Rosemount TankRadar Rex 3900 Series Guía del usuario

www.rosemount-tg.com

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Safety Manual For Use In Safety Instrumented Systems

Product Discontinued

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

www.rosemount-tg.com

Safety Manual

Rosemount TankRadar Rex

First edition

Rosemount Tank Radar AB

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

www.rosemount-tg.com

Rosemount TankRadar AB

Spare Parts

Any substitution of non-recognized spare parts may jeopardize

safety. Repair, e.g. substitution of components etc, may also

jeopardize safety and is under no circumstances allowed.

Rosemount TankRadar AB will not take any responsibility for

faults, accidents, etc caused by non-recognized spare parts or

any repair which is not made by Rosemount TankRadar AB.

WARNING

Do not open the Integrated Junction Box JBi

when the circuit is alive.

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Contents

1. SCOPE AND PURPOSE OF THE SAFETY MANUAL . . . . . . . . . . 1

2. REFERENCE DOCUMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3. SCOPE OF THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1 PURPOSE OF THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.2 ASSUMPTIONS AND RESTRICTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.3 FUNCTIONAL SPECIFICATION OF THE SAFETY FUNCTIONS . . . . . . . 3

3.4 PARAMETERS RELATED TO SAFETY FUNCTIONS . . . . . . . . . . . . . . . . 7

3.5 HARDWARE AND SOFTWARE CONFIGURATION . . . . . . . . . . . . . . . . . 12

4. INSTALLATION AND CONFIGURATION. . . . . . . . . . . . . . . . . . 13

4.1 CONFIGURATION WITH ONE RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2 CONFIGURATION WHEN USING TWO RELAYS IN SERIES . . . . . . . . . 17

4.3 VERIFICATION OF THE SAFETY FUNCTION . . . . . . . . . . . . . . . . . . . . . 20

4.4 WRITE PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5. PROOF TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1 TRIGGERING THE RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2 HAND DIPPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.3 VERIFICATION OF THE RELAY FUNCTION . . . . . . . . . . . . . . . . . . . . . . 23

5.4 REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6. TERMS AND DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Appendix FMEDA and Proven-in-use Assessment . . . . . . .27

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Contents

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Chapter 1 Scope and Purpose of the

Safety Manual

1. Scope and Purpose of the Safety Manual

The purpose of the safety manual is to document all the

information, relating to TankRadar Rex 3900 Series, which is

required to enable the integration of TankRadar Rex into a safety-

related system, in compliance with the requirements of IEC

61508.

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Chapter 2 Reference Documents

2. Reference Documents

• IEC 61508

• IEC 61511

• Rosemount TankRadar Rex Installation Manual,

Ref. no. 308014EN

• Rosemount TankRadar Rex Service Manual,

Ref. no. 308012EN

• Rosemount TankRadar Rex Special Safety Instruction,

Ref. no. 308016E

• TankMaster WinSetup User’s Guide, Ref. no. 303027EN

• Rosemount TankRadar REX Technical Description,

Ref. no. 703010EN.

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Chapter 3 Scope of the Product

3. Scope of the Product

3.1 Purpose of the Product

The Rosemount TankRadar Rex 3900 Series is designed for high

performance level gauging in various types of storage tanks.

Temperature sensors, remote display unit, water level sensors,

pressure sensors, and other devices can be connected. Two

relays are available for alarm indication and overfill and dry run

protection.

3.2 Assumptions and Restrictions

Install the TankRadar Rex according to the instructions in this

document. The Rosemount TankRadar Rex Installation Manual

and the Rosemount TankRadar Rex Special Safety Instruction

provide further instructions for a safe installation.

Note that the TankRadar Rex is not safety-rated during

maintenance work, configuration changes, or other activity that

affects the Safety Function. Alternative means should be used to

ensure process safety during such activities.

False echoes within the radar beam from flat obstructions with a

sharp edge may lead to a situation where the TankRadar Rex can

no longer be used for safety related functions with the listed failure

rates, Safe Failure Fraction and PFDAVG. However, reduced proof

test intervals can help to detect such unwanted causes.

Operating conditions are available in the TankRadar Rex

Technical Description, ref no. 703010EN.

3.3 Functional Specification of the Safety Functions

The Safety Function is based on the relay output (one or two

relays) used as the primary safety variable for overfill and dry run

protection. The relay function is configured to activate the alarm

mode at a preset product Level or product Ullage (Ullage is the

space between the top of the tank and the product surface).

Safety Manual

308020EN, Edition 1

June 2007

Rosemount TankRadar Rex

Chapter 3 Scope of the Product

TankRadar Rex is equipped with two cable outputs for intrinsically

safe and non-intrinsically safe connections, respectively. Wires

are clearly marked with numbers and designation of wires is

shown on a printed plate at the cable outputs. The transmitter can

also be equipped with an Integrated Junction Box (JBi).

W11 is for the relays, the TRL/2 Bus, and the non-intrinsically safe

power supply.

W12 is for the intrinsically safe connection of Data Acquisition Unit

(DAU), Remote Display Unit RDU40, analog inputs, and

temperature sensors.

Figure 1. Electrical connections on the TankRadar REX.

Connect to the relay ports on the W11 side, or to the X11 terminal

if the TankRadar REX with Integrated Junction Box JBi is used:

W12 Intrinsically

safe connections W11 Non-Intrinsically

safe connections

Integrated Junction Box (JBi)

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