Magnetrol Eclipse 706GWR Guía del usuario

SIL Safety Manual

for Eclipse®Model 706

High Performance Guided Wave

Radar Level Transmitter

Thi manual complement and i intended to be u ed with the

Magnetrol®Eclip e®Model 706 High Performance Guided Wave

Radar In tallation and Operating manual (Bulletin 57-606).

Application

The HART®version of the ECLIPSE Mo el 706

Gui e Wave Ra ar level transmitter can be applie in

most process or storage vessels, bri les, an bypass

chambers up to the probe’s rate temperature an pres-

sure. It can be use in liqui s, slurries, or soli s with a

ielectric constant in the range 1.4–100 to meet the

safety system requirements of IEC 61508 (E ition 2.0,

2010) an IEC 61511-1.

Benefits

The MAGNETROL ECLIPSE Mo el 706 (HART)

transmitter provi es the following benefits to your

operation:

• Suitable for use to SIL 2 (Safe Failure Fraction =

93%) as stan alone evice in epen ently assesse

(har ware assessment) by exi a as per IEC 61508/

IEC 61511-1.

• Probe esigns to +850 °F (+454 °C), 6250 psig

(430 bar) an full vacuum.

• Cryogenic applications to -320 °F (-190 °C).

• Intrinsically safe, Explosion-proof an Non-Incen ive

approvals.

• Quick connect/ isconnect probe coupling.

57-656 SIL Safety Manual for ECLIPSE Model 706

Table of Contents

Eclipse®Model 706 High Performance Guided Wave Radar Level Transmitter

SIL Safety Manual for Eclipse®Model 706

1.0 Introduction ...................................................................3

1.1 Pro uct Description..................................................3

1.2 Theory of Operation.................................................3

1.3 Determining Safety Integrity Level (SIL) ..................3

2.0 Applicable Models ..........................................................4

3.0 Level Measuring System .................................................4

3.1 Miscellaneous Electrical Consi erations ....................4

3.1.1 Pollution Degree 2 .........................................4

3.1.2 Overvoltage ....................................................4

4.0 Mean Time To Restoration MTTR).............................5

5.0 Supplementary Documentation......................................5

6.0 General Instructions.......................................................5

6.1 Systematic Limitations ..............................................5

6.1.1 Application.....................................................5

6.1.2 Environmental................................................6

6.1.2.1 Storage.............................................6

6.2 Installation ................................................................6

6.3 Skill Level of Personnel .............................................6

6.4 Necessary Tools .........................................................6

6.5 Configuration ...........................................................7

6.5.1 General...........................................................7

6.5.2 Configuration.................................................7

6.5.3 Write Protecting/Locking ..............................7

6.6 Site Acceptance Testing .............................................7

6.7 Recor ing Results......................................................8

6.8 Maintenance ..............................................................8

6.8.1 Diagnostics.....................................................8

6.8.2 Troubleshooting .............................................8

7.0 Recurrent Function Tests ...............................................8

7.1 Proof Testing.............................................................8

7.1.1 Intro uction...................................................8

7.1.2 Interval...........................................................8

7.1.3 Recor ing Results...........................................9

7.1.4 Proof Test Proce ure.......................................9

8.0 Appendices ...................................................................11

8.1 SIL Declaration of Conformity ...............................11

8.2 FMEDA Report: exi a Management Summary ......12

8.3 Specific Mo el 706 Values ......................................14

8.4 PFD Graph.............................................................14

8.5 Report: Lifetime of Critical Components................15

57-656 SIL Safety Manual for ECLIPSE Model 706

1.0 Introduction

1.1 Product Description

The ECLIPSE Mo el 706 High Performance Gui e Wave

Ra ar Level Transmitter is a loop-powere , 24 VDC level

transmitter, base on Gui e Wave Ra ar (GWR) technology.

NOTE: For Safety Instrumented Systems usage, it is assumed that the

4 20 mA output is used as the primary safety variable.

