SMAR LD303 Manuel

Profibus PA Pressure Transmitter

L D 3 0 3 M E

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Introduction

III

INTRODUCTION

The LD303 is from the first generation of Profibus-PA devices. It is a transmitter for differential,

absolute and gauge pressure, level and flow measurements. It is based on a field-proven capacitive

sensor that provides reliable operation and high performance. The digital technology used in the

LD303 enables the choice of several types of transfer functions, an easy interface between the field

and the control room and several interesting features that considerably reduce the installation,

operation and maintenance costs.

The LD303 is part of Smar's complete 303 line of Profibus-PA devices.

Some of the advantages of bi-directional digital communications are known from existing smart

transmitter protocols: Higher accuracy, multi-variable access, remote configuration and diagnostics,

and multi-dropping of several devices on a single pair of wires.

The system controls variable sampling, algorithm execution and communication so as to optimize

the usage of the network, not loosing time. Thus, high closed loop performance is achieved.

Using Profibus technology, with its capability to interconnect several devices, very large control

schemes can be constructed. In order to be user friendly the function block concept was introduced.

The LD303, like the rest of the 303 family, has some Function Blocks built in, like Analog Input and

Totalizer Block.

The need for implementation of Fieldbus in small as well as large systems was considered

when developing the entire 303 line of Profibus-PA devices. They have common features

and can configured locally using a magnetic tool, eliminating the need for a configurator or

console in many basic applications.

The LD303 is available as a product on its own, but also replaces the circuit board for the LD301.

They use the same sensor board. Refer to the maintenance section of this manual for instructions

on upgrading. The LD303 uses the same hardware and housing for the LD303.The LD303 is part of

SMAR's Series 303 of Profibus-PA devices.

The LD303, like its predecessor LD301, has some built-in blocks, eliminating the need for a

separate control device. The communication requirement is considerably reduced, and that means

less dead-time and tighter control is achieved, not to mention the reduction in cost. They allow

flexibility in control strategy implementation.

Get the best results of the LD303 by carefully reading these instructions.

LD303 Operation and Maintenance Instruction Manual

NOTE

This Manual is compatible with version 2.XX, where 2 denotes software version and XX software release. The

indication 2.XX means that this manual is compatible with any release of software version 2.

Waiver of responsibility

The contents of this manual abides by the hardware and software used on the current equipmen

version. Eventually there may occur divergencies between this manual and the equipment. The

information from this document are periodically reviewed and the necessary or identified corrections

will be included in the following editions. Suggestions for their improvement are welcome.

Warning

For more objectivity and clarity, this manual does not contain all the detailed information on the

product and, in addition, it does not cover every possible mounting, operation or maintenance

cases.

Before installing and utilizing the equipment, check if the model of the acquired equipment complies

with the technical requirements for the application. This checking is the user’s responsibility.

If the user needs more information, or on the event of specific problems not specified or treated in

this manual, the information should be sought from Smar. Furthermore, the user recognizes that the

contents of this manual by no means modify past or present agreements, confirmation or judicial

relationship, in whole or in part.

All of Smar’s obligation result from the purchasing agreement signed between the parties, which

includes the complete and sole valid warranty term. Contractual clauses related to the warranty are

not limited nor extended by virtue of the technical information contained in this manual.

Only qualified personnel are allowed to participate in the activities of mounting, electrical connection,

startup and maintenance of the equipment. Qualified personnel are understood to be the persons

familiar with the mounting, electrical connection, startup and operation of the equipment or othe

similar apparatus that are technically fit for their work. Smar provides specific training to instruct and

qualify such professionals. However, each country must comply with the local safety procedures,

legal provisions and regulations for the mounting and operation of electrical installations, as well as

with the laws and regulations on classified areas, such as intrinsic safety, explosion proof, increased

safety and instrumented safety systems, among others.

The user is responsible for the incorrect or inadequate handling of equipments run with pneumati

or hydraulic pressure or, still, subject to corrosive, aggressive or combustible products, since thei

utilization may cause severe bodily harm and/or material damages.

The field equipment referred to in this manual, when acquired for classified or hazardous areas, has

its certification void when having its parts replaced or interchanged without functional and approval

tests by Smar or any of Smar authorized dealers, which are the competent companies for certifying

that the equipment in its entirety meets the applicable standards and regulations. The same is true

when converting the equipment of a communication protocol to another. In this case, it is necessar

sending the equipment to Smar or any of its authorized dealer. Moreover, the certificates are

different and the user is responsible for their correct use.

Always respect the instructions provided in the Manual. Smar is not responsible for any losses

and/or damages resulting from the inadequate use of its equipments. It is the user’s responsibility to

know and apply the safety practices in his country.

