Rosemount 3308A User Manual

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Page 1

Reference Manual

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

Wireless Guided Wave Radar Level Transmitter

www.rosemount.com

Page 2

PRELIMINARY

Page 3

Reference Manual

NOTICE

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

Rosemount 3308 Wireless Guided Wave Radar

Level Transmitter

Rosemount 3308 Hardware Revision HART® Device Revision Field Communicator Field Device Revision

Read this manual before working with the product. For personal and system safety, and for optimum product performance, make sure you thoroughly understand the contents before installing, using, or maintaining this product.

The United States has two toll-free assistance numbers and one international number.

Customer Central

1-800-999-9307 (7:00 a.m. to 7:00 p.m. CST) North American Response Center

1-800-654-7768 (24 hours a day) Equipment service needs

International

1-952-906-8888

The products described in this document are NOT designed for nuclear-qualified applications.

Using non-nuclear qualified products in applications that require nuclear-qualified hardware or products may cause inaccurate readings.

For information on Rosemount nuclear-qualified products, contact your local Emerson Process Management Sales Representative.

1 1 Dev v1, DD v1

www.rosemount.com

The Rosemount 3308 and all other wireless devices should be installed only after the Smart Wireless Gateway has been installed and is functioning properly. Wireless devices should also be powered up in order of proximity from the Smart Wireless Gateway, beginning with the closest. This will result in a simpler and faster network installation.

Page 4

PRELIMINARY

NOTICE

Failure to follow these installation guidelines could result in death or serious injury:

• Only qualified personnel should perform the installation Explosions could result in death or serious injury: Installation of this transmitter in an explosive environment must be in accordance with the

appropriate local, national, and international standards, codes, and practices. Please review the Product Certifications section for any restrictions associated with a safe installation.

• Before connecting a Field Communicator in an explosive atmosphere, ensure the

instruments are installed in accordance with intrinsically safe or non-incendive field wiring practices

Process leaks may cause harm or result in death:

• Do not remove the transmitter while in operation

• Install device prior to process start-up

• Install and tighten process connectors before applying pressure

Electrical shock can result in death or serious injury:

• Avoid contact with the leads and terminals. High voltage that may be present on

leads can cause electrical shock

This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: This device may not cause harmful interference. This device must accept any interference received, including interference that may cause undesired operation. This device must be installed to ensure a minimum antenna separation distance of 20 cm (8 in.) from all persons.

Power Module Considerations

Each Power Module contains two "C" size primary lithium/thionyl chloride batteries. Each battery contains approximately 2.5 grams of lithium, for a total of 5 grams in each pack. Under normal conditions, the battery materials are self-contained and are not reactive as long as the batteries and the pack integrity are maintained. Care should be taken to prevent thermal, electrical or mechanical damage. Contacts should be protected to prevent premature discharge.

Battery hazards remain when cells are discharged. Power modules should be stored in a clean and dry area. For maximum battery life, storage

temperature should not exceed 30° C. The Power Module may be replaced in a hazardous area. The Power Module has surface

resistivity greater than one gigaohm and must be properly installed in the wireless device enclosure. Care must be taken during transportation to and from the point of installation to prevent electrostatic charge build-up.

Shipping considerations for wireless products

The unit was shipped to you without the Power Module installed. Please remove the Power Module prior to shipping the unit.

Each Power Module contains two "C" size primary lithium/thionyl chloride batteries. Primary lithium batteries are regulated in transportation by the U.S. Department of Transportation, and are also covered by IATA (International Air Transport Association), ICAO (International Civil Aviation Organization), and ARD (European Ground Transportation of Dangerous Goods). It is the responsibility of the shipper to ensure compliance with these or any other local requirements. Please consult current regulations and requirements before shipping

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Reference Manual

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

SECTION 1 Introduction

SECTION 2 Transmitter Overview

SECTION 3 Wireless Configuration

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Manual Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Service Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Product Recycling/Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Rosemount 3308 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

System Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Vessel Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Heating Coils, Agitators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Tank Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Components of the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Probe Selection Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Transition Zones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Service Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Product Recycling/Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Wireless Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Electrical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Power Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Device Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Device Network Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

AMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Field Communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Fast Key Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Remove Power Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

SECTION 4 Installation

www.rosemount.com

Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Before You Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Software write protect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Mounting Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Process Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Installation of Single Lead Probes in Non-metallic Tanks . . . . . . . 4-7

Mounting in Still pipes/by-pass pipes . . . . . . . . . . . . . . . . . . . . . . . 4-8

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Rosemount 3308

PRELIMINARY

Free Space. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Recommended Mounting Position . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Shortening the Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Anchoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Mounting a Centering Disc for Pipe Installations . . . . . . . . . . . . . 4-17

LCD Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

LCD Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Retrofitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

LCD Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Ground the Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

How to Ground the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

SECTION 5 Start-Up/Commissioning

Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Device Network Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

AMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Field Communicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Volume Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Configuration using a Field Communicator . . . . . . . . . . . . . . . . . . . . . 5-8

Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Transmitter Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Measurement Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Tank Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Probe Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Probe Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Product Dielectric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Vapor Dielectric . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Probe Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Maximum Upper Product Thickness. . . . . . . . . . . . . . . . . . . . . . . 5-11

Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Volume Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Transmitter Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Volume Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Tank Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Tank Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Strapping Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Verify Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Verification by LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Field Communicator Verification. . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Verification by Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Verification with AMS Wireless Configurator . . . . . . . . . . . . . . . . 5-15

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

SECTION 6 Operation and Maintenance

TOC-2

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

LCD Screen Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Startup Screen Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Display Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Diagnostic Button Screen Sequence . . . . . . . . . . . . . . . . . . . . . . . 6-3

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PRELIMINARY

Rosemount 3308

Network Connection Status Screens . . . . . . . . . . . . . . . . . . . . . . . 6-5

Diagnostic Button Screen Sequence (continued). . . . . . . . . . . . . . 6-6

Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Device Alert Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Power Module Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

SECTION 7 Service and Troubleshooting

APPENDIX A Reference Data

APPENDIX B Product Certifications

Safety messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Advanced Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

User defined Upper Reference Point . . . . . . . . . . . . . . . . . . . . . . . 7-2

Plotting the Measurement Signal . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Interface Measurements for Semi-Transparent Bottom Products . 7-5

High Level Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Interface Measurements with Fully Immersed Probes . . . . . . . . . . 7-8

Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Level and Distance Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Disturbances at the Top of the Tank . . . . . . . . . . . . . . . . . . . . . . 7-10

Amplitude Threshold Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

Logging Measurement Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

Saving the Transmitter Configuration. . . . . . . . . . . . . . . . . . . . . . 7-15

Removing the Transmitter Head. . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Changing the Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

Diagnostic Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

TOC-3

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Rosemount 3308

PRELIMINARY

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February 2012

TOC-4

Page 9

Reference Manual

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

Section 1 Introduction

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1

Manual Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2

Service Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

Product Recycling/Disposal . . . . . . . . . . . . . . . . . . . . . . .page 1-3

SAFETY MESSAGES Procedures and instructions in this manual may require special preca utions to

ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol ( ). Refer to the safety messages listed at the beginning of each section before performing an operation preceded by this symbol.

Failure to follow these installation guidelines could result in death or serious injury.

• Make sure only qualified personnel perform the installation.

• Use the equipment only as specified in this manual. Failure to do so may impair the protection provided by the equipment.

Explosions could result in death or serious injury.

• Verify that the operating environment of the transmitter is consistent with the appropriate hazardous locations certifications.

• Before connecting a HART make sure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

Electrical shock could cause death or serious injury.

• Use extreme caution when making contact with the leads and terminals.

-based communicator in an explosive atmosphere,

www.rosemount.com

Any substitution of non-recognized parts may jeopardize safety. Rep air, e.g. substitution of components etc., may also jeopardize safety and is under no circumstances allowed.

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PRELIMINARY

Rosemount 3308

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

MANUAL OVERVIEW This manual provides installation, configuration and maintenance information

for the Rosemount 3308 transmitter.

Section 2: Transmitter Overview

• Theory of operation

• Application examples

• System architecture

• Process and vessel characteristics

• Description of the transmitter

Section 3: Wireless Configuration

• Mounting considerations

• Mechanical installation

• Electrical installation

Section 4: Installation

• Mounting considerations

• Mechanical installation

• Electrical installation

Section 5: Start-Up/Commissioning

• Configuration instructions

• Configuration using the HART Communicator

• Configuration using the RCT software

Section 6: Operation and Maintenance

• Display functionality

• Error messages

• Alarm and write protection

Section 7: Service and Troubleshooting

• Advanced configuration

•Service

• Diagnostic messages

Appendix A: Reference Data

• Specifications

• Ordering Information

Appendix B: Product Certifications

• Examples of labels

•EU conformity

• European ATEX Directive information

• FM approvals

• CSA approvals

• Approval drawings

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PRELIMINARY

Rosemount 3308

SERVICE SUPPORT To expedite the return process outside of the United States, contact the

nearest Emerson Process Management representative. Within the United States, call the Emerson Process Management Instrument

and Valves Response Center using the 1-800-654-RSMT (7768) toll-free number. This center, available 24 hours a day, will assist you with any needed information or materials.

The center will ask for product model and serial numbers, and will provide a Return Material Authorization (RMA) number. The center will also ask for the process material to which the product was last exposed.

Individuals who handle products exposed to a hazardous substance can avoid injury if they are informed of and understand the hazard. If the product being returned was exposed to a hazardous substance as defined by Occupational Safety and Health Administration (OSHA), a copy of the required Material Safety Data Sheet (MSDS) for each hazardous substance identified must be included with the returned goods.

Emerson Process Management Instrument and Valves Response Center representatives will explain the additional information and procedures necessary to return goods exposed to hazardous substances.

PRODUCT RECYCLING/DISPOSAL

Recycling of equipment and packaging should be taken into consideration and disposed of in accordance with local and national legislation/regulations.

1-3

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00809-XXXX-4811, Rev AA

February 2012

1-4

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PRELIMINARY

Rosemount 3308

Section 2 Transmitter Overview

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-1

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2-3

Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2-3

System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-6

Vessel Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2-9

Probe Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 2-11

Service Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-13

Product Recycling/Disposal . . . . . . . . . . . . . . . . . . . . . . .page 2-13

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to

ensure the safety of the personnel performing the operations. Information that potentially raises safety issues is indicated by a warning symbol ( ). Please refer to the following safety messages before performing an operation preceded by this symbol.

Warnings

Failure to follow these installation guidelines could result in death or serious injury:

• Only qualified personnel should perform the installation

Explosions could result in death or serious injury:

Installation of this transmitter in an explosive environment must be in accordance with the appropriate local, national, and international standards, codes, and practices. Please review the Product Certifications section for any restrictions associated with a safe installation.

• Before connecting a Field Communicator in an explosive atmosphere, make sure that the instruments are installed in accordance with intrinsically safe or non-incendive field wiring practices

Process leaks may cause harm or result in death:

• Do not remove the transmitter while in operation

• Install the transmitter prior to process start-up

Electrical shock could cause death or serious injury:

• Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock

www.rosemount.com

Page 14

PRELIMINARY

Rosemount 3308

Reference Manual

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February 2012

ROSEMOUNT 3308 Features of the Rosemount 3308 Wireless Guided Wave Radar include:

• An installation-ready solution that provides a variety of mounting options, transmitter configurations, and switches

• Flexibility to meet your most demanding applications

• Wireless output with >99% data reliability delivers rich HART® data, protected by industry leading security

• Single or dual switch input with logic for limit contact and opposing contact applications

• The integral LCD conveniently displays the primary switch input and diagnostics of the transmitter

• Simple and easy installation practices currently being used for robust installations

Smart Wireless delivers innovative wireless solutions for level measurement and overall transmitter performance

• Self-organizing network delivers information rich data with >99% data reliability and establishes a highly stable network

• Smart Wireless capabilities extend the full benefits of PlantWeb previously inaccessible temperature measurement locations

• Emerson SmartPower™ Solutions provide an intrinsically safe Power Module, allowing field replacements without remo vin g th e tra n sm itte r from the process, keeping personnel safe, and reducing mainte nance costs

• Emerson Process Management's layered approach to wireless network security ensures that data transmissions are secure

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Time

Reference Pulse

Level

Interface Level

Signal Amplitude

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PRELIMINARY

Rosemount 3308

THEORY OF OPERATION The Rosemount 3308 Wireless Guided Wave Radar Level Transmitter is a

continuous level transmitter that is based on Time Domain Reflectometry (TDR) principles. Low power nano-second-pulses are guided along a probe immersed in the process media. When a pulse reaches the surface of the material it is measuring, part of the energy is r eflected back to the transmitter, and the time difference between the generated and reflected pulse is converted into a distance from which the total level or interface level is calculated (see below).