The analog output from the Mo el 706 meets the NAMUR

NE 43 stan ar (3.8 mA to 20.5 mA usable). The transmitter

contains self- iagnostics an is programme to rive the

output to a user-selecte failure state, either low or high,

upon internal etection of a iagnostic in icator. The evice

can be equippe with or without a graphic liqui crystal

isplay (LCD).

Table 1 in icates the version of the ECLIPSE Mo el 706

transmitter suitable for SIL 2 applications base on the

har ware assessment.

1.2 Theory of Operation

Gui e Wave Ra ar is base upon the principle of TDR

(Time Domain Reflectometry). TDR utilizes pulses of electro-

magnetic energy transmitte own a wave gui e (probe).

When a pulse reaches a liqui surface that has a higher

ielectric constant than the air (εr= 1) in which it is traveling,

a portion of the pulse is reflecte . The transit time of the

pulse is then measure via ultra high-spee timing circuitry

that provi es an accurate measure of the liqui level. The

amplitu e of the reflection epen s on the ielectric con-

stant of the pro uct. The higher the ielectric constant, the

larger the reflection.

1.3 Deter ining Safety Integrity Level (SIL)

The ECLIPSE Mo el 706 is classifie as a Type B evice

accor ing to IEC61508.

Tables 2 & 3 efine the criteria for the achievable SIL against

the target mo e of operation in Deman Mo e Operation.

• Table 2 shows the relationship between the Safety Integrity

Level (SIL) an the Probability of Failure on Deman

Average (PFDavg).

• Table 3 is use to etermine the achievable SIL as a func-

tion of the Har ware Fault Tolerance (HFT) an the Safe

Failure Fraction (SFF) for the complete safety function

(Type B—complex components as per IEC 61508 Part 2)

of which the level tran mitter i one component.

Model 706-511x-xxx (HART)

Table 3

Minimum hardware fault tolerance

Type B sensors, final elements and non-PE logic solvers

SFF

Hardware Fault

Tolerance (HFT)

012

None: <60% Not

Allowed SIL 1 SIL 2

Low: 60% to <90% SIL 1 SIL 2 SIL 3

Medium: 90% to <99% SIL 2 SIL 3

High: ≥99% SIL 3

Table 2

SIL vs. PFDavg

Table 1

ECLIPSE 706 Model Number

Safety

Integrity Level

(SIL)

Target Average

probability of failure

on demand (PFDavg)

4≥10-5 to <10-4

3≥10-4 to <10-3

2≥10-3 to <10-2

1≥10-2 to <10-1

457-656 SIL Safety Manual for ECLIPSE Model 706

2.0 Applicable Models

This manual is only applicable to the following HART

versions of the ECLIPSE Mo el 706 Transmitter:

3.0 Level Measuring Syste

The iagram at left shows the structure of a typical measuring

system incorporating the ECLIPSE Mo el 706 transmitter.

This SIL-rate evice is only available with an analog signal

(4–20 mA) with HART communications; an , the measure-

ment signal use by the logic solver must be the analog 4–

20 mA signal proportional to the level generate .

• For fault monitoring, the logic unit must recognize both

high alarms (≥ 21.5 mA) an low alarms (≤ 3.6 mA).

• If the logic solver loop uses intrinsic safety barriers, caution

must be taken to ensure the loop continues to operate

properly un er the low alarm con ition.

• The only unsafe mo e is when the unit is rea ing an

incorrect level within the 4–20 mA range (> ±2% eviation).

• MAGNETROL efines a safe failure as one in which the

4–20 mA current is riven out of range (i.e., less than

3.8 mA or greater than 21.5 mA).

3.1 Miscellaneous Electrical Considerations

Following are miscellaneous electrical issues to be consi ere

in a safety system.

3.1.1 Pollution Degree 2

The ECLIPSE Mo el 706 transmitter is esigne for use

in a Category II, Pollution Degree 2 installation, which is

efine by a noncon uctive pollution of the sort where

occasionally a temporary con uctivity cause by con ensation

must be expecte .

