SMAR TT302 Manuel

web: www.smar.com e-mail: smarin[email protected]

Specifications and information are subject to change without notice.

May/99

BRAZIL

Smar Equipamentos Ind. Ltda.

Av. Dr. Antonio Furlan Jr., 1028

Sertãozinho SP 14160-000

Tel.: +55 16 645-6455

Fax: +55 16 645-6450

CHINA

Smar China Corp.

3 Baishiqiao Road, Suite 30233

Beijing 100873, P.R.C.

Tel.: +86 10 6849-8643

Fax: +86 10 6849-9549

FRANCE

Smar France S. A. R. L.

1, bld de l'Oise

Immeuble Les Maradas

95031 Cergy – Pontoise

Tel.: +33 1 30 38-3888

Fax: +33 1 30 38-4110

GERMANY

Smar GmbH

Robert-Koch-Strasse 35

D 55129 Mainz

Tel.: +49 6131 582037

Fax: +49 6131 582249

MEXICO

Smar Mexico

11, Poniente, No. 1314-1 PB

Col. Centro C. P. 72000

Ciudad de Puebla, Puebla

Tel.: +52 22 46-4386

Fax: +52 22 46-4386

NORWAY

Smar Norge A/S

Sandviksveien, 18

N-5035 Sandviken Bergen

Tel.: +47 55 13-3885

Fax: +47 55 13-3886

SINGAPORE

Smar Singapore Pte. Ltd.

315 Outram Road

#04-05, Tan Boon Liat Building

Singapore 169074

Tel.: +65 324-0182

Fax: +65 324-0183

USA

Smar International Corporation

Northwest Point Service Center

7240 Brittmoore, Suite 118

Houston, TX 77041

Tel.: +1 713 849-2021

Fax: +1 713 849-2022

Smar Laboratories Corporation

10960 Millridge North, Suite 107

Houston, TX 77070

Tel.: +1 281 807-1501

Fax: +1 281 807-1506

Smar Research Corporation

4250 Veterans Memorial Hwy.

Unit 156

Holbrook , NY 11741

Tel.: +1 516 737-3111

Fax: +1 516 737-3892

Index

III

Table of Contents

TABLE OF CONTENTS.................................................................................III

INDEX OF FIGURES .................................................................................... IV

INDEX OF TABLES ...................................................................................... IV

INTRODUCTION ........................................................................................... V

INSTALLATION ...........................................................................................1.1

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

MOUNTING ....................................................................................................................................1.1

NETWORK WIRING .......................................................................................................................1.2

BUS TOPOLOGY AND NETWORK CONFIGURATION ................................................................ 1.4

OPERATION................................................................................................2.1

FUNCTIONAL DESCRIPTION – HARDWARE...............................................................................2.1

TEMPERATURE SENSOR.............................................................................................................2.3

CONFIGURATION.......................................................................................3.1

TRANDUCER BLOCK ....................................................................................................................3.1

HOW CONFIGURE A TRANSDUCER BLOCK ..............................................................................3.1

SENSOR TRANSDUCER NUMBER ..............................................................................................3.1

SENSOR WIRING ..........................................................................................................................3.2

JUMPER ONFIGURATION.............................................................................................................3.2

SENSOR CONFIGURATION .........................................................................................................3.3

HOW TO CONNECT TWO SENSORS TO TT302 .........................................................................3.5

COMPENSATION OF LEAD RESISTANCE FOR RTD or Ohm.....................................................3.6

COMPENSATION OF LEAD RESISTANCE FOR RTD or Ohm Double Sensors ..........................3.6

CALIBRATION IN TT302 BY THE USER .......................................................................................3.6

CHANGING UNITS IN TEMPERATURE SENSORS......................................................................3.6

TRANSDUCER DISPLAY – CONFIGURATION.............................................................................3.7

DISPLAY TRANSDUCER BLOCK..................................................................................................3.7

DEFINITION OF PARAMETERS AND VALUES ............................................................................3.8

PROGRAMMING USING LOCAL ADJUSTMENT........................................................................3.11

LOCAL PROGRAMMING TREE...................................................................................................3.11

MAINTENCE PROCEDURES......................................................................4.1

TOUBLESANTING..........................................................................................................................4.1

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

REASSEMBLY PROCEDURE........................................................................................................4.2

INTERCHANGEABILITY ................................................................................................................4.3

RETURNING MATERIALS .............................................................................................................4.3

TECHNICAL CHARACTERISTICS..............................................................5.1

FUNCIONAL SPECIFICATIONS ....................................................................................................5.1

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

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

TT302 – Fieldbus Temperature Transmitter

Index of Figures

FIGURE 1.1 – COVER LOCKING ........................................................................................................1.2

FIGURE 1.2 – GROUND TERMINALS.................................................................................................1.2

FIGURE 1.3 – DIMENSIONAL DRAWING AND MOUNTING POSITIONS..........................................1.3

FIGURE 1.4 – BUS TOPOLOGY..........................................................................................................1.4

FIGURE 1.5 – TREE TOPOLOGY .......................................................................................................1.5

