Emerson Rosemount Apex, Rosemount Apex Sentry Reference Manual

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Reference Manual

00809-0100-4731, Rev FA April 2003

and Radar Gauges

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Reference Manual

00809-0100-4731, Rev FA April 2003

APEX™ and APEX Sentry™ Radar Gauge

NOTICE

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.

Within the United States, Rosemount Inc. has two toll-free assistance numbers.

Customer Central: 1-800-999-9307(7:00 a.m. to 7:00 p.m. CST) Technical support, quoting, and order-related questions.

North American1-800-654-7768 (24 hours a day – Includes Canada) Response Center: Equipment service needs.

For equipment service or support needs outside the United States, contact your local Rosemount representative.

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 Rosemount Sales Representative.

Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc. PlantWeb is a trademark of the Fisher-Rosemount group of companies. APEX, APEX Sentry, and the APEX logotypes are trademarks of Rosemount Inc. HART is a registered trademark of the HART Communication Foundation. Teflon, VITON, and Kalrez are registered trademarks of E.I. du Pont de Nemours & Co. Cover Photo: APEX002C

www.rosemount.com

Reference Manual

00809-0100-4731, Rev FA April 2003

APEX™ and APEX Sentry™ Radar Gauge

Table of Contents

SECTION 1 Introduction

SECTION 2 Installation

Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

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

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Components of the APEX and

APEX Sentry Radar Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

System Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

APEX /Hybrid System Overview

(APEX Radar Gauge Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Addressing Concerns about Exposure to

The APEX and APEX Sentry Radar Gauges . . . . . . . . . . . . . . . . . 1-7

Service Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

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

Before You Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Telecommunications Agency Requirements . . . . . . . . . . . . . . . . . 2-4

Operation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Tank Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Unpacking the APEX and APEX Sentry Radar Gauges. . . . . . . . . 2-5

Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Process Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Dielectric Constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Foam and Vapors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Changing Density, Temperature, or Pressure. . . . . . . . . . . . . . 2-6

Turbulence or Vortices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Coating, Condensate, or Corrosion. . . . . . . . . . . . . . . . . . . . . . 2-7

Vessel Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

General Vessel Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Heating Coils and Agitators. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Cables, Floats, Baffles, or Trays . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Inlet Pipes or Flows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Specific Tank Shapes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Spherical Vessel Considerations. . . . . . . . . . . . . . . . . . . . . . . 2-10

Horizontal Vessel Mounting Surface . . . . . . . . . . . . . . . . . . . . 2-11

Stilling Well, Bypass Cage, and

Bridle Connection Considerations . . . . . . . . . . . . . . . . . . . . . . 2-12

Nozzle Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Non-horizontal Mounting Surface . . . . . . . . . . . . . . . . . . . . . . 2-13

Tank Nozzle Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

Process Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

www.rosemount.com

APEX™ and APEX Sentry™ Radar Gauge

Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Flange Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Access Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Wall, Nozzle, or Standoff Clearance . . . . . . . . . . . . . . . . . . . . 2-20

Mounting the Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Electrical Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Check Processor Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Conduit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Grounding the Gauge Housing . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Transient Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

External Power Shut-off Switch. . . . . . . . . . . . . . . . . . . . . . . . 2-24

Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Cable Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Power vs. Distance Requirements . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Hazardous Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

DC Main Power Supply with 4–20 mA Loop

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

DC Main Power Supply Fuse Size and Type . . . . . . . . . . . . . 2-26

DC Main Power Supply with No Loop Power Supply . . . . . . . . . . 2-27

AC Main Power Supply with 4–20 mA Loop

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

AC Main Power Supply Fuse Size and Type . . . . . . . . . . . . . 2-29

Wiring Optional Gauge Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Model 751 Field Signal Indicator . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

(APEX Radar Gauge and APEX Sentry Radar Gauge) . . . . . 2-29

APEX/Hybrid System Installation (APEX Radar Gauge Only) . . . 2-31

3- or 4-Wire RTD (APEX Radar Gauge Only) . . . . . . . . . . . . . . . 2-32

Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Reference Manual

00809-0100-4731, Rev FA

April 2003

SECTION 3 Configuration

TOC-2

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

Basic Configuration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Key Measurement Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Reference Gauge Height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Minimum Clearance to Product Level . . . . . . . . . . . . . . . . . . . . 3-3

Maximum Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Upper Range Value (20 mA Point) . . . . . . . . . . . . . . . . . . . . . . 3-3

Lower Range Value (4 mA Point) . . . . . . . . . . . . . . . . . . . . . . . 3-3

Volume Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Special Cases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Dish-bottom Tanks, Empty Tank Detection . . . . . . . . . . . . . . . . 3-4

Null Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Field Configuration Using the Integral

Display Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

(APEX Radar Gauge Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Starting the Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Setting Configuration Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Reference Manual

00809-0100-4731, Rev FA April 2003

APEX™ and APEX Sentry™ Radar Gauge

Configuration Options Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Setting the Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Setting the Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Setting the Display Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Setting the Reference Gauge Height . . . . . . . . . . . . . . . . . . . 3-12

Setting the 4 mA Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Setting the 20 mA Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Exiting the Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Model 275 HART Communication Option . . . . . . . . . . . . . . . . . . . . . 3-15

Commissioning on the Bench With HART . . . . . . . . . . . . . . . . . . 3-15

Setting the Loop to Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Bench Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Field Hook-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Connections and Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Using a Model 275 HART Communicator . . . . . . . . . . . . . . . . 3-18

Set Transmitter Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Set Reference Gauge Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Set 4 and 20 mA Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Volume Configuration (APEX Radar Gauge Only) . . . . . . . . . . . . 3-18

Set Volume Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Set Primary Variable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Set Range Values

(4 and 20 mA points) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Choose Tank Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Enter Tank Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Enter Strapping Table Information . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Standard Volume (Apex Radar Gauge Only) . . . . . . . . . . . . . . . . 3-20

Enable RTD Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Enter Volume Coefficients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

AMS Configuration Tool Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Strapping Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Transmitter Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Rerange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Radar Configuration Tool (RCT) Option . . . . . . . . . . . . . . . . . . . . . . 3-25

Installing the RCT Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Specifying the COM Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Using the Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Using the Setup Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Setup - Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Setup - Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Setup- Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Setup - Tank Config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Setup - Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Setup - LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Setup - Advanced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Logging Measurement Data . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Saving the log to a disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Using the Advanced Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Tank Plotting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

TOC-3

APEX™ and APEX Sentry™ Radar Gauge

Reference Manual

00809-0100-4731, Rev FA

April 2003

SECTION 4 Hardware and Software Maintenance and Troubleshooting

APPENDIX A Reference Data

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Product Buildup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Splashing and Coating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Alarm and Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Local Operator Interface Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

HART Communicator Software Diagnostics . . . . . . . . . . . . . . . . . . . . 4-7

AMS Configuration Software Diagnostics . . . . . . . . . . . . . . . . . . . . . . 4-8

Removing the Gauge Housing From the Flange . . . . . . . . . . . . . . . . 4-10

Antenna Selection Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Telecom Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2

Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5

Process Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-7

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-7

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Software Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-7

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Materials of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-8

Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-8

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12

Configuration Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-16

Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-16

APPENDIX B Product Certificates

TOC-4

Approved Manufacturing Locations . . . . . . . . . . . . . . . . . . . . . . . . B-1

European Directive Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

ATEX Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

Flame-Proof enclosure Ex d protection type in

accordance with EN50 018 . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

European Pressure Equipment Directive (PED) (97/23/EC) . . . . . B-1

Electro Magnetic Compatibility (EMC) (89/336/EEC) . . . . . . . . . . . B-2

Low Voltage Directive (93/68/EEC) . . . . . . . . . . . . . . . . . . . . . . . . B-2

Other important guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-2

Hazardous Locations Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

North American Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Approval Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Reference Manual

00809-0100-4731, Rev FA April 2003

APEX™ and APEX Sentry™ Radar Gauge

Section 1 Introduction

Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-1

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

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

System Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-6

Service Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-8

USING THIS MANUAL NOTE

All information included refers to both the APEX Radar Gauge and the APEX Sentry Radar Gauge unless otherwise stated.

Section 2: Installation

• Mechanical considerations

• Electrical considerations

• Mounting, wiring, and field configuration instructions

Section 3: Configuration

• Field Configuration Using the Integral Display

• Level Configuration

• Volume Configuration

Section 4: Hardware and Software Maintenance and Troubleshooting

• Preventive maintenance

• Hardware and software diagnostic messages

Appendix A: Reference Data

• Specifications

• Dimensional Drawings

• Ordering Information

Appendix B: Product Certificates

• European ATEX Directive information

• Examples of intrinsic safety labels

• Approval drawings for installation

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APEX™ and APEX Sentry™ Radar Gauge

April 2003

SAFETY MESSAGES Procedures and instructions in this manual 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 ( ). Refer to the safety messages listed at the beginning of each section before performing an operation preceded by this symbol.

Explosions could result in death or serious injury:

Verify that the operating environment of the gauge 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.

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

Make sure only qualified personnel perform these procedures.

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.

As a matter of routine, shut off the APEX Radar Gauge and all other equipment in the tank before you enter the tank.

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OVERVIEW The APEX and APEX Sentry Radar Gauges use a radar signal to measure

the level of liquid in a vessel. Because the radar gauge is mounted on top of a vessel and its components do not contact the product, it is a dependable alternative to a standard insertion device that can become broken or corroded when inserted into the process. The APEX Radar Gauge also works well in turbulent, aerated, solids-laden, viscous, or corrosive liquids, and thick pastes or slurries.

The advanced 24 GHz frequency technology in the gauges significantly increases the reliability of your level measurement for a wide range of tank level applications. The gauges use radar technology based on frequency modulated continuous wave (FMCW) transmission of microwaves. Radar (microwave) signals are sent from the gauge to the surface of the material and reflected back to the gauge receiver. The receiver evaluates the frequency difference between the transmitted and returned signals. The gauge analyzes the signals to determine the distance to the product surface.

The 24 GHz frequency and advanced electronics allow the radar gauges to use a small antenna and maintain a narrow beamwidth. The small, lightweight antenna simplifies installation while the narrow beamwidth allows unwanted echoes from vessel obstructions such as agitators, heat exchangers, filling pipes, baffles, thermowells, and intermittent filling streams to be avoided. The narrow beam also increases mounting flexibility because the gauge can be mounted on existing flanges located close to tank walls.

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Which Radar Gauge is Best for Your Level Measurement Application?

APEX™ and APEX Sentry™ Radar Gauge

Step 1. Dielectric vs. Distance

Choose the appropriate shaded region for the application.

Dielectric Constant, ε

(1)

1.5 - 4.0

4.0 - 10.0 Organic or concentrated acids,

> 10.0 Water-based fluids, alcohols,

(1) Consult Factory when dielectric less than 4

Liquid Examples

Hydrocarbons, petrochemicals, freons, vegetable oils, toluene, ...

organic solvents, ...

dilute acids, acetone, glycols, ...

Step 2. Liquid Surface Quality

Dielectric vs.

(from Step 1.)

Distance Region

Match surface quality with shaded region from Step 1.

Region A

Region B

Region C

Dielectric Constant

0 m

5 m (16.4 ft) 7,5 m (24.6 ft)

10 m (32.8 ft)

15 m (49.2 ft)

20 m (65.6 ft)

Maximum Distance

30 m (98.4 ft)

CALM

No waves, storage

Possible

SENTRY-

go to Step 3.

Possible

SENTRY-

go to step 3.

APEX APEX APEX

1.5 to 4.0

Region

Surface Quality

MOVING

Mild rolling, no splashing, surface unbroken

Possible

SENTRY-

go to step 3.

APEX APEX

Dielectric Constant

4.0 to 10.0

Region

Dielectric Constant > 10.0

APEX

Region

(1)

TURBULENT

Heavy agitation, vapors, filling, splashing, or reactions

Step 3. Tank Geometry

YES APEX Sentry NO APEX only

NOTE: To meet most telecommunications requirements, the APEX and APEX Sentry Radar Gauges must be installed on enclosed or vented metal tanks. However, other tank types may be approved in country of final destination. Refer to product manual (document number 00809-0100-4731) for detailed information.

Is flange height (A)  0,5 m (19.6 in)?

— AND —

Is the radar beam free of any obstructions, such as fill tubes, baffles, or exposed agitators?

* See “Antenna Selection

Guidelines” on page A-1

LEVEL-APEX_07A, APEX_08A, APEX_011A

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Components of the APEX and APEX Sentry Radar Gauges

Figure 1-1. Cross-sectional View of the APEX Radar Gauge

The top of the APEX and APEX Sentry Radar Gauges is an aluminum gauge housing (see Figure 1-1). The gauge housing includes advanced radar electronics for signal processing.

The radar electronics is the heart of the gauge. It produces an electromagnetic wave by using an oscillator that converts direct current (dc) power into a radar signal. It also receives the return signal.

The radar signal passes from the electronics through a waveguide containing an alumina ceramic process barrier. The waveguide is the entire path from the electronics to the antenna.

The antenna is a cone-shaped device made of stainless steel. The antenna controls the signal beamwidth by helping to keep the radar signal focused on its target (the product in the tank) so it does not spread out over the entire vessel and give false echoes. A larger antenna provides a more focused, narrow beam. (Refer to Appendix A: Reference Data for further information regarding beamwidth.)

Radar Electronics

Aluminum

Gauge

Housing

Waveguide

Flange

Alumina Ceramic

Tef lon Vapor Seal

Antenna

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APEX™ and APEX Sentry™ Radar Gauge

SYSTEM ARCHITECTURE

Figure 1-2. APEX System Architecture and Display Options

The output of the APEX and APEX Sentry Radar Gauges is a 4–20 mA analog signal superimposed with a digital HART signal. As a result, the primary variable (4–20 mA output) can be configured to represent either level (APEX and APEX Sentry Radar Gauges) or calculated volume (APEX Radar Gauge only), with up to three additional variables available through the HART signal.

In addition to using the HART Communicator, you can view level and volume variables using an optional Integral Display on the gauge or a Model 751 Field Signal Indicator as a remote display (see Figure 1-2).

Optional

Integral Display

Level: 5.10 m

4 – 2 0

Level=

5.10 m

H A R T

S i

g n a l

Level: 5.10 m

Model 751 Field Signal Indicator

HART

Communicator

Control System

Level: 5.10 m

LEVEL-0006B

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APEX™ and APEX Sentry™ Radar Gauge

APEX /Hybrid System Overview (APEX Radar Gauge Only)

Figure 1-3. Hybrid System Option

To maximize the number of available on-line inventory measurements, you can install and combine an APEX Radar Gauge with a Rosemount industry-leading pressure transmitter to create a hybrid system (see Figure 1-3). A hybrid system offers the best advantages from both level-based and pressure-based tank gauging systems:

• Offers all the advantages of the APEX and HTG technologies

• Provides level, volume, mass, and true average

density measurements

• Enhances plant safety since no manual operations are necessary

• Handles traditional problems such as density stratification

For further installation details, please see page 2-1, and refer to the certified wiring diagrams provided.

