SMAR Ld301 Manuel

Intelligent Pressure Transmitter

With Control Capability

OPERATION AND MAINTENANCE

INSTRUCTION / MANUAL

LD301ME

LD301

ERSION 6

SEP / 12

web: www.smar.com/contactus.asp

www.smar.com

Specifications and information are subject to change without notice.

Up-to-date address information is available on our website.

smar

Introduction

III

INTRODUCTION

LD301 is a smart pressure transmitter for differential, absolute, gauge, 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 LD301 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 installation, operation and maintenance costs.

Besides all the functions offered by other smart transmitters, LD301offers the following functions:

3

)( P- used for trapezoidal weirs in open channel flow measurement.

5

)( P- used for V-notch weirs in open channel flow measurement.

TABLE - the pressure signal is linearly customized according to a 16-point table, enabling, e.g.,

level-to-volume conversion of a horizontal cylindrical tank.

CONTROLLER - the Process Variable is compared to a set point. The deviation acts on the

output signal according to an optional PID algorithm.

PID OUTPUT CHARACTERIZATION - the PID output signal (MV) follows a curve that is

determined by 16 points, which can be freely configured

BIDIRECTIONAL FLOW FUNCTION - used to measure the flow in the piping in both directions.

LOCAL ADJUSTMENT - not Only for Lower and Upper value, but input/output function,

operation mode, indication, set point, PID parameters (optional) as well.

PASSWORD - three levels for different functions.

OPERATION COUNTER - shows the number of changes in each function.

TOTALIZATION - flow totalization in volume or mass.

USER-UNIT - indication in engineering unit of the property actually measured, e.g., level,

flow or volume.

WRITE-PROTECT - via hardware

Get the best results of the LD301 by carefully reading these instructions.

Smar pressure transmitters are protected by U.S. patents 6,433,791 and 6,621,443.

LD301 – Operation and Maintenance Instruction Manual

NOTE

This manual is compatible with version 6.XX, where 6 notes software version and XX software

release. The indication 6.XX means that this manual is compatible with any release of version 6

software

WARNING

To ensure that our products are safe and without risk to health, the manual must be read carefully

before proceeding and warning labels on packages must be observed. Installation, operation,

maintenance and servicing must only be carried out by suitably trained personnel and in

accordance with the Operation and Maintenance Instruction Manual.

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

MOUNTING...............................................................................................................................................................1.1

ELECTRONIC HOUSING..........................................................................................................................................1.9

WIRING ...................................................................................................................................................................1.10

LOOP CONNECTIONS...........................................................................................................................................1.11

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 - HARDWARE..........................................................................................................2.2

FUNCTIONAL DESCRIPTION - SOFTWARE..........................................................................................................2.3

THE DISPLAY ...........................................................................................................................................................2.6

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

CONFIGURATION FEATURES................................................................................................................................3.5

MANUFACTURING DATA AND IDENTIFICATION..................................................................................................3.5

PRIMARY VARIABLE TRIM - PRESSURE...............................................................................................................3.6

PRIMARY VARIABLE CURRENT TRIM...................................................................................................................3.7

TRANSMITTER ADJUSTMENT TO THE WORKING RANGE.................................................................................3.7

ENGINEERING UNIT SELECTION...........................................................................................................................3.8

TRANSFER FUNCTION FOR FLOW MEASUREMENT ..........................................................................................3.9

TABLE POINTS.......................................................................................................................................................3.11

TOTALIZATION CONFIGURATION........................................................................................................................3.11

PID CONTROLLER CONFIGURATION..................................................................................................................3.12

EQUIPMENT CONFIGURATION............................................................................................................................3.13

EQUIPMENT MAINTENANCE................................................................................................................................3.15

SECTION 4 - PROGRAMMING USING LOCAL ADJUSTMENT................................................................4.1

THE MAGNETIC TOOL.............................................................................................................................................4.1

SIMPLE LOCAL ADJUST..........................................................................................................................................4.2