The reflectivity of the product is a key parameter for measurement performance. A high dielectric constant of the media gives better reflection and a longer measuring range. A calm surface gives better reflection than a turbulent surface.

Figure 2-1. Measurement Principle.

APPLICATION EXAMPLES

The Rosemount 3308 transmitter is suited for aggregate (total) level measurements on most liquids, semi-liquids, and liquid/liquid interfaces.

Guided microwave technology offers highest reliability and precision which ensure measurements are virtually unaffected by temperature, pressure, vapor gas mixtures, density, turbulence, bubbling/boiling, low level, varying dielectric media, pH, and viscosity.

Guided wave radar technology in combination with advanced signal processing make the Rosemount 3308 transmitter suitable fo r a wide range of applications.

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Rosemount 3308

PRELIMINARY

Boiling conditions with vapor and turbulence

For these applications the Coaxial probe is particularly suitable.

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Bridle applications

The Rosemount 3308 transmitter is well suited for bridle applications, such as distillation columns.

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PRELIMINARY

Rosemount 3308

Separator tanks

The Rosemount 3308 measures both level and inte rface level.

Underground tanks

The Rosemount 3308 transmitter is a good choice for underground tanks since it is installed on the tank top with the radar pulse concentrated near the probe. It can be equipped with probes that are unaf fecte d by high and narrow openings or nearby objects.

Small ammonia, NGL and LPG tanks

Guided wave radar technology is a good choice for reliable measurements in small ammonia, NGL and LPG tanks.

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Rosemount 3308

Field Communicator

Smart Wireless Gateway

Rosemount 3308 Wireless Guided Wave Radar Transmitter

AMS Suite

Integral Display

PRELIMINARY

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February 2012

SYSTEM ARCHITECTURE

Figure 2-2. System architecture.

The Rosemount 3308 transmitter is battery powered with wireless communication which means the unit works completely independent.

By using the optional HART Tri-loop, it is possib le to convert the HAR T signal to up to three additional 4-20 mA analog signals.

With the HART protocol it is possible to use multidrop configuration. In this case communication is restricted to digital since current is fixed to the 4 mA minimum value.

The transmitter can be connected to display Ros em o un t 75 1 Fi eld Signal Indicator or it can be equipped with an integral display.

The transmitter can easily be configured by using the AMS suite software or by using a Field Communicator. A PC with the Radar Configuration Tool software can also be used for configuration.

For HART communication a minimum load resistance o f 250  within the loop is required.

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Level Interface Level

Level = Interface Level

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PRELIMINARY

Rosemount 3308

Interface Rosemount 3308 is the ideal choice for measuring the interface of oil and

water, or other liqui ds with significant dielectric differences.

Figure 2-3. Interface measurement with a Rosemount 3308

All probes can be used for measuring interfaces. The coaxial probe is the preferred choice for clean liquids and when the bridle is not fully immersed . In applications with a fully immersed probe, the twin lead probes are recommended for nozzle installations, and the rigid single lead probe is best for bridle mounting.

For measuring the interface level, the transmitter uses the residual wave of the first reflection. Part of the wave, which was not reflected at the upper product surface, continues until it is reflected at the lower product surface. The speed of this wave depends fully on the dielectric constant of the upper product.

If interface is to be measured, the following criteria have to be fulfilled:

• The dielectric constant of the upper product must be kn own. The Radar Configuration Tools software has a built-in dielectric constant calculator to assist users in determining the dielectric constant of the upper product.

• The dielectric constant of the upper product must have a lower dielectric constant than the lower product in order to have a distinct reflection.

• The difference between the dielectric constants for the two products must be larger than 10.

• Maximum dielectric constant for the upper product is 10 for the coaxial probe and 5 for twin lead probes.

• The upper product thickness must be larger than 8 inches (0.2 m) for the flexible twin lead probe and 4 inches (0.1 m) for the rigid twin lead and coaxial probes in order to distinguish the echoes of the two liquids.

The maximum allowable upper product thickness/measuring range is primarily determined by the dielectric constants of the two liquids.

Target applications include interfaces between oil/oil-like and water/water-like liquids. For such applications the upper product dielectric constant is low (<3) and the lower product dielectric constant is high (>20), and the maximum measuring range is only limited by the length of the coaxial and rigid twin lead probes.

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Rosemount 3308

PRELIMINARY

Emulsion Layers

Sometimes there is an emulsion layer (mix of the products) between the two products which, depending on its characteristics, will affect interface measurements.

Please consult factory for guidelines on how to handle emulsion layers.

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V E SSEL CHARACTERISTICS

Heating Coils, Agitators The Rosemount 3308 transmitter is relatively insensitive to objects in the tank

since the radar signal is transmitted along a probe. Avoid physical contact between probes and agitators as well as applications

with strong fluid movement unless the probe is anchored. If the probe can move within 1 ft (30 cm) away from any object, such as an agitator, during operation then probe tie-down is recommended.

In order to stabilize the probe for side forces, it is possible to hang a weight at the probe end (flexible probes only) or fix/guide the probe to the tank bottom.

Tank Shape The guided wave radar transmitter is insensitive to the tank shape. Since the

radar signal travels along a probe, the shape of the tank bottom has virtually no effect on the measurement performance. The transmitter handles flat or dish-bottom tanks equally well.

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Rosemount 3308

Radar Electronics

Probe

Dual Compartment Housing

Threaded Process Connections

Flanged Process Connections

BSP (G)

NPT

Coaxial

ible

Rigid

ngle

Lead

Flexib

e Sing

e Lead

ith weight

PRELIMINARY

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February 2012

COMPONENTS OF THE TRANSMITTER

Figure 2-4. Transmitter components.

The Rosemount 3308 transmitter has an aluminum transmitter hou sing which contains advanced electronics for signal processing.

The radar electronics produces an electromagnetic pulse which is guided by the probe.

There are different probe types available for various applications: Flexible Twin Lead, Rigid Single Lead, Flexible Single Lead, and Coaxial.

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Rosemount 3308

PROBE SELECTION GUIDE

Use the following guidelines to choose appropriate probe for your Rosemount 3308 transmitter:

Table 2-1. Probe selection guide. G=Good, NR=Not Recommended, AD=Application Dependent (consult factory)

Coaxial Rigid Twin Lead Flexible Twin Lead Rigid Single Lead Flexible Single Lead

Measurements

Level GGGGG Interface (liquid/liquid) G

Changing density G GGGG Changing dielectric Wide pH variationsGGGGG Pressure changes G GGGG Temperature changes G GGGG Condensing vapors G GGGG Bubbling/boiling surfaces G G AD G AD Foam (mechanical

avoidance) Foam (top of foam

measurement) Foam (foam and liquid

measurement) Clean liquids GGGGG Liquid with dielectric<2.5 G AD AD AD Coating liquids NR NR NR AD AD Viscous liquids NR AD AD AD G Crystallizing liquids NR NR NR AD AD Solids/Powders NR NR NR AD AD Fibrous liquids NR NR NR G G

Probe is close (<12 in./30 cm) to tank wall / disturbing objects

High turbulence G G AD G AD Turbulent conditions

causing breaking forces Long and small mounting

nozzles (diameter <6 in./15 cm, height>diameter + 4 in./10 cm)

Probe might touch nozzle / disturbing object

Liquid or vapor spray might touch probe

Disturbing EMC environment in tank

(1) Not in fully immersed applications. (2) For overall level applications a changing dielectric has no effect on the measurement. For interface measurements a changing diele ct r ic of the top fluid

will degrade the accuracy of the interface measurement.

(3) OK when installed in pipe.

(2)

(1)

Process Medium Characteristics

GGGGG

AD NR NR NR NR

NR AD AD AD AD

NR AD AD NR NR

Tank Environment Considerations

GADADNRNR

NR NR AD NR AD

G ADNRNRNR

G NRNRNRNR

AD NR NR NR NR

G G NR NR

(3)

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PRELIMINARY

4mA

20mA

Upper Transition Zone

Lower Transition Zone

Range 0 -100 %

Maximum Measuring Range

Upper Reference Point

Rosemount 3308

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February 2012

Transition Zones The measuring range depends on probe type and properties of the product.

The Upper Transition Zone is the minimum measurement di stance between the upper reference point and the product surface. The Upper Transition Zone varies between 4 - 20 in. (0.1 and 0.5 m) depending on probe type and product.

At the end of the probe the measuring range is reduced by the Lower Trans ition Zone. The Lower Transition Zone also varies depending on probe type and product.

Figure 2-5 illustrates how the measuring range is related to the Transition Zones:

Figure 2-5. Transition Zones

Table 2-2. Transition Zones for different probe types

Dielectric Constant

Upper Transition Zone

Lower Transition Zone

2 TO BE ADDED 80 2 80

NOTE

The measurement accuracy is reduced in the Transition Zones. It may even be impossible to make any measurements at all in those regions. Therefore, the alarm limit points should be configured outside the Transition Zones.

2-12

Coaxial Probe Flexible Twin

Lead Probe

Rigid Single Lead Probe

Flexible Single Lead Probe

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PRELIMINARY

Rosemount 3308

SERVICE SUPPORT To expedite the return process outside of North America, contact your

Emerson Process Management representative, Within the United States, call the Emerson Process Management Response

Center toll-free number 1 800 654 7768. The center, which is available 24 hours a day, will assist you with any needed information or materials.

Individuals who handle products exposed to a hazardous substance can avoid injury if they are informed of, and understand, the hazard. If the product being returned was exposed to a hazardous substance as defined by OSHA, a copy of the required Material Safety Data Sheet (MSDS) for each hazardous substance identified must be included with the returned goods.

PRODUCT RECYCLING/DISPOSAL

SHIPPING CONSIDERATIONS FOR WIRELESS PRODUCTS (LITHIUM BATTERIES)

The unit was shipped with the Power Module not installed. Please remove the Power Module from the unit before shipping.

Each Power Module contains two "C" size primary lithium/thionyl chloride batteries. Primary lithium batteries (charged or discharged) are regulated during transportation by the U.S. Department of T ransport ation. They are also covered by IA TA (International Air Transport Association), ICAO (International Civil Aviation Organization), and ARD (European Ground Transportation of Dangerous Goods). It is the responsibility of the shipper to ensure compliance with these or any other local requirements. Consult current regulations and requirements before shipping.

Recycling of equipment and packaging should be taken into consideration and disposed of in accordance with local and national legislation/regulations.

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Rosemount 3308

Section 3 Wireless Configuration

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1

Wireless Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-2

Power Module Installation . . . . . . . . . . . . . . . . . . . . . . . . .page 3-5

Device Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 3-6

Device Network Configuration . . . . . . . . . . . . . . . . . . . . . page 3-6

Remove Power Module . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-7

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to

Warnings

Failure to follow these installation guidelines could result in death or serious injury:

• Only qualified personnel should perform the installation

Explosions could result in death or serious injury:

• Before connecting a Field Communicator in an explosive atmosphere, make sure that the instruments are installed in accordance with intrinsically safe or non-incendive field wiring practices

Process leaks may cause harm or result in death:

• Do not remove the transmitter while in operation

• Install the transmitter prior to process start-up

Electrical shock could cause death or serious injury:

• Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock

Probe Connection; warnings associated with probe connections

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February 2012

WIRELESS CONSIDERATIONS

General The Wireless Guided Wave Radar Tr ansmitter has the capability to measure

level, distance, interface level or volume. The Rosemount 3308 converts the measurement data into mapped variables and diagnostic information that are transmitted through a wireless signal.

Power Up Sequence

The Smart Wireless Gateway (Gateway) should be installed and functioning properly before any wireless field devices are powered. Install the Black Power Module, SmartPower™ Solutions model number 701PBKKF into the 3308 transmitter to power the device. Wireless devices should also be powered up in order of proximity from the Gateway, beginning with the closest. This will result in a simpler and faster network installation. Enable Active Advertising on the Gateway to ensure that new devices join the network faster. For more information, see the Gateway Product Manual (Document Number 00809-0200-4420).

Antenna Position

Figure 3-1. Recommended Antenna Position

The antenna should be positioned vertically, either straight up or straight down. It should be approximately 3 ft (1 m) from any large structure, building, or conductive surface to allow for clear communication to other devices.

Conduit Entries

Unit comes with both conduit entries sealed with conduit plugs using an approved thread sealant.

