SMAR DT301 Leitfaden

INTELLIGENT DENSITY

TRANSMITTER

OPERATION, MAINTENANCE

AND INSTRUCTIONS MANUAL

DT301

VERSION 2

MAY / 16

D T 3 0 1 M E

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Specifications and information are subject to change without notice.

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

smar

Introduction

III

INTRODUCTION

The DT301 Intelligent Concentration/Density Transmitter is a device designed for the continuous online

measurement of liquid concentration/density, directly in industrial process.

The DT301 consists of a capacitive type differential pressure transmitter coupled to a pair of pressure

repeaters immersed in the process. The repeaters are connected to the external capacitive sensor

through capillary tubes. A temperature sensorlocatedbetweenthe twopressure repeatersautomatically

compensates temperature variations in the process

Special techniques in the production and assembly repeaters and temperaturesensor ensure thatsmall

variations in the process temperature are quickly informed to the transmitter, which calculates the fluid

density process accurately through dedicated software.

Depending on the industrial process,density canbe expressed inDensity,Relative Density,Brix degree,

Baumé degree, Plato degree, % of Solids, Concentration, etc.

Designed for process control applications, this 2-wire transmitter generates a 4-20 mA signal

proportional to the concentration/density. Digital communicationfor remote calibrationand monitoring is

also provided (HART Protocol).

The digital technology used in the DT301 allows the choice of several types of transfer functions, an

easy interface between the field and the control room and some characteristics that reduce the

installation, operation and the maintenance costs considerably.

ATTENTION

Get the best results of the DT301 by carefully reading these instructions.

This product is protected by US patent numbers: 6,234,019; D439,855 and 5,827,963.

DT301 – Operation, Maintenance and Instructions Manual

NOTE

This manual is compatible with version 2.XX, where 2 denote 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

RECOMMENDATIONS FOR USE OF DT301 ...........................................................................................................1.1

DT301 CONCENTRATION / DENSITY TRANSMITTERS MODELS........................................................................1.1

ASSEMBLY ................................................................................................................................................................1.2

A - INDUSTRIAL MODEL TOP MOUNTING - BETWEEN CENTRE OF THE SENSORS 250 MM..........................1.3

B –INDUSTRIAL MODEL SIDE MOUNTING............................................................................................................1.4

C –SANITARY MODEL TOP MOUNTING - BETWEEN CENTRE OF THE SENSORS 500 MM............................1.5

D –SANITARY MODEL SIDE MOUNTING...............................................................................................................1.6

E –INDUSTRIAL MODEL TOP MOUNTING.............................................................................................................1.7

F –SANITARY MODEL TOP MOUNTING - BETWEEN CENTRE OF THE SENSORS 800 MM ............................1.8

A –TYPICAL INSTALLATION FOR LOW FLOW TANK (INDUSTRIAL MODEL) ....................................................1.9

B –TYPICAL INSTALLATION FOR LOW FLOW TANK (SANITARY MODEL)......................................................1.10

C –TYPICAL INSTALLATION FOR HIGH FLOW TANK (INDUSTRIAL MODEL)..................................................1.11

D –TYPICAL INSTALLATION IN OVERFLOW TANKS..........................................................................................1.12

E –TYPICAL INSTALLATION IN TANK (INDUSTRIAL MODEL)............................................................................1.13

F –TYPICAL INSTALLATION IN TANK (SANITARY MODEL) ...............................................................................1.14

G - TYPICAL INSTALLATION IN TANK WITH DIAPHRAGM PROTECTION (INDUSTRIAL MODEL)..................1.15

H - TYPICAL INSTALLATION FOR LOW FLOW TANK (INDUSTRIAL MODEL)...................................................1.16

I - TYPICAL INSTALLATION IN TANK FOR INTERFACE LEVEL (INDUSTRIAL MODEL) ...................................1.17

J - TYPICAL INSTALLATION IN TANK FOR STAND PIPE INTERFACE LEVEL (INDUSTRIAL MODEL)............1.18

ELECTRONIC HOUSING ROTATION.....................................................................................................................1.19