APEX

Radar Gauge

Model 3201

HIU

MCAP

Output

HART

Communicator

Addressing Concerns about Exposure to The APEX and APEX Sentry Radar Gauges

Optional

RTD

Optional Pressure Transmitter

RS 485 RS 232 Output

Model 3402 AIM

The Federal Communications Commission has issued a bulletin called

Questions and Answers About Biological Effects and Potential Hazards of Radio frequency Radiation (OET Bulletin No. 56, Third Edition, January

1989). This document states a recommended power density limit of 5 mW/cm

in the frequency range of 1.5–100 GHz. This limit is based on a 1982

ANSI guideline for a time-averaged exposure for humans.

The maximum power density emitted from APEX and APEX Sentry Radar Gauges is approximately 1.1 mW/cm When the gauge is mounted in a metal vessel, the emissions external to the vessel are much lower than the 1.1 mW/cm

, which is below the ANSI guideline.

measured at the antenna.

For additional information about the safety of radar signals, see Appendix A: Reference Data.

LEVEL- 2510_04A

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SERVICE SUPPORT If you have reason to believe that your APEX or APEX Sentry Radar Gauge

may need to be returned for service, please contact a Level Applications Support Specialist at Rosemount Customer Central (1-800-999-9307). They will help you determine the best course of action, and may transfer you to either an Order Administrator or to the Rosemount North American Response Center (NARC) to arrange the return of your gauge for service or repair.

NOTE

Most radar problems encountered in the field are applications-related, and can best be dealt with while the gauge is installed.

The representative arranging the return will ask for product model and serial numbers, and will provide a Return Material Authorization (RMA) number. The center will also ask for the name of the process material to which the product was last exposed. If the material to which the product was last exposed is 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 products.

The representative arranging your return will detail the additional information and procedures necessary to return products exposed to hazardous substances.

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Section 2 Installation

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

Before You Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-3

Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-4

Vessel Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-7

Process Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-16

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-20

Mounting the Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-21

Electrical Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-22

Electrical Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-24

Wiring Optional Gauge Devices . . . . . . . . . . . . . . . . . . . . page 2-29

Powering Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-33

NOTE

All information included refers to both the APEX Radar Gauge and the APEX Sentry Radar Gauge unless otherwise stated.

This section contains instructions for installing the APEX and APEX Sentry Radar Gauges, including gauge mounting, wiring, and field configuration using the APEX integral display or a HART Communicator.

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Reference Manual

00809-0100-4731, Rev FA

APEX™and APEX Sentry™ Radar Gauge

April 2003

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.

Explosions could result in death or serious injury:

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

Do not remove the gauge cover in explosive atmospheres when the circuit is alive.

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 APEX Radar Gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

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BEFORE YOU INSTALL Follow these steps for proper installation:

Review Installation

Considerations

(see page 2-4)

Check Processor

Switches

(See page 2-22)

Review Electrical

Considerations (See page 2-24)

Mount Gauge

(See page 2-21)

Wire Gauge

(See page 2-22)

Wire Optional Devices

(See page 2-29)

Make sure covers and

conduit connections

are tight; plug unused

conduit entry

Power Up Gauge

(See page 2-33)

Configure Gauge

(See page 3-1)

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CONSIDERATIONS This section includes information you should consider before installing the

APEX and APEX Sentry Radar Gauges in the field. It includes information on the following:

• Telecommunications agency requirements

• Unpacking the gauge

• Mounting requirements

• Vessel and process characteristics to consider

For information about configuring the radar gauge using a HART Communicator, refer to Section 3: Configuration.

Telecommunications Agency Requirements

Rosemount APEX and APEX Sentry Radar Gauges have been approved for installation in closed metal tanks, including those that are vented to the atmosphere. (See "Tank Requirements" below.) Tanks must be closed (or vented) to contain radar emissions which can otherwise interfere with aeronautical aviation. Installation shall be done by trained installers. The radar gauges must be securely bolted to a standard tank flange in strict compliance with the manufacturer’s instructions.

Failure to properly install the device could constitute an impermissible modification of the device. In such an event, the responsibility is placed on the modifying party to ensure compliance with telecommunications regulations, and Rosemount shall have no liability whatsoever resulting from unauthorized installation of the device.

Operation Requirements

The use of this device is on a “no-protection, no-interference” basis. That is, the user shall accept government operations of high-powered radar in the same frequency band which may interfere with or damage this device. On the other hand, devices found to interfere with Government operations will be required to be removed at the user’s expense.

APEX and APEX Sentry Radar Gauges installed in the United Kingdom operate between 24.15-26.05 GHz. All other APEX and APEX Sentry Radar Gauges operate between 24.05 GHz and 26.05 GHz.

In certain countries, the radar gauge must be switched off when opening the access door to the tank. Any usage in tanks made of non-metallic materials is prohibited.

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Underground tanks with all exposed surfaces metallized are sufficient to contain radar emissions.

Tank Requirements

In the United States only, APEX and APEX Sentry Radar Gauges may also be installed on enclosed or vented concrete tanks with a minimum wall thickness of 2.5 inches.

In purchasing an APEX or APEX Sentry Radar Gauge, you agree to install the device in accordance with these conditions.

At the time of this printing, Rosemount Inc. has received the appropriate telecommunications approval for sale in the countries shown on page A-13.

If you have any questions about what constitutes proper installation, please contact Rosemount Customer Central at 1-800-999-9307.

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APEX™and APEX Sentry™ Radar Gauge

Unpacking the APEX and APEX Sentry Radar Gauges

Figure 2-1. APEX Radar Gauge

1. Remove the gauge from the shipping container, taking care not to damage the contents.

2. Place the gauge on its side on a flat surface as in Figure 2-1.

NOTE

Do not stand the radar gauge upright on its antenna. Be careful not to damage any part of the antenna during bench inspection or installation.

3. Inspect the unit and report any shipping damage to the carrier.

RADAR-003AB

Installation Considerations

Before you install an APEX or APEX Sentry Radar Gauge, be sure to consider your specific mounting requirements, vessel characteristics, and process characteristics. Review the following information to ensure a trouble-free, safe, and accurate installation.

The gauge has an Installation Category II (Overvoltage Category) with pollution degree 2 classification.

Process Characteristics Dielectric Constant

Dielectric constant is a measure of a material’s ability to reflect a radar signal. Materials with dielectric constants below 3.0 reflect only a small fraction of the radar signal. Therefore, special care must be taken when measuring low dielectric fluids.

The gauge can measure fluids with a dielectric constant as low as 1.8 if vessel conditions are favorable. For example, water-based compounds tend to have high dielectrics (water has a dielectric of approximately 80), while hydrocarbons are low. In cases with low dielectrics, it is important to verify that the dielectric is high enough for radar to measure. For information on dielectric constants when using an APEX Radar Gauge, refer to Table 2-1 on page 2-6. If you are unable to determine the dielectric constant for your process, or if you are measuring a process with a dielectric constant lower than 3.0, contact Rosemount Customer Central at 1-800-999-9307 for assistance.

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Table 2-1. Sample list of dielectric constants

Dielectric Constant Ranges for Chemicals Listed

Less Than 1.8 1.8 to 4.0 4.0 to 10.0 10.0 to 15.0 15.0 to 20.0 More than 20.0

carbon dioxide acetylene acetic acid benzyl alcohol ammonia acetone cyclopentane asphalt bromobutane butyl nitrate butanol ethanol ethylene benzene butyl alcohol carveol cyclohexanol ethylene glycol methane butane chlorobenzene creosol diacetone alcohol glycerine jp4 (military fuel) carbon tetrachloride chloroform dimethyl oxalate dichloro ethane glycol propane cocaine chlorotoluene ethylene chloride isopropyl alcohol hydrazine

freons cresol hexanol lactic acid hydrogen peroxide kerosene dibutyl phtalate iodine methylamine hydrogen cyanide napthalene dichlorobutane methylamine methyl ethyl ketone latex octane ethylamine phenol nitroglycerin methanol oleic acid nicotine pyridine sulfur dioxide molasses petroleum oils phosphorus tripropyl phosphate propanol stearic acid phosgene vinyl isocyanate sorbitol styrene sulfur water sulfur toluene diisocyanate toluene vegetable oils

April 2003

Foam and Vapors

Foam may affect the gauge performance because it can reduce the radar signal being reflected. The effect is highly dependent on the particular characteristics of the foam. In general, the APEX Radar Gauge reads the top of the foam if it is sufficiently reflective. The APEX Sentry Radar Gauge is not for use in applications with foam.

Changing Density, Temperature, or Pressure

The level accuracy is not affected by changes in the density, temperature, or pressure of the product.

Turbulence or Vortices

The gauge uses advanced signal processing, reducing the effects of turbulence and vortices. However, the greater the turbulence or vortex the larger the effect because they disturb the product surface where the signal is being reflected. With vortices caused by agitators, you need to be aware of the “swell” effect. That is, the product surface will rise in the vessel when sufficiently agitated and the radar output will measure this rise. The APEX Sentry Radar Gauge is not for use in turbulent applications. Refer to Figure 2-18 on page 2-22 for further information.

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Coating, Condensate, or Corrosion

The functionality of the gauge may be affected by coating, condensate, or corrosion, depending on the type of process in the vessel. When conditions produce heavy condensation or coating, or when the process is corrosive to 316 SST or alumina ceramic, Rosemount suggests using a process “window” with the gauge to protect the antenna and waveguide.

VESSEL CHARACTERISTICS

Figure 2-2. Vessel Characteristics That May Affect the Level Reading

Mount the gauge where it will have a clear view of the tank surface, but not in the top center of the vessel (Figure 2-10).

LEVEL-SEETHEPROCESS.TIF

POOR PLACEMENT PREFERRED PLACEMENT

NOTE

When using an APEX Sentry Radar Gauge, it is necessary for 100% of the beam cone to contact the liquid surface. Refer to Table 2-2 on page 2-8 for further information.

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APEX™and APEX Sentry™ Radar Gauge

Table 2-2. Beamwidth versus Distance from flange face to tank bottom

Distance (D)

from gauge

2-in. Antenna 3-in. Antenna 4-in. Antenna

ft (m) ft (m) ft (m) ft (m) 2 (0.6) 0.4 (0.12) 0.2 (0.07) 0.2 (0.06) 4 (1.2) 0.8 (0.25) 0.5 (0.15) 0.4 (0.11) 6 (1.8) 1.2 (0.37) 0.7 (0.22) 0.6 (0.17) 8 (2.4) 1.6 (0.49) 1.0 (0.29) 0.7 (0.22)

10 (3.0) 2.0 (0.62) 1.2 (0.37) 0.9 (0.28) 15 (4.6) 3.0 (0.93) 1.8 (0.55) 1.4 (0.42) 20 (6.1) 4.1 (1.23) 2.4 (0.73) 1.8 (0.56) 25 (7.6) 5.1 (1.54) 3.0 (0.92) 2.3 (0.70)

30 (9.1) 6.1 (1.85) 3.6 (1.10) 2.8 (0.84) 35 (10.7) 7.1 (2.16) 4.2 (1.28) 3.2 (0.98) 40 (12.2) 8.1 (2.47) 4.8 (1.46) 3.7 (1.12) 45 (13.7) 9.1 (2.78) 5.4 (1.65) 4.1 (1.26) 50 (15.2) 10.1 (3.09) 6.0 (1.83) 4.6 (1.40) 55 (16.8) 11.1 (3.40) 6.6 (2.01) 5.1 (1.54) 60 (18.3) 12.2 (3.70) 7.2 (2.20) 5.5 (1.68) 65 (19.8) 13.2 (4.01) 7.8 (2.38) 6.0 (1.82) 70 (21.3) 14.2 (4.32) 8.4 (2.56) 6.4 (1.96) 75 (22.9) 15.2 (4.63) 9.0 (2.75) 6.9 (2.10) 80 (24.4) 16.2 (4.94) 9.6 (2.93) 7.4 (2.24) 85 (25.9) 17.2 (5.25) 10.2 (3.11) 7.8 (2.38) 90 (27.4) 18.2 (5.56) 10.8 (3.30) 8.3 (2.52) 95 (29.0) 19.2 (5.86) 11.4 (3.48) 8.7 (2.66)

100 (30.5) 20.3 (6.17) 12.0 (3.66) 9.2 (2.80)

Radius (r) from Flange Centerline to

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General Vessel Considerations

Figure 2-3. User-Programmable “Null” Zones for APEX and APEX Sentry Radar Gauges

Heating Coils and Agitators

If the vessel contains heating coils or agitators (see Figure 2-2), they may create noise when the radar signal bounces off of them. The noise level is less if the signal contacts a non-flat surface (for example, round pipe, angled blade, etc.) that causes the signal to scatter rather than directing it back to the antenna. To avoid these problems, try to make sure that heating coils or agitators are below the minimum product level or within the null zones (see Figure 2-3 on page 2-9 and Figure 2-3 on page 2-9).

Upper

Null

Zone

Radar gauge will not

measure above this line.

Reference

Gauge Height

High Level Switch

URV (20 mA)

LRV (4 mA)

Lower

Null

Zone

-19.6 in. (-0.5 m)

Radar gauge will not measure below this line.

Reference Line

Cables, Floats, Baffles, or Trays

Cables, floats, baffles, or trays can introduce noise into the radar signal. A vertical cable or rounded surface causes minimal effect because the radar signal is scattered rather than directed back to the antenna. To reduce the amount of noise from cables, floats, baffles, or trays, position the gauge such that the beam will not contact them.

LEVEL-0579A

2-9

APEX™and APEX Sentry™ Radar Gauge

Inlet Pipes or Flows

The level reading may be affected by the process flowing into the vessel. To lessen the effects, mount the radar gauge so the beam signal does not contact the inlet pipe or flow (Figure 2-2).

Center of tank installations should be avoided, off-center installations are preferred (Figure 2-4).

Figure 2-4. Example of off center tank installation.

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NOTE

Center of the tank installations should be avoided.

Specific Tank Shapes Spherical Vessel Considerations

Figure 2-5. Spherical vessel installation

NOTE

Spheres should never have top-center installation options.

EXNEW/COLUMNALIGHN.TIF

SPHEREALIGN_AB.TIF

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Figure 2-6. Possible horizontal vessel mounting options

APEX™and APEX Sentry™ Radar Gauge

Horizontal Vessel Mounting Surface

Horizontal cylinders often only have top-center connection options. If this is the case, then the end of the antenna should be down into the vessel or mounted in a widened area such as a manhole cover. Recessing the antenna into a nozzle is not recommended (Figure 2-6).

APEXNEW_CYLINDERS.TIF

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APEX™and APEX Sentry™ Radar Gauge

Stilling Well, Bypass Cage, and Bridle Connection Considerations

Apex and Apex Sentry can be mounted on bypass cages, bridles, and stilling wells. Non-slotted stilling wells are preferred. If holes must be present, then 1 inch diameter holes approximately 0.5 meters apart are acceptable.