Table of Contents

TABLE OF CONTENTS

SECTION 1 - INSTALLATION .....................................................................................................................1.1

GENERAL ...................................................................................................................................................................1.1

HOUSING ROTATION................................................................................................................................................1.9

BUS TOPOLOGY AND NETWORK CONFIGURATION ..........................................................................................1.11

WIRING ...................................................................................................................................................................................1.11

INTRINSIC SAFETY BARRIER ................................................................................................................................1.12

JUMPER CONFIGURATION ....................................................................................................................................1.12

POWER SUPPLY .....................................................................................................................................................1.13

INSTALLATION IN HAZARDOUS AREAS ...............................................................................................................1.13

EXPLOSION/FLAME PROOF...................................................................................................................................1.13

INTRINSICALLY SAFE .............................................................................................................................................1.13

SECTION 2 - OPERATION ..........................................................................................................................2.1

FUNCTIONAL DESCRIPTION - SENSOR .................................................................................................................2.1

FUNCTIONAL DESCRIPTION – ELECTRONICS......................................................................................................2.2

DISPLAY .....................................................................................................................................................................2.3

SECTION 3 - CONFIGURATION .................................................................................................................3.1

TRANSDUCER BLOCK..............................................................................................................................................3.1

TRANSDUCER BLOCK DIAGRAM ............................................................................................................................3.2

PRESSURE TRANSDUCER BLOCK PARAMETER DESCRIPTION........................................................................3.2

PRESSURE TRANSDUCER BLOCK PARAMETER ATTRIBUTES..........................................................................3.6

LD303 - CYCLIC CONFIGURATION..........................................................................................................................3.8

HOW TO CONFIGURE THE TRANSDUCER BLOCK ...............................................................................................3.9

TABLE HANDLING..................................................................................................................................................................3.11

HOW TO CONFIGURE THE ANALOG INPUT BLOCK ...........................................................................................3.15

HOW TO CONFIGURE THE TOTALIZER BLOCK ..................................................................................................3.19

LOWER AND UPPER TRIM .....................................................................................................................................3.24

PRESSURE TRIM - LD303.......................................................................................................................................3.24

VIA LOCAL ADJUSTMENT ......................................................................................................................................3.26

CHARACTERIZATION TRIM....................................................................................................................................3.27

SENSOR INFORMATION.........................................................................................................................................3.29

TEMPERATURE TRIM .............................................................................................................................................3.29

SENSOR DATA READING.......................................................................................................................................3.30

TRANSDUCER DISPLAY – CONFIGURATION.......................................................................................................3.31

DISPLAY TRANSDUCER BLOCK............................................................................................................................3.31

DEFINITION OF PARAMETERS AND VALUES......................................................................................................3.32

LOCAL ADJUSTMENT TREE - QUICK GUIDE .......................................................................................................3.35

PROGRAMMING USING LOCAL ADJUSTMENT....................................................................................................3.36

J1 JUMPER CONNECTION .....................................................................................................................................3.37

W1 JUMPER CONNECTION....................................................................................................................................3.37

SECTION 4 - MAINTENANCE PROCEDURES...........................................................................................4.1

GENERAL ...................................................................................................................................................................4.1

DISASSEMBLY PROCEDURE...................................................................................................................................4.2

SENSOR CLEANING ................................................................................................................................................................4.2

ELECTRONIC CIRCUIT ............................................................................................................................................................4.3

REASSEMBLE PROCEDURE....................................................................................................................................4.3

SENSOR MOUNTING ...............................................................................................................................................................4.3

ELECTRONIC CIRCUIT ............................................................................................................................................................4.4

INTERCHANGEABILITY.............................................................................................................................................4.4

UPGRADING LD301 TO LD303 .................................................................................................................................4.5

RETURNING MATERIALS .........................................................................................................................................4.5

SMAR INSULATOR KIT..............................................................................................................................................4.9

SMAR INSULATOR KIT MOUNTING........................................................................................................................................4.9

APPLICATION WITH HALAR ...................................................................................................................................4.14

LD303 Operation and Maintenance Instruction Manual

TECHNICAL SPECIFICATION ................................................................................................................................................4.14

PERFORMANCE SPECIFICATION.........................................................................................................................................4.14

TPE – TOTAL PROBABLE ERROR (SOFTWARE) .................................................................................................4.14

ORDERING CODE FOR THE SENSOR ..................................................................................................................4.16

SECTION 5 - TECHNICAL CHARACTERISTIC..........................................................................................5.1

TECHNICAL CHARACTERISTICS OF HIGH PERFORMANCE - CODE L1.............................................................5.4

ORDERING CODE .....................................................................................................................................................5.5

OPTIONAL ITEMS ......................................................................................................................................................5.6

OPTIONAL ITEMS ......................................................................................................................................................5.8

OPTIONAL ITEMS ....................................................................................................................................................5.10

APPENDIX A - CERTIFICATIONS INFORMATION ................................................................................... A.1

EUROPEAN DIRECTIVE INFORMATION................................................................................................................................ A.1