FIGURE 2.1 – TT302 BLOCK DIAGRAM.............................................................................................2.1

FIGURE 2.2 – LCD INDICATOR ..........................................................................................................2.2

FIGURE 2.3 – TWO-WIRE CONNECTION ..........................................................................................2.4

FIGURE 2.4 – TREE – WIRE CONNECTION ...................................................................................... 2.4

FIGURE 2.5 – FOUR WIRE CONNECTION ........................................................................................2.5

FIGURE 2.6 – DIFFERENTIAL OR DUAL CONNECTION...................................................................2.5

FIGURE 3.1 – SENSOR WIRING ........................................................................................................3.2

FIGURE 3.2 – TEMPERATURE CALIBRATION – TT302....................................................................3.3

FIGURE 3.3 – TEMPERATURE CALIBRATION – TT302....................................................................3.3

FIGURE 3.4 – TEMPERATURE CALIBRATION – TT302....................................................................3.4

FIGURE 3.5 – TEMPERATURE CALIBRATION – TT302....................................................................3.5

FIGURE 3.6 – CREATING TRANSDUCER AND FUNCTION BLOCKS ..............................................3.7

FIGURE 3.7 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ................................3.9

FIGURE 3.8 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ................................3.9

FIGURE 3.9 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ..............................3.10

FIGURE 3.10 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ............................3.10

FIGURE 3.11 – PARAMETERS FOR LOCAL ADJUSTMENT CONFIGURATION ............................3.11

FIGURE 3.12 – STEP 1 – TT302 .......................................................................................................3.11

FIGURE 3.13 – STEP 2 – TT302 .......................................................................................................3.12

FIGURE 3.14 – STEP 3 – TT302 .......................................................................................................3.12

FIGURE 3.15 – STEP 4 – TT302 .......................................................................................................3.12

FIGURE 3.16 – STEP 5 – TT302 .......................................................................................................3.13

FIGURE 3.17 – STEP 6 – TT302 .......................................................................................................3.13

FIGURE 3.18 – STEP 7 – TT302 .......................................................................................................3.13

FIGURE 4.1 – FOUR POSSIBLE POSITION OF THE DISPLAY.........................................................4.2

FIGURE 4.1 – EXPLODED VIEW ........................................................................................................4.3

Index of Tables

TABLE 3.1 – SENSOR TYPE TABLE ..................................................................................................3.4

TABLE 3.2 – TYPE OF CONNECTION TABLE ...................................................................................3.5

TABLE 3.3 – UNIT TABLE ...................................................................................................................3.6

TABLE 4.1 – MESSAGES OF ERRORS AND POTENTIAL CAUSE ...................................................4.1

Introduction

The TT302 is from the first generation of FIELDBUS devices. It is a transmitter mainly

intended for measurement of temperature using RTDs or thermocouples, but can also

accept other sensors with resistance or mV output such as: pyrometers, load cells,

resistance position indicators, etc. The digital technology used in the TT302 enables a

single model to accept several types of sensors, an easy interface between the field and

the control room and several others features that considerably reduces the installation,

operation and maintenance costs.

FIELDBUS is not only a replacement for 4-20 mA or intelligent/smart transmitter

protocols. It contains much more. FIELDBUS is a complete system enabling distribution

of the control function to equipment in the field.

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

transmitter protocols: higher accuracy, multivariable access, remote configuration and

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

protocols were not intended to transfer control data, but maintain information. Therefore

they were slow and not efficient enough to be used.

The main requirements for Fieldbus were to overcome these problems. Closed loop

control with performance like a 4-20 mA system requires higher speed. Since higher

speed means higher power consumption, this clashes with the need for intrinsic safety.

Therefore a moderately high communication speed was selected, and the system was

designed to have minimum communication overhead. Using scheduling, the system

controls the variable sampling, the algorithm execution and the communication to

optimize the usage of the network, thus achieving high closed loop performance.

Using Fieldbus 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 (users of SMAR CD600 should be familiar with this, since it was

implemented several years ago). The user may now easily build and overview complex

control strategies. Another advantage is adding flexibility, the control strategy may be

edited without having to rewire or change any hardware.

Now, thanks to Fieldbus, the transmitter accepts two channels, i.e., two measurements.

This reduces the cost per channel. Other function blocks are also available. They allow

flexibility in control strategy implementation.

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

when developing the entire 302 line of Fieldbus devices. They have the common features

of being able to act as a master on the network.

Get the best result of the TT302 by carefully reading these instructions.

TT302 – Fieldbus Temperature Transmitter

WARNING

This Manual is compatible with version 3.XX, where 3 denote

software version and XX software release. The indication 3.XX

means that this manual is compatible with any release of

software version 3.

Section 1

1-1

Installation

General

The overall accuracy of temperature and other measurements depends on several

variables. Although the transmitter has an outstanding performance, proper installation is

essential in order 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.

Locating the transmitter in areas protected from extreme environmental changes can

minimize temperature fluctuation effects.