Higher dielectric materials (such as water-based compounds) in a stilling well or bypass cage will create a strong return signal to the gauge. For this reason smaller antennas should be used. Lower dielectric materials, (such as hydrocarbons and solvents) will attenuate the signal so the antenna size should be as large as possible for the bypass pipe or stilling well.

Figure 2-7. 3 inch or 4 inch bypass cages can be used.

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20mA

4mA

BYPASSCONNECTIONS.TIF

• Stilling wells should be non-slotted. The signal will be stronger because it is contained within the stilling well. With higher dielectric fluids it is possible for the signal to be too strong. If this is the case, try using a smaller antenna.

• At the low end of the well or bridle, especially with joints or bends in pipes the level or distance may be incorrect due to false reflections. Fill with fluid to cover the area.

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Nozzle Considerations Non-horizontal Mounting Surface

In most applications, the gauge should be mounted perpendicular to the level surface. It is acceptable to have the mounting flange up to 2° off from perpendicular. In applications with low dielectric constants or long measuring ranges, mounting the radar gauge with the flange horizontal to the product level becomes more important in order to receive an adequate return signal (Vessel Characteristics on page 2-7). For more information regarding mounting considerations, contact Rosemount Customer Central at 1-800-999-9307.

Figure 2-8. Example of Non-horizontal mounting

APEXNEW/HORIZONTALMOUNTING.TIF

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APEX™and APEX Sentry™ Radar Gauge

Tank Nozzle Considerations

Nozzles should be wide open and smooth without any intersecting lines. The nozzles should not be too long because it will cause a reflection and attenuate signal. Valves can be used as long as they are open and smooth (no reducers, lips, or rough edges).

• Nozzles should be open and smooth; no weld lines or ledges should protrude inside the nozzle, and there should be no restrictions.

• Maximum length of nozzle: 1m for 3 and 4 inch antennas, and 0.3m for 2 inch antennas.

• Full port valves may be used.

• The antenna can be recessed in the nozzle or can extend into the vessel. However, the end of the antenna should never be even with the roof of the tank (Figure 2-9).

Figure 2-9. Tank Nozzle Recommendation

Recommended Not Recommended

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Figure 2-10. Example of multiple nozzle function Note: Do not install an APEX Radar Gauge where there is a T-intersection in the mounting nozzle.

Note: Antenna must not be even with the roof tank.

APEX_CONEALIGNBA.TIF

The gauge should be mounted so antenna extends 1 inch or more into the tank, or is recessed into the nozzle by 1 inch or more.

APEX_CONEALIGN.TIF

GASPURGE_AB.TIF

2-14

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Figure 2-11. Beamwidth vs. Distance from APEX and APEX Sentry Radar Gauge to Tank Bottom

APEX™and APEX Sentry™ Radar Gauge

Beam Angle

Example: the beam radius (r) at the bottom of a 10-foot (3.05 m) (D) vessel would be 0.9 ft (0.28 m) for a 4-inch antenna.

LEVEL-0038A

Antenna Size Beam Angle

2-in. 22.9° 3-in. 13.7° 4-in. 10.5°

NOTE

A larger antenna yields a tighter and more concentrated signal. This is an important consideration when using the gauge in various applications with such characteristics as agitation and/or low dielectric constants.

2-15

APEX™and APEX Sentry™ Radar Gauge

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April 2003

PROCESS WINDOWS The process window typically consists of a PTFE cone that goes below the

gauge antenna and fits in the tank nozzle (see Figure 2-12).

(1)

Condensation and coating run off of the cone and corrosive processes cannot reach the antenna. Window installation requires a spool piece that surrounds the antenna. (See page A-9 for further information.) The length of the spool

piece should allow the end of the antenna to be within 1 inch (25mm) of the window.

Install the window as shown on page 2-16 and page 2-17.

Figure 2-12. Using a PTFE Process Window with the APEX Radar Gauge

Spool Piece

PTFE Window

and Process

Wetted O-ring

APEX Radar Gauge

Metal Gasket

Tank Nozzle

LEVEL-3750A01N

NOTE

Make sure the metal gaskets are installed and the flange bolts are torqued properly to keep moisture out of the spool piece. Bolts should be re-tightened 24 to 48 hours after initial installation to ensure a tight seal, to prevent moisture from entering the area, and to meet the pressure needs.

Consult the factory for temperature and pressure limits when using a process window. See page A-6 for APEX Radar Gauge and process window pressure and temperature ratings.

Installing without a Process Window

If you are installing the gauge without a process window, refer to Figure 2-13 and follow these steps:

1. Place a gasket on top of the tank flange. (Choose a gasket type according to process compatibility.)

2. Position the antenna into the tank flange standoff.

3. Check to see that the gauge is positioned so the conduit openings face the proper direction for wiring.

4. Secure the gauge flange to the tank flange.

5. Tighten the flange bolts when the gauge is properly positioned.

2-16

(1) Further window information is detailed on page 2-16 and page 2-17.

Reference Manual

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Figure 2-13. Diagram for Installation without a Process

Window

APEX™and APEX Sentry™ Radar Gauge

NOTE

The tightening torque is dependent on the strength of the stud bolts and the pressure rating of the vessel.

APEX Radar Gauge

Mounting

Bolt/Nut

Customer-Supplied Gasket

Process Flange

Installing with a Process Window

If you are installing the gauge with a process window, refer to Figure 2-14 and follow these steps:

NOTE

Make sure the metal gaskets are installed and the flange bolts are torqued properly to keep moisture out of the spool piece. Bolts should be re-tightened 24 to 48 hours after initial installation.

1. Seat the process O-ring (7) into the groove on the window (6), and center the window on the process flange without letting the O-ring slip out of its position in the groove.

2. Make sure that the EMI gasket (8) is seated in the stainless steel window ring (5), place the window ring over the window, and center a spiral-wound gasket (4) over the window ring.

3. Center the standoff pipe or spool piece (2) on the flange. Put two of the bolts (9) in opposite sides and hand tighten. Look inside the spool piece to verify that the Teflon window is centered on the flange. (See Figure 2-15 on page 2-19.)

4. Once the Teflon window is centered, use the rest of the mounting bolts and nuts to finish attaching the spool piece to the tank flange. A misaligned window will severely hinder gauge performance. Tighten the bolts to 75-100 ft-lbs (102-136 N-m).

NOTE

Visually inspect down the center of the spool to assure the window is centered.

2-17

APEX™and APEX Sentry™ Radar Gauge

Figure 2-14. Diagram for Installation with a Process

Window

1. APEX Radar Gauge

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April 2003

9. Mounting Bolts/Nuts

5. SST Window Ring

8. EMI O-Ring

7. Process O-Ring

4. Spiral-wound

Gasket (non-wetted)

2. Standoff Pipe or Spool Piece (non-wetted)

4. Spiral-wound Gasket (non-wetted)

6. Teflon Window

Process

O-Ring

3. Process Flange

Cross-Section of

Installed Process Window

Spiral-wound Gasket

SST Window Ring

Teflon Window

EMI O-Ring

5. Center the second spiral-wound gasket (4) on top of the standoff pipe/spool piece.

6. Attach the radar gauge(1) to the standoff pipe or spool piece using the bolts and nuts as shown. Tighten the bolts to 75-100 ft-lbs (102-136 N-m).

3700_2005A01A

2-18

NOTE

Intermittent purge lines are acceptable. Either purging onto the antenna to flush away material or onto the window for periodic cleaning. See Figure 5-1 on page 5-3 for more detailed information.

NOTE

When a process window is used, the window and spool piece heights will need to be incorporated into the Reference Gauge Height and Upper Null Zone. Refer to the definitions on page 3-8 for more information.

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Figure 2-15. Window Centering – Radar Gauge with Installed Isolation Window

Correctly Installed Incorrectly Installed

APEX™and APEX Sentry™ Radar Gauge

NOTE

It is possible to use a standoff pipe/spool piece supplied by a source other than Rosemount; however, it is suggested that when the APEX and APEX Sentry Radar Gauges are mounted, the end of the antenna be no more than 1-inch from the face of the window. For antenna lengths, refer to dimension “D” in Dimensional Drawings on page A-9.

Tank Nozzle

Common Center

Line for Antenna

and Window

Spool Piece

Correctly Aligned

PTFE Window and Process Wetted O-ring

Tank Nozzle

Center Lines for

Antenna and Window

should be the same

Spool Piece

Incorrectly Aligned

PTFE Window and Process Wetted O-ring

The APEX and APEX Sentry Radar Gauges are typically factory configured, so in most situations, gauge adjustments are minimal. To ensure proper operation, review the following information before installing the gauge. If, however, your gauge was not configured at the factory, or if you need to reconfigure the gauge for any reason, please note that the gauge can be configured on the bench prior to installation or in the field. (Refer to Section 3: Configuration.)

2-19

APEX™and APEX Sentry™ Radar Gauge

MECHANICAL INSTALLATION

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April 2003

Mounting Considerations

Figure 2-16. APEX and APEX Sentry Radar Gauge Access Clearances

Flange Sizes

The radar gauge mounts on the top of a vessel using a 2-, 3-, 4-, or 6-inch ASME B 16.5 (ANSI) Class (DN 50, DN 80, DN 100, or DN 150) flange. (Flange size is specified at the time of order.)

Access Clearances

Recommended access clearances for the gauge are shown in Figure 2-16.

18 in. (457mm)

15 in.

(381 mm)

LEVEL-0005A

Wall, Nozzle, or Standoff Clearance

If the radar signal comes in contact with a wall, nozzle, or standoff, it may cause noise in the level signal. Even though the advanced signal processing of the radar gauge is designed to filter out this noise, try to keep the noise level at a minimum by installing the gauge an acceptable distance from obstructions. To ensure the proper clearance for your vessel height and beamwidth, review Table 2-2 on page 2-8.

2-20

NOTE

When installing an APEX Sentry Radar Gauge, refer to Figure 2-17 on page 2-21 for further mounting requirements. 100% of the beam cone must contact the liquid surface for accurate measurement.

NOTE

Do not mount the radar gauge in the top-center of a vessel. Off-center mounting is preferred.

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APEX™and APEX Sentry™ Radar Gauge

MOUNTING THE GAUGE NOTE

If the electronics housing needs to be rotated, do not un-bolt the adapter-to-housing bolts! Either un-bolt the flange bolts or the

adapter-to-flange bolts and rotate as needed. If the housing is rotated at the housing-to-adapter connection, the gauge will be irreparably damaged, and the warranty invalidated. (See Figure 2-17.) Flange bolts are suggested for use; performance may be affected if adapter bolts are used.

Figure 2-17. Rotating the Electronic Housing

Housing

Adapter

Flange

Mount the radar gauge vertically on a 2-, 3-, 4-, or 6-inch ANSI Class (DN 50, DN 80, DN 100, or DN 150) flange on top of the vessel. Make sure only qualified personnel perform the installation.

DO NOT UN-BOLT HERE

Un-bolt flange bolts or adapter-to-flange bolts to rotate

(flange bolts are recommended, as adapter-to-flange bolts may affect performance)

LEVEL-0021B

NOTE

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

Refer to Safety Messages on page 2-2 for more information.

2-21

APEX™and APEX Sentry™ Radar Gauge

ELECTRICAL INSTALLATIONS

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April 2003

Check Processor Switches

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 APEX or APEX Sentry electronic boards. The gauges are calibrated with particular boards; swapping boards will negatively affect accuracy.

Table 2-3.

Switch Bank Description Default Setting Position Settings

Switch 1 4–20 mA Alarm Output High (ON) ON = High, OFF = Low Switch 2 Security Write Protection Disabled (OFF) ON = Enabled, OFF = Disabled

APEX Radar Gauge Switch Settings

Table 2-4. Analog Output: Standard Alarm Values vs. Saturation Values

Level 4–20 mA Saturation Values 4–20 mA Alarm Value

Low 3.9 mA 3.75 mA High 20.8 mA 21.75 mA

Table 2-5. Analog Output: NAMUR-Compliant Alarm Values vs. Saturation Values

(option codes C4 or CN)

Level 4–20 mA Saturation Values 4–20 mA Alarm Value

Low 3.8 mA 3.6 mA High 20.5 mA 21.0 mA

The gauge monitors its own operation. This automatic diagnostic routine is a timed series of checks repeated continuously. If the diagnostic routine detects a failure in the gauge, the 4–20 mA output is driven upscale (high) to 21 mA or downscale (low) to 3.75 mA, depending on the position of Switch 1.

Figure 2-18. Radar Gauge Processor Switch Settings

Security write protection prevents unauthorized access to configuration data through the optional integral display or HART Communicator.

4–20 mA Alarm

Output Switch

Microprocessor

Chip

PROCESSOR BOARD

Security Write Protection Switch

LEVEL-0025A

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APEX™and APEX Sentry™ Radar Gauge

To set the switches, follow these steps:

1. To access the switch bank on the microprocessor board (Figure 2-18), remove the cover opposite the terminal side, or remove the optional integral display (if installed) from the gauge. Do not remove the gauge cover in explosive atmospheres when the circuit is alive.

2. To set the 4–20 mA alarm output to low, move Switch 1 to the OFF position. High (ON) is the factory default setting (see Figure 2-18).

3. To enable the security write protection feature, move Switch 2 to the ON position (top). The OFF (low) option is the factory default setting (see Figure 4-1).

4. Reinstall the display (if necessary) or replace the cover.

Electrical Considerations Conduit Connections

The electronics housing has two ports for Adapters are also available for PG 13.5 or CM20 conduit. These connections are made in a conventional manner in accordance with local or plant electrical codes. Be sure to properly seal unused ports to prevent moisture or other contamination from entering the terminal block compartment of the electronics housing.

/4–14 NPT conduit connections.

NOTE

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

NOTE

In some applications it may be necessary to install conduit seals and arrange for conduits to drain to prevent moisture from entering the wiring compartment.

Grounding the Gauge Housing

The electronics housing should always be grounded in accordance with national and local electrical codes. Use the equipment only as specified in this manual. Failure to do so may impair the lightning and transient protection provided by the equipment. The most effective grounding method is to connect the grounding lug on the gauge directly to earth ground with 1 ohm or less impedance.

The Internal Ground Connection (Protective Ground Connection), located inside the FIELD TERMINALS side of the electronics housing, is the Internal Ground Connection screw. This screw is identified by a ground symbol: .

NOTE

Grounding the gauge case via threaded conduit connection may not provide sufficient ground.

Refer to Safety Messages on page 2-2 for more information.

2-23

APEX™and APEX Sentry™ Radar Gauge

Transient Protection

The APEX and APEX Sentry Radar Gauges include transient protection and comply with IEC 61000 4-5. Transient protection increases the ability of the APEX and APEX Sentry Radar Gauges to withstand electrical transients induced by lightning, welding, or heavy electrical equipment.

External Power Shut-off Switch

The wiring should include an external power shut-off switch or an external circuit breaker. This device should be located near the gauge.