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Conduit Entry

P/N 00753-9200-2410

00809-XXXX-4811, Rev AA February 2012

Figure 3-2. Conduit Entries

PRELIMINARY

Rosemount 3308

Field Communicator Connections

The Power Module needs to be installed in the device for the Fiel d Communicator to interface with the Rosemount 3308 transmitter. This transmitter uses the Black Power Module; please order model number 701PBKKF. Field communication with this device requires a HART-based Field Communicator using the correct Rosemount 3308 Wireless DD. Field communicator connections are located on the terminal block. The correct DD for the available protocol should be selected. Refer to Figure 3-3 for instructions on connecting the Field Communicator to the Rosemount 3308.

Figure 3-3. Field Communicator Connection Diagram

Mechanical Location

When choosing an installation location and position, take into accoun t access to the transmitter for easy Power Module replacement. For b est performance, the antenna should be vertical with space between objects in a parallel metal plane, such as a pipe or metal framework, as the pipes or framework may adversely affect the antenna's performance.

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Electrical The Rosemount 3308 Wireless Guided Wave Radar transmitter is

self-powered. The Black Power Module contains two "C" size primary lithium/thionyl chloride batteries. Each battery contains approximately 2.5 grams of lithium, for a total of 5 grams in each Power Module. Under normal conditions, the battery materials are self-contained and are not reactive as long as the batteries and the Power Module are maintained. Care should be taken to prevent thermal, electrical, or mechanical damage. Contacts should be protected to prevent premature discharge.

Use caution when handling the power module; it may be damaged if dropped from heights in excess of 20 ft (6.10 m).

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TO BE UPDATED

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Rosemount 3308

POWER MODULE INSTALLATION

Figure 3-4. Black Power Module Installation

NOTE

Wireless devices should be powered up in order of proximity from the Smart Wireless Gateway, beginning with the closest device to the Smart Wireless Gateway. This will result in a simpler and faster network installation.

1. Install the Power Module.

NOTE

Use caution when handling the power module, it may be damaged if dropped from heights in excess of 20 ft (6 m).

Figure 3-5. Possible Antenna Rotations

2. Close the housing cover and tighten to site or safety specifications. Always ensure a proper seal by installing the electronics housing covers so that metal touches metal, but do not over tighten.

3. Position the antenna such that it is vertical, either straight up or straight down, as shown in Figure 3-5. The antenna should be approximatel y 3 ft (1 m) from any large structures or buildings to allow clear communication to other devices.

NOTE

Possible antenna rotation shown. Antenna rota tion allows for best installation practices in any configuration.

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DEVICE CONFIGURATION

DEVICE NETWORK CONFIGURATION

Remove the Power Module-side housing cover to expose the terminal block and HART communication terminals, then connect the Power Module to power the unit for configuration.

The Rosemount 3308 transmitter will receive any HART communication from a handheld Field Communicator or AMS Wireless Configurator. When using a Field Communicator, any configuration changes must be sent to the transmitter using the Send key (F2). AMS Wireless Configurator configuration changes are implemented when the Apply button is clicked.

Wireless Configurator

AMS

AMS Wireless Configurator is capable of connecting to devices dir ectly, using a HART modem, or remotely using the Gateway.

When configuring on the bench with a HART modem, double click the device icon, then choose the Configure/Setup tab (or right click and select Configure/Setup). Configure the device settings using the Direct Connection menu.

When configuring with the Gateway, double click the device icon then choose the Configure/Setup tab (or right click an d select Con figur e/Setup ). Conf igure the device settings using the Wireless Connection menu.

To communicate with the Gateway, and ultimately the host system, the transmitter must be configured to communicate with the wireless network.

Using a Field Communicator or AMS Wireless Configurator, enter the Network ID and Join Key so they match the Network ID and Join Key of the Gateway and the other devices in the network. If the Network ID and Join Key are the same as the Gateway, the transmitter will not communicate with the network. The Network ID and Join Key may be obtained from the Gateway on the Setup>Network>Settings page on the Gateway's integrated web server, shown in Figure 3-6.

Figure 3-6. Gateway Network Settings

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COMM terminals

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PRELIMINARY

Rosemount 3308

AMS Right click on the Rosemount 3308 transmitter and select Configure. When

the menu opens, select Join Device to Network and complete the method to enter the Network ID and Join Key.

Field Communicator Connect the field communicator leads to the COMM terminals on th e terminal

block as shown in Figure 3-7.

Figure 3-7. Terminal Block with COMM terminals

P/N 00753-9200-2410

The Network ID and Join Key may be changed in the wireless device on a Field Communicator by using the Fast Key Sequence shown in Table 3-1.

Table 3-1. Rosemount 3308 Fast Key Sequence

Function Key Sequence Menu Items Join Device to Network 2, 1, 2 Network ID, Set Join Key

Fast Key Sequences Table 3-1 lists the fast key sequence for common transmitter functions.

Table 3-2. Rosemount 3308 Fast Key Sequence

REMOVE POWER MODULE

Function Key Sequence Menu Items

Device Information 2, 2, 4 Manufacturer, Model, Final Assembly Number,

Universal, Field Device, Software, Hardware Descriptor, Message, Date, Model Number, I, II, III, SI Unit Restriction, Country

Guided Setup 2, 1 Join Device to Network, Configure Update Rate,

Configure Sensor, Calibrate Sensor, Configure Display, Configure Process Alarms

Manual Setup 2, 2 Wireless, Process Sensor, Percent of Range,

Device Temperature, Device Information, Device Configure, Other

Wireless 2, 2, 1 Network ID, Join Device to Network, Configure

Update Rate, Configure Broadcast Power Level, Power Mode, Power Source

If doing a bench top configuration, after the sensor and network have been configured, remove the Power Module and replace the transm itter co ver. The Power Module should be inserted only when the device is ready for commissioning.

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Rosemount 3308

Section 4 Installation

Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 4-1

Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 4-3

Before Yo u Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-4

Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . .page 4-5

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . .page 4-11

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

ensure the safety of the personnel performing the operations. Information that raises potential safety issues is indicated by a warning symbol ( ). Please refer to the following safety messages before performing an operation preceded by this symbol.

Failure to follow safe installation and servicing guidelines could result in death or serious injury:

Make sure only qualified personnel perform the installation. Use the equipment only as specified in this manual. Failure to do so may impair the

protection provided by the equipment. Do not perform any service other than those contained in this manual unless you are

qualified.

Explosions could result in death or serious injury:

Verify that the operating environment of the transmitter is consistent with the appropriate hazardous locations certifications.

Before connecting a HART-based communicator in an explosive atmosphere, make sure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices.

In an Explosion-proof/Flameproof installation, do not remove the transmitter cover when power is applied to the unit.

Process leaks could result in death or serious injury:

Make sure that the transmitter is handled carefully. If the Process Seal is damaged, gas might escape from the tank if the transmitter head is removed from the probe.

• Do not remove the transmitter while in operation

• Install device prior to process start-up

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Rosemount 3308

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February 2012

Electrical shock can result in death or serious injury:

• Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.

Probes covered with plastic and/or with plastic discs may generate an ignition-capable level of electrostatic charge under certain extreme conditions. Therefore, when the probe is used in a potentially explosive atmosphere, appropriate measures must be taken to prevent electrostatic discharge.

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Review Installation

Considerations

(see page 4-5)

Mount the transmitter

(see page 4-11)

Make sure covers and cable/conduit

connections are

tight.

Power Up the

transmitter

Configure the

transmitter

(see page 5-1)

Verify measurements

Set the Write

Protection Switch

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PRELIMINARY

Rosemount 3308

INSTALLATION PROCEDURE

Follow these steps for proper installation:

4-3

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Reference Manual

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February 2012

BEFORE YOU INSTALL Electronic boards are electrostatically sensitive. Failure to observe proper

handling precautions for static-sensitive components can result in damage to the electronic components. Do not remove the electronic boards from the Rosemount 3308 transmitter.

NOTE

To ensure long life for your radar transmitter, and to comply with hazardous location installation requirements, tighten covers on both sides of the electronics housing.

Software write protect Security write protection prevents unauthorized access to configuration data

through a Field Communicator or AMS Suite software.

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Mounting on tank roof Mounting in threaded pipe

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PRELIMINARY

Rosemount 3308

MOUNTING CONSIDERATIONS

Before installing the Rosemount 3308 transmitter, consider specific mounting requirements, vessel characteristics and process characteristics.

Process Connection The Rosemount 3308 transmitter has a threaded connection for easy

mounting on the tank roof. It can also be mounted on a nozzle by using different flanges.

Threaded Connection

Figure 4-1. Mounting on tank roof using threaded connection

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Rosemount 3308

D2 = min. diameter with Upper Null Zone adjustment

UNZ

D1 = min. diameter

Figure 4-2. Mounting in nozzles

PRELIMINARY

Flange Connection on Nozzles

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February 2012

The transmitter can be mounted in nozzles by using an appropr iate flange. It is recommended that the nozzle size is within the dimensions given in Table 4-1. For small nozzles it may be necessary to increase the Upper Null Zone (UNZ) in order to reduce the measuring range in the upper part of the tank. By setting the UNZ equal to the nozzle height, the impact on the measurement due to interfering echoes from the nozzle will be reduced to a minimum. See also section “Disturbances at the Top of the Tank“ on page 7-10. Amplitude Threshold adjustments may also be needed in this case.

NOTE

Except for the Coaxial Probe the probe must not be in co ntact with the n ozzle.

Table 4-1. Minimum nozzle diameter D1/D2 and maximum nozzle height H (inch/mm).

Rigid Twin Lead Flexible Twin Lead Coaxial Single Lead Flexible Single

(1)

(2)

(5)

(1) Upper Null Zone=0. (2) Upper Null Zone>0. (3) Process connection 1.5 inch. (4) Process connection 1 inch. (5) Recommended maximum nozzle height. For coaxial probes there is no limitation on nozzle height. (6) Nozzle diameter. (7) For tall nozzles the Long Stud version is recommended (option code LS).

4/100 4/100 > Probe diameter 6/150 6/150

2/50 2/50 > Probe diameter 2/50

4/100 + D

(6)

4/100 + D

(6)

- 4/100 + D

1.5/38

(3)

(4)

(6)

2/50

4/100 + D

(6) (7)

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Metal flange Ø > 2 in. (DN50)

Metal sheet Ø > 8 in. (200 mm)

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PRELIMINARY

Rosemount 3308

Installation of Single Lead Probes in Non-metallic Tanks

Figure 4-3. Mounting in non-metallic tanks.

For optimal single lead probe performance in non-metallic tanks the probe must be mounted with a metal flange, or screwed in to a metal sheet (d>8 in./200 mm) if the threaded version is used.

Avoid introducing EMI environment near the tank. Installation in metallic tank is recommended.

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Rosemount 3308

Rigid Single

Flexible Single

Flexible Twin

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Mounting in Still pipes/by-pass pipes

Figure 4-4. Mounting in Still Pipes.

In order to prevent the probe from contacting the bridle wall when replacing displacers or installing in pipes, centering discs are available for the Rigid Single, Flexible Single and Flexible Twin Lead probes. The disc is attache d to the end of the probe and thus keeps the probe centered in the bridle. The discs are available in stainless steel and PTFE. See also “Mounting a Centering Disc for Pipe Installations“ on page 4-17.

Note! It is not recommended that flexible probes are installed in by-pass pipes.

Rigid Single Lead.

Pipe diameter Ø2 in. (50 mm). Inlet pipe diameter N<Ø. L12 in. (300 mm).

Flexible Single Lead.

Pipe diameter Ø4 in. (100 mm). Note! For smaller pipes please consult factory.

Make sure that the probe is at the center of the Still pipe by, for example, using a centering disc.

Note! It is not recommended that flexible probes are installed in by-pass pipes.

Flexible Twin Lead.

Pipe diameter Ø4 in. (100 mm). Note! For smaller pipes please consult factory.

The center rod must be placed more than

0.6 in. (15 mm) away from the pipe wall. The probe may under no circumstances get into contact with the pipe wall. It is recommended that a centering disc is used.

4-8

Coaxial Lead.

Pipe diameter Ø1.5 in. (38 mm).

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Rosemount 3308

Free Space For easy access to the transmitter make sure that it is mounted with sufficient

service space. For maximum measurement performance the transmitter should not be mounted too close to the tank wall or other objects in the tank.

If the probe is mounted close to a wall, nozzle or other tank obstruction noise might appear in the level signal. Therefore the following minimum clearance, according to the table below, must be maintained:

Figure 4-5. Free Space Requirement

Table 4-2. Recommended minimum free space L to tank wall or other objects in the tank.

Table 4-3. Recommended minimum free space L to tank wall or other objects in the tank for Single Lead probes.

Coaxial Flexible Twin

0 in. (0 mm) 4 in. (100 mm)

Rigid Single/Flexible Single

4 in. (100 mm) Smooth metal wall. 12 in. (300 mm)

Disturbing objects such as pipes and beams, concrete or plastic tank walls, rugged metal tank walls.