ELECTRIC WIRING.................................................................................................................................................1.19

MULTIDROP OPERATION......................................................................................................................................1.21

INSTALLATION IN HAZARDOUS AREAS...............................................................................................................1.22

EXPLOSION/FLAME PROOF..................................................................................................................................1.22

INTRINSICALLY SAFE.............................................................................................................................................1.22

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

FUNCTIONAL DESCRIPTION –SENSOR................................................................................................................2.1

FUNCTIONAL DESCRIPTION - HARDWARE ..........................................................................................................2.2

PROBE.......................................................................................................................................................................2.2

SENSOR BOARD.......................................................................................................................................................2.2

MAIN BOARD.............................................................................................................................................................2.2

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

DISPLAY.....................................................................................................................................................................2.4

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

CONFIGURATION RESOURCES..............................................................................................................................3.2

MANUFACTURING DATA AND IDENTIFICATION...................................................................................................3.3

TRIM OF THE PRIMARY VARIABLE - DENSITY......................................................................................................3.3

CONCENTRATION TRIM ..........................................................................................................................................3.4

SELF CALIBRATION TRIM........................................................................................................................................3.4

DT301 SELF CALIBRATION ..................................................................................................................................3.4

TEMPERATURE TRIM...............................................................................................................................................3.5

PRIMARY VARIABLE CURRENT TRIM ....................................................................................................................3.5

ADJUSTMENT OF THE TRANSMITTER TO WORK RANGE..................................................................................3.5

ENGINEERING UNIT SELECTION............................................................................................................................3.6

EQUIPMENT CONFIGURATION...............................................................................................................................3.7

EQUIPMENT MAINTENANCE...................................................................................................................................3.8

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

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

DIAGNOSTIC WITH CONFIGURATOR ....................................................................................................................4.1

ERROR MESSAGES..................................................................................................................................................4.1

DT301 –Operation, Maintenance and Instructions Manual

DIAGNOSTIC WITHOUT CONFIGURATOR.............................................................................................................4.2

PROCEDURE TO CHANGE THE DT301 MAIN BOARD..........................................................................................4.3

DISASSEMBLY PROCEDURE ..................................................................................................................................4.3

PROBE SET (16A, 16B, 19A OR 19B).......................................................................................................................4.4

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

REASSEMBLY PROCEDURE ...................................................................................................................................4.4

PROBE SET (16A, 16B, 19A OR 19B).......................................................................................................................4.5

DISPLAY.....................................................................................................................................................................4.5

INTERCHANGEABILITY............................................................................................................................................4.5

RETURNING MATERIALS.........................................................................................................................................4.6

SECTION 5 - TECHNICAL CHARACTERISTICS......................................................................................... 5.1

FILLING FLUIDS........................................................................................................................................................5.1

FUNCTIONAL SPECIFICATIONS..............................................................................................................................5.1

PERFORMANCE SPECIFICATIONS.........................................................................................................................5.2

PHYSICAL SPECIFICATIONS...................................................................................................................................5.2

SANITARY CONCENTRATION / DENSITY TRANSMITTER...................................................................................................5.3

INDUSTRIAL CONCENTRATION / DENSITY TRANSMITTER ...............................................................................................5.4

APPENDIX A –CERTIFICATIONS INFORMATION.....................................................................................A.1

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

OTHER APPROVALS................................................................................................................................................A.1

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

HAZARDOUS LOCATIONS GENERAL INFORMATION...........................................................................................A.1

HAZARDOUS LOCATIONS CERTIFICATIONS........................................................................................................A.2

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

EUROPEAN CERTIFICATIONS .............................................................................................................................................A.3

SOUTH AMERICAN CERTIFICATIONS.................................................................................................................................A.3

IDENTIFICATION PLATE AND CONTROL DRAWING.............................................................................................A.4

IDENTIFICATION PLATE........................................................................................................................................................A.4

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

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

Installation Flowchart

VII

Installation Flowchart

START

Is the engineering

unit according

to the process?