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April 2003

ELECTRICAL CONSIDERATIONS

APEX and APEX Sentry Radar Gauges accept ¾–14 NPT male conduit fittings. PG 13.5 and CM 20 adapters are optional. If necessary and permissible, use flexible conduits close to the gauge.

The gauge output is 4–20 mA superimposed with a HART signal and shielded, twisted pair wiring is required.

Cable Selection Power supply cables must be suitable for the supply voltage and approved for

use in hazardous areas, where applicable. For instance, in the U.S., explosion-proof conduits must be used in the vicinity of the vessel. Use 12 AWG to 18 AWG wire. Using smaller than 18 AWG wire can cause too much voltage drop to the gauge. Refer to Figure 2-19 on page 2-25 to determine the correct wire size according to the length of the wire run and available supply voltage.

Use wire rated for the proper temperature application. For connections in ambient temperatures above 140 °F (60 °C), use a wire rated for 176 °F (80 °C).

Power Requirements Screw terminals in the radar gauge provide connections for dc or ac power,

secondary inputs and outputs, grounding, and loop testing.

Gauges cannot share common power supplies in a series. Each gauge needs to have separate wire pairs from the power supply. The loop wires can be multidropped. Approximately 0.44 amp is required for running the gauge and 1 amp is required for startup. Each APEX and APEX Sentry Radar Gauge consumes approximately 8 watts.

Avoid contact with leads and terminals.

The operating current will vary depending on power supply size. For example, the operating current using a 24 vdc supply will equal 0.33 amps:

NOTE

The gauge requires an additional power supply (as indicated in Table 2-6 on page 2-25) to power the 4–20 mA loop.

NOTE

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

Refer to Safety Messages on page 2-2 for more information.

2-24



---------- - 0.33amps=



24V

Reference Manual

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Figure 2-19. Main Power Supply Voltage vs. Wire Length Required

APEX™and APEX Sentry™ Radar Gauge

Table 2-6. APEX and APEX Sentry Radar Gauge Power Requirements

Power Supply dc ac

Main Power Supply 18–36 V dc 90–250 V ac 50/60 Hz

Loop Power Supply for 4–20 mA 10.5–55 V dc 10.5–55 V dc

45.0

40.0

35.0

18 AWG

30.0

16 AWG

25.0 12 AWG

20.0

Power Supply Voltage in Volts

15.0

300

0 (0)

200

100

(60)

(30)

Approximate Wire Distance in Feet (Meters)

(91)

400 (121)

500 (153)

600 (182)

700 (213)

800 (243)

900 (274)

1000 (304)

Power vs. Distance Requirements

Hazardous Locations APEX and APEX Sentry feature an explosion-proof housing. Each gauge is

clearly marked with a label indicating the certification it carries. See Appendix B: Product Certificates for specific approval information.

DC Main Power Supply with 4–20 mA Loop Power Supply

Wire the APEX and APEX Sentry Radar Gauges as shown in Figure 2-20, using an 18–36 V dc main power supply. Loop power is required for the 4–20 mA/HART output. Use a 10.5–55.0 V dc secondary power supply for the 4–20 mA/HART loop output. Refer to Power Requirements on page 2-24 to determine the power supply voltage required in the control room. Make sure the main power to the gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

LEVEL_APEX06A

Refer to Safety Messages on page 2-2 for more information.

2-25

APEX™and APEX Sentry™ Radar Gauge

Figure 2-20. DC Power Supply Connections with 4-wire Installation and Separate 4–20 mA Power Supply

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April 2003

10.5–55.0 V dc Power Supply

Indicator/DCS

APEX Radar

Gauge

(fused)

APEX Radar Gauge with Output Code 2 or

APEX Sentry Radar Gauge

10.5-55 V dc Supply

18-36 V

18-36 V dc

Main Power

Supply

Indicator/DCS

See note regarding grounding on page 2-23.

Main

NOTE

DC gauges can be configured as a 3 wire gauge if a jumper is used between the power supply and the loop wiring.

The power terminals are located under a sliding safety cover on the terminal blocks. This sliding cover exposes only one terminal at a time to guard against electrical shock. The safety cover must be left on while wiring the radar gauge. If the cover has been removed, the word “DANGER” appears near the terminals.

LEVEL-0032, 3700 -1501a01a

2-26

NOTE

When wiring multiple devices, run separate wire pairs to each radar gauge— do not “daisy chain” or use common return wiring configurations. In other words, while it is acceptable to multidrop gauges in the 4–20 mA loop, it is not acceptable to multidrop the power supply loops.

DC Main Power Supply Fuse Size and Type

Be sure to use the proper fuse size and type. Failure to use the appropriate fuse could result in improper operation or damage to the gauge.

The radar gauge with a dc power supply uses the following fuse size and type (Rosemount Part No. C53323-0107):

• 2 AG Fuse, 1A, 250 V, Fast Action

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APEX™and APEX Sentry™ Radar Gauge

NOTE

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

DC Main Power Supply with No Loop Power Supply

Figure 2-21. DC Power Supply Connections with no loop power supply

APEX Radar

Gauge

Indicator/DCS

You can also wire the gauge as shown in Figure 2-21, using one 18–36 V dc power supply capable of supplying 8 watts. Make sure the main power to the gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

NOTE

The APEX draws 1 amp at startup; it is not recommended that a DCS or channel card be used to power the gauge (the gauge has an operating draw of 0.375 amp using a 24 vdc supply).

APEX Radar Gauge with Output Code 2

or APEX Sentry Radar Gauge

Add Jumper

Indicator/DCS

Ground Terminal

(fused)

18–36 V dc Main

Power

Supply

10.5 W

The power terminals are located under a sliding safety cover on the APEX terminal block. This sliding cover exposes only one terminal at a time to guard against electrical shock. The safety cover must be left on while wiring the APEX gauge. If the cover has been removed, the word “DANGER” appears near the terminals.

Refer to Safety Messages on page 2-2 for more information.

18-36 V

dc Main

Power

See note regarding grounding on page 2-23.

LEVEL-0033, 3700 1501C01A

2-27

APEX™and APEX Sentry™ Radar Gauge

NOTE

For all radar gauges with output code 2 (intrinsically safe output), the negative 4–20 mA (HART) terminal is grounded to the electronics housing. Do not use another ground in the loop. In installations where the intrinsically safe output (output code 2) will be used, an isolated barrier is required.

NOTE

The APEX will operate on 18–36 V dc at its power terminals. Refer to Power Requirements on page 2-24 to determine the power supply voltage required in the control room.

NOTE

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

Reference Manual

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April 2003

AC Main Power Supply with 4–20 mA Loop Power Supply

Figure 2-22. AC Power Supply Connections with Separate 4–20 mA Loop Power

APEX Radar

Gauge

10.5–55.0 V dc Power Supply

Indicator/DCS

Protective

Earth

(Ground)

Conductor

Wire the gauge as shown in Figure 2-22, using a 90–250 V ac, 50/60 Hz power supply. Loop power is required for the 4–20 mA/HART output. Use an additional 10.5–55.0 V dc secondary power supply for the 4–20 mA/HART loop output. Make sure the main power to the gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

APEX Radar Gauge with Output Code 2

or APEX Sentry Radar Gauge

Ground Terminal

10.5–55.0 V dc Power Supply

(fused)

90-250 V ac,

50/60 Hz

Main Power

Indicator/DCS

(fused)

Protective

Earth

(Ground)

Conductor

90-250 V ac,

50/60 Hz

Main Power

Supply

LEVEL-0034, 0032AA.EPS

Refer to Safety Messages on page 2-2 for more information.

2-28

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APEX™and APEX Sentry™ Radar Gauge

The power terminals are located under a sliding safety cover on the terminal block. This sliding cover exposes only one terminal at a time to guard against electrical shock. The safety cover must be left on while wiring the gauge. If the cover has been removed, the word “DANGER” appears near the terminals.

NOTE

AC Main Power Supply Fuse Size and Type

Be sure to use the proper fuse size and type. Failure to use the appropriate fuse could result in improper operation or damage to the gauge.

The gauge with an ac power supply uses the following fuse size and type (Rosemount Part No. C53323-1104):

• 2 AG Fuse,

/8 A, 250 V, Time Delay

WIRING OPTIONAL GAUGE DEVICES

Model 751 Field Signal Indicator

NOTE

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

Optional devices that can be used with the APEX and APEX Sentry Radar Gauges include the Model 751 Field Signal Indicator, a 3- or 4-wire RTD (Resistance Temperature Detector), such as the Series 58C, 68, or 78. The APEX Radar Gauge can also be used in conjunction with a model 3201 HIU to form a hybrid system.

(APEX Radar Gauge and APEX Sentry Radar Gauge)

If the gauge is to be used with a Model 751 Field Signal Indicator, wire the gauge using one of the options shown in Figure 2-23. (If necessary, refer to the Model 751 Field Signal Indicator manual, 00809-0100-4378.) Make sure the main power to the gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

Refer to Safety Messages on page 2-2 for more information.

2-29

APEX™and APEX Sentry™ Radar Gauge

Figure 2-23. Wire Connection Options for the Model 751 Field Signal Indicator

APEX

Model 751 Field

Radar Gauge

Reference Manual

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April 2003

APEX

Radar Gauge

10.5-55 V dc, Power

Supply

REMOTE WIRING FOR MODEL 751 FIELD SIGNAL INDICATOR

10.5-55 V dc Power

Supply

Model 751 Field Signal Indicator

90–250 V ac

50/60 Hz

Main Power

10.5-55 V dc

ALTERNATE WIRING FOR MODEL 751

APEX Radar Gauge with Output Code 2

or APEX Sentry Radar Gauge

(fused)

Power

Supply

90–250 V ac,

50/60 Hz

Main Power

Supply

FIELD SIGNAL INDICATOR

Protective Earth

90–250 V ac

50/60 Hz

Main Power

Supply

Model 751 Field Signal Indicator

Ground Terminal

(Ground)

Conductor

LEVEL-0051/-0035, 3700 -1501D01A

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APEX™and APEX Sentry™ Radar Gauge

APEX/Hybrid System Installation (APEX Radar Gauge Only)

Figure 2-24. APEX Hybrid Installation

Model 3001C (PT) Top

Pressure Transmitter Hart

Poll Address: 3

Figure 2-24 and the wiring diagrams in Figures 2-23 are provided to detail the proper methods of wiring the following tank gauging architectures:

• Figure 2-24: APEX Hybrid System (APEX interfacing with a Model 3201 HIU and Model 3402 AIM architecture)

• Figure 2-24: HART Polling addresses

Based upon the specific type of system you are installing, Figures 2-23 through 2-25 should answer your installation wiring questions. For further details regarding each component of the system, please refer to each product’s individual manual.

Product Document Number

• Model 3001C Transmitters 00809-0100-4635

• Model 3201 HIU 00809-0100-4640

• Model 3202 SAM 00809-0100-4646

• Model 3402 AIM 00809-0100-4641

APEX Radar Gauge

Hart Poll Address: 10

Model 3201 (HIU)

Hydrostatic Interface Unit

Hart Poll Address: 0

Water bottom Probe

Hart Poll Address: 5

SMART RTD TEMPERATURE SENSOR HART POLL ADDRESS: 4

Model 3001C (PB) Bottom

Pressure Transmitter Hart

Poll Address: 1

(Optional)

Hart Communicator

Model 3402 (AIM) Application Interface Module

RS 232 RS 485

Outputs

OULEVEL-2510A04B

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APEX™and APEX Sentry™ Radar Gauge

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April 2003

3- or 4-Wire RTD (APEX Radar Gauge Only)

If your vessel is equipped with a 3- or 4-wire platinum 100 ohm RTD, wire the gauge as shown in Figure 2-25. Make a direct connection from the RTD to the gauge. The RTD may be mounted a maximum of 500 feet from the gauge.

1. Make sure the main power to the gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

2. Connect three RTD wires directly from the temperature element to the gauge. Avoid contact with leads and terminals.

3. Wire the sensor across the gauge terminals A and B and the loop compensation across B and C. Wires B and C are the same color code; wire A is a different color code. When using a 4-wire RTD, one wire (the same color as the wire connected to terminal A) is not used.

For more information about Rosemount RTDs, refer to Product Data Sheet No. 00813-0100-2654: Series 58C, 68, 68Q, and 78 Temperature Sensors, Assemblies, and Accessories.

NOTE

If RTD input is to be used, the gauge must have the RTD function enabled. This can be done at the factory, or it can be done in the field using a Model 275 Hart Communicator or Radar Configuration Tool (see page 3-18).

NOTE

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

Figure 2-25. Wire Connections for a 3- and 4-wire RTD

Leave unconnected from circuit

and ground and insulate

Refer to Safety Messages on page 2-2 for more information.

4 Wire RTD

18-35

VDC

3 Wire RTD

Red

WhiteWhiteRedRed

White

LEVEL-0036

2-32

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APEX™and APEX Sentry™ Radar Gauge

April 2003

POWERING UP Be sure to make all of the APEX or APEX Sentry Radar Gauge connections

before applying power to the system. Check the connections for the power to the gauge and the power supply for the 4–20 mA loop to be sure they are correct. Make sure the main power to the gauge is off and the lines to any other external power source are not powered while wiring the gauge.

Connect the gauge to either 18–36 V dc or 90–250 V ac 50/60 Hz power, depending on the model selected.

Power consumption by the gauge is approximately 8 watts.

After connecting power, configure the radar gauge using the APEX integral display (APEX Radar Gauge only), the hand-held Model 275 Hart Communicator (APEX and APEX Sentry Radar Gauges), or the Radar Configuration Tools (APEX and APEX Sentry Radar Gauges). The remainder of this section provides information about field configuration using the optional integral display.

NOTE

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

Refer to Safety Messages on page 2-2 for more information.

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APEX™ and APEX Sentry™ Radar Gauge

Section 3 Configuration

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

Basic Configuration Parameters . . . . . . . . . . . . . . . . . . . . page 3-2

Field Configuration Using the Integral Display Option . page 3-6

Model 275 HART Communication Option . . . . . . . . . . . . . page 3-15

AMS Configuration Tool Option . . . . . . . . . . . . . . . . . . . . page 3-21

Radar Configuration Tool (RCT) Option . . . . . . . . . . . . . . page 3-25

NOTE

All information included refers to both the APEX Radar Gauge and the APEX Sentry Radar Gauge unless otherwise stated.

The HART Communicator manual provides detailed instructions on the use and features of the HART Communicator. For information on all the capabilities of the HART Communicator, refer to the HART Communicator Product Manual (document 00809-0100-4275).

SAFETY MESSAGES Procedures and instructions 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.

Explosions could result in death or serious injury:

• Verify that the operating environment 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.

• Do not make connections to the serial port or NiCad recharger jack in an explosive atmosphere.

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

• Make sure only qualified personnel perform these procedures.

• 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.

As a matter of routine, the APEX Radar Gauge and all other equipment in your tank should be shut off prior to entering the tank.

www.rosemount.com

APEX™ and APEX Sentry™ Radar Gauge

BASIC CONFIGURATION PARAMETERS

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Key Measurement Values

Figure 3-1. Key Measurement Values

The values given in Figure 3-1 are key factors for installing and configuring the gauge. Please take a moment to familiarize yourself with the terms used below. These terms are used throughout this manual.