4-9

Page 44

Rosemount 3308

Inlet pipe

Heating coils

Agitator

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

Recommended Mounting Position

Figure 4-6. Mounting Position

When finding an appropriate mounting position for the transmitter the conditions of the tank must be carefully considered. The transmitter should be mounted so that the influence of disturbi ng ob jec ts is reduced to a minim u m.

In case of turbulence the probe may need to be anchored to the bottom. See “Mechanical Installation“ on page 4-11 for more information.

The following guidelines should be considered when mounting the transmitter:

• Do not mount close to inlet pipes.

• Do not mount close to agitators. If the probe can move to within 12 in. (30 cm) away from an agitator a probe tie-down is recommended.

• If the probe tends to sway due to turbulent conditions in the tank, the probe should be anchored to the tank bottom.

• Avoid mounting close to heating coils.

• Make sure that the nozzle does not extend into the tank.

• Make sure that the probe does not come into contact with the nozzle or other objects in the tank.

• Position the probe such that it is subject to a minimum of lateral force.

NOTE!

Violent fluid movements causing high sideway forces may break rigid probes.

4-10

Page 45

Reference Manual

Sealant on threads or gasket (for BSP/G threads)

Nut

Tank connection

Probe

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

MECHANICAL INSTALLATION

Figure 4-7. Threaded tank connection.

Mount the transmitter with flange on a nozzle on top of the tank. The transmitter can also be mounted on a threaded connection. Make sure only qualified personnel perform the installation.

NOTE

If you need to remove the transmitter head from the probe, make sure that the Process Seal is carefully protected from dust and water. See “Service“ on page 7-9 for further information.

1. For tank connections with BSP/G threads, place a gasket on top of the tank flange, or use a sealant on the threads of the tank connection.

2. Lower the transmitter and probe into the tank.

3. Screw the adapter into the process connection.

4. Loosen the nut that connects the transmitter housing to the probe slightly.

5. Rotate the transmitter housing so the cable entries/display face the desired direction.

6. Tighten the nut.

7. Continue with the Power Module Installation.

NOTE!

For adapters with NPT threads, pressure-tight joints require a sealant.

4-11

Page 46

Rosemount 3308

Transmitter head

Gasket

Flange

Tank flange

Nut

Probe

Bolts

Transmitter head

Gasket

Flange

Tank flange

Probe

Flange nut

Bolts

Nut

Figure 4-8. T an k connection with flange.

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

1. Place a gasket on top of the tank flange.

2. Lower the transmitter and probe with flange into the tank.

3. Tighten the bolts.

4. Loosen the nut that connects the transmitter housing to the probe slightly.

5. Rot ate the transmitter housing so the cable entries/display face the desired direction.

6. Tighten the nut.

7. Continue with the Power Module Installation.

NOTE!

PTFE covered probes must be handled carefully to prevent damage to the coating.

Figure 4-9. T an k connection with loose flange (“plate design”).

The transmitter is delivered with head, flange and probe assembled into one unit. If, for some reason, these parts have been disassembled mount the transmitter as described below:

1. Place a gasket on top of the tank flange.

2. Mount the flange on the probe and tighten the flange nut.

3. Mount the transmitter head.

4. Lower the transmitter and probe with flange into the tank.

5. Tighten the bolts.

6. Loosen the nut that connects the transmitter housing to the probe slightly.

7. Rot ate the transmitter housing so the cable entries/display face the desired direction.

8. Tighten the nut.

9. Continue with the Power Module Installation.

4-12

Page 47

Reference Manual

Allen screws

Minimum:

1.6 in. (40 mm)

Spacer

Cut

PRELIMINARY

00809-XXXX-4811, Rev AA February 2012

Shortening the Probe Flexible Twin/Single Lead

Rosemount 3308

1. Mark off the required probe length. Add at least 1.6 in. (40 mm) to the required probe length to be inserted into the weight.

2. Loosen the Allen screws.

3. Slide the weight upwards as much as needed in order to cut the probe.

4. Cut the probe. The minimum probe length is 3.33 ft (1 m). If necessary, remove a spacer to make room for the weight.

5. Slide the weight down to the required cable length.

6. Tighten the screws.

7. Update the transmitter configuration to the new probe length, see “Probe Length“ on page 5-9.

If the weight was removed from the cables when cutting, make sure that at least 1.6 in. (40 mm) of the cable is inserted when the weight is replaced.

Rigid Single Lead

1. Cut the Single Lead probe to the desired length.

2. Update the transm itter configuration to the new prob e length, see “Probe Length“ on page 5-9.

NOTE!

The PTFE covered probes must not be cut in field.

4-13

Page 48

Rosemount 3308

Centering piece

Maximum shortening

23.6 in. (600 mm)

L > 49 in. (1250 mm)

Minimum probe length

15.7 in. (400 mm)

L  49 in. (1250 mm)

PRELIMINARY

Coaxial

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

To cut a coax ial pr ob e do the following:

1. Insert the centering piece. (The centering piece is

delivered from factory and should be used to prevent the spacers centering the r od from coming loose).

2. Cut the tube to the desired length.

3. Move the centering piece.

4. Cut the rod inside the tube. Make sure that the rod is fixed with the centering piece while cutting.

• Pipes longer than 49 in. (1250 mm) can be shortened by as much as

23.6 in. (600 mm).

• Pipes shorter than 49 in. (1250 mm) can be cut as long as the remaining length is not less than

15.7 in. (400 mm).

4-14

5. Update the transmitter configuration to the new probe length, see “Probe Length“ on page 5-9.

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Reference Manual

Weight with internal threads M8x14

Ring

Magnet

1.1 in. (28 mm)

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

Anchoring In turbulent tanks it may be necessary to fix the probe. Depending on the

probe type different methods can be used to guide the probe to the tank bottom. This may be needed in order to prevent the probe from hitting the tank wall or other objects in the tank, as well as preventing a pro be from breaking.

Flexible Twin/Single Lead probe with weight and ring.

A ring (customer supplied) can be attached to the weight in a threaded (M8x14) hole at the end of the weight. Attach the ring to a suitable anchoring point.

Flexible Twin/Single Lead probe with weight and magnet.

A magnet (customer supplied) can be fastened in a threaded (M8x14) hole at the end of the weight. The probe can then be guided by placing a suitable metal plate beneath the magnet.

Coaxial probe fixed to the tank wall. The coaxial probe can be guided to

the tank wall by fixtures fastened to the tank wall. Fixtures are customer supplied. Make sure the probe can move freely due to thermal expansion without getting stuck in the fixture.

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Rosemount 3308

Drain

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

Coaxial probe. The Coaxial probe can be guided by

a tube welded on the tank bottom. Tubes are customer supplied. Make sure that the probe can move freely in order to handle thermal expansion.

Flexible Single Lead probe with weight.

TO BE ADDED

Flexible Single Lead probe. The probe rope itself can be used for

anchoring. Pull the probe rope through a suitable anchoring point, e.g. a welded eye and fasten it with two clamps.

The length of the loop will add to the transition zone.The location of the clamps will determine the beginning of the transition zone. The probe length should be configured as the length from the underside of the flange to the top clamp. See section “Transition Zones“ on page 2-12 for further information on Transition Zones.

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Reference Manual

Centering disc

Weight

Bolt

Tab washer

Bushing

Split pin

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

Mounting a Centering Disc for Pipe Installations

Flexible Single/Twin Lead probe

1. Mount the centering disc at the end of the weight.

2. Make sure that the tab washer is properly inserted in the centering disc.

3. Fasten the centering disc with the bolt.

4. Secure the bolt by folding the tab washer.

Rigid Single Lead probe

1. Mount the centering disc at the end of the probe.

2. Fasten the disc by inserting the split pin through the bushing and the probe.

3. Secure the split pin.

NOTE!

Centering discs may not be used with PTFE covered probes.

4-17

Page 52

PRELIMINARY

LCD Display

LCD Cover

LCD Pins

LCD Display

LCD Cover

LCD Pins

Rosemount 3308

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

LCD DISPLAY NOTE!

Do not remove the instrument cover in explosive environments when the circuit is live.

General If the LCD display is ordered in the transmitter model number (option code

M5), it will be shipped attached to the transmitter.

NOTE

If ordering spare parts for a replacement LCD, only use Rosemount Wireless LCD Part Number: 00753-9004-0002. This will provide a replacement LCD/electronics board, and LCD pin connector.

LCD Rotation The optional LCD display can be rotated in 90-degree increments by

squeezing the two black tabs on opposite sides of the display, gently pulling out the display, rotating to the desired orientation, and snapping back the display into place. Refer to Figure 4-10 for a graphical illustration.

Figure 4-10. LCD Rotation

If the LCD pins are inadvertently removed from the interface board, carefully re-insert the pins before snapping the LCD display back into place.

Retrofitting If an existing transmitter with no display (flat electronics cover) is to be

retrofitted with a new display , order spare p art number 00753- 9004-0001. This kit contains an extended aluminum cover with an LCD viewing window, an LCD/electronics board, and an LCD pin connector . The co ntents of this kit are shown in Figure 4-11.

Figure 4-11. LCD Display Retrofit Kit

To install the LCD display, remove the electronics-side flat cover. Insert the four-pin connector into the LCD display, rotate the LCD to the desired

LCD Configuration How to configure parameters displayed, update rate, always off, etc.

orientation, and gently snap into place. Replace the flat cover wi th the LCD cover and tighten. Refer back to Figure 4-10 for a graphical illustration.

4-18

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PRELIMINARY

Rosemount 3308

GROUND THE TRANSMITTER

How to Ground the Device

The Rosemount 3308 Wireless Guided W ave Radar transmitter operate s with the housing grounded or floating. Floating systems can cause extra noise that may affect many types of readout devices. If the signal appears noisy or erratic, grounding at a single point may solve the problem. Grounding of the electronics enclosure should be done in accordance with local and national installation codes. Grounding is accomplished through the process connection using the internal or external case grounding terminal.

Procedure to be added.

NOTE

Always use facility recommended wiring practices.

4-19

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Rosemount 3308

PRELIMINARY

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February 2012

4-20

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PRELIMINARY

00809-XXXX-4811, Rev AA February 2012

Rosemount 3308

Section 5 Start-Up/Commissioning

Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 5-1

Device Network Configuration . . . . . . . . . . . . . . . . . . . . . page 5-2

Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . page 5-3

Configuration using a Field Communicator . . . . . . . . . . .page 5-8

Verify Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-14

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

Failure to follow safe installation and servicing guidelines could result in death or serious injury:

Make sure only qualified personnel perform the installation. Use the equipment only as specified in this manual. Failure to do so may impair the

protection provided by the equipment. Do not perform any service other than those contained in this manual unless you are

qualified.

Explosions could result in death or serious injury:

• Before connecting a Field Communicator in an explosive atmosphere, ensure the instruments are installed in accordance with intrinsically safe or non-incendive field wiring practices.

• In an Explosion-proof/Flameproof installation, do not remove the transmitter cover when power is applied to the unit.

Process leaks may cause harm or result in death:

• Do not remove the transmitter while in operation

• Install device prior to process start-up

Electrical shock could cause death or serious injury:

• Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.

www.rosemount.com

Page 56

Rosemount 3308

COMM terminals

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

DEVICE NETWORK CONFIGURATION

Figure 5-1. Gateway Network Settings

To communicate with the Gateway, and ultimately the host system, the transmitter must be configured to communicate with the wireless network.

AMS Right click on the Rosemount 3308 transmitter and select Configure. When

the menu opens, select Join Device to Network and complete the method to enter the Network ID and Join Key.

Field Communicator Connect the field communicator leads to the COMM terminals on th e terminal

block as shown in Figure 5-2. Figure 5-2. Terminal Block with COMM terminals

P/N 00753-9200-2410

The Network ID and Join Key may be changed in the wireless device on a

Field Communicator by using the Fast Key Sequence shown in Table 5-1. Table 5-1. Rosemount 3308

Fast Key Sequence

Function Key Sequence Menu Items

Join Device to Network 2, 1, 2 Network ID, Set Join Key

5-2

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Reference Manual

LRV

URV

Tank Height

Upper Null Zone

Product Level

Upper Reference Point

Lower Reference Point

Interface Level

Probe Length

NPT BSP (G) FLANGE

Upper Reference Point

Adapter

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

CONFIGURATION PARAMETERS

The Rosemount 3308 transmitter can be configured for level, volume,

interface level, and interface distance measurements.

The Rosemount 3308 transmitter can be pre-configured according to the

ordering specifications in the Configuration Data Sheet.