This is the usual pollution egree use for equipment being

evaluate to IEC/EN 61010.

3.1.2 Over-voltage

The ECLIPSE Mo el 706 transmitter has, as stan ar , over-

voltage protection per CE requirements. When consi ering

Hi-pot, Fast Transients an Surge, this protection is to 1000

volts (1 KV). Therefore, there shoul be no unsafe failure

mo es up to 1 KV.

Actuator

PACTware with

Eclipse® 3.x DTM

HART Modem

Eclipse® Model 706

Logic

Unit

57-656 SIL Safety Manual for ECLIPSE Model 706

Overvoltage Category II is a local level, covering appliances,

portable equipment, etc., with smaller, transient, overvoltages

than those characteristic of Overvoltage Category III. This

category applies from the wall plug to the power-supply

isolation barrier (transformer).

As the typical plant environment is Overvoltage Category II,

most equipment evaluate to the requirements of IEC/EN

61010 are consi ere to belong in that classification.

4.0 Mean Ti e To Restoration (MTTR)

SIL eterminations are base on a number of factors inclu ing

the Mean Time To Restoration (MTTR). The analysis for

the ECLIPSE Mo el 706 is base on a MTTR of 24 hours.

5.0 Supple entary Docu entation

• The ECLIPSE Mo el 706 Installation an Operating

Manual 57-606 must be available to ensure proper

installation of the transmitter.

• One of the following Electronic Device Description Files is

also require if HART is use :

• Manufacturer Co e 0x56

• Mo el 706 Device ID 0x56E0, evice revision 1,

DD revision 2.

• For evice installations in a classifie area, the relevant safety

instructions an electrical co es must be followe .

6.0 General Instructions

6.1 Syste atic Li itations

The following instructions must be observe to avoi

systematic failures.

6.1.1 Application

Choosing the proper Gui e Wave Ra ar (GWR) probe is

the most important ecision in the application process.

Coaxial, twin flexible cable, an single element (ro or cable)

are the three basic configurations. As the probe configuration

establishes fun amental performance characteristics, the

probe for use with the ECLIPSE Mo el 706 transmitter

shoul be selecte as appropriate for the application.

Careful selection of probe esign an materials for a specific

application will minimize me ia buil up on the probe.

Refer to Installation an Operating Manual 57-606 for

more information.

657-656 SIL Safety Manual for ECLIPSE Model 706

6.1.2 Environmental

Refer to Installation an Operating Manual 57-606 for

Environmental limitations.

6.1.2.1 Storage

The evice shoul be store in its original shipping box

an not be subjecte to temperatures outsi e the storage

temperature range of -50 to +185 °F (-46 to +85 °C).

6.2 Installation

Refer to the Mo el 706 Installation an Operating Manual

57-606 manual for complete installation instructions.

I/O Manual 57-606:

• Contains information on the use, changing an resetting of

the passwor -protection function.

• Provi es menu selection items for configuration of the

transmitter as a level sensing evice.

• Offers configuration recommen ations.

NOTE: This SIL evaluation has assumed that the customer will be able

to acknowledge an over- or under-current condition via the

Logic Solver.

6.3 Skill Level of Personnel

Personnel following the proce ures of this safety manual

shoul have technical expertise equal to or greater than that

of a qualifie Instrument Technician.

6.4 Necessary Tools

Following are the necessary tools nee e to carry out the

prescribe proce ures:

• Open-wrenches or a justable wrench to fit the process

connection size an type.

• Coaxial probe: 11⁄2" (38mm)

• Twin Ro an Single ro probes: 17⁄8" (47mm)

• Transmitter: 11⁄2" (38mm)

• Torque wrench is highly esirable

• Flat-bla e screw river

• Cable cutter an 3⁄32" (2.5mm) hex wrench (7y1, 7y2, 7y5

an 7y7 Flexible probes only)

• Digital multimeter or igital volt/ammeter

• 24 VDC power supply, 23 mA minimum

57-656 SIL Safety Manual for ECLIPSE Model 706

6.5 Configuration

6.5.1 General

The ECLIPSE Mo el 706 Transmitter can be configure via

the local isplay, a HART compatible han hel terminal, or

a personal computer using PACTware™an the associate

DTM.