APEX or APEX

Sentry Radar

Gauge

Upper

Null Zone

Distance

URV

(20 mA)

Reference

Gauge

Process

Level

Empty

Tank

LRV

(4 mA)

Lower Null

Zone

Height

Reference Line

KEYVALUES.TIF

3-2

Default Values

Upper Null Zone Lower Null Zone

Minimum Value

Span (URV-LRV)

(1) See “Null Zones” on page 3-6.

(1)

19.6 in (0.5 m)

-19.6 in (-0.5 m)

19.6 in (0.5 m)

Reference Gauge Height

The reference line is a common point from which all level measurements are made. It is usually the bottom of the tank (see Figure 3-1). However, if there is a stationary object, such as a heat exchanger that is reflective, then that can serve as the reference line.

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APEX™ and APEX Sentry™ Radar Gauge

The Reference Gauge Height is the distance between the reference line and the face of the radar gauge flange, as shown in Figure 3-1. The Reference Gauge Height is the most critical setting for the radar gauge because it is the basis for all other calculations. The radar gauge measures the distance to the product surface and subtracts this value from the Reference Gauge Height to determine level. To keep level measurements within the stated accuracy specifications, the Reference Gauge Height must be within the ranges specified in Appendix A: Reference Data.

If the distance from the reference line (bottom) of the vessel to the gauge is unknown, you can do one of the following:

• Record the radar gauge level reading and compare it to another known reference level measurement, such as a hand dip. Enter the actual level during the configuration process (see Section 2: Installation). The actual level and distance equals the Reference Gauge Height. Use the distance reading from the gauge and the actual level measurement from some other means, add these values, and input the sum on the Reference Gauge Height.

• If the radar gauge is installed when the tank is empty, measure the Reference Gauge Height (see Figure 3-1) and record the value. You can determine the Reference Gauge Height in one of two ways: – Use the engineering drawing of the vessel to calculate the distance from the mounting flange surface to the bottom of the tank. – If the tank has a flat bottom, use the HART Communicator to set Distance as the secondary variable and have the radar gauge measure it. The distance reading displayed on the HART Communicator is the Reference Gauge Height.

Minimum Clearance to Product Level

The minimum clearance from the gauge flange to the expected maximum product level must be at least 19.6 inches (50 cm). The gauge cannot accurately measure levels at less than 19.6 inches (50 cm) from the flange.

Maximum Range

The maximum measuring range for stated accuracies can be found in Section A: Reference Data.

Upper Range Value (20 mA Point)

When configuring the gauge, you must provide the Upper Range Value (URV). The URV must be at least 19.6 inches (0.5 m) above the lower range value.

Lower Range Value (4 mA Point)

When configuring the gauge, the Lower Range Value (LRV) must be provided and must be at least 19.6 inches (0.5 m) below the upper range value.

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APEX™ and APEX Sentry™ Radar Gauge

Volume Parameters

• Refer to “Set Volume Units” on page 3-19 if using a HART communicator to configure the volume parameters.

• Refer to “Setup - Volume” on page 3-32 if using RCT to configure the volume parameters.

Special Cases Dish-bottom Tanks, Empty Tank Detection

Radar gauges require a horizontal surface, such as the product surface or the bottom of the tank, to reflect the signal back up to the antenna. When a dish-bottom tank is emptied and the surface is no longer horizontal, there may not be a sufficient amount of signal reflected to get a level reading (see Figure 3-2). If this happens, the radar gauge indicates a lost signal condition unless the empty tank detection zone is configured.

Figure 3-2. Reflecting the Signal in a Dish-Bottom Tank

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Reference Gauge Height

URV (20 mA)

Empty Tank Line

LRV

(4 mA)

APEXNEW/FOCUS.TIF

Reference Line

The gauge has an empty tank setting designed to handle this situation. To prevent the gauge from indicating “Lost Signal” in empty tank situations, the empty tank setting forces it to report “Empty Tank” if the signal is lost when the level goes below the setting.

3-4

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Figure 3-3. Reflecting Signal in a Low Level Tank.

APEX™ and APEX Sentry™ Radar Gauge

Reference Gauge Height

URV (20 mA)

Low Level

Tank Line

Empty Tank Line

LRV

(4 mA)

To activate the empty tank feature, use the HART Communicator and set the Empty Tank parameter to a value greater than zero, but less than 25% of the Reference Gauge Height (gauges with a serial number over 3217). If the empty tank parameter is not specified when the gauge is ordered, it will be set to approximately 10% of the Reference Gauge Height. If the signal is lost below this setting, the radar gauge will output LEVEL=0 and the mA signal corresponding to the zero level (usually 4 mA). The message will read “Empty Tank.”

Reference Line

APEXNEW/FOCUSAB.TIF

If the signal is lost outside of this configured distance (that is, at higher levels in the tank), the radar gauge will go into alarm mode and indicate “Lost Signal” (see Section 5: Hardware and Software Maintenance and Troubleshooting).

3-5

APEX™ and APEX Sentry™ Radar Gauge

Null Zones

The gauge can be programmed to ignore signals that are outside of the normal operating span of the vessel. There are two user-configurable null zones—one at the top of the tank and one at the bottom—that, in conjunction with the gauge height, define the measurement limits for the gauge (see Figures 3-1 and 2-3). The gauge will ignore any signals reflected outside these null zones limits.

The upper null zone is measured from the face of the flange down. The factory default setting for the upper null zone is 19.6 in. (0.5 m). This setting means that the gauge will ignore all signals within 19.6 in. (0.5 m) of the gauge flange. Typically, the upper null zone is at least the length of the gauge antenna and mounting nozzle. The nozzle length must not be the same as the dimension (see Figure 3-1) or the signal will not generate properly. The length of the nozzle must be set so the antenna is not even with the roof of the tank.

The lower null zone is measured from the reference line and may be either a positive or negative number. The factory default setting for the lower null zone is –19.6 in. (–0.5 m). This setting allows the gauge to read a level below the reference line, although it would result in a negative value.

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FIELD CONFIGURATION USING THE INTEGRAL DISPLAY OPTION

(APEX Radar Gauge Only)

If the lower null zone is a positive value, the gauge will not read level below that point. This may be useful if there are any obstacles near the bottom of the tank that would give a false reading. The overall level reading is still based on the reference line, however.

The null zone settings can be changed using a HART Communicator and the “Detailed Setup” procedure as outlined on Figure 3-9 on page 3-16.

NOTE

For information on configuring the APEX Radar Gauge using a Model 275 HART Communicator, refer to page 3-18. The same parameters will need to be entered regardless of which method you use to configure the gauge.

NOTE

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

The gauge integral display may be used in explosion-proof areas. Verify that the operating environment of the gauge is consistent with the appropriate hazardous locations certifications. You do not need to remove the cover to operate the integral display.

3-6

To operate the integral display once it has been activated (see page 3-7), place your finger over one of the optical sensors—ENTER, NEXT, UP, or DOWN (see Figure 3-4). A light beam reflects off your finger and activates the sensor and the corresponding function. When you activate a sensor, a red light confirms that you made contact.

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Figure 3-4. Optional Integral Display and Optical Sensors

APEX™ and APEX Sentry™ Radar Gauge

NOTE

An “A” displayed in the lower right corner of the display indicates that the gauge has gone into alarm mode (see Figure 3-4 for an explanation of error messages). The “A” will disappear once the unit is out of alarm mode.

Red Indicator Light

ENTER

Level: 5.10

NOTE

If the red indicator light blinks constantly, try to clean the glass to see if it stops blinking.

The sensors provide the following functions:

• The ENTER sensor (left arrow) sets a variable or selects an option.

• The NEXT sensor (right arrow) moves the cursor within the displayed variable.

• The UP and DOWN sensors change the displayed value of the variable or option.

Starting the Main Menu To start the main menu, follow these steps

(refer to Figure 3-4 and Figure 3-5):

DOWN

LEVEL/0025A.EPS

1. Press the ENTER sensor.

2. Press the UP sensor.

3. Press the DOWN sensor.

4. Press the NEXT sensor.

5. Press the ENTER sensor again to activate the main menu. The integral display shows the first variable, Language.

NOTE

If you do not activate any sensors for one minute, the display will time-out and exit the main menu without saving changes.

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APEX™ and APEX Sentry™ Radar Gauge

Figure 3-5. Main Menu Start Up Sequence

Language: English

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LEVEL-0025C

Setting Configuration Options

Once you start the main menu, you can set variables and configuration options. The integral display allows you to set the following:

• Language

• Output units

• Display units

• Reference height

• 4 mA calibration

• 20 mA calibration

The basic procedure for setting configuration options is as follows:

1. Press UP or DOWN to change the displayed value of the variable or option. If necessary, press NEXT to move the cursor to the digit you want to change.

2. Press ENTER to set the variable or select the option and move to the next option.Configuration changes are not saved until you exit the main menu using the “Save Changes” selection.

NOTE

When each configuration option first appears on the display, its current value is displayed below it.

3-8

The menu tree in Figure 3-6 on page 3-10 shows all of the variables and options you can configure using the integral display. Use the form on the next page to record the key pieces of information you need to configure the APEX gauge using the integral display.

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APEX™ and APEX Sentry™ Radar Gauge

Configuration Options Form

Use this form to record the five key pieces of information you need before you begin to configure the gauge using the integral display. Getting this information ahead of time will help you get your gauge set up and operating quickly and accurately.

Mark the boxes next to your choices and fill in the requested information on this form.

Language (select one) ___ English ___ Francais

___ Deutsch ___ Espanol

Output Units (select one) Level Volume

___ ft

___ yd

___ in

___ ft ___ m

___ in ___ liters

___ m ___ Imp gal

___ cm ___ US gal

___ mm ___ bbls

Note: Your choice of output units determines the choices available for display units

Reference Gauge Height:

Known Actual Level: _______________________ (circle one: ft, in, cm, mm, m)

Empty Tank Setting: _______________________ (10% of gauge height

4 mA Set Point: _______________________

20 mA Set Point: _______________________

_______________________ (circle one: ft, in, cm, mm, m)

suggested)

3-9

APEX™ and APEX Sentry™ Radar Gauge

Figure 3-6. APEX Radar Gauge Integral Display Menu Tree

LANGUAGE

OUTPUT UNITS

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April 2003

English

Deutsch

Francais

Espanol

feet

inches

liters

meter

ImGallons

USGallons

millimeter

barrels

ft3

yd3

in3

DISPLAY UNITS

SET REF. HEIGHT

4 mA CALIBRATION

20 mA CALIBRATION

Finished?

level

% level

(Reference) Gauge

Height

Actual Level

xxx [output units]

Continue

Save Changes

Abort

volume

% volume

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APEX™ and APEX Sentry™ Radar Gauge

Setting the Language

The first variable displayed is Language. Language options include English, Deutsch, Français, and Español. To set the language:

1. Press UP until the display shows the language you want to use.

2. Press ENTER to set the language. The menu then displays the Output Units option.

Setting the Output Units

Output unit options include level units and volume units. Level units are feet (feet), inches (inches), meters (meter), centimeters (cm), and millimeters (millimeter). Volume units are cubic meters (m3), liters (liters), Imperial Gallons (ImGallons), U. S. Gallons (USGallons), barrels (barrels), cubic feet (ft3), cubic yards (yd3), and cubic inches (in3).

NOTE

Volume output units should be selected only if tank type (Tnk Typ) Volume Geometry has been configured using the HART Communicator (refer to page 3-18). To display accurate volumetric units, the tank dimensions and volume equations or a strapping table must be configured in APEX memory using the HART Communicator.

NOTE

If volume is the desired output, the gauge must first be configured in level units (see “Setting the Reference Gauge Height” on page 3-12).

To configure the unit for volume output, refer to page 3-18.

To set the output units:

1. Press UP until the display shows the output units option you want to use.

2. Press ENTER to set the output units. The menu then displays the Display Units option.

Setting the Display Units

The integral display has two display lines (see Figure 3-4). The display for the upper line can be selected via the integral display itself. The lower line scrolls through a series of options. It is programmed using the HART Communicator (refer to page 3-18) or is pre-configured at the factory.

Display unit options for the upper line are level,% level, and mA if level units were selected for output units.

Display unit options for the upper line are volume,% volume, and mA if volume units were selected for output units.

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APEX™ and APEX Sentry™ Radar Gauge

To set the display units:

1. Press UP until the display shows the display units option you want to use.

2. Press ENTER to set the display units. The menu then displays the Reference Height option.

NOTE

The gauge can output up to four variables via the HART Signal.

Setting the Reference Gauge Height

The Reference Height options are Reference Gauge Height or Actual Level. The “Actual Level” option should be used only when there is a definite target for signal reflection. Flat-bottom tanks and flat, horizontal liquid surfaces reflect well. Slanted or turbulent surfaces may not provide sufficient reflection.

The Reference Gauge Height is the most critical setting for the gauge because it is the basis for all other calculations—choose it carefully!

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Figure 3-7. Reference Gauge Height

Reference Gauge Height

Actual Level

Reference Line

LEVEL-0005A

NOTE

The Reference Gauge Height must be set in level (linear) units. If you want volume output units on the integral display, you must first select level units, set the Reference Height, null zones, and empty tank settings and save the changes. You may then re-enter the menu and choose the desired volume display units.

Set the Reference Gauge Height:

NOTE

The empty tank setting must be less than or equal to 25% of the gauge height. When changing from a large gauge height to a smaller gauge height, it may be necessary to first change the empty tank setting to a smaller value using the Model 275 HART Communicator.

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APEX™ and APEX Sentry™ Radar Gauge

1. Press UP until the display shows the reference height option you want to use.

2. Press ENTER to select (reference) Gauge Height or Actual Level. If the dimension from the reference line (bottom) of the vessel to the gauge is unknown, do one of the following:

• • If the tank is empty and has a flat bottom, enter “0” for the actual level.

• • Use the vessel drawing to determine the Reference Gauge Height.

• • Use another known reference level measurement, such as a hand

dip, and enter that value for Actual Level. The gauge will then calculate its height.

3. Press NEXT to move the cursor to the digit you want to change.

4. Press UP or DOWN to change the value.

5. Repeat steps 3 and 4 for each digit.

6. When finished, press ENTER to set the value of the Reference Gauge Height or Actual Level. The menu will continue to the next step.

Setting the 4 mA Calibration

The 4 mA calibration variable is expressed in terms of the configured output units. To receive a 20 mA calibration on the Integral Display Option the loop must be powered. To set the 4 mA calibration:

1. Press NEXT to move the cursor to the digit you want to change.

2. Press UP or DOWN to change the value.

3. Repeat steps 1 and 2 to change the next digit.

4. When finished, press ENTER to set the desired 4 mA calibration. The menu then displays the 20 mA calibration variable.

