refer to

Dimensions and weights

Installation

on page 23.

on page 103.

Materials

Housing Standard: Polyester-coated aluminium

Option: Stainless steel (1.4404 / 316L)

Wetted parts, including antenna Standard (Metallic Horn antenna): Stainless steel (1.4404 / 316L)

Option for MetallicHorn antenna: HASTELLOY® C-22® (2.4602)

Standard for Drop antenna: PTFE; PP; PEEK

Option for Drop antenna: PP, PTFE or PEEK flange plate protection

Hygienic antenna: PEEK – this material agrees with FDA regulations

Process connection Standard for Metallic Horn and Drop antennas:

Stainless steel (1.4404 / 316L) – a PP, PTFE or PEEK flange plate protection option is also available for the Drop antenna Standard for Hygienic antenna: PEEK

Option: HASTELLOY® C-22® (2.4602) – for Horn antennas only

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 94

TECHNICAL DATA

OPTIWAVE 7400-24 C

Gaskets (and o-rings for the sealed antenna extension option)

Feedthrough Standard: PEI (-50...+200°C / -58...+392°F – max. range. The feedthrough

Cable gland Standard: none

Weather protection (Option) Stainless steel (1.4404 / 316L)

Hygienic antenna:

Hygienic antenna:Hygienic antenna: BioControl®: FKM/FPM (-20…+150°C/ -4…+302°F); EPDM (-20°C…+150°C/ -4…+302°F) SMS, Tri-Clamp®, VARIVENT®, DIN 11851: without

PTFE Drop antenna:

PTFE Drop antenna:PTFE Drop antenna: FKM/FPM (-40…+150°C/ -40…+302°F); Kalrez® 6375 (-20…+150°C/ -4…+302°F); EPDM (-50°C…+150°C/ -58…+302°F)

PP Drop antenna:

PP Drop antenna:PP Drop antenna: FKM/FPM (-40…+100°C/ -40…+212°F); Kalrez® 6375 (-20…+100°C/ -4…+212°F); EPDM (-40°C…+100°C/ -40…+212°F)

PEEK Drop antenna:

PEEK Drop antenna:PEEK Drop antenna: FKM/FPM (-40…+200°C/ -40…+392°F); Kalrez® 6375 (-20…+200°C/ -4…+392°F); EPDM (-40°C…+150°C/ -40…+203°F)

Metallic Horn antenna:

Metallic Horn antenna:Metallic Horn antenna: FKM/FPM (-40…+200°C/ -40…+390°F); Kalrez® 6375 (-20…+200°C/ -4…+390°F); EPDM (-50°C…+150°C/ -58…+300°F)

temperature limits must agree with the temperature limits of the gasket material and antenna type. If the distance piece option is not attached, the maximum temperature is 150°C/ 300°F.)

Option: Metaglas® (-30...+200°C / -22...+392°F – max. range. The feedthrough temperature limits must agree with the temperature limits of the gasket material and antenna type. If the distance piece option is not attached, the maximum temperature is 150°C/ 300°F.)

Options: Plastic (Non-Ex: black, Ex i-approved: blue); nickel-plated brass; stainless steel

Process connections

Thread G1½ (ISO 228); 1½ NPT (ASME B1.20.1)

Flange version

Flange versionFlange version

EN 1092-1 DN40…200 in PN16 or PN40 (Type B1), DN40…150 in PN63 or PN100 (Type B1);

ASME B16.5 1½¨…8¨ in 150 lb RF, 1½¨...6¨ in 300 lb RF, 1½¨...4¨ in 600 lb or 900 lb RF; 1½¨...2¨ in

JIS B2220 40…100A in 10K; others on request

Hygienic BioControl® DN50; Tri-Clamp® 2¨; DIN 11851 DN50; SMS 51; VARIVENT® DN50;

Other Others on request

others on request Optional flange facing: Types C, D, E and F

1500 lb RJ; others on request Optional flange facing: RJ (Ring Joint)

others on request

Electrical connections

Power supply Terminals output

Maximum current 22 mA

Current output load Non-Ex / Ex i:

Cable entry Standard: M20×1.5; Option: ½ NPT

Terminals output – Non-Ex / Ex i:

Terminals output Terminals output 14…30 VDC; min./max. value for an output of 22 mA at the terminals

Terminals output

Terminals output – Ex d:

Terminals output Terminals output 20…36 VDC; min./max. value for an output of 22 mA at the terminals

Non-Ex / Ex i: RL [Ω] ≤ ((U

Non-Ex / Ex i:Non-Ex / Ex i:

supply voltage

Ex d:

Ex d: RL [Ω] ≤ ((U

Ex d:Ex d:

voltage

on page 99.