ZERO AND SPAN RERANGING ..............................................................................................................................4.3

COMPLETE LOCAL ADJUSTMENT.........................................................................................................................4.3

LOCAL PROGRAMMING TREE...............................................................................................................................4.3

OPERATION [OPER] ................................................................................................................................................4.4

TUNING [TUNE]........................................................................................................................................................4.6

CONFIGURATION [CONF].......................................................................................................................................4.8

RANGE (RANGE)......................................................................................................................................................4.9

FUNCTION (FUNCT)...............................................................................................................................................4.12

OPERATION MODE (MODE) .................................................................................................................................4.12

TOTALIZATION [TOTAL]........................................................................................................................................4.13

TOTALIZATION BRANCH (TOTAL)........................................................................................................................4.13

PRESSURE TRIM [TRIM] .......................................................................................................................................4.14

ESCAPE LOCAL ADJUSTMENT [ESC]..................................................................................................................4.15

SECTION 5 - MAINTENANCE.....................................................................................................................5.1

GENERAL..................................................................................................................................................................5.1

DIAGNOSTIC USING CONFIGURATION TOOL......................................................................................................5.1

ERROR MESSAGES.................................................................................................................................................5.1

DIAGNOSTIC VIA TRANSMITTER...........................................................................................................................5.2

DISASSEMBLY PROCEDURE.................................................................................................................................5.4

SENSOR..................................................................................................................................................................................5.4

ELECTRONIC CIRCUIT...........................................................................................................................................................5.4

REASSEMBLY PROCEDURE..................................................................................................................................5.6

LD301 – Operation and Maintenance Instruction Manual

SENSOR..................................................................................................................................................................................5.6

ELECTRONIC CIRCUIT...........................................................................................................................................................5.7

INTERCHANGEABILITY...........................................................................................................................................5.8

RETURNING MATERIALS........................................................................................................................................5.8

SMAR INSULATOR KIT..........................................................................................................................................5.10

SMAR INSULATOR KIT MOUNTING .....................................................................................................................5.10

APPLICATION WITH HALAR..................................................................................................................................5.14

TECHNICAL SPECIFICATION ..............................................................................................................................................5.14

PERFORMANCE SPECIFICATION.......................................................................................................................................5.14

TPE – TOTAL PROBABLE ERROR (SOFTWARE)................................................................................................5.14

ORDERING CODE FOR THE SENSOR.................................................................................................................5.15

HART® SPECIAL UNITS........................................................................................................................................5.20

SECTION 6 - TECHNICAL CHARACTERISTICS .......................................................................................6.1

ORDERING CODE....................................................................................................................................................6.6

OPTIONAL ITEMS.....................................................................................................................................................6.7

OPTIONAL ITEMS.....................................................................................................................................................6.9

OPTIONAL ITEMS...................................................................................................................................................6.12

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

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

OTHERS APPROVALS.............................................................................................................................................A.1

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

MARINE APPROVAL..............................................................................................................................................................A.1

FMEDA REPORT:...................................................................................................................................................................A.1

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

NORTH AMERICAN CERTIFICATIONS.................................................................................................................................A.1

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

Transmitter General View

VII

TRANSMITTER GENERAL VIEW

The LD301 uses a highly proven technique for pressure measuring by capacitance reading. The

block diagram of the LD301 HART® pressure transmitter is shown below.