In warm environments, the transmitter should be installed in such a way as to avoid, as

much as possible, direct exposure to the sun. Installation close to lines and vessels

subjected to high temperatures should also be avoided. For temperature measurements,

sensors with cooling-neck can be used or the sensor can be mounted separately from the

transmitter housing.

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 you feel the O-rings being

compressed. 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 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, as painting cannot protect these parts. Code-approved sealing

methods should be employed on conduit entering the transmitter.

Connecting the sensor as close to the transmitter as possible and using proper wires

(See Section 2 - Operation), can decrease measurement error.

Mounting

The transmitter may be mounted in two basic ways:

Separated from the sensor, using optional mounting brackets.

Mounted on the sensor assembly.

It can be mounted in several different positions using the bracket, as shown in Figure 1.3

- Dimensional Drawing and Mounting Positions. As shown in Figure 1.3 - Dimensional

Drawing and Mounting Positions one of the conduit inlets for electrical connection is used

to mount the sensor integral to the temperature transmitter.

For better visibility, the digital display may be rotated in steps of 90°. (See Figure 4.1 -

Four Possible Positions of the Display).

TT302 – Fieldbus Temperature Transmitter

1-2

Network Wiring

Access the terminal block by removing the Electrical Connection Cover. This cover can

be locked closed by the cover locking screw (See Figure 1.1 - Cover Locking).To release

the cover, rotate the locking screw clockwise.

Figure 1.1 - Cover Locking

Cable access to wiring connections are obtained by one of the two conduit outlets.

Conduit threads should be sealed by means of code-approved sealing methods. The

unused outlet connection should be plugged accordingly.

The wiring block has screws on which fork or ring type terminals can be fastened. (See

Figure 1.2 - Ground Terminals).

Figure 1.2 - Ground Terminals

For convenience, there are three ground terminals: one inside the cover and two

externally, located close to the conduit entries.

WARNING

Do not connect the Fieldbus network wires to the sensor

terminals. (Terminals 1, 2, 3 and 4).

TT2EM102.CDR

TT2EM101.CDR

Installation

1-3

Figure 1.3 - Dimensional Drawing and Mounting Positions

The TT302 uses the 31.25-kbit/s, voltage mode option for the physical signaling. All other

devices on the same bus must use the same signaling. All devices are connected in

parallel along the same pair of wires.

Various types of Fieldbus devices may be connected on the same bus. The TT302 is

powered via the bus. The limit for such devices is 16 for one bus for non-intrinsically safe

requirement.

In hazardous areas, the number of devices may be limited to 6 devices by intrinsically

safe restrictions.

The TT302 is protected against reverse polarity, and can withstand ±35 VDC without

damage.

Use of twisted pair cables is recommended. It is also recommended to ground shield of

shielded cables at one end only. The non-grounded end must be carefully isolated.

NOTE

Please refer to the General Installation, Operation and Maintenance

Manual for more details.

TT2EM103.CDR

TT302 – Fieldbus Temperature Transmitter

1-4

Bus Topology and Network Configuration

WARNING

HAZARDOUS AREAS

In hazardous zones with explosion proof requirements the

covers must be tightened with at least 7 turns. In order to avoid

moisture or corrosive gases, hand tighten the covers until the O-

rings are compressed. Lock the covers closed with the locking

screw.

In hazardous zones with intrinsically safe or non incendive

requirements, the circuit entity parameters and applicable

installation procedures must be observed.

Cable access to wiring connections is obtained by the two

conduit outlets. Conduit threads should be sealed by means of

code-approved sealing methods. The unused outlet connection

should be plugged and sealed accordingly.

Should other certifications be necessary, refer to the certification

or specific standard for installation limitations.

The connection of couplers should be kept at less than 15 per 250 m.

Figure 1.4 - Bus Topology

TT2EM104.CDR

Autres manuels pour TT302

Table des matières

Manuels Émetteur populaires d'autres marques

NIVELCO

NIVELCO EasyTREK SCA-300 Series Manuel du propriétaire

Honeywell

Honeywell 5816WMBR Manuel utilisateur

Kamstrup

Kamstrup READy MTU Mode d'emploi

Omega

Omega ZW Series Manuel utilisateur

ABB

ABB Field 264H Mode d’emploi

Alinco

Alinco DJ-V17T Manuel utilisateur

Dejero

Dejero EnGo 3x Manuel utilisateur

Rosemount

Rosemount 4600 Manuel utilisateur

Speaka Professional

Speaka Professional 2342740 Manuel utilisateur

trubomat

trubomat GAB 1000 Manuel utilisateur

Teledyne Analytical Instruments

Teledyne Analytical Instruments LXT-380 Manuel utilisateur

Rondish

Rondish UT-11 Manuel utilisateur

MG 10JRE Manuel utilisateur

Burkert

Burkert 8177 Manuel utilisateur

Firetide

Firetide HotPort 3203 Manuel

Tele Radio

Tele Radio T9-02 Manuel utilisateur

Rotronic

Rotronic HygroFlex HF3 Series Manuel utilisateur

Jamara

Jamara FCX6 Pro Tel Manuel utilisateur