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APEX™ and APEX Sentry™ Radar Gauge

Figure 3-8. Key Measurement Values

APEX Radar Gauge

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April 2003

Distance

Lower Null Zone

Upper Null Zone

(Min. 19.6 in.)

Process Level

LRV

(4 mA)

Empty

Tan k

Reference

Gauge Height

URV(20 mA)

Reference Line

LEVEL-0005B

Setting the 20 mA Calibration

NOTE

When setting the 20 mA point, be sure to set it at least 19.6 in. (0.5 m) from the flange face and below the upper null zone. The gauge cannot accurately measure the product level closer than 19.6 inches.

3-14

The 20 mA calibration variable is expressed in terms of the configured output units. To receive a 20 mA calibration on the Integral Display Option the loop must be powered. To set the 20 mA calibration:

1. Press NEXT to move the cursor to the digit you want to change.

2. Press UP or DOWN to change the value.

3. Repeat steps 1 and 2 to change the next digit.

4. When finished, press ENTER to set the desired 20 mA calibration. The menu then displays the message “Finished?”

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Exiting the Main Menu To save the configuration information and exit the main menu:

1. Make sure the “Save Changes” message is displayed (press UP or DOWN if necessary).

2. Press ENTER.

To make additional changes, press UP or DOWN to display the message “Continue.”

• Press ENTER if you want to repeat the steps for changing each of the variables and configuration options.

• To go to a specific option, continue pressing ENTER until you reach the option you want to change.

To discard the configuration changes:

1. Press UP or DOWN to display the message “Abort.”

2. Press ENTER.

MODEL 275 HART COMMUNICATION OPTION

Commissioning on the Bench With HART

Commissioning consists of testing the transmitter and verifying transmitter configuration data. The APEX and APEX Sentry Radar Gauge can be commissioned either before or after installation. Commissioning the transmitter on the bench before installation using a Model 275 HART Communicator or AMS ensures that all transmitter components are in working order.

To commission on the bench, connect the transmitter and the HART Communicator. Make sure the instruments in the loop are installed according to intrinsically-safe or nonincendive field wiring practices before connecting a communication in an explosive atmosphere. Connect HART Communicator leads at any termination point in the signal loop. For convenience, connect them to the terminals labeled “COMM” on the terminal block. Connecting across the “TEST” terminals will prevent successful communication. Avoid exposing the transmitter electronics to the plant environment after installation by setting all transmitter jumpers during the commissioning stage on the bench.

For 4–20 mA transmitters, the power supply must provide 10.5 to 42.4 V dc at the transmitter, and a meter to measure output current. To enable communication, a resistance of at least 250 ohms must be present between the HART Communicator loop connection and the power supply. Do not use inductive-based transient protectors with the APEX and APEX Sentry Radar Gauge.

When using a HART Communicator, any configuration changes made must be sent to the transmitter by using the “Send” key (F2). AMS configuration changes are implemented when the “Apply” button is clicked.

For more information on the Model 275 HART Communicator see document 00275-8026-0002.

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Figure 3-9. HART Communicator Menu Tree for the APEX and APEX Sentry Radar Gauges

Reference Manual

April 2003

Online Menu

1.DEVICE SETUP

2. PV

3. AO

4.LRV

5.URV

NOTE The Review Menus list all of the information stored in the radar gauge. This includes device information, measuring element, signal condition, output condition, and software revision.

3-16

1.PROCESS VAR IAB LE

2.DIAGNOSTICS AND SERVICE

3.BASIC SETUP

4.DETAILED SETUP

5.REVIEW MENUS

1.VARIABLE MAPPING

2.Level

3.PV % rnge

4.A01

5. Dist

6.Vol *

7.Int. Temp

8.Temp *

9.RTD *

— St Vol *

— Loop Vlt — SNR — Targ Str

1.TEST DEVICE

2.Loop Test

3.D/A Trim

1. Tag

2.TRANSMITTER UNITS

3.RERANGING

4.Gauge Ht

5.RTD Usage *

6.EmpTank

1.DEVICE

INFORMATION

2.LCD DISPLAY

3.VOLUME

GEOMETRY *

4.SIGNAL CONDITION

5.OUTPUT CONDITION

6.THRESHOLD SETTING

1.Variable Re-map

2.PV is

3.SV is

4.TV is

4 4V is

1.STATUS

2.Master Reset

1.Lev Units

2.Vol Units *

3.Tmp Units

1.Apply Values

2.Range Values

3.PV % Range

1.Distributor

2.Model

3.Dev id

4. Tag

5.Date

6.Write Protect

7.Descriptor

8.Message

9.REVISIONS

- CONSTRUCTION MATLS

1.Current

2.Pct Rng

1.LINE 1

2.LINE 2

3.LANGUAGE

1.TnkTyp

2.Diametr

3.LthOrHt

4.STRAPPING TABLE

(see note)

5.VOLUME COEFFIC

1.PV LRV

2.PV URV

3.PV % rnge

4.PV Damp

5.UprNlZ

6.LowNlZ

1.ANALOG OUTPUT

2.HART OUTPUT

1.Threshold Units

2.Threshold Range

3.Threshold Snapshot

3. PV

1.Status Group 1

2.Status Group 2

3.Status Group 3

4.Status Group 4

5.Status Group 5

6.Status Group 6

7.Status Group 15

8.Status Group 16

9.Status Group 17

— Status Group 18 — Status Group 19

1.Current

2.PctRange

3.Level

4.Distance

5.Volume *

6.Int Temp

7.Temp *

8.RTD Ohms *

— English — German — French — Spanish

To enable volume calculations based on a strapping table, the “strap table” option must be selected for tank type.

1.PV AO

2.PV AO ALRM TYP

3.Loop test

4.D/A trim

5.Scaled D/A trim

1.Poll addr

2.Num req preams

3.Burst mode

4.Burst option

Do not go into “Threshold Setting” unless specifically directed to do so by a Rosemount Service Representative.

9.Std Volume *

— Loop Vlt — SNR — TargStr

1. K0

2. K1

3. K2

4. K3

5. K4

6.Std Temp

NOTE: * Selections in italics are not available with the APEX Sentry Radar Gauge

NOTE

Indicates whether error messages are active. Refer to “Alarm and Diagnostic Messages” on page 5-3 for assistance.

1.Flange Type

2.Matrl

3.Meter

4.Antenna

5.Barrier

1.Universal Rev

2.Fld Dev Rev.

3.Software Rev.

1.Strap table

2.Ver Cylinder

3.Hor Cylinder

4.Ver Bullet

5.Hor Bullet

6.Sphere

7.None

1.Entries Used

2.Max Entries

3.Lvl0

4.Vol0

5.Lvl1

6.Vol1

7.Lvl2

8.Vol2

9.Lvl3

— Vol3 — Lvl4 — Vol4 —Lvl9 — Vol9

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APEX™ and APEX Sentry™ Radar Gauge

Setting the Loop to Manual

Whenever sending or requesting data that would disrupt the loop or change the output of the transmitter, set the process application loop to manual. The HART Communicator will prompt you to set the loop to manual when necessary. Acknowledging this prompt does not set the loop to manual. The prompt is only a reminder; set the loop to manual as a separate operation.

Wiring Diagrams Bench Hook-up

Connect the bench equipment, and turn on the HART Communicator by pressing the ON/OFF key. The HART Communicator will search for a HART-compatible device and indicate when the connection is made. If the HART Communicator fail to connect, it indicates that no device was found. If this occurs, refer to Section 5: Hardware and Software Maintenance and Troubleshooting.

Field Hook-up

Signal point may be grounded at any point or left ungrounded.

Construction Materials 1, 4, 1, – Device Information 1, 4, 1 Diameter (APEX Radar Gauge Only) 1, 4, 3, 2 Display Language 1, 4, 2, 3 Display Line 1 1, 4, 2, 1 Display Line 2 1, 4, 2, 2 Empty Tank 1, 3, 6 Length or Height (APEX Radar Gauge Only) 1, 4, 3, 3 Level Units 1, 3, 2, 1 Loop Test 1, 2, 2 Lower Null Zone 1, 4, 4, 6 Lower Range Value (LRV) (4 mA) 1, 3, 3 Master Reset 1, 2, 1, 2 Poll Address 1, 4, 5, 2, 1 Primary Variable 1, 1, 1, 1 Process Variable Damping 1, 4, 4, 4 Range Values 1, 3, 3, 2 Reference Gauge Height 1, 3, 4 Strapping Table (APEX Radar Gauge Only) 1, 4, 3, 4 Ta g 1, 3, 1 Tank Type (APEX Radar Gauge Only) 1, 4, 3, 1 Temperature Units 1, 3, 2, 3 Upper Null Zone 1, 4, 4, 5 Upper Range Value (URV) (20 mA) 1, 3, 3 Variable Remapping 1, 1, 1, 1 Volume Coefficient (K Constants) (APEX Radar Gauge Only) 1, 4, 3, 5 Volume Units (APEX Radar Gauge Only) 1, 3, 2, 2

Function HART Fast Key

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APEX™ and APEX Sentry™ Radar Gauge

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April 2003

Connections and Hardware

The HART Communicator exchanges information with the APEX and APEX Sentry Radar Gauges from the control room, the instrument site, or any wiring termination point in the loop. The HART Communicator should be connected in parallel with the gauge. Use the loop connection ports on the rear panel of the HART Communicator. The connections are non-polarized.

Do not make connections to the serial port or NiCad recharger pack in an explosive atmosphere.

Using a Model 275 HART Communicator

NOTE

Remember, when using a Model 275 hand held communicator, you must send the data before configuration changes will take effect.

NOTE

As a matter of routine, shut off the APEX Radar Gauge and all other equipment before you enter the tank.

To configure the APEX and APEX Sentry Radar Gauges to report LEVEL (analog output is linear to level) with the gauge wired as in Figure 3-6 on page 3-10, connect the Model 275 as shown.

Set Transmitter Units Set transmitter units:

HART Comm 1, 3, 2, 1

•ft

•m

•in

•cm

•mm

Set Reference Gauge Height

HART Comm 1, 3, 4

When setting the Reference Gauge Height, keep in mind that this value is used for all measurements performed by the APEX. (Refer to “Setting the Reference Gauge Height” on page 3-12.)

Set 4 and 20 mA Points When setting the range values, it is possible to enter the values directly, or to

HART Comm 1, 3, 3

Volume Configuration (APEX Radar Gauge Only)

Refer to “Safety Messages” on page 3-1 and for more information.

3-18

use actual values. Keep in mind that the 20 mA point must be at least 19.6 inches below the flange face.

NOTE

The primary variable must be set to level (factory default).

To configure the gauge to report ACTUAL VOLUME (analog output is linear with volume) set transmitter units and Reference Gauge Height in level units as detailed above. The Reference Gauge Height must be set in linear units for the gauge to be able to read volume.

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Set Volume Units You may choose one of the following:

HART Comm 1, 3, 2, 2

• Gallons (gal)

• Liters (L)

• Imperial Gallons (Impgal)

• Cubic Meters (cum)

• Barrels (bbl)

• Cubic Feet (cuft)

• Cubic Inches (cuin)

• Cubic Yards (cuyd)

Set Primary Variable Select volume for volume measurements.

HART Comm 1, 1, 1, 1

Set Range Values (4 and 20 mA points)

HART Comm 1, 3, 3

When setting the range values, it is possible to enter the values directly or to have the gauge read the values. If values are to be read by the gauge, set the desired tank type first.

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

HART Comm 1, 4, 3, 1

shapes: Vertical Cylinder, Horizontal Cylinder, Vertical Bullet, Horizontal Bullet, or Sphere. (If primary variable is level, select “None”). If your tank is not one of the above, or if you have strapping table information, select “Strap Table.”

Enter Tank Dimensions If a standard tank shape was chosen, enter the diameter and length

HART Comm 1, 4, 3

Enter Strapping Table Information

HART Comm 1, 4, 3, 4

(1)

(or height) for the tank.

First tell the gauge how many entries you will have; the more entries you have, the better the gauge will be able to calculate the volume. The maximum number of strapping points you can enter is 10.

Next, input the actual level and volume points, starting at the bottom of the tank. It may be desirable to use most of the points in the areas of the tank that are the least “straight.” See Figure 3-10. Suggestion: Set first entry at zero level and zero volume to enable the gauge to track volume over the entire range.

(1) If tank type is strapping table

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APEX™ and APEX Sentry™ Radar Gauge

Figure 3-10. Tank Bottom Strapping Points

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.

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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.

Standard Volume (Apex Radar Gauge Only)

If standard volume is desired, an RTD must be installed and wired to the APEX Radar Gauge. First, configure the gauge for actual volume as outlined in the previous section and configure standard volume as the secondary variable.

Enable RTD Input Enables the radar gauge to use the RTD input.

HART Comm 1, 3, 5

Enter Volume Coefficients

HART Comm 1, 4, 3, 4

Volume coefficients (K-Constants) are used to determine how temperature changes affect volume measurements. If you do not know K-Constants for your process and would like to measure standard volume, contact Rosemount Customer Central at 1-800-999-9307 for further assistance.

LEVEL-APEX_05A

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AMS CONFIGURATION TOOL OPTION

APEX™ and APEX Sentry™ Radar Gauge

Basic Setup

Figure 3-11. Basic Setup Example

Right click on the device and select “Configuration Properties” from the menu. Select the Basic Setup tab, to enter Tank, Process Input, and Device information.

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Strapping Table Right click on the device and select “Configuration Properties” from the menu.

Locate the Strapping Table tab and perform the following procedure:

First tell the gauge how many entries you will have; the more entries you have, the better the gauge will be able to calculate the volume. The maximum number of strapping points you can enter is 10.

Next, input the actual level and volume points, starting at the bottom of the tank. It may be desirable to use most of the points in the areas of the tank that are the least “straight.” Suggestion: Set first entry at zero level and zero volume to enable the gauge to track volume over the entire range.

Figure 3-12. Strapping Table Example

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Transmitter Variables Right click on the device and select “Configuration Properties” from the menu.

Locate the Transmitter Variables tab and perform the following procedure:

1. Enter the entries in the fields provided. Click Apply.

2. An “Apply Parameter Modification” screen appears, enter desired information and click OK.

3. After carefully reading the warning provided, select OK.

Figure 3-13. Transmitter Variables Example

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Rerange Right click on the device and select “Configuration Properties” from the menu.

Locate the Analog Output tab and perform the following procedure:

1. Enter the lower range value (LRV) and the upper range value (URV) in the fields provided. Click Apply.

2. An “Apply Parameter Modification” screen appears, enter desired information and click OK.

3. After carefully reading the warning provided, select OK.

Figure 3-14. Analog Output Example

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RADAR CONFIGURATION TOOL (RCT) OPTION

Installing the RCT Software

The Radar Configuration Tool (RCT) is a user-friendly software tool that allows you to configure the APEX Radar gauge. You can choose either of the following two methods to configure the APEX Radar gauge:

• Start the Wizard for a guided installation if you are un-familiar with the APEX Radar Gauge (See “Using the Setup Wizard” on page 3-27).