OTHER APPROVAL ...................................................................................................................................................A.1

SANITARY APPROVAL............................................................................................................................................................ A.1

IP68 REPORT: ......................................................................................................................................................................... A.1

HAZARDOUS LOCATIONS CERTIFICATIONS.........................................................................................................A.1

NORTH AMERICAN CERTIFICATIONS .................................................................................................................................. A.2

EUROPEAN CERTIFICATIONS............................................................................................................................................... A.2

SOUTH AMERICA CERTIFICATION........................................................................................................................................ A.3

ASIA CERTIFICATION ............................................................................................................................................................. A.3

IDENTIFICATION PLATE AND CONTROL DRAWING .............................................................................................A.3

IDENTIFICATION PLATE ......................................................................................................................................................... A.3

CONTROL DRAWING.............................................................................................................................................................. A.7

APPENDIX B – SRF – SERVICE REQUEST FORM.................................................................................. B.1

APPENDIX C – SMAR WARRANTY CERTIFICATE ................................................................................. C.1

Installation Flowchart

VII

nsta

owc

art

Has the transmitter

been configured

in bench for the

application ?

Configure the transmitter

( section 1 and section 3).

Start

Field Installation.

Install the transmitter in protected

areas from weather proof.

Install the transmitter (mechanically

and electrically) according to the

application, verifying the most

appropriate position of the LCD.

Network installation must be

according to IEC61158-2

recomendations (Section 4).

Verify area classification and

its respective practices.

Yes

Configure the measuring

to 0% and 100% ( Section 3 ).

range

Configure Fail Safe value

( Section 3 ).

Configure Damping ( Section 3 ).

Configure the indication in LCD

( Section 3 ).

Apply pressure.

Is the measurement

OK ?

Consult the manual (section 4)

- Maintenance.

Yes Power the transmitter appropriately.

Is the engineering

unit wrong?value

Is it solved ?

Do the Trim.Zero

Yes

the

measuring wrong

Does it have wet leg?

Yes

Configure the physical device

address (Section 3).

Using the GSD file, configure the

cyclic data in the system configuration

tool (Section 3)

LD303 Operation and Maintenance Instruction Manual

VIII

Section 1

1.1

INSTALLATION

General

NOTE

The installation carried out in hazardous areas should follow the recommendations of the

IEC60079-14 standard.

The overall accuracy of a flow, level, or pressure measurement depends on several variables.

Although the transmitter has an outstanding performance, proper installation is essential to

maximize its performance.

Among all factors, which may affect transmitter accuracy, environmental conditions are the most

difficult to control. There are, however, ways of reducing the effects of temperature, humidity and

vibration.

The LD303 has a built-in temperature sensor to compensate for temperature variations. At the

factory, each transmitter is submitted to a temperature cycle process, and the characteristics under

different pressures and temperatures are recorded in the transmitter memory. At the field, this

feature minimizes the temperature variation effect.

Locating the transmitter in areas protected from extreme environmental changes can minimize

temperature fluctuation effects.

The transmitter should be installed in such a way as to avoid, as much as possible, direct exposure

to the sun or any source of irradiated heat. Installation close to lines and vessels with high

temperatures should also be avoided. Use longer sections of impulse piping between tap and

transmitter whenever the process fluid is at high temperatures. Use of sunshades or heat shields to

protect the transmitter from external heat sources should be considered.

Humidity is fatal for electronic circuits. In areas subjected to high relative humidity, the O-rings for

the electronic housing covers must be correctly placed and the covers must be completely closed by

tightening them by hand until the O-rings are compressed.

Do not use tools to close the covers. Removal of the electronics cover in the field should be reduced

to the minimum necessary, as each time it is removed; the circuits are exposed to the humidity. The

electronic circuit is protected by a humidity proof coating, but frequent exposure to humidity may

affect the protection provided. It is also important to keep the covers tightened in place. Every time

they are removed, the threads are exposed to corrosion, since painting cannot protect these parts.

Code-approved sealing methods should be employed on conduit entering the transmitter. The

unused outlet connection should be plugged accordingly.

Although the transmitter is virtually insensitive to vibration, installation close to pumps, turbines or

other vibrating equipment should be avoided. Proper winterization (freeze protection) should be

employed to prevent freezing within the measuring chamber, since this will result in an inoperative

transmitter and could even damage the cell.

NOTE

When installing or storing the level transmitter, the diaphragm must be protected to avoid

scratching-denting or perforation of its surface.

The transmitter has been designed to be both rugged and lightweight at the same time. This makes

its mounting easier; mounting positions are shown in Figure 1.1.

LD303 - Operation and Maintenance Instruction Manual

1.2

Figure 1.1 (a) – Dimensional Drawing and Mounting Position - Differential, Flow, Gage, Absolute and High Static Pressure

Transmitters with Mounting Bracket

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