Basic Configuration The basic transmitter configuration includes setting the tank geometry

parameters. For interface measurements the dielectric constant of the top

liquid must also be given. For some applications with heavy vapor, the vapor

dielectric must be given as well. Figure 5-3. Tank Geometry

Figure 5-4. Upper Reference Point

For the different tank co nnections the Up per Reference Point is loca ted at the

underside of the threaded adapter or at the underside of the welde d flange, as

illustrated in Figure 5-4:

5-3

Page 58

Rosemount 3308

PRELIMINARY

Tank Height

The Tank Height is the distance from the Upper Reference Point to the bottom

of the tank. The transmitter m easures the d ist a nce to the prod uct surface a nd

subtracts this value from the Tank Height to determine the level.

Probe Length

The probe length is the distance betwee n the Upper Reference Point and the

end of the probe. If a weight is used at the end of the probe it shall not be

included.

This parameter is pre-configured at factory. It must be changed if the probe is

shortened.

Probe Type

The transmitter is designed to optimize measurement performance for each

probe type.

This parameter is pre-configured at factor y. This value needs to be changed if

the probe type is changed.

Dielectric Constant of Upper Product

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

For interface measurements the dielectric constant of the upper product is

essential in order to obtain good accuracy. See section “Interface” on

page 2-7 for further information on dielectric constants.

If the dielectric constant of the lower product is significantly smaller than the

dielectric constant of water, you may need to make special adjustments. See

section “Interface Measurements for Semi-Transparent Bottom Products” on

page 7-5 for further information.

For level measurements the Upper Product Dielectric parameter corresponds

to the actual dielectric constant of the product in the tank. Normally this

parameter does not need to be changed even if the actual dielectric constant

of the product deviates from the Upper Product Dielectric parameter value.

However, for so me products measurement performance can be optimize d by

setting the proper product dielectric constant.

Dielectric Constant of Vapor

In some applications there is heavy vapor above the prod uct surface having a

significant influence on the level measurement. In such cases the vapor

dielectric can be entered to compensate for this effect.

The default value is equal to 1 which corresponds to th e die lectricity of

vacuum. Normally this value does not need to be changed since the effect on

measurement performance is very small for most vapors.

5-4

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PRELIMINARY

Rosemount 3308

Upper Null Zone

This parameter should only be chang ed if there are measuremen t problems in

the upper part of the tank. Such problems may occur if there are disturbing

objects close to the probe. By setting the Upper Null Zone, the measuring

range is reduced. See Section 7: Disturbances at the Top of the Tank for

further information.

NOTE

Measurements are not performed within the Upper Null Zone.

Probe angle

If the transmitter is not mounted vertically, the angle from the vertical position

must be given.

5-5

Page 60

PRELIMINARY

Actual tank bottom may look like this.

Using only 3 strapping points results in a level-to-volume profile that is more angular than the actual shape.

Using 6 of the points at the bottom of the tank yields a level-to-volume profile that is similar to the actual tank bottom.

Rosemount 3308

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

Volume Configuration For volume calculations you can choose one of the standard tank shapes or

the strapping option. Choose None if volume calculation is not used.

Tank Type

You can choose one of the following options:

• Strap table

• Vertical Cylinder

• Horizontal Cylinder

• Vertical Bullet

• Horizontal Bullet

• Sphere

•None

Strapping Table

Use a strapping table if a standard tank type does not provide sufficient

accuracy . Use most o f the strapp ing point s in region s where th e ta nk shape is

non-linear. A maximum of 10 points can be added to the strapping table.

Figure 5-5. Strapping points

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Diameter

Height

Diameter

Height

Diameter

Height

Diameter

Height

Diameter

00809-XXXX-4811, Rev AA February 2012

Figure 5-6. Standard tank shapes

PRELIMINARY

Rosemount 3308

Standard Tank Shapes

Vertical Cylinder

Vertical Cylinder t anks are sp ecified by Diameter and Height.

Horizontal Cylinder

Horizontal Cylinders are specified by Diameter and Height.

Vertical Bullet

Vertical Bullet tanks are specified by Diameter and Height. The volume calculation model for this tank type assumes that the radius of the bullet end is equal to the Diameter/2.

Horizontal Bullet

Horizontal Bullets are specified by Diameter and Height. The volume calculation model for this tank type assumes that the radius of the bullet end is equal to the Diameter/2.

Sphere

Spherical tanks are specified by Diameter.

5-7

Page 62

Rosemount 3308

Function Key

Navigation Keys

Alphanumeric Keys

Backlight adjustment key

Tab Key

Enter Key

Replace with 475

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

CONFIGURATION USING A FIELD COMMUNICATOR

Figure 5-7. The Field Communicator.

This section describes how to configure the Rosemount 3308 transmitter by

using a Field Communicator. A HART Communicator may also be used.

For information on all the capabilities, refer to the Field Communicator

Product Manual (Document No. 00809-0100-4276).

5-8

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PRELIMINARY

Rosemount 3308

BASIC CONFIGURATION This section describes the various HART commands used to co nfigure the

Rosemount 3308 transmitter for level measurements. The tr ansmitter outpu ts

a digital HART wireless signal.

Transmitter Variables

HART Comm

TO BE

ADDED

Measurement Units

HART Comm

TO BE

ADDED

Tank Height

HART Comm

TO BE

ADDED

Probe Length

HART Comm

TO BE

ADDED

Y ou may assign up to fou r transmitter variables. T yp ically, the primary variable

(PV) is configured to be Aggregate Level, Interface Level or Volume.

Set transmitter units for level and temperature.

The Tank Height is the distance from the Upper Reference Point to the bottom

of the tank (see Figure 5-3 on page 5-3). When setting the Tank Height, keep

in mind that this value is used for all level measurements performed by the

Rosemount 3308 transmitter.

The Tank Height must be set in linear (level) units, such as feet or meters,

regardless of primary variable assignment.

The probe length is the distance from the Upper Reference Point to the end of

the probe, see Figure 5-3. If the probe is anchored to a weight do not include

the height of the weight. This parameter is pre-configured at factory. The

Probe Length needs to be changed if, for example, the probe is shortened.

5-9

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Rosemount 3308

Probe Type

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

HART Comm

TO BE

ADDED

Product Dielectric

HART Comm

TO BE

ADDED

The transmitter automatically makes an initial calibration based on the type of

probe that is used. This parameter is pre-configured at factory and only needs

to be set if the probe is changed to another type. Choose one of the fo llowing

options:

• Flexible Twin

•Coaxial

• Rigid Single, Rigid Single PTFE

• Flexible Single, Flexible Single PTFE

For interface measurements the dielectric constant of the upper product is

essential for calculating the interface level and the upper product thickness.

By default the Product Dielectric parameter is about 2.

If the dielectric constant of the lower product is significantly smaller than the

dielectric constant of water, you may need to make special adjustments. See

section “Interface Measurements for Semi-Transparent Bottom Products” on

page 7-5 for further information.The dielectric constant of the product is used

for setting the appropriate signal amplitude thresholds, see Section 7: Ser vice

and Troubleshooting for more information on amplitude threshold settings.

Normally this parameter does not need to be changed for level

measurements. However, for some products measurement performance can

be optimized by setting the proper product dielectric constant.

The AMS Suite software includes a Dielectric Chart which lists the dielectric

constants of a wide range of products. AMS also includes a tool which allows

you to calculate dielectric constants based on measurements of the Upper

Product Thickness.

Va por Dielectric

HART Comm

5-10

TO BE

ADDED

In some applications there is heavy vapor above the prod uct surface having a

significant influence on the level measurement. In such cases the vapor

dielectric can be entered to compensate for this effect.

The default value is equal to 1 which corresponds to the dielectric constant of

vacuum. Normally this value does not need to be changed since the effect on

measurement performance is very small for most vapors.

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Measurement Mode

PRELIMINARY

Rosemount 3308

HART Comm

TO BE

ADDED

Table 5-2. Measurement Mode

Probe Angle

HART Comm

TO BE

ADDED

Normally the Measurement Mode does not need to be changed. The

transmitter is pre-configured according to the specified model:

Model Measurement Mode

(1)

3308 Level, Level and Interface

(1) Default setting

, Interface Immersed probe

Interface Immersed Probe is used for applications where the probe is fully

immersed in liquid. In this mode the transmitter ignores the upper product

level. See Section 7: Interface Measurements with Fully Immer sed Probes for

more information.

NOTE!

Only use Interface Immersed Probe for applications where interface is

measured for a fully immersed probe.

Enter the angle between the probe and the vertical line. The default value is

equal to zero. Do not change this value if the transmitter is mounted with the

probe along the vertical line (which is normally the case).

Maximum Upper Product Thickness

HART Comm

TO BE

ADDED

Display

HART Comm

TO BE

ADDED

For interface measurements the Maximum Upper Product Thickness

parameter may be used in special cases when the dielectric constant of the

upper product is relatively high. By setting this parameter you can avoid that

interface measurements are getting out of range.

Choose variabels to be displayed.

5-11

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Rosemount 3308

Upper Range Value (URV)

Upper Transition Zone

Product Level

Interface Level

Lower Transition Zone

Lower Range Value (LRV)

Upper Reference Point

Range 0-100 %

Figure 5-8. Range Values

PRELIMINARY

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February 2012

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VOLUME

CONFIGURATION Transmitter Variables

PRELIMINARY

Rosemount 3308

HART Comm

Volume Units

HART Comm

Tank Type

HART Comm

TO BE

ADDED

TO BE

ADDED

TO BE

ADDED

Select the Volume option in o rder to configure the transmitter for volume

measurements.

Choose one of the following units:

• Gallons

•Liters

• Imperial Gallons

• Cubic Meters

•Barrels

•Cubic Yards

• Cubic Feet

• Cubic Inch

Choose a standard tank shape, or select the strapping option. Standard

shapes are: Vertical Cylinder, Horizontal Cylinder, Vertical Bullet, Horizontal

Bullet or Sphere. (If Primary Variable is Level choose None for Tank Type).

If your tank does not correspond to any of the above t ank shapes, select S t rap

Table.

Tank Dimensions

HART Comm

Strapping Table

HART Comm

TO BE

ADDED

TO BE

ADDED

If a standard tank type was chosen, enter the diameter and height of the t ank.

See “Volume Configuration” on page 5-6 for information on how to specify

tank dimensions.

If tank type Strapping Table was chosen, enter how many entries you will use

and the actual level and volume points. You can enter from 2 to 10 points. The

strapping points must be entered such that the first point corresponds to the

lowest level, and the last point corresponds to the topmost level of the tank.

5-13

Page 68

PRELIMINARY

N E T w K

S R C H N G

Searching for Network

Joining Network

Connected with Limited Bandwidth

Connected

Reference Manual

00809-XXXX-4811, Rev AA

Rosemount 3308

February 2012

V E RIFY OPERATION Operation can be verified in four ways, further described in this section:

1. At the device with the local display

2. Using the Field Communicator

3. In the Smart Wireless Gateway's integrated web interface

4. Using the AMS® Suite Wireless Configurator or AMS Device Manager

If the Rosemount 3308 was configured with the Network ID and Join Key, and

sufficient time has passed, the transmitter will be connected to the network. If

Network ID and Join Key were not configured, please see “Troubleshooting”

on page 5-16.

Verification by LCD To verify operation at the device with the local display , confirm that the display

is showing a value. If the device is connected, the default LCD configuration

displays the primary variable (PV) value at the configured update rate.

illustrates the display messages that may be shown in the various stages of

the device's network connection. Refer to Section 6: Operation and

Maintenance for a full listing of error codes and other LCD messages. Press

the Diagnostic button to display the T AG, Device ID, Network ID, Network Join

Status, and Device Status screens.

Figure 5-9. Network Connection LCD Display Messages

Field Communicator Verification

n e t w k

N E G O T

n e t w k

L I M - O P

n e t w k

O K

For HART Wireless transmitter communication, a Rosemount 3308 DD is

required. To obtain the latest DD, visit the Emerson Process Management

Easy Upgrade site at:

http://www2.emersonprocess.com/en-US/documentation/deviceinstallkits.

Connect the Field Communicator as shown on in Figure 5-2 on page 5-2 of

this document. Do not remove the Power Module. Removing the Power

Module may cause the device to drop off the network.

NOTE

In order to communicate with a Field Communicator, the device must be

Enter the Field Communicator menu and use the Fast Key Sequence in

Table 5-3 to navigate to the Communications menu items. Select the

Communication Status parameter to verify operation. The remaining

Communications menu items provide additional network information.