Non-Ex / Ex i:

Non-Ex / Ex i: Non-Ex / Ex i:

Ex d:

Ex d: Ex d:

-12 V)/22 mA). For more data, refer to

on page 99.

ext

-16 V)/22 mA). For more data, refer to

Minimum power supply

Minimum power

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 95

OPTIWAVE 7400-24 C

Cable gland Standard: none

Options: M20×1.5 (cable diameter: 7…12 mm / 0.28…0.47¨); others are available on request

Cable entry capacity (terminal) 0.5…2.5 mm²

TECHNICAL DATA

Input and output

Current output / HART

Current output / HART®

Current output / HARTCurrent output / HART

Output signal 4…20 mA HART® or 3.8…20.5 mA acc. to NAMUR NE 43

Resolution ±3 µA

Temperature drift Typically 50 ppm/K

Digital temperature drift Max. ±15 mm / 0.6¨ for the full temperature range

Error signal High: 22 mA; Low: 3.6 mA acc. to NAMUR NE 43

PROFIBUS PA

PROFIBUS PAPROFIBUS PA

Type PROFIBUS MBP interface that agrees with IEC 61158-2 with 31.25 kbit/s; voltage

Function blocks 1 × Physical Block, 1 × Level Transducer Block, 4 × Analog Input Function Blocks

Device power supply 9...32 VDC – bus powered; no additional power supply required

Polarity sensitivity No

Basic current 15 mA

FOUNDATION

FOUNDATION™ fieldbus

FOUNDATIONFOUNDATION

Physical layer FOUNDATION™ fieldbus protocol that agrees with IEC 61158-2 and FISCO model

Communication standard H1

ITK version 6.1

Function blocks 1 × Resource Block (RB), 3 × Transducer Blocks (TB), 3 × Analog Input Blocks (AI), 1

Device power supply Not intrinsically safe: 9...32 VDC

Basic current 14 mA

Maximum error current 20.5 mA (= basic current + error current = 14 mA + 6.5 mA)

Polarity sensitivity No

Minimum cycle time 250 ms

Output data Level, distance, ullage conversion, level conversion

Input data None

Error current FDE Typically 0 mA (FDE =Fault Disconnection Electronic)

Link Master function Supported

fieldbus

fieldbus fieldbus

mode (MBP = Manchester Coded, Bus Powered)

x Proportional Integral Derivative Block (PID)

Analog Input Block: 30 ms

Proportional Integral Derivative Block: 40 ms

Intrinsically safe: 9...24 VDC

Approvals and certification

CE This device fulfils the statutory requirements of the EC directives. The

manufacturer certifies successful testing of the product by applying the CE mark.

Vibration resistance IEC 60068-2-6 and EN 50178 (10...57 Hz: 0.075 mm / 57...150 Hz:1g)

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 96

TECHNICAL DATA

Explosion protection

Explosion protectionExplosion protection

ATEX (Ex ia or Ex d) DEKRA xxATEXxxxx X (pending)

ATEX (Ex ic) DEKRA xxATEXxxxx X (pending)

IECEx IECEx DEK xx.xxxx X (pending)

OPTIWAVE 7400-24 C

Compact version

Compact versionCompact version

II 1/2 G, 2 G Ex ia IIC T6...T2 Ga/Gb or Ex ia IIC T6...T2 Gb;

II 1/2 D, 2 D Ex ia IIIC T90°C Da/Db or Ex ia IIIC T90°C Db IP6X;

II 1/2 G, 2 G Ex d ia IIC T6...T2 Ga/Gb or Ex d ia IIC T6...T2 Gb;

II 1/2 D, 2 D Ex ia tb IIIC T90°C Da/Db or Ex ia tb IIIC T90°C Db IP6X

Remote version, transmitter

Remote version, transmitterRemote version, transmitter

II 2 G Ex ia [ia Ga] IIC T6...T4 Gb;

II 2 D Ex ia [ia Da] IIIC T90°C Db;

II 2 G Ex d ia [ia Ga] IIC T6...T4 Gb;