• Use the Setup function if you are already familiar with the configuration process or if you want to change the current settings (See “Using the Setup Function” on page 3-28).

To install the Rosemount Configuration Tool:

1. Insert the installation CD into your CD-Rom drive.

2. Run Setup.exe from the CD.

3. Follow the instructions.

NOTE

Do not use an alternate drive other then your hard drive when installing the RCT Software.

To start the RCT:

1. From the Start menu click Programs > RCT Tools > RCT.

2. In the RCT Status Bar check that RCT communicates with the radar gauge.

Figure 3-15. RCT Communication established

Figure 3-16. RCT Communication not established

Communication is established

(green symbol)

APEX/RCT/APEX_01AA.TIF

Communication is not established

(red symbol)

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Specifying the COM Port If communication is not established, open the HART Communication Server

window and verify the right COM Port is selected.

To check the current COM port settings do the following:

1. Locate the HART Server icon in the lower right corner of the screen.

Figure 3-17. HART Server Icon

HART Server Icon

2. Double-click the HART Server icon.

Figure 3-18. Rosemount HART Communication Software

APEX/RCT/10053_CA.TIF

Figure 3-19. RCT tool bar

Check that the

selected COM port

matches the

connected port on

the PC.

APEX/RCT/APEX_03AA.TIF

3. Check the COM port.

4. Choose the COM Port option that matches the COM Port connected to the transmitter.

5. Click the Search for a device icon in the RCT tool bar:

Search for a device

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PEX/RCT/APEX_04AA.TIF

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Using the Setup Wizard To install an APEX Radar Gauge by using the installation Wizard do the

following:

Figure 3-20. RCT workspace

Basic

Wizard

1. Start the RCT software.

2. In the RCT workspace click the Wizard icon (make sure the Basic section is open), or choose the View > Wizard menu option.

APEX/RCT/APEX_05AA.TIF

Figure 3-21. RCT Wizard

APEX/RCT/APEX_06AA.TIF

3. Click the Start button and follow the instructions. Now you will be guided through a number of dialogs allowing you to configure the transmitter.

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APEX™ and APEX Sentry™ Radar Gauge

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Using the Setup Function

Figure 3-22. RCT workspace/ Setup Info

To install the APEX Radar Gauge by using the Setup function do the following:

Basic

Setup

APEX/RCT/APEX_07AA.TIF

1. Start the RCT software.

2. In the RCT workspace click the Setup icon (make sure the Basic section is open)

3. Choose the appropriate tab:

• Info: Information about the device.

• Basics: Set measurement units.

• Output: Variable assignment and range value settings.

• Tank Config: Tank height and other geometry settings, null zones, and empty tank settings.

• Volume: Specification of tank geometry for volume calculations.

• LCD: Display panel settings.

• Advanced: Quick pick options and their required parameter settings.

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Figure 3-23. Setup Info tab

APEX™ and APEX Sentry™ Radar Gauge

Setup - Info

The Info tab shows information about the connected transmitter.

Figure 3-24. Setup Basics Tab

Device Name: model designation

Device ID: 28 (Rosemount APEX Radar Gauge)

Software Rev: Software version number

APEX/RCT/APEX_08AA.TIF

Setup - Basics

The Basics tab lets you choose Measurement Units for Length, Volume, and Temperature. These units are used wherever measurement data is presented.

APEX/RCT/APEX_09AA.TIF

This window also allows you to enter some general information about the transmitter like Message, Tag, Descriptor, and Date. This information is not required for the operation of the transmitter and can be left out if desired.

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APEX™ and APEX Sentry™ Radar Gauge

Setup- Output

The Output tab lets you assign up to four transmitter variables.

Figure 3-25. Setup Output Tab

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Typically, the Primary Variable (PV) is configured to be Product Level, Interface Level, or Volume.

Set the Lower Range Value (4 mA) and the Upper Range Value (20 mA) to the desired values. Keep in mind the 20 mA value should be below the Upper Null Zone.

RTD Usage should be checked if an RTD is used with the gauge.

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APEX™ and APEX Sentry™ Radar Gauge

Setup - Tank Config

The Tank Configuration tab contains information on tank geometry.

Figure 3-26. Setup Tank Configuration Tab

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Tank Geometry

The Gauge Height (RGH) is the distance from the Upper Reference Point to the bottom of the tank. When setting the Reference Gauge Height, keep in mind that this value is used for all measurements performed by the APEX Radar Gauge. The Gauge Height must be set in linear (level) units, such as feet or meters, regardless of primary variable assignment.

The Upper Null Zone (UNZ) should not be changed unless there are disturbances at the top of the tank. By increasing the Upper Null Zone value measurements in this region can be avoided. The UNZ is equal to

19.6 inches (0.5 m) in the factory configuration.

NOTE

The gauge cannot reliably read measurements too close to the antenna.

The Lower Null Zone (LNZ) should not be changed unless there are disturbances at the bottom of the tank. By increasing the Lower Null Zone value measurements in this region can be avoided. The LNZ is equal to

-19.6 inches (-0.5 m) in the factory configuration.

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APEX™ and APEX Sentry™ Radar Gauge

Setup - Volume

The Volume tab lets you configure the transmitter for volume calculations.

Figure 3-27. Setup Tank Volume Ta b

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You can choose one of the standard tank shapes or the strapping option. Choose None if volume calculation is not used at all.

Choose one of the following options:

• None

• Strap Table

• Vertical Cylinder

• Horizontal Cylinder

• Vertical Bullet

• Horizontal Bullet

• Sphere

APEX/RCT/APEX_12BA.TIF

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APEX™ and APEX Sentry™ Radar Gauge

Setup - LCD

The LCD tab lets you specify which parameters to appear on the display panel.

Figure 3-28. Setup Tank LCD Ta b

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Choose one the following options:

Parameter Description

Level Product Level Distance Distance from upper reference point to product surface Volume Total product volume Internal Temperature Temperature inside the transmitter housing RTD Temperature Temperature report from connected RTD (optional) RTD Ohms Resistance report from connected RTD (optional) Standard Volume Product volume corrected for temperature Loop Voltage Voltage of loop at device terminal DSP Signal/ Noise An indicator of signal quality DSP Target Strength An indicator of signal quality LNF Counter A counter indicating lost targets (typically 0) LF Counter A counter indicating found targets (typically 8) Percent Range Level value in percent of total measurement range

APEX/RCT/APEX_13AA.TIF

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APEX™ and APEX Sentry™ Radar Gauge

Setup - Advanced

The Advanced tab lets you specify which quick pick option and required parameters to configure.

Figure 3-29. Setup Tank Advanced Tab

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Figure 3-30. Quick Pick Option Empty Tank

APEX/RCT/APEX_14AA.TIF

• Empty Tank - turns on when level is below the empty tank setting. The Empty Tank option controls gauge function when target is lost after level drops below the empty tank setting. This is typically used in non-flat bottom vessels. It prevents the gauge from going into full search mode when a vessel is empty. The gauge will focus its search in the area below the Empty Tank setting and wait for vessel filling to begin.

APEX/RCT/APEX_23AA.TIF

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APEX™ and APEX Sentry™ Radar Gauge

• False Echoes - minimizes reflection from a false target that is within the measurement range. Use this when the gauge occasionally locks on a false target when the level drops below it. To use this function, the false target must be identified by its bin number. To learn this, run a tank plot and spectrum (under the Advanced Tab) and locate the false target and associated bin number. Input this value as shown in Figure 3-31. Consult the factory for assistance.

Figure 3-31. Quick Pick Option False Echo

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Figure 3-32. Quick Pick Option Noisy Applications

APEX/RCT/APEX_22AA.TIF

• Bottom of Tank - allows the gauge to track just beyond the LNZ without alarming. This option prevents the gauge from locking onto the tank bottom. The Bottom of Tank tab is often used in flat bottom tanks with low dielectric fluids.

• Noisy Applications - includes applications with high turbulence or occasional foam where the level target will disappear for short periods of time. This option increases the amount of time that gauge will look for a target within the tracking window before alarming.

APEX/RCT/APEX_20AA.TIF

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APEX™ and APEX Sentry™ Radar Gauge

• Miscellaneous - allows you to change the target window size and the tracking window size.

Figure 3-33. Quick Pick Option Miscellaneous

Logging Measurement Data

To start logging do the following:

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

Basic

Monitor

2. Choose the desired variables to be monitored. Click the Start Monitoring button.

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APEX™ and APEX Sentry™ Radar Gauge

Start Monitoring

Start Disk Logging

Saving the log to a disk

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Counter

APEX/RCT/APEX_26AA.TIF

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 of a 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 60000 entries which can easily be handled by spreadsheet programs such as MS Excel.

4. Select the desired options of 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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APEX™ and APEX Sentry™ Radar Gauge

Using the Advanced Tab Tank Plotting

Advanced

Tan k

Plotting

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Memory Map

A recording of all the memory files and a listing of standard defaults.

Advanced

Memory Map

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APEX™ and APEX Sentry™ Radar Gauge

Section 4 Hardware and Software

Maintenance and Troubleshooting

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-1

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4-2

Alarm and Diagnostic Messages . . . . . . . . . . . . . . . . . . . . page 4-3

Local Operator Interface Display . . . . . . . . . . . . . . . . . . . page 4-7

HART Communicator Software Diagnostics . . . . . . . . . . page 4-7

AMS Configuration Software Diagnostics . . . . . . . . . . . . page 4-8

Removing the Gauge Housing From the Flange . . . . . . . page 4-10

This section provides information on preventive maintenance and diagnostic and alarm messages displayed by the APEX and APEX Sentry Radar Gauges and the HART Communicator.

SAFETY MESSAGES NOTE

All information included refers to both the APEX Radar Gauge and the APEX Sentry Radar Gauge unless otherwise stated.

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.

Explosions could result in death or serious injury:

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

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

• Do not remove the gauge cover in explosive atmospheres when the circuit is alive.

• Make sure only qualified personnel perform these procedures.

• 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.

www.rosemount.com

APEX™ and APEX Sentry™ Radar Gauge

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 APEX Radar Gauge is off and the lines to any other external power source are disconnected or not powered while wiring the gauge.

As a matter of routine, shut off the APEX Radar Gauge and all other equipment in the tank before you enter the tank.

People who handle products exposed to a hazardous substance can avoid injury if they are informed and understand the hazard.

Return of Materials: 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 products.

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PREVENTIVE MAINTENANCE

The APEX and APEX Sentry Radar Gauges have built-in diagnostics and self-tests that generate alarms if certain failures occur. In addition, there are a few basic things you may want to check periodically to prevent problems from occurring.

Use only the procedures and new parts specifically referenced in this manual to ensure specification performance and certification compliance. Unauthorized procedures or parts may affect product performance and the output signal used to control a process.

Product Buildup If you have a process that produces condensate or is prone to coating, check

the radar antenna for product buildup. If buildup appears on the inside or outside of the antenna, clean it with a solvent that will not damage the SST antenna material, flange, or PTFE/ceramic waveguide.

Splashing and Coating

• Horn antennas can be recessed into the nozzle to protect against coating.

- Gas purge can be used

- Intermittent water purge can be used.

• In other cases, periodic cleaning might be required.

Flushing Connection

A flushing connection (Figure 4-1) may be installed to prevent corrosion on the radar antenna.

Refer to “Safety Messages” on page 4-1 and for more information.

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Figure 4-1. APEX Radar Gauge with flushing connection

APEX™ and APEX Sentry™ Radar Gauge

Flushing Connection with Window

Window

Flushing Connection with No Window

Performance Check the level output from the radar gauge by comparing the gauge output

with a hand dip or other means that is suitable for a level comparison.

LEVEL/APEX NEW/GASPURGE_FA; GASPURGE_CA

ALARM AND DIAGNOSTIC MESSAGES

Check the 4–20 mA output with a milliampere meter or read the signal on a current indicator. You can do this type of test by performing a loop test using the HART Communicator. 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.

Set the 4–20 mA current to 4 mA and measure or display the signal on the mA meter or indicator. Check the 20 mA in the same manner.

Check the ac or dc power supply that supplies operating power to the gauge to make certain it is still operating within specifications. If a separate dc power supply is used for the 4–20 mA output, check the dc power supply to make certain it is still operating within its specifications. Avoid contact with leads and terminals.

Table 4-1 is a list of alarm and diagnostic messages that may be displayed on the Integral Display (if installed) or on the Model 275 HART Communicator.

Some of the messages involve the digital signal processor (DSP), which is one of the microprocessor boards. It simply indicates that this board originated the message. Also, you will see “Radar Configuration Tools (RCT)” mentioned in the “Action” column of the table.

If any of these problems persist after performing the suggested action, contact Rosemount Customer Central at 1-800-999-9307.

If you encounter any of these messages immediately after start up, wait 30 seconds to allow the gauge to “lock on” to a signal. If, after 30 seconds, these messages are still displayed, follow the course of action listed below.

Refer to “Safety Messages” on page 4-1 and for more information.

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Table 4-1. Alarm and Diagnostic Messages

Displayed Message Cause Action

dspNotResponding The DSP is not responding to a request to

dspOutOfLimits One of three conditions could cause this

dspReportsError The DSP has set one of its 32 error flags. If other messages are present, follow

dspReportWarning The DSP has set one of its 32 warning flags. If other messages are present, follow

DSP Startup in Progress or DSP Error #6

DSP EEPROM failure or DSP Error #14

eepromFactAreaFailure Part of the EEPROM can be configured only at

eepromUserChecks or eepromUserAreaFailure

Factory Alg Param Invalid or DSP Warning #26

High Signal Strength or Warning: Signal too strong or DSP Warning #0

Incorrect Alg Lib Vers or DSP Error #25

APEX™ and APEX Sentry™ Radar Gauge

return the distance.

message: Level is returned as “Not a Number” (usually resulting from a “dspNotResponding” condition). Level is less than the lower null zone. Level is greater than (Reference Gauge Height – upper null zone).

Advisory No action necessary; gauge is starting up.

Electronics Failure Call Rosemount Customer Central. The unit will

the factory. The checksum for this portion of the EEPROM does not match the contents.

Part of the EEPROM can be configured by the user, normally using a 275 or RCT. The checksum for this portion of the EEPROM does not match the contents.

Configuration Warning Verify 4-20 mA Settings, null zone configurations,

Process Condition: Return signal is stronger than expected. The radar gauge is either too close to the product or there is a failure in the gauge. or The radar gauge is in a stilling well.

Internal Software Error Call Rosemount Customer Central. The unit will

Verify that the gauge is getting enough power. See page A-7 for power requirements Verify that the APEX gauge is properly installed; the target (product) must be within 98 ft (30 m) of the flange but no closer than 19.6 in. (0.5 m). Cycle power or use a Model 275, AMS, or RCT to reset.