Isolator

EEPROM with Sensor Data

Temperature Data

Resonant Oscillator

Digital

Reading

Zero/Span Local

Adjustment

- D/A Converter

- HART Modem

- LCD Controller

- Mathematical

Co-processor

- Range

- Special Functions

- PID

- Output Controller

- Communication

- HART

- Advanced Diagnostic

- Firmware Update

Process Unit

Protocol

SignalConditioner

Input/Output

PH PL

Digital

Sensor

Glass Metalized

Surface (4)

Ceramics

Filling Fluid (3)

Isolating

Diaphragm (2)

Sensor

Diaphragm (1)

HT3012

4 - 20mA

In the cell center is the sensor diaphragm (1). This diaphragm flexes in response to the different

pressures applied on the LOW and HIGH sides of the cell (PL and PH). These pressures are directly

applied on the isolator diaphragms (2), whose function is to isolate the sensor process and supply

high resistance against corrosion caused by process fluids. The pressure is transmitted directly to

the sensor diaphragm through the filling fluid (3) and causes its deflection. The sensor diaphragm is

a mobile electrode whose two metal surfaces (4) are stable electrodes. A deflection on the sensor

diaphragm is read by the capacitance variation between both stable and mobile electrodes.

The resonance oscillator reads the capacitance variations between the mobile and the stable boards

and generates a pressure output equivalent to the detected capacitance variation. This pressure

value is informed in compliance with the transmitter communication protocol. As the conversion

process does not involve an A/D converter, any errors or deviations are eliminated during the

process. Temperature compensation is done by a sensor, which combined with a precision sensor,

results in high accuracy and range.

The process variable, as well as the diagnostic monitoring and information, are supplied by the

digital communication protocol. The LD301 is available in the HART communication protocol.

Read carefully these instructions for better use of the LD301.

LD301 – Operation and Maintenance Instruction Manual

VIII

nsta

owc

art

Was the transmitter

configured on the bench

to match the application?

Configure the transmitter

(Section 1 and 3)

Configure the measuring range

to 0% (4mA) and 100%

(20mA) (Section 3)

Configure the Fail-Safe

value (Section 3)

Configure the Damping (Section 3)

Configure the LCD reading

(Section 3)

Apply the pressure

Is the reading correct?

See manual

(Section 5) - Maintenance

Start

Yes

Apply the Zero Trim

Is the impulse line wett leg?

Install the transmitter on the field

following the instructions below.

Install the transmitter preferably

on weather- protected areas.

Install the transmitter (mechanically

and electrically) according to the

application after checking the best

position for the LCD (Section 5)

Check the area classification

and its practices

Power the transmitter properly.

Did you correct the

transmitter reading?

Is the transmitter

reading correct?

Yes

Section 1

1.1

INSTALLATION

General NOTE

The installationcarried out in hazardousareas should followthe recommendations ofthe IEC 60079-14

standard.

The overall accuracyof a flow, level, or pressure measurement depends on severalvariables.Although

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

efficiency.

Among all factors, which may affect transmitteraccuracy,environmental conditions arethe most difficult

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

The LD301 has a built-in temperature sensor to compensate for temperature variations. At the factory,

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

temperatures are recorded in the transmitter memory. At the field, this feature minimizes the

temperature variation effect.

Mounting

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

temperature fluctuation effects.

In warm environments, thetransmitter shouldbe installedto avoid, as muchaspossible, direct exposure

to the sun. Installationclose to linesand vesselssubjected to high temperatures should alsobe avoided.

Use longer sections of impulse piping between tap and transmitter whenever the process fluidis at high

temperatures. Use of sunshades or heat shields to protect the transmitter from external heat sources

should be considered, if necessary.

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.

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

vibrating equipment should be avoided.

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

mounting easier. The mounting positions are shown in Figure 1.1.

Existing standards for the manifolds have also been considered, and standard designs fits perfectly to

the transmitter flanges.

Should the process fluid contain solids in suspension, install valves or rod-out fittings regularly to clean

out the pipes. The pipes should be internally cleaned by using steam or compressed air, or bydraining

the line with the process fluid, before such lines are connected to the transmitter (blow-down).

NOTE

When installing or storing the level transmitter, the diaphragm must be protected toavoidscratching-

denting or perforation of its surface. The process flange of the level transmitters can be rotated 45º.

To do this just loosen the two screws (Figure 1.1) and rotate the flange. Do not take the screws out.

There is a label (Figure 1.1) on the transmitter with these instructions.

LD301 – 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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