5-14

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PRELIMINARY

Rosemount 3308

Table 5-3. Rosemount 3308 Communications Fast Key Sequence

Function Key Sequence Menu Items

Communications 3, 3 Join Status, Communication Status,

Join Mode, Number of Available Neighbors, Number of Advertisements Heard, Number of Join Attempts

Verification by Gateway Using the Smart Wireless Gateway's integrated web interface, navigate to the

Explorer>Status page as shown in Figure 5-10. This page shows whether

the device has joined the network and if it is communicating properly. Locate

the device in question and verify all status indicators are good ( gr een ). It may

take several minutes for the device to join the network and be seen on the

Gateway's integrated web interface.

Figure 5-10. Smart Wireless Gateway Explorer Status Page

Verification with AMS Wireless Configurator

Figure 5-11. AMS Wireless Configurator Screen

When the device has joined the network, it will appear in the Wireless

Configurator window as illustrated in Figure 5-11. For HART Wireless

transmitter communication, a 3308A DD is required . To obtain the latest DD,

visit the Emerson Process Management Easy Upgrade site at:

http://www2.emersonprocess.com/en-US/documentation/deviceinstallkits.

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February 2012

Troubleshooting If the device is not joined to the network after power up, verify the correct

configuration of the Network ID and Join Key, and that Active Advertising has

been enabled on the Smart Wireless Gateway. The Network ID and Join Key

in the device must match the Network ID and Join Key of the Gatewa y.

Reference the instructions given on page 5- 2 fo r inform a tio n on con fig ur ing

the Network ID and Join Key of the Rosemount 3308.

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Rosemount 3308

Section 6 Operation and Maintenance

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-1

LCD Screen Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-2

Display Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-3

Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6-8

Power Module Replacement . . . . . . . . . . . . . . . . . . . . . . . page 6-10

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to

ensure the safety of the personnel performing the operations. Information that

potentially raises safety issues is indicated by a warning symbol ( ). Please

refer to the following safety messages before performing an operation

preceded by this symbol.

Failure to follow safe installation and servicing guidelines could result in death or serious injury:

Make sure only qualified personnel perform the installation. Use the equipment only as specified in this manual. Failure to do so may impair the

protection provided by the equipment. Do not perform any service other than those contained in this manual unless you are

qualified.

Explosions could result in death or serious injury:

• Before connecting a Field Communicator in an explosive atmosphere, ensure the instruments are installed in accordance with intrinsically safe or non-incendive field wiring practices.

• In an Explosion-proof/Flameproof installation, do not remove the transmitter cover when power is applied to the unit.

Process leaks may cause harm or result in death:

• Do not remove the transmitter while in operation

• Install device prior to process start-up

Electrical shock could cause death or serious injury:

• Avoid contact with the leads and terminals. High voltage that may be present on leads can cause electrical shock.

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X X X X X

X X X X x x x

x x x x x x

702

W I r e l s

A b c d e

f g h

s n s r1

True

LCD SCREEN MESSAGES

PRELIMINARY

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February 2012

Startup Screen Sequence

The following screens will display when the power module is first connected to the Rosemount 3308.

All Segments On: used to visually determine if there are any bad segments on the LCD

Device Identification: used to determine Device Type.

Device Information - Tag: user entered tag which is 8 characters long - will not display if all characters are blank

PV Screen - Measurement of mapped Primary

Variable (default is XX)

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True

D E V

2 5. 2 5

d e g c

S u p l y

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PRELIMINARY

Rosemount 3308

SV Screen - Measurement of mapped Second

Variable (default is XX)

Electronics Temperature

Supply Voltage

DISPLAY OPERATION During steady state operation, the LCD gives a periodic display of

user-chosen variables at the configured wireless upda te rate. These variables can be chosen from a list of XX: Level, …………………

The LCD Display will display the variables at the configured update rate, but no faster than XXX. Refer to page XX for instructions on configuring the

display.

Diagnostic Button Screen Sequence

Detailed diagnostic information can be obt ained by removing the display cover of the Rosemount 3308 transmitter, and momentarily depressing the "DIAG" button. The LCD will display the diagnostic screens as shown below. Press the Diagnostic button to display the TAG, Device ID, Network ID, Network Join Status, and Device Status screens.

The following five screens will display when the device is operating properly and the Diagnostic Button has been pressed.

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A b c d e

f g h

i d - X X

X X X X X X

n e t w k

13 0 5

I D

n e t w k

O K

S u p l y

7. 2 1

v o l t s

PRELIMINARY

Diagnostic Button Screen 1: Tag

Diagnostic Button Screen 2: Device Identification - used to determine Device ID

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Diagnostic Button Screen 3: Network ID

Diagnostic Button Screen 4: the device has

joined a network and has been fully con figured and has multiple parents. Also see “Network Connection Status Screens” on page 6-5.

Diagnostic Button Screen 5: voltage reading at the Power Module terminals. Also see

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n e t w k

u n k n w n

n e t w k

I N I T

n e t w k

i d l e

n e t w k

D I S C N T

N E T w K

S R C H N G

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PRELIMINARY

Rosemount 3308

Network Connection Status Screens

One of the following network diagnostic status screens will display in the fourth position of the Diagnostic Button Screen sequence. The screen displayed is dependent on the progress of the device in joining the wireless network.

Diagnostic Button Screen 4.1: the device is still in the process of being activated

Diagnostic Button Screen 4.2: the device has just started

Diagnostic Button Screen 4.3: the device has just started to join the network

Diagnostic Button Screen 4.4: the device is in a disconnected state and requires a "Force Join" command to join the network

Diagnostic Button Screen 4.5: the device is searching for the network

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Rosemount 3308

n e t w k

N E G O T

n e t w k

c o n e c t

n e t w k

L I M - O P

n e t w k

O K

b o a r d

f a i l u r

PRELIMINARY

Diagnostic Button Screen 4.6: the device is attempting to join a network

Diagnostic Button Screen 4.7: the device is connected to the network, but is in a “quarantined” state

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Diagnostic Button Screen Sequence (continued)

Diagnostic Button Screen 4.8: the device is

joined and operational, but is running with limited bandwidth for sending periodic data

Diagnostic Button Screen 4.9: the device has joined a network and has been fully con figured and has multiple parents

The following screens will show the device diagnostics depending on the state of the device, continuing after Diagnostic Button Screen 5.

Diagnostic Button Screen 6.1: there is a critical error which may prevent the electronics board from operating correctly

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s u p l y

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s u p l y

l o w

r a d i o

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Rosemount 3308

Diagnostic Button Screen 6.2: there is a warning which should be addressed, but should not affect the device output.

Diagnostic Button Screen 7.1: the terminal voltage has dropped below level of operating limit. Replace the Black Power Module model number 701PBKKF (Part Number: 00753-9220-0001)

Diagnostic Button Screen 7.2: the terminal voltage is below the recommended operating range

- if this is a self-operated device, the power module should be replaced - for line powered devices, the supply voltage should be increased

Diagnostic Button Screen 8: the device cannot retrieve information from the radio in the device the device may still be operational and publishing HART data

Diagnostic Button Screen 9: configuration of the transmitter is invalid such that critical operation of the device may be affected - check the extended configuration status to identify which configuration item(s) need to be corrected

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s n s r

f a i l u r

B D W T H

L I M I T D

PRELIMINARY

Diagnostic Button Screen 10: a switch attached to the transmitter has failed, and valid readings from that probe are no longer possible - check the probe and probe wiring connections - check additional status for more detailed information of the failure source

Diagnostic Button Screen 11: the device has not yet received all of the requested wireless bandwidth needed to operate as configur ed

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Diagnostic Button Screen 12: the device has not yet received all of the requested wireless bandwidth needed to operate as configur ed

Diagnostic Button Screen 13+: all of the periodic screens except Supply Voltage will now be displayed to conclude the Diagnostic Button Screen Sequence. These screens are: PV Measurement SV Measurement Electronics Temperature

ALERTS The Rosemount 3308 can be configured to report alerts based on the

measured variables. The Rosemount 3308 also reports diagnostic alerts when there is a device malfunction. For information on these alerts, refer to

Section 6: Troubleshooting. The following figures show how the AMS Suite

Intelligent Device Manager overview screen looks for each of the alert conditions.

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Figure 6-1. AMS Device Manager Overview Screen, Normal Conditions

Figure 6-2. AMS Device Manager Overview Screen, Alert Conditions

PRELIMINARY

Rosemount 3308

Device Alert Configuration

Alert Levels

The Rosemount 3308 provides 4 user configurable alerts.

HI HI HI LO LO LO explain all and add image.

Alert Setup

There are three methods that can be used to set up these alerts u sing AMS Wireless Configurator or a field communicator.

Add methods.

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POWER MODULE REPLACEMENT

Expected Power Module life is XX years at reference conditions

Add warnings

When the Power Module needs to be replaced, remove the Power Module cover and the depleted Power Module. Replace the powe r module with a n ew Black Power Module, SmartPower™ Solutions model number 701PBKKF. Replace the cover and ensure that the power module cover is fully tightened to prevent moisture ingress. The lip of the power module cover should be in contact with the metal enclosure to ensure a pro per seal. Do not over tighten.

Handling Considerations

The Black Power Module with the wireless unit contains two "C" size primary lithium/thionyl chloride batteries. Each battery contains approximately 2.5 grams of lithium, for a total of 5 grams in each Power Module. Under normal conditions, the battery materials are self-contained and are not reactive as long as the batteries and the battery pack integrity are maintained. Care should be taken to prevent thermal, electrical or mech anical damage. Contacts should be protected to prevent premature discharge.

Use caution when handling the power module, it may be damaged if dropped from heights in excess of 20 ft (6 m).

Battery hazards remain when cells are discharged.

Environmental Considerations

As with any battery, local environmental rules and regulations should be consulted for proper management of spent batteries. If no specific requirements exist, recycling through a qualified recycler is encouraged. Consult the materials safety data sheet for battery specific information.

(1)

Shipping Considerations

The unit was shipped to you without the power module inst alled. Please remove the power module prior to shipping.

Each Black Power Module contains two "C" size primary lithium batteries. Primary lithium batteries are regulated in transportation by the U.S. Department of Transportation, and are also covered by International Air Transport Association ( IA TA), International Civil Aviation Organization (ICAO), and European Ground Transportation of Dangerous Goods (ARD). It is the responsibility of the shipper to ensure compliance with these or any other local requirements. Please consult current regulations and requirements before shipping.

(1) Reference conditions are 70° F (21° C), transmit rate of once per minute, and routing data

for three additional network devices.

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Section 7 Service and Troubleshooting

Safety messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 7-1

Advanced Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . page 7-2

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7-9

Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7-19

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

Explosions could result in death or serious injury.

Verify that the operating environment of the gauge is consistent with the appropriate hazardous locations certifications.

In an Explosion-proof/Flameproof installation, do not remove the transmitter cover when power is applied to the unit.

Failure to follow safe installation and servicing guidelines could result in death or serious injury.

Make sure only qualified personnel perform the installation. Use the equipment only as specified in this manual. Failure to do so may impair the

protection provided by the equipment. Do not perform any service other than those contained in this manual unless you are

qualified.

High voltage that may be present on leads could cause electrical shock.

Avoid contact with leads and terminals. Make sure the main power to the Rosemount 3308 transmitter is off and the lines to any

other external power source are disconnected or not powered while wiring the gauge.

Process leaks could result in death or serious injury.

Make sure that the transmitter is handled carefully. If the Process Seal is damaged, gas might escape from the tank if the transmitter head is removed from the probe.

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Rosemount 3308

Tank Height

Product Level

Upper Reference Point

Transmitter Reference Point

Calibration Offset

PRELIMINARY

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February 2012

ADVANCED CONFIGURATION

User defined Upper Reference Point

Figure 7-1. Tank Geometry

This section covers non-standard configuration.

If you want to specify your own Upper Reference Point you can do this by setting the Calibration Offset parameter.

7-2

To set the desired upper reference point do the following:

1. Adjust the Tank Height to the distance from the tank bottom to the desired Upper Reference Point.

2. Add the distance betw een th e Upper Reference Point and the Transmitter Reference Point to the Calibration Offset value that is stored in the transmitter database. With the HART Communicator the Calibration Offset is available as HART Fast Key sequence [1, 4, 5, 5].

In Radar Configuration Tool (RCT) the Calibration Offset is available under the Advanced section in the RCT Project Bar: Device Commands>Basic>Set Calibration Offset.

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Upper Null Zone

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Rosemount 3308

Plotting the Measurement Signal

Figure 7-2. Waveform plot in RCT

The Radar Configuration Tool (RCT) has powerful tools for advanced troubleshooting. By using the Waveform Plot function you get an instant view of the tank signal. Measurement problems can be solved by studying the position and amplitude of the different pulses.