This message most frequently appears during start-up; wait 30 seconds and if the message persists, follow steps 2 and 3. Verify that the Reference Gauge Height and null zones are set correctly. Check the Reference Gauge Height first because setting the Reference Gauge Height will cause the lower null zone to reset to its default value.

recommended action(s) for those messages; verify configuration. Cycle power or use a 275 or RCT to reset.

recommended action(s) for those messages. Some warnings, especially #5, may appear for a few seconds when the APEX gauge is being configured. If it persists, verify configuration. Cycle power or use a 275 or RCT to reset.

most likely need advanced troubleshooting in the field or will need to be returned to the factory for repair.

Call Rosemount Customer Central for further assistance.

Use a 275 or RCT to change some portion of the user EEPROM. (For example, change the message tag, descriptor, or date.) This causes the checksum to be updated. Verify 4-20 mA Settings, null zone configurations, Reference Gauge Height, empty tank detection zone, etc. Cycle power or use a 275 or RCT to reset.

Reference Gauge Height, empty tank detection zone, etc. If error persists, call Rosemount Customer Central.

The product is too close to the gauge, the nozzle is obstructed, or there is a failure in the gauge. If the message persists throughout the measurement range, the beam is unobstructed, and the level measurement is not correct, the gauge has failed. Call Rosemount Customer Central to arrange a return.

most likely need to be sent in for repair.

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Table 4-1. Alarm and Diagnostic Messages

Displayed Message Cause Action

intTempOutOfRang or Internal PRT out of range

invalidConfigur A background task that validates the APEX

Invalid DSP Command or DSP Error #26

INVALID TEST CMD PARAM or DSP Warning #27

DSP Error #5 Electronics Failure: Inadequate signal strength

lowTermVoltage The power supply for the HART

Low Signal Strength or DSP Warning #1

ramFailure Write/read tests of RAM failed. Cycle power or use a 275 or RCT to reset. romChecksum

or romChecksumFailure

rtdOutOfLimits or RTD out of sensor limits

softwareError A stack overflow occurred in the transmitter. Cycle power or use a 275 or RCT to reset. Target in null zone

or DSP Warning #5

Targ et l ost o r Error: lost signal or DSP Error #7

APEX™ and APEX Sentry™ Radar Gauge

The APEX gauge internal temperature appears to be less than –40 °F (–40 °C) or greater than 185 °F (85 °C).

gauge configuration has found one or more discrepancies. This flag is also set if certain key items (polling address, LCD language, dynamic variable assignments, sample time) must be reset to reasonable values at start-up.

Internal Software Error Call Rosemount Customer Central. The unit will

Configuration Warning Verify 4-20 mA settings, null zone configurations,

returning to gauge.

communications loop has dropped below 5 V; current will be fixed at 1 mA.

Inadequate Return Signal Check nozzle for obstructions/debris that could

The checksum for the ROM code does not match the contents.

RTD is missing, wired incorrectly, or returning invalid data.

Process Condition: Target has moved into a null zone

Configuration or Process Error: APEX cannot find a target in the tank.

Take appropriate measures to ensure that the housing remains within the specified temperature limits. See Appendix A: Reference Data.

Cycle power or use a 275 or RCT to reset. Verify configuration after Master Reset; verify 4-20 mA settings, null zone configurations, Reference Gauge Height, empty tank detection zone, etc.

most likely need to be sent in for repair.

Reference Gauge Height, empty tank detection zone, etc. If error persists, call Rosemount Customer Central.

Cycle power or use a Model 275, AMS, or RCT to reset. If error does not clear, call Rosemount Customer Central for additional troubleshooting. Unit may need repair.

Provide a proper power supply for HART communications (10.5 - 55 vdc).

weaken the signal May occur in applications with occasional foam or in presence of low dielectric and heavy turbulence.

Cycle power or use a 275 or RCT to reset.

If no RTD should be present, use a 275 or RCT to disable the RTD. Otherwise, verify that the RTD is wired and working correctly.

Verify that null zones are configured correctly for your tank. (This message will only display for about one minute; the gauge will start to ignore the signal after that). Null zones may need to be adjusted; see page 3-11. After adjustment, Cycle Power or use a Model 275, AMS, or RCT to reset. This will reset the alarm condition.

Verify that the unit is configured correctly and that the beam has a clear shot to the target.

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Table 4-1. Alarm and Diagnostic Messages

Displayed Message Cause Action

Empty tank or DSP Warning #7 or Warning: Empty Tank or Empty Tank mode Active

User Alg Param invalid or USR ALG PAR OUT OF RNG or DSP Warning #25

VCO Cal Failure #X or DSP Error #16, 17, 22, or 31

VCO Calibration Retry or DSP Warning #18

volumeInputError The level from which the volume would be

DSP EEPROM failure or DSP Error #14

DSP Error #3 or DSP Error #4

VCO Cal Failure #27 or 28 or DSP Error #27 or 28

VCO Cal Failure #18 or 19 or DSP Error #18 or 19

DSP Error #9 or 10 Electronics Failure Cycle power; if error does not clear in a few

DSP Warning #19 Software Error Cycle power; if error does not clear, call

APEX™ and APEX Sentry™ Radar Gauge

Process Condition: Target has moved into the empty tank detection zone, and the signal has been lost.

Configuration Warning: User entered parameter does not fit within suggested guidelines.

Electronics Failure Note failure number (#), and call Rosemount

Internal Software Warning: This message will either go away in several seconds to be replaced by another or the unit will fail.

computed is beyond the physical dimensions of the tank (one or more of the following): The level is less than zero. For a sphere or horizontal tank, the level is greater than twice the radius. For an upright tank, the level is greater than the height of the tank. If a strapping table is being used, an invalid number of strapping points has been defined (fewer than 2 or more than 10).

Electronics Failure If error does not clear after power is cycled, call

Hardware Failure Cycle power; if the error does not clear, the

Electronics Failure Cycle power; if the message does not clear within

Electronics Failure Cycle power; if the error is followed by other

Is the tank empty? If so, the gauge is operating correctly; if not, reconfigure the empty tank detection zone (see page 3-6).

Verify 4–20 mA settings, null zone configurations, Reference Gauge Height, empty tank detection zone, etc. If error persists, call Rosemount Customer Central for further guidance.

Customer Central. The unit will most likely need to be sent in for repair.

Cycle power; if the message does not disappear within 30 seconds, the unit has failed; call Rosemount Customer Central to arrange for repair.

If no strapping table is being used, verify that the tank type, height, and width have been entered correctly. If a strapping table is being used, verify the following: Tank type = strapping table. Number of strapping table entries ≥ 2 and ≤ 10). All strapping entries are in ascending order. Any level to be measured is within the range of the strapping table entries.

Rosemount Customer Central for further troubleshooting. The gauge may require service in the field.

gauge will need to be sent in for repair.

three minutes, the gauge will need to be returned or serviced in the field.

errors, follow instructions listed for those errors. If the error does not clear in five minutes, it will need to be returned to the factory for repair.

minutes, the gauge will need to be repaired.

Rosemount Customer Central

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Table 4-1. Alarm and Diagnostic Messages

Displayed Message Cause Action

DSP Warning #20 Advisory The error will either clear in a few minutes or be

DSP Warning #9 Hardware Warning This is probably an informational warning. If this

**If you get an error message that is not listed here, it was not in use at this printing. Call Rosemount Customer Central (1-800-999-9307) for guidance.

APEX™ and APEX Sentry™ Radar Gauge

accompanied by another error.

message is not accompanied by any other messages, and the gauge seems to be functioning properly, this message can be ignored. If, however, it is accompanied by any other warnings, refer to these warnings.

LOCAL OPERATOR INTERFACE DISPLAY

HART COMMUNICATOR SOFTWARE DIAGNOSTICS

If the red light is blinking constantly, it could be due to dirt over one of the optical switches. Try to clean the outside of the Local Operator Interface glass to see if the blinking stops.

When using the HART Communicator to communicate with the APEX and APEX Sentry Radar Gauges, you may encounter software diagnostic messages. These messages may indicate problems with the equipment or mistakes made in entering data, while others act as reminders to you.

Section 3: Configuration describes some of the messages displayed by the HART Communicator, generally explains why they occur, and provides instructions for responding to each message.

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AMS CONFIGURATION SOFTWARE DIAGNOSTICS

When using AMS to communicate with the APEX and APEX Sentry Radar Gauges, you may encounter software diagnostic messages. These messages may indicate problems with the equipment or mistakes made in entering data, while others act as reminders to you.

The following shows some of the error messages displayed by the AMS software.

APEX/AMS/APEX_AMS_05A.TIFAPEX/AMS/APEX_AMS_07A.TIF

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APEX™ and APEX Sentry™ Radar Gauge

APEX/AMS/APEX_AMS_06A.TIF

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REMOVING THE GAUGE HOUSING FROM THE FLANGE

Figure 4-2. Removing the gauge housing from the flange

If rigid conduit is used, first remove the conduit from the gauge. If you have been instructed by a Rosemount representative to remove the gauge housing from the flange, without breaking the process seal, remove the four ¼–28 UNF–2A bolts at the base of the housing adapter (Figure 4-2). Use the equipment only as specified in this manual. Failure to do so may impair the protection provided by the equipment.

NOTE If the electronics housing needs to be rotated, do not un-bolt the adapter-to-housing bolts! Un-bolt the flange bolts and rotate as needed. If

the housing is rotated at the housing-to-adapter connection, the gauge will be irreparably damaged, and the warranty will be invalidated. Do not remove or handle the electronic components.

Housing

Adapter

Adapter to

Flange Bolts

Flange

DO NOT UN-BOLT HERE

Un-bolt flange bolts to rotate

4-10

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APEX™ and APEX Sentry™ Radar Gauge

Appendix A Reference Data

Antenna Selection Guidelines . . . . . . . . . . . . . . . . . . . . . . page A-1

Telecom Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-2

Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-4

Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . page A-4

Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . page A-5

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . page A-5

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-7

Software Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . .page A-7

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-7

Materials of Construction . . . . . . . . . . . . . . . . . . . . . . . . . page A-8

Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . .page A-9

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page A-12

ANTENNA SELECTION GUIDELINES

Selecting an antenna size can be as simple as matching the available process opening to the antenna size. However, when selecting an antenna, consider the following:

• A larger antenna will yield the strongest, most concentrated signal. Fluids with low dielectric constants, such as many hydrocarbons and solvents, only reflect a small portion of the radar signal. A more focused beam that is provided by a larger antenna will yield a stronger signal. This is especially important as the distance to the fluid surface increases.

• Ideally, the beam should not be obstructed by the sides of the vessel or any other equipment in the tank. Consult the beamwidth table to determine the size of the beam at its maximum expected distance (lowest tank level). Since beamwidth decreases as the antenna size increases, the beam from a larger antenna is least likely to encounter obstructions.

• In stilling wells and bypass assemblies, the pipe will prevent dispersion of the beam and will yield a very concentrated signal. In those situations, a smaller antenna is suitable. The use of stilling wells may impact the accuracy.

• In general, 3-in. and 4-in. antennas can be used in nozzles that have an unobstructed total length of up to 1 m (39 in.). It is recommended that 2-in. antennas be used only in nozzles where the total length is less than 0.35 m (14 in.). Consult the factory for assistance with exceptions.

www.rosemount.com

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APEX™ and APEX Sentry™ Radar Gauge

April 2003

TELECOM RESTRICTIONS

Country Installation Restrictions Other Comments

Argentina Metal tanks Average field intensity: <500µW/m at 3 meters.

Austria General approval Australia Shielded tanks 24.05-26.05 GHz, 75 nW eirp Belgium Metal tanks Bolivia Metal tanks No license required if installed in metal tank Brazil Metal tanks 24.05-26.05 GHz Emission designation 2G00N0N, RF 46mW Canada Metal tanks 24.05-26.05 GHz, emission designation 2G00N0N, 46mW Chad Nothing required, no approval agency Chile Metal tanks 24.05-26.05 GHz Average Field Intensity: <500 µW/m at 3 meters China 24.05-26.05 GHz, transmitting power <10mW, spurious emissions <-30dBm Colombia Costa Rica Metal tanks Transmitting power <10mW Croatia Standard EN55022 Czech Republic Metal tanks Denmark Metal tanks EN55022 Ecuador Egypt Eire/Ireland Metal tanks Finland Metal tanks France Germany Metal tanks Hong Kong Hungary Metal tanks India 24.05-26.05 GHz, 2G00N0N, <10mW Indonesia Italy Metal tanks Electromagnetically screened environment Jamaica Metal tanks Average field intensity: <500 µW/m at 3 meters.

Japan Jordan Nothing required, no approval agency Korea Kuwait Metal tanks Malaysia “In-house” and “in-building”

installation required Mexico Netherlands Metal tanks Manual must state that use is restricted to closed or vented metal tanks New Zealand Metal or radio frequency

shielded tanks Nicaragua Metal tanks Norway Metal tanks 24.04-26.05 GHz Oman Letter of no objection - “each application for use will have to be studied and if

Peru Philippines Poland Metal tanks Sit approval required for installations other than in metal tanks Portugal Metal tanks 24.05-26.05 GHz, 2.7 W eirp Puerto Rico Romania Russia Saudi Arabia No government approval needed Singapore Metal tanks 24.05-26.05 GHz, average field strength <500 µW/m at 3 meters, FMCW

Peak field intensity <5000 µW/m at 3 meters

(1)

Followed FCC

May only be used on a non-interference radio basis, broadcasting <50mW

<75nW eirp

allowed earn our approval and permission to import”

(1)

, 2G00N0N

A-2

Emerson Rosemount Apex, Rosemount Apex Sentry Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Section 1 Introduction

OVERVIEW The APEX and APEX Sentry Radar Gauges use a radar signal to measure

SYSTEM ARCHITECTURE

SERVICE SUPPORT If you have reason to believe that your APEX or APEX Sentry Radar Gauge

Section 2 Installation

BEFORE YOU INSTALL Follow these steps for proper installation:

CONSIDERATIONS This section includes information you should consider before installing the

VESSEL CHARACTERISTICS

PROCESS WINDOWS The process window typically consists of a PTFE cone that goes below the

MECHANICAL INSTALLATION

MOUNTING THE GAUGE NOTE

ELECTRICAL INSTALLATIONS

ELECTRICAL CONSIDERATIONS

POWERING UP Be sure to make all of the APEX or APEX Sentry Radar Gauge connections

Section 3 Configuration

BASIC CONFIGURATION PARAMETERS

MODEL 275 HART COMMUNICATION OPTION

AMS CONFIGURATION TOOL OPTION

RADAR CONFIGURATION TOOL (RCT) OPTION

PREVENTIVE MAINTENANCE

ALARM AND DIAGNOSTIC MESSAGES

LOCAL OPERATOR INTERFACE DISPLAY

HART COMMUNICATOR SOFTWARE DIAGNOSTICS

AMS CONFIGURATION SOFTWARE DIAGNOSTICS

REMOVING THE GAUGE HOUSING FROM THE FLANGE

Appendix A Reference Data

ANTENNA SELECTION GUIDELINES

TELECOM RESTRICTIONS