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TT300Series

Temperature Transmitter


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Functional Description

 

The Smar TT300 Series is a transmitter mainly intended for measurement of temperature using RTDs or thermocouples. However, it can also accept other sensors with resistance or mV output such as: pyrometers, load cells, resistance position indicators, etc. The TT300 Series accepts up to two sensors and may operate in one of the modes:

  • Single channel with single sensor measurement;
  • Dual channel with dual sensor measurement;
  • Single channel with dual sensor differential measurement;
  • Single channel with dual sensor back-up measurement.


The Smar TT300 Series is a powerful and extremely versatile smart temperature transmitter. The digital technology used in the TT300 Series enables a single device to accept several types of sensors, wide ranges, single or multiple-ended measurement and an easy interface between the field and the control room. It also includes several interesting features that reduce considerably the installation, operation and maintenance costs. The transmitter accepts two channels, i.e., two measurements. This reduces the cost per channel.

The TT300 Series is suitable for direct field installation, being weather proof and explosion proof, as well as intrinsically safe, for use in hazardous areas.

 
Features
 
  • 0.02% Accuracy;
  • Built-in thermocouples and RTDs linearization;
  • True non-interactive zero and span;
  • Local zero and span adjustment;
  • Remote configuration via Hand-Held Terminal or via PC;
  • Alphanumerical LCD indication;
  • Small and lightweight;
  • Explosion proof and weather proof housing approved (IP67);
  • Intrinsically safe certification;
  • Signal simulation for loop tests;
  • Signal isolation;
  • Configurable user unit;
  • Configurable local adjustment;
  • EMC (Electromagnetic Compatibility) according to IEC 61000-6-2: 1999,
  • IEC 61000-6-4: 1997 and IEC 61326: 2002;
  • Write protection function;
  • Three technology options: HART®, FOUNDATION™ Fieldbus, PROFIBUS PA.



HART® - 4 to 20 mA - TT301 Models 

  • Excellent long term stability due to auto-zero at the input circuit;
  • Two wire, 4-20 mA output plus direct digital communication;
  • Special 16-point sensor characterization;
  • Update output current in 0.5 s with 1.5 ?A/bit resolution;
  • Improved performance due to dedicated math co-processor;
  • Multi-drop operation mode;
  • PID control function;
  • Set Point Generator function;
  • Supports DTM, DD and EDDL.


FoundationTM Fieldbus - TT302 Models 
 
  • Self-diagnostics;
  • Dual channel;
  • Universal input accepts several thermocouples, RTDs, mV and Ohm;
  • Sensor backup option;
  • 12 mA consumption;
  • 19 different types of function blocks for control strategies and advanced diagnostics;
  • Up to 20 function blocks;
  • Execution of up to 29 external links;
  • Dynamic block instantiation improves interchangeability;
  • Fieldbus FoundationTM registered and ITK approved;
  • LAS Capability;
  • MVC (Multivariable Container) enabled.


Profibus PA - TT303 Models Self-diagnostics;
 
  • Dual channel;
  • Universal input accepts several thermocouples, RTDs, mV and Ohm;
  • Sensor backup option;
  • 12mA consumption;
  • 02 Analog Input Function Blocks;
  • Integrated to Smar Profibus View and Simatic PDM;
  • Supports DTM and EDDL;
  • Profile 3.0 improves interchangeability.


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