To plot the measurement signal:

1. Start the Radar Configuration Tool program.

2. Choose the View>Plotting menu option, or choose the Plotting icon in the RCT workspace (Advanced page at the left side of the workspace) and click the Read button.

In a typical measurement situation the following pulses app ear in the dia gram: P1 - Reference pulse. This pulse is caused by the transition between

transmitter head and probe. It is used by the transmitter as a reference at level measurements.

P2 - Product surface. This pulse is caused by a reflection on the product surface. In Measurement Mode=Interface when Immersed Probe however , P2 indicates the interface since the surface of the upper product is ignored.

P3 - Interface or probe end. This pulse is caused by reflection on th e interface between an upper product and a bottom product with a relatively high dielectric constant. It may also be caused by the probe end if there is no product above. This pulse is shown when the transmitter is in Measurement Mode=Level & Interface.

Different amplitude thresholds are used in order to filter out unwanted signals. The following amplitude thresholds are used for the Rosemount 3308 transmitter:

T1 - amplitude threshold for detection of the Reference pulse P1. T2 - amplitude threshold for detection of the product level peak P2. T3 - amplitude threshold for detection of the interface level peak P3. T4 - amplitude threshold that is used to detect whether the probe is fully

immersed in the upper product or not.

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Start disk logging

Start monitoring

Number of plots

Read plot interval

Read action type

Figure 7-3. Disk logging Waveform p lot

PRELIMINARY

Normally the thresholds are adjusted to approximately 50% of the signal peak amplitude. To adjust the Amplitude Thresholds open the Advanced section in the RCT Project Bar and choose Device Commands>Details>Set Nominal Thresholds. To reset the default values set Amplitude Threshold=0 (zero).

Logging and saving to disk

The Waveform plot can be automatically logge d and saved to file by specifying the read plot interval and the number of plots to log.

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7-4

The Read Plot Interval entry field specifies the time interval between plots that are saved to disk. For example, type 10 if you want the waveform plot to be updated every ten minutes.

Number of plots to log specifies the maximum number of plot files that will be stored. The default value is 100.

Click the Start Disk Logging button to start the log. Make sure that Read Action type is set to Multiple Read. Otherwise RCT will only save one log file. Choose a destination folder and enter a file name. For each new file the corresponding number is appended to the end of the file name.

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The amplitude threshold is above the measurement signal peak

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PRELIMINARY

Rosemount 3308

Interface Measurements for Semi-Transparent Bottom Products

In interface applications where the bottom product has a low dielectric constant, or if the signal is attenuated in the upper product, the amplitude of the reflected signal is relatively low and dif ficult for the transmitter to detect. In such a case it may be possible to detect the reflected signal if the corresponding amplitude threshold is adjusted.

The Radar Configuration Tool (RCT) lets you view a waveform plot to analyze the measurement signal. The plot shows the signal and the thresholds used for the different amplitude peaks. By adjusting amplitude threshold T3 it is possible to detect even weak interface signals.

Guidelines for amplitude threshold settings:

• The amplitude threshold T3 should be approximately 50 % of the interface signal amplitude.

• Threshold T3 should not be less than 3.

• If possible, T3 should be higher than T2.

You can use the RCT software or a Field Communicator to change the amplitude thresholds. For the Field Communicator use the HART command [1, 4, 5, 3]. See also “Amplitude Threshold Settings” on page 7-12.

RCT lets you view a plot of the measurement signal along with the current thresholds:

1. From the View menu choose the Plotting option, or double-click the Plotting icon in the Advanced section of the RCT Project Bar.

2. Click the Read button .

3. To adjust the Amplitude Thresholds open the Advanced section in the RCT Project Bar and choose Device Commands>Details>Set Nominal Thresholds.

Figure 7-4. Waveform plot indicating that the amplitude threshold for the interface peak is too high.

7-5

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The amplitude threshold is adjusted below the peak to allow the interface peak to be detected

Figure 7-5. After changing the amplitude threshold the transmitter detects the interface

PRELIMINARY

Figure 7-4 illustrates a situation where amplitude threshold T3 is too high. The signal amplitude peak at the interface between the upper and lower prod ucts is not detected in this case. By adjusting amplitude threshold T3, the peak at the interface between the upper and lower products is detected as illustrated in Figure 7-5:

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Damping

Output tab

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PRELIMINARY

Rosemount 3308

High Level Rates The measurement signal is filtered in order to minimize the influence of

disturbing noise. In most measurement situations this does not have a noticeable effect on the response time to level changes. If high level rates occur it may however be necessary to reduce the damping value in order to allow the transmitter to respond quicker. If there is too much noise the damping value may be increased in order to get a stab le measurement sign al.

You can use the RCT software or a Field Communicator to change the Damping value. For the HART Communicator use the key sequence [1, 3, 5].

In the RCT software open the Setup>Output tab and enter the desired Damping value:

The Damping parameter determines how quickly the tr ansmitter responds to level changes and how robust the measurement signal is against noise. Technically, a damping value of 10 means that in 10 seconds the output from the transmitter is about 63% of the new level value. Consequen tly, when there are rapid level changes in the tank, it may be necessary to decr ease the Damping value for the transmitter to be able to track the surface. On the other hand, in noisy environments, and if level rates are low, it may be better to increase the damping value to have a stable output signal.

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Interface Distance

Interface Level

Product Level is ignored

Interface Level is measured

PRELIMINARY

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February 2012

Interface Measurements with Fully Immersed Probes

The Rosemount 3308 transmitter has a measurement option which makes it possible to handle interface measurements when the product level is not visible, for example in a full bridle pipe as illustrated in Figure 7-6. In this case the probe is fully immersed into the upper product, and o nly the interface level is detected by the transmitter. Even if the upper product level drops, it is ignored by the transmitter which continues to measure only the interface level, but the measurement accuracy is reduced since the transmitter does not take into account the influence of the air gap above the product surface.

The Measurement Mode parameter is available via the HART command [1, 3, 3, 4]. Choose the Interface when Immersed Probe option.

Measurement mode Interface when Immersed Probe can also be activated in the RCT software:

1. Open the Setup window.

2. Select the Tank Config tab.

3. Choose Measurement Mode Interface when Immersed Probe.

4. Click the Send Page button.

NOTE!

Do not use Measurement Mode Interface when Immersed Probe in “stand ard” applications when both Interface Level and Product Level are measured.

Figure 7-6. Interface Level measurements in a full bridle pipe.

If the product level drops, the air filled region in the upper part of the pipe will slightly reduce the measurement accuracy of the interface level. To achieve high accuracy in this measurement mode the probe must be fully immersed.

7-8

NOTE!

Adjust Threshold T2 if the level pulse is not detected.

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Level

Reference Point

Tank Height

Distance

Reference Point

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SERVICE

PRELIMINARY

Rosemount 3308

Level and Distance Calibration

When calibrating the transmitter it is important that the product surface is calm and that the tank is not being filled or emptied.

A complete calibration is performed in two steps:

1. Calibrate the Distance measurement by adjusting the Calibration Offset parameter.

2. Calibrate the Le ve l measu re m en t by adju stin g the Tank Height.

Distance calibration

1. Measure the actual distance between the Upper Reference Point and the product surface.

2. Adjust the Calibration Offset so that the Distance measured by the transmitter corresponds to the actual distance. The Calibration Offset parameter is available via HART command [1, 4, 5, 5], or RCT: open the Advanced section in the Project Bar and choose Device Commands>Basics>Set Calibration Offset.

Level calibration

1. Measure the actual Product Level.

2. Adjust the Tank Height so that the measured Product Level corresponds with the actual level.

Figure 7-7. Distance and Level calibration

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February 2012

Disturbances at the Top of the Tank

Using the Trim Near Zone Function

For transmitters using the Guided Wave Radar technology the performance In the Near Zone (referred to as the reg ion between 0-1.6 ft (0-0.5 m) below the Upper Reference Point) is normally somewhat limited. However, the Rosemount 3308 transmitter is equipped with software functionality that minimizes the Upper Transition Zone. The factory setting is normally sufficient and doesn’t need to be repeated after installation.

However, since the setting is optimized depending on actual installation, further trimming may be necessary in the case of unfavorable conditions. This may for example be the case if a Single Lead probe is mounted in a small nozzle, or if there are disturbing obstacles in the Near Zone. The trimming means that the measurement performance in the Near Zone is maintained even under these conditions and prevents false echo indic at i on .

To trim the Near Zone performance do the following:

1. Make sure that the product level is below the Near Zone region (0-1.6 ft (0-0.5 m) below the Upper Reference Point).

2. Start the Radar Configuration Tools (RCT).

3. Choose the Device Commands option from the View menu.

4. Open the Details folder.

5. Click the Trim Near Zone option.

6. Select the Update option and click the OK button.

NOTE!

The Trim Near Zone function should only be used for reducing impact from constant disturbances. It is not suitable for occasional disturbances.

To reset the transmitter to factory settings do the following:

1. Start the Radar Configuration Tools (RCT).

2. Choose the Device Commands option from the View menu.

3. Open the Details folder.

4. Click the Trim Near Zone option.

5. Select the Reset to Factory Settings option and click the OK button.

Changing the Upper Null Zone

Measurements are not performed within the Upper Null Zone (UNZ). By setting the UNZ parameter to zero, measurements can be performed in the region close to the flange (Near Zone). However, it is very important that there are no disturbances in that region if UNZ is set to zero.

If there are measurement problems in the upper part of the tank you may use the Trim Near Zone function as described above.

If the desired measurement range is below the Near Zone, or if disturbing objects are located below the Near Zone, the Upper Null Zone parameter can be used to avoid measurements above a certain level.

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Tank Height

Upper Null Zone

Product Level

Upper Reference Point

Upper Null Zone

Disturbance

00809-XXXX-4811, Rev AA February 2012

Figure 7-8. Upper Null Zone

PRELIMINARY

Rosemount 3308

To set the Upper Null Zone do one of the following:

1. Select the HART command [1, 3, 3, 1].

2. Enter the desired value,

1. Start the Radar Configuration Tool (RCT).

2. Click the Setup icon in the RCT workspace Project Bar.

3. Choose the Tank Config tab in the Setup window.

4. Click the Receive Page button.

5. Type the desired value in the Upper Null Zone field.

6. Click the Send Page button. Now the Upper Null Zone is stored in the transmitter memory.

Figure 7-9. Identifying the Upper Null Zone in the RCT Waveform Plot

7-11

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Rosemount 3308

T2 is above the Level peak

Amplitude

100

80 60

-60

-40

-20

100

150

200

250

Actual surface

Disturbing echo misinterpreted as product surface

PRELIMINARY

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February 2012

Amplitude Threshold Settings

Figure 7-10. Example 1: amplitude threshold T2 is too high.

The amplitude thresholds are automatically adjusted to appropriate values in order to filter out noise and other non-valid measurements from the measurement signal.

The amplitude of the measurement signal, i.e. the amplitude of the signal that is reflected by the product surface, is related to the actual dielectric constant of the product. The amplitude threshold that is used by the transmitter is based on the parameter configuration of the current product dielectric constant (see Section 5: Basic Configuration). Normally no other threshold adjustment is needed, but if the transmitter still does not track the product surface correctly it may be necessary to adjust the threshold values.

The Radar Configuration Tool (RCT) has a plot function allowing you to view the reflections along the probe.

If the amplitude threshold is too high the product level is not detected as illustrated in Figure 7-10.

100

80 60

Amplitude

-20

-40

-60

250

200

150

100

Figure 7-11. Example 2: amplitude threshold T2 is too low.

7-12

If there are disturbing objects in the tan k the threshold must be carefully set in order to avoid locking on the wrong amplitude peak. In Figure 7-11 the transmitter has locked on a peak above the actual product surface, i.e. a disturbance was interpreted as the product surface, whereas the actual product surface was interpreted as an interface or the probe end.

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After T2 is adjusted the product surface is correctly detected

00809-XXXX-4811, Rev AA February 2012

Figure 7-12. Waveform plot after threshold T2 was adjusted

PRELIMINARY

Rosemount 3308

By adjusting the amplitude threshold T2 the product surface is detected correctly as illustrated in Figure 7-12.

100

80 60

Amplitude

-20

-40

-60

To adjust the amplitude thresholds select HART command [1, 4, 5, 3]

250

200

150

100

1. Start the Radar Configuration Tool (RCT).

2. Choose the Device Commands option from the View menu.

3. Open the Details folder.

4. Click the Set Nominal Thresholds option.

The thresholds T2 and T3 should be set to about 50% of the measured signal amplitude for the product surface and the interface peaks, respectively.

NOTE

Amplitude thresholds should not be set to values less than 3.