II 2 D Ex ia tb [ia Da] IIIC T90°C Db

Remote version, sensor

Remote version, sensorRemote version, sensor

II 1/2 G Ex ia IIC T6...T2 Ga/Gb

II 1/2 D Ex ia IIIC T90°C Da/Db

II 1/2 G Ex ia IIC T6...T2 Gb

II 1/2 D Ex ia IIIC T90°C Db

Compact version

Compact versionCompact version

II 3 G Ex ic IIC T6...T2 Gc;

II 3 D Ex ic IIIC T90°C Dc

Remote version, transmitter

Remote version, transmitterRemote version, transmitter

II 3 G Ex ic [ic] IIC T6...T4 Gc;

II 3 D Ex ic [ic] IIIC T90°C Dc

Remote version, sensor

Remote version, sensorRemote version, sensor

II 3 G Ex ic IIC T6...T2 Gc;

II 3 D Ex ic IIIC T90°C Dc

Compact version

Compact versionCompact version

Ex ia IIC T6…T2 Ga/Gb or Ex ia IIC T6…T2 Gb or Ex ic IIC T6…T2 Gc;

Ex ia IIIC T90°C Da/Db or Ex ia IIIC T90°C Db or Ex ic IIIC T90°C Dc;

Ex d ia IIC T6...T2 or Ex d ia IIIC T6...T2 Gb;

Ex ia tb IIIC T90°C Da/Db or Ex ia tb IIIC T90°C Db

Remote version, transmitter

Remote version, transmitterRemote version, transmitter

Ex ia [ia Ga] IIC T6…T4 Gb or Ex ic IIC T6…T4 Gc;

Ex ia [ia Da] IIIC T90°C Db or Ex ic [ic] IIIC T90°C Dc;

Ex d ia [ia Ga] IIC T6...T4 Gb;

Ex ia tb [ia Da] IIIC T90°C Db

Remote version, sensor

Remote version, sensorRemote version, sensor

Ex ia IIC T6…T2 Ga/Gb or Ex ia IIC T6…T2 Gb or Ex ic IIC T6…T2 Gc;

Ex ia IIIC T90°C Da/Db or Ex ia IIIC T90°C Db or Ex ic IIIC T90°C Dc

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 97

OPTIWAVE 7400-24 C

TECHNICAL DATA

cFMus - Dual Seal-approved (pending)

NEPSI GYJxxxxxx/xx (pending)

DNV / INMETRO DNV 14.00xx X (pending)

Other standards and approvals

Other standards and approvalsOther standards and approvals

SIL

- only for 4...20 mA HART output

EMC Electromagnetic Compatibility Directive

Radio approvals R & TTE

LVD Agrees with the safety part of the Low-Voltage Directive

NAMUR NAMUR NE 21 Electromagnetic Compatibility (EMC) of Industrial Process and

NEC 500 (Division ratings)

NEC 500 (Division ratings)NEC 500 (Division ratings)

XP-AIS / Cl. I / Div. 1 / Gr. ABCD / T6-T1;

DIP / Cl. II, III / Div. 1 / Gr. EFG / T6-T1;

IS / Cl. I, II, III / Div. 1 / Gr. ABCDEFG / T6-T1;

NI / Cl. I / Div. 2 / Gr. ABCD / T6-T1

NEC 505 (Zone ratings)

NEC 505 (Zone ratings)NEC 505 (Zone ratings)

Cl. I / Zone 0 / AEx d [ia] / IIC / T6-T1;

Cl. I / Zone 0 / AEx ia / IIC / T6-T1;

Cl. I / Zone 2 / AEx nA / IIC / T6-T1;

Zone 20 / AEx ia / IIIC / T90°C

Zone 20 / AEx tb [ia] / IIIC / T90°C

Hazardous (Classified) Locations, indoor/outdoor Type 4X and 6P, IP66, Dual Seal

CEC Section 18 (Zone ratings)

CEC Section 18 (Zone ratings)CEC Section 18 (Zone ratings)

Cl. I, Zone 0, Ex d [ia], IIC, T6-T1;

Cl. I, Zone 0, Ex ia, IIC, T6-T1;

Cl. I, Zone 2, Ex nA, IIC, T6-T1

CEC Section 18 and Annex J (Division ratings)

CEC Section 18 and Annex J (Division ratings)CEC Section 18 and Annex J (Division ratings)