TTENTION

Get the best results of the

by carefully reading all instructions manual.

DT301

Install in the field

(Installation examples in Section 1).

Verify area classification and

respective practices.

What is the

measurement

type?

Is the

measurement

oscillating?

Install the

diaphragm

protection.

Verify the most appropriate

position for local indicator.

(Section 4)

Power up the transmitter.

Is the PV

measurement

correct?

Configure the engineering unit.

(Section 3)

Configure the measurement

range to 0% and 100%.

Regulate

the flow.

END

Proceed with lower

concentration trim.

YES

IN LINE IN TANK

YES

* More information in Section 3 from DT301 Operation, Maintenance and Instructions Manual.

** Tip: The Brix of water is 0 (zero)/ or H O = 998.2@20 C.

densit

Is the

range correct?

YES

Verify if the cover is correctly closed.

(Section 1)

YES

Is the

measurement

oscillating?

Verify Maintenance

procedures (Section 4)

DT301 – Operation, Maintenance and Instructions Manual

VIII

Section 1

1.1

INSTALLATION

General

The overall accuracy of density 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 capacitive sensor of the DT301, that is located external to the process, is protected of external

sources of heat by an enclosure with internal thermal insulation.Nevertheless,thetransmittershouldbe

installed in way to avoid to the maximum the direct exhibition to the ray’s run.

Humidity is fatal to 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

tighten them manually until you feel the o-rings being compressed. See how to close suitablyon item –

electrical connections. Do not use tools to close the covers. Removal of the electronics cover in the

field should be reduced to the minimum necessary, since each time it is removed; the circuits are

exposed to the humidity.

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

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

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, installationclose to pumps, turbinesor other

vibrating equipment should be avoided. If inevitable, install the transmitter at a solid base and use

flexible tube which does not transmit the vibration.

Recommendations for use of DT301

The process fluid should always cover the two diaphragm repeaters.

The maximum process fluid velocity over the two repeater diaphragms must be 0.4m/sec, whatmeans

a flow of 26 m3/h in a piping of 6”. This information is according to fluids which viscosity is close to

that water. For fluids where the viscosity is very different to that water viscosity should be analyzed.

This limitation is due to the losing of load between the diaphragms.

The temperature range of the process fluid must be between -20°C and 150°C.

For applications in corrosive fluids, compatible materials should be chosen. The materials of the parts

that are not in direct contact with the process, but can be subject to the corrosive atmosphere or drops

of the process, should also be observed.

A possible leak of the fill fluid (less than 5 ml), due to a hole in the diaphragm can contaminate the

process. In case that is not allowed, choose a fill fluid compatible with the process.

DT301 Concentration / Density Transmitters Models

DT301I - Industrial model, for general purpose.

DT301S - Sanitary model for food, pharmaceutical industry and other applications where sanitary

connections are required.

The industrial model uses connection flanges in compliance with ANSI B16.5 or DIN 2526 Standards.

The sanitary model uses Tri-Clamp connection to allow a quickandeasyconnectionanddisconnection

from the process. Wetted surface finish is 32RAas standard. Thesemodelsmeet3Arecommendations

so that the probe surface is free of crevices where food or bacteria can be collected. 3A is the most

widely accepted sanitary standard in the food, drug and beverage industry.

DT301 –Operation, Maintenance and Instructions Manual

1.2

Assembly

Both models (DT301I and DT301S) have two mounting types: top mounting (straight type) and side

mounting (curved type).

The Figures 1.1 show the dimensions of the DT301 straight and curved type for industrial and sanitary

models. The dimensions are in millimeters (inches).

The installation can be done in open or pressurized tanks or through a sampling device, externalto the

process.

The Figures 1.2 show some mounting examples. The dimensions are in millimeters.

Choose a place for installation that facilitates the access for the measuring point and that be free from

mechanical shocks.

Try to use a valve in the connection to the process before the DT301. This simplifiesthecalibrationand

maintenance of the equipment.

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