6.5.2 Configuration

Ensure the parameters have been properly configure for

the application an probe. Special consi eration shoul be

given to the following configuration parameters:

DIELECTRIC: Ensure this is set to “Below 1.7” for

propane an butane applications or “1.7–3.0” for the

majority of typical hy rocarbon applications.

FAULT: DO NOT choose HOLD for this parameter as a

Fault will not be annunciate on the current loop.

BLOCKING DISTANCE: This value MUST be Zero for

SIL applications. Consult factory prior to making any

changes.

LOOP CONTROL MODE: Ensure this is set to ENABLED.

THRESHOLD: Set to FIXED if use in a hy rocarbon

application with any possibility of water bottoms.

PASSWORD: Must be change to a specific value other

than Zero.

6.5.3 Write Protecting / Locking

The Mo el 706 transmitter is passwor protecte with a

numerical passwor between 0 an 99,999.

NOTE: Default Password = 0 = Password disabled.

Refer to the Mo el 706 Installation an Operating Manual

Bulletin 57-606 for a itional information on passwor

protection.

It is require that, after configuration of the system is com-

plete, a passwor is utilize to prevent ina vertent changes

to the evice.

6.6 Site Acceptance Testing

To ensure proper operation after installation an configura-

tion, a site acceptance test shoul be complete . This

proce ure is i entical to the Proof Test Proce ure escribe

in Section 7.1.4.

6.7 Recording Results

Results of Site Acceptance Testing must be recor e for

future reference.

6.8 Maintenance

6.8.1 Diagnostics

Internal iagnostic testing within the Mo el 706 transmit-

ter occurs approximately five times per secon (1 every

200 mS). A message will appear an the output current will

be riven to 3.6 or 22mA (customer epen ent) upon

etection of a Fault.

6.8.2 Troubleshooting

Report all failures to the MAGNETROL Technical Support

Department.

Refer to the Mo el 706 Installation an Operating Manual

Bulletin 57-606 for troubleshooting evice errors.

• As there are no moving parts in this evice, the only main-

tenance require is the SIL Proof Test.

• Firmware can only be upgra e by factory personnel.

7.0 Recurrent Function Tests

7.1 Proof Testing

7.1.1 Introduction

Following is the proce ure utilize to etect Dangerous

Un etecte (DU) failures.

This proce ure will etect approximately 84% of possible

DU failures in the Mo el 706-511x-xxx.

7.1.2 Interval

To maintain the appropriate Safety Integrity Level of a

Safety Instrumente System, it is imperative that the entire

system be teste at regular time intervals (shown as TI in the

appropriate stan ar s). The suitable SIL for the Mo el 706

transmitter is base on the assumption that the en user

will carry out this test an inspection at least once per year.

NOTE: It is the responsibility of the owner/operator to select the type

of inspection and the time period for these tests.

857-656 SIL Safety Manual for ECLIPSE Model 706

57-656 SIL Safety Manual for ECLIPSE Model 706

7.1.3 Recording Results

Results of the Proof Test shoul be recor e for future

reference.

7.1.4 Suggested Proof Test

The suggeste proof test below, in combination with the

built-in automatic iagnostics, will etect 98% of possible

DU failures in Mo el 706-511x-xxx.

Step Action

1 Bypass the PLC or take other action to avoid a false trip.

Inspect the Unit in detail outside and inside for physical damage or evidence of environmental or

process leaks

a.) Inspect the exterior of the Unit housing. If there is any evidence of physical damage that may

impact the integrity of the housing and the environmental protection, the unit should be repaired

or replaced.

b.) Inspect the interior of the Unit. Any evidence of moisture, from process or environment, is an

indication of housing damage, and the unit should be repaired or replaced.