NOTE

Check that the dielectric constant parameter setting is reasonably close to the actual dielectric constant value of the upper product before changing the amplitude thresholds.

NOTE

Default Amplitude thresholds can be set by typing 0 as th e ne w thr es hol d value.

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Start disk logging

Start monitoring CounterLog interval

PRELIMINARY

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February 2012

Logging Measurement Data

To start logging do the following:

1. Click the Monitor icon in the RCT workspace or choose the Monitor option from the View menu.

2. Choose the desired variables to be monitored and click the Start Monitor

button.

Saving the log to disk

1. Choose the desired variables to be monitored.

2. Click the Log interval button and enter a time interval. For example, type 10 if you want data to be logged every tenth second.

3. Click the Counter button and enter the maximum number of files to be stored. The Counter is used to limit the amount of data stored on the hard disk. Each time the maximum number of entries in a log file is reached, the current log file is saved and a new file is created. This procedure continues up to the maximum number of files given by the Counter value. The file size is limited to 60,000 entries which can easily be handled by spreadsheet programs like MS Excel.

4. Select the desired options for Timer, Time and Date. By selecting a check box the corresponding time indication is stored for each log entry in the log file.

5. Click the Start disk logging button.

6. Choose a destination folder and enter a file name.

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Save Setup

File name

00809-XXXX-4811, Rev AA February 2012

PRELIMINARY

Rosemount 3308

Saving the Transmitter Configuration

The Radar Configuration Tool offers different methods to save the current transmitter configuration:

• Save only the configuration specified in the Setup window.

• Use the more extensive function in the Memory Map window.

You can use a stored configuration file as a backup of the current configuration, or it can be distributed for service purposes.

To save the current transmitter setup do the following:

1. Click the Setup icon in the RCT workspace or choose the Setup option from the View menu to open the Setup window.

2. Click the right mouse button and choose the Receive All option, or from the Setup menu choose the Receive All option. Alternatively, you can use the Receive Page option on each individual page.

NOTE!

All pages must be received before the setup can be saved.

3. Click the right mouse button and choose the Save Setup option.

4. Choose a destination folder and enter a file name.

5. Click the Save button.

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Rosemount 3308

Open Setup

PRELIMINARY

To load a setup

1. Click the Setup icon in the RCT workspace or choose the Setup option from the File menu.

2. In the Setup window click the right mouse button and choose the Open Setup option, or from the File menu choose the Open Setup option.

3. Open the source folder and select the desired setup file.

4. Click the Open button.

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

Memory Map

The Memory Map window lets you view the current transmitter database registers. It is also possible to save the current database for backup or service purposes, and it is also possible to download a backup database to the transmitter. To save configuration data in the Memory Map window:

1. Start the RCT program.

2. Choose the View>Memory option, or click the Memory Map icon in the RCT workspace (Advanced section at the left side of the worksp ace window).

3. Choose the All EE option from the drop-down list.

4. Click the Receive button. (It may take a few minutes to read the database).

5. Click the right mouse button and choose the Save Memory As option.

6. Type the desired file name and click the OK button. Now the current database is stored.

See the Online Help in RCT for further information on how to open a saved database and how to download a database to the transmitter.

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Nut

Process Seal

Put the protection plug here!

FLANGE VERSION

Nut

Process Seal

Adapter

THREADED VERSION

Put the protection plug here!

00809-XXXX-4811, Rev AA February 2012

Removing the Transmitter Head

PRELIMINARY

Rosemount 3308

1. Loosen the nut that connects the transmitter housing to the Process Seal.

2. Carefully lift the transmitter head.

3. Make sure that th e up pe r su rfa ce of th e Process Seal is clean and the spring-loaded pin at the center of the Process Seal is properly inserted (the pin should move back when pushed into the hole).

4. Attach the protection plug to the Process Seal.

NOTE

Do not remove the Process Seal from the adapter!

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Rosemount 3308

Nut

Transmitter

head

Process

Seal

Changing the Probe

PRELIMINARY

Reference Manual

00809-XXXX-4811, Rev AA

February 2012

1. Loosen the nut.

2. Remove the transmitter head from the old probe.

3. On the new probe, make sure that the protection plug is removed and the upper surface of the Process Seal is clean. Also make sure that the spring-loaded pin at the center of the Process Seal is properly inserted.

4. Mount the transmitter head on the new probe.

5. Fasten the nut again.

6. If the new probe is not of the same type as the old one, update the transmitter configuration by setting the Probe Type parameter to the appropriate value: HART Fast Key sequence [1, 3, 2, 3], or RCT Setup/Tank Config.

7. Measure the probe length and enter the measured value: HART Fast Key sequence [1, 3, 2, 2], or RCT Setup/Tank Config.

8. Verify that the transmitter is calibrated.

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PRELIMINARY

00809-XXXX-4811, Rev AA February 2012

Rosemount 3308

DIAGNOSTIC MESSAGES

Troubleshooting If there is a malfunction despite the ab se nc e of dia g no stic mes sa ge s, se e

Table 7-1 for information on possible causes.

Table 7-1. Troubleshooting chart

Symptom Possible cause Action

Both P2 and P3 are detected but Interface Level is reported as Not A Number (NAN) in the waveform plot.

Both Level and Interface Level are reported as NAN.

Both P2 and P3 are detected but the interface level is equal to the product Level.

P2 is detected but Level is incorrectly reported as Full or Empty.

The reference pulse is not detected.

Level accuracy seems off.

Integral display does not work.

Measurement Mode is set to “Level Only”. Set Measurement Mode to “Level and

Probe is not connected. Use the command “Read Gauge Status”

• P3 is identified as a double bounce.

• P2 and P3 are very close.

• The tank is full.

• The transmitter is configured with wrong probe type.

• Amplitude Threshold T1 is not correct.

• Configuration error. • Check the Tank Height parameter.

Interface” (see “Basic Configuration” on page 5-9).

and check if error “Probe Failure” is active. If this is the case, check the probe connection.

Adjust thresholds T2 and T3, see “Amplitude Threshold Settings” on page 7-12 for more information.

Use the command “Read Gauge Status” and check if the warning “Probe Immersed” is active. If this is the case check that:

• the transmitter is configured with correct probe type,

• the reference pulse (P1) is below amplitude threshold T4. If not, adjust T4 to an appropriate value.

• Check the product level.

• Check that correct probe type is configured.

• Check Amplitude Threshold T1.

• Check status information and diagnostic information.

• Check the display configuration.

• Check Display connection.

Table 7-2. Maintenance and Troubleshooting Suggestions

Symptom Corrective Actions Wireless Troubleshooting

Poor wireless connectivity 1. Verify device oriented for optimal connections (See Section 2: Transmitter Overview

of this document)

2. Verify wireless network best practices are followed (See Appendix C for more

information)

Acoustic Transmitter not joining network 1. Verify the device has power

2. Verify the device is within effective communications range

3. Verify the proper Network ID has been entered into the device

4. See troubleshooting section of the Smart Wireless Gateway for more information (Document No. 00808-0200-4420)

Limited Bandwidth Error 1. Use the slowest acceptable update Rate

2. Increase communication paths by adding more wireless points

3. Check that the device has been online for at least an hour

4. Create a new network with an additional Smart Wireless Gateway

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PRELIMINARY

Error indication

Reference Manual

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Rosemount 3308

February 2012

Errors Table 7-3 is a list of diagnostic messages that may be displayed on the

Integral Display, on the Field Communicator, in AMS Suite or by the Radar Configuration Tools (RCT) software. Errors normally result in Analog Output alarm.

Errors are indicated in RCT by the message “Transmitter malfunction”:

To see the error message do one of the following:

• Click the Read Gauge Status icon in the toolbar at the top of the RCT workspace.

• 1. Open the Advanced section in the RCT workspace Project Bar and click the Device Commands icon, or choose the Device Commands option from the View menu.

2. Open the folder named Diag and double-click the Read Gauge Status option.

Table 7-3. Error messages.

Invalid configuration. LCD error code: CNFIG.

RAM failure was detected during startup test. LCD error code: 00001.

FPROM failure was detected during startup test.

Waveform acquisition failure. LCD error code: 00006.

EEPROM factory checksum. LCD error code: 00007.

EEprom user checksum error. LCD error code: 00008.

Software error. LCD error code: 00010.

Probe failure. LCD error code: 00013.

Message Description Action

At least one configuration parameter is outside allowed range. NOTE: the default values are used until the problem is solved.

The transmitter performs an immediate reset.

This error is probably caused by hardware failure.

Checksum error in the factory configuration parameters. Can be caused by power failure during configuration or by hardware error. NOTE: the default values are used until the problem is solved.

Caused by error in the User Configuration parameters. Can be caused by power failure during configuration or by hardware error. NOTE: the default values are used until the problem is solved

Contact Rosemount service

Probe is not detected. Check that the probe is correctly

• Load default database and restart the transmitter.

• Cont act Emerson customer service if the problem persists.

Contact Rosemount service department.

• Load default database and restart the transmitter.

• Cont act Emerson customer service if the problem persists.

department.

mounted (see “Changing the Probe” on page 7-18).

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Rosemount 3308A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Section 1 Introduction

SAFETY MESSAGES Procedures and instructions in this manual may require special preca utions to

MANUAL OVERVIEW This manual provides installation, configuration and maintenance information

SERVICE SUPPORT To expedite the return process outside of the United States, contact the

PRODUCT RECYCLING/DISPOSAL

Section 2 Transmitter Overview

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to

Warnings

Rosemount 3308

THEORY OF OPERATION The Rosemount 3308 Wireless Guided Wave Radar Level Transmitter is a

APPLICATION EXAMPLES

SYSTEM ARCHITECTURE

Interface Rosemount 3308 is the ideal choice for measuring the interface of oil and

V E SSEL CHARACTERISTICS

Heating Coils, Agitators The Rosemount 3308 transmitter is relatively insensitive to objects in the tank

Tank Shape The guided wave radar transmitter is insensitive to the tank shape. Since the

COMPONENTS OF THE TRANSMITTER

PROBE SELECTION GUIDE

Transition Zones The measuring range depends on probe type and properties of the product.

SERVICE SUPPORT To expedite the return process outside of North America, contact your

PRODUCT RECYCLING/DISPOSAL

Section 3 Wireless Configuration

SAFETY MESSAGES Instructions and procedures in this section may require special precautions to

Warnings

WIRELESS CONSIDERATIONS

General The Wireless Guided Wave Radar Tr ansmitter has the capability to measure

Mechanical Location

Electrical The Rosemount 3308 Wireless Guided Wave Radar transmitter is

POWER MODULE INSTALLATION

DEVICE CONFIGURATION

DEVICE NETWORK CONFIGURATION

Field Communicator Connect the field communicator leads to the COMM terminals on th e terminal

Fast Key Sequences Table 3-1 lists the fast key sequence for common transmitter functions.

REMOVE POWER MODULE

Section 4 Installation

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

INSTALLATION PROCEDURE

BEFORE YOU INSTALL Electronic boards are electrostatically sensitive. Failure to observe proper

Software write protect Security write protection prevents unauthorized access to configuration data

MOUNTING CONSIDERATIONS

Process Connection The Rosemount 3308 transmitter has a threaded connection for easy

Installation of Single Lead Probes in Non-metallic Tanks

Mounting in Still pipes/by-pass pipes

Free Space For easy access to the transmitter make sure that it is mounted with sufficient

Recommended Mounting Position

MECHANICAL INSTALLATION

Shortening the Probe Flexible Twin/Single Lead

Anchoring In turbulent tanks it may be necessary to fix the probe. Depending on the

Mounting a Centering Disc for Pipe Installations

LCD Display

General If the LCD display is ordered in the transmitter model number (option code

LCD Rotation The optional LCD display can be rotated in 90-degree increments by

Retrofitting If an existing transmitter with no display (flat electronics cover) is to be

LCD Configuration How to configure parameters displayed, update rate, always off, etc.

GROUND THE TRANSMITTER

How to Ground the Device

Section 5 Start-Up/Commissioning

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

DEVICE NETWORK CONFIGURATION

Field Communicator Connect the field communicator leads to the COMM terminals on th e terminal

CONFIGURATION PARAMETERS

Basic Configuration The basic transmitter configuration includes setting the tank geometry

Volume Configuration For volume calculations you can choose one of the standard tank shapes or

CONFIGURATION USING A FIELD COMMUNICATOR

BASIC CONFIGURATION This section describes the various HART commands used to co nfigure the

Transmitter Variables

Measurement Units

Tank Height

Probe Length

Probe Type

Product Dielectric

Va por Dielectric

Measurement Mode

Probe Angle

Maximum Upper Product Thickness