XP-AIS / Cl. I / Div. 1 / Gr. BCD / T6-T1

DIP / Cl. II, III / Div. 1 / Gr. EFG / T6-T1

IS/ Cl.I/ Div.1/ Gr.BCD/ T6-T1

NI / Cl. I / Div. 2 / Gr. ABCD / T6-T1

Ex ia IIC T2~T6 Gb or Ex ia IIC T2~T6 Ga/Gb DIP A20/A21 TA T90°C IP6X

Ex d ia IIC T2~T6 Gb or Ex d ia IIC T2~T6 Ga/Gb DIP A20/A21 TA T90°C IP6X

Ex ia IIC T6…T3 Ga; Ex ia IIIC T70°C...T95°C Da IP6X;

Ex d [ia Ga] IIC T6...T3 Ga/Gb; Ex tb [ia Da] IIIC T70°C...T95°C Db IP6X

Compact version and 4...20 mA HART output only: SIL 2 for high/low demand mode operation

SIL 2-approved devices

R & TTE

R & TTER & TTE Radio Equipment and Telecommunications Terminal Equipment Directive

FCC Rules

FCC RulesFCC Rules Part 15

Industry Canada

Industry CanadaIndustry Canada RSS-211

Laboratory Control Equipment

NAMUR NE 43 Standardization of the Signal Level for the Failure Information of Digital Transmitters

NAMUR NE 53 Software and Hardware of Field Devices and Signal Processing Devices with Digital Electronics

NAMUR NE 107 Self-Monitoring and Diagnosis of Field Devices

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 98

TECHNICAL DATA

OPTIWAVE 7400-24 C

CRN This certification is applicable for all Canadian provinces and territories. For more

Construction code Option: NACE MR 0175 / MR 0103 / ISO 15156

1 The device has a distance piece if it has the flange options that follow: DN100 PN100, DN150 PN63 or PN100, DN200 PN40, 6¨ in 300 lb,

3¨...4¨ in 600 lb, 3¨...4¨ in 900 lb, and 1½¨...2¨ in 900 lb or 1500 lb

2 HASTELLOY® is a registered trademark of Haynes International, Inc. 3 Tri-Clamp® is a registered trademark of Ladish Co., Inc. BioControl® is a registered trademark of Neumo-Ehrenberg-Group.

VARIVENT® is a registered trademark of GEA Tuchenhagen GmbH.

4 Kalrez® is a registered trademark of DuPont Performance Elastomers L.L.C. 5 HART® is a registered trademark of the HART Communication Foundation 6 Only the 3.6 mA error signal is applicable to SIL-approved devices

data, refer to the website.

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 99

OPTIWAVE 7400-24 C

8.3 Minimum power supply voltage

Use these graphs to find the minimum power supply voltage for a given current output load.

Non-Ex and Hazardous Location approved (Ex i / IS) devices

TECHNICAL DATA

Figure 8-2: Minimum power supply voltage for an output of 22 mA at the terminal (Non-Ex and Hazardous Location approval (Ex i / IS))

X: Power supply U [VDC] Y: Current output load R

[Ω]

Hazardous Location (Ex d / XP/NI) approved devices

Figure 8-3: Minimum power supply voltage for an output of 22 mA at the terminal (Hazardous Location approval (Ex d / XP/NI))

X: Power supply U [VDC] Y: Current output load R

[Ω]

www.krohne.com12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

Page 100

TECHNICAL DATA

8.4 Antenna selection

The graphs below show which antenna to select for the application based on:

• D, the measuring range,

• ε

, is the dielectric constant of the product being measured

OPTIWAVE 7400-24 C

Figure 8-4: Selection of antenna for liquid applications (graph of distance in m against εr)

Figure 8-5: Selection of antenna for liquid applications (graph of distance in ft against ε

1 Distance, D [m] 2 Distance, D [ft] 3 Dielectric constant (ε

4 Dielectric constant (ε 5 DN80, DN100, DN150 or DN200 Horn antenna with a still well, or DN150 or DN200 Horn antenna without a still well

6 DN80, DN100, DN150 or DN200 Horn antenna with or without a still well, or DN80 or DN150 Drop antenna without a

still well

7 DN40, DN50, DN80, DN100, DN150 or DN200 Horn antenna with or without a still well, DN80 or DN150 Drop antenna

without a still well or Hygienic antenna

) range for storage/still well applications

) range for process/agitator applications

)

100

www.krohne.com 12/2015 - 4003518001 - MA OPTIWAVE7400-24-R01-en

KROHNE FMCW24G74L, FMCW24G74T Users Manual

Specifications and Main Features

Frequently Asked Questions

User Manual