Use the Unit’s DIAGNOSTICS menu to observe Present Status, and review EVENT HISTORY in the

Event Log. Up to 10 events are stored. The events will be date and time stamped if the internal clock is

set and running. It is suggested that the internal clock be set at the time of commissioning of the unit.

If the clock is set at the time of the proof test, event times are calculated.

a.) Choose the menu DIAGNOSTICS / Present Status.

i.) Present Status should indicate OK.

b.) Choose the menu DIAGNOSTICS / EVENT HISTORY/ Event Log

i.) Any FAULT or WARNING messages must be investigated and understood.

ii.) Corrective actions should be taken for FAULT messages.

Use the DIAGNOSTICS menu to perform a “CURRENT LOOP TEST”. Select DIAGNOSTICS /

ADVANCED DIAGNOSTICS / TRANSMITTER TESTS / Analog Output Test to change the output loop

current and confirm the actual current matches the value chosen.

a.) Send a HART command to the transmitter (or use the local interface) to go to the high alarm

current output, 22 mA, and verify that the analog current reaches the valve.

i.) This step tests for compliance voltage problems such as low supply voltage or increased

wiring resistance.

ii.) This also tests for current loop control circuitry and adjustment problems.

b.) Send a HART command to the transmitter (or use the local interface) to go to the low alarm

current output, 3.6 mA, and verify that the analog current reaches the valve.

i.) This step tests for high quiescent current and supply voltage problems.

ii.) This also tests for current loop control circuitry and adjustment problems.

c.) Exit the “Analog Output Test” and confirm that the output returns to its original state—with the

proper loop current as indicated and controlled by the unit.

continued on next page

10 57-656 SIL Safety Manual for ECLIPSE Model 706

Step Action

Use the DIAGNOSTICS menu to observe the present Echo Curve. Confirm that the ECHO Waveform is

normal. The echo curve is dependent on the type of probe, the installation conditions and the level of

process on the probe. Comparison of the present Echo Curve to the one stored at the time of commis-

sioning the unit gives additional confidence of the normal operation of the unit. Use of the DTM and

digital communications is necessary for comparison of echo curves.

a.) Select DIAGNOSTICS/ ECHO CURVE/ View Echo Curve

i.) Observe the present Echo Curve, identify the characteristic portions of the waveform related

to the FIDUCIAL, Process level, End of Probe and other features.

ii.) Confirm that the FIDUCIAL appears acceptable. Confirm the FIDUCIAL is located where

expected.

iii.) Confirm that the signal from the process level appears normal and is located as expected.

iv.) Verify that the baseline of the waveform is smooth and flat.

v.) Compare to Echo Curve from commissioning in the FIDUCIAL area.

b.) Access the Fiducial Ticks and Fiducial Strength values in the menu: DIAGNOSTICS /

ADVANCES DIAGNOSTICS / INTERNAL VALUES

i.) Observe and record:

1.) Fiducial Ticks _____________

2.) Fiducial Strength _____________

ii.) Confirm that these values match the previous values.

1.) Fiducial Ticks differs within ±100

2.) Fiducial Strength differs within ±15

6Perform two-point calibration check of the transmitter by applying level to two points on the probe and

compare the transmitter display reading and the current level value to a known reference measurement.

7If the calibration is correct the proof test is complete. Proceed to step 9.

If the calibration is incorrect, remove the transmitter and probe from the process. Inspect the probe for

buildup or clogging. Clean the probe, if necessary. Perform a bench calibration check by shorting the

probe at two points. Measure the level from the bottom of the probe to the two points and compare to

the transmitter display and current level readings.

a.) If the calibration is off by more than 2%, contact the factory for assistance.

b.) If the calibration is correct, the proof test in complete.

c.) Re-install the probe and transmitter.

9Restore loop to full operation.

10 Remove the bypass from the safety PLC to restore normal operation.

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