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Overview

"HART" to beat - the universal SITRANS TH300 transmitter

• Two-wire devices for 4 to 20 mA, HART
• Mounting in the connection head of the temperature sensor
• Universal input for virtually any type of temperature sensor
• Configurable over HART

Benefits

• Compact design
• Flexible mounting and center hole allow you to select your preferred type of installation
• Electrically isolated
• Test sockets for multimeters
• Diagnostics LED (green/red)
• Sensor monitoring open circuits and short-circuits
• Self-monitoring
• Configuration status stored in EEPROM
• SIL2 (with Order code C20), SIL2/3 (with C23)
• Expanded diagnostic functions, such as slave pointer, operating hours counter, etc.
• Special characteristic
• Electromagnetic compatibility to EN 61326 and NE21

Application

SITRANS TH300 transmitters can be used in all industrial sectors. Due to their compact size they can be installed in the connection head type B (DIN 43729) or larger. The following sensors/signal sources can be connected over their universal input module:

• Resistance thermometers (2, 3 or 4-wire system)
• Thermocouples
• Resistance-based sensors and DC voltage sources

The output signal is a direct current from 4 to 20 mA in accordance with the sensor characteristic, superimposed by the digital HART signal.

Transmitters of the "intrinsically safe" type of protection can be installed within potentially explosive atmospheres. The devices comply with the Directive 2014/34/EU (ATEX), as well as FM and CSA regulations.

Function

The SITRANS TH300 is configured over HART. This can be done using a handheld communicator or even more conveniently with a HART modem and the SIMATIC PDM parameterization software. The configuration data are then permanently stored in the non-volatile memory (EEPROM).

Once the sensors and power supply have been correctly connected, the transmitter outputs a temperature-linear output signal and the diagnostics LED displays a green light. In the case of a sensor short-circuit, the LED flashes red, an internal device fault is indicated by a steady red light.

The test socket can be used to connect an ammeter at any time for monitoring purposes and plausibility checks. The output current can be read without any interruption, or even without opening the current loop.

Overview

"HART" to beat - the universal SITRANS TR300 transmitter

• Two-wire devices for 4 to 20 mA, HART
• Device for rail mounting
• Universal input for virtually any type of temperature sensor
• Configurable over HART

Benefits

• Compact design
• Electrically isolated
• Test sockets for multimeters
• Diagnostics LED (green/red)
• Sensor monitoring open circuits and short-circuits
• Self-monitoring
• Configuration status stored in EEPROM
• Expanded diagnostic functions, such as slave pointer, operating hours counter, etc.
• Special characteristic
• Electromagnetic compatibility to EN 61326 and NE21
• SIL2 (with Order code C20), SIL2/3 (with C23)

Application

SITRANS TR300 transmitters can be used in all industrial sectors. Their compact design enables simple mounting on standard DIN rails on-site in protective boxes or in control cabinets.
The following sensors/signal sources can be connected over their universal input module:

• Resistance thermometers (2, 3 or 4-wire system)
• Thermocouples
• Resistance-based sensors and DC voltage sources

The output signal is a direct current from 4 to 20 mA in accordance with the sensor characteristic, superimposed by the digital HART signal.

Transmitters of the "intrinsically safe" type of protection can be installed within potentially explosive atmospheres. The devices comply with the Directive 2014/34/EU (ATEX).

Function

The SITRANS TR300 is configured over HART. This can be done using a handheld communicator or even more conveniently with a HART modem and the SIMATIC PDM parameterization software. The configuration data are then permanently stored in the non-volatile memory (EEPROM).

Once the sensors and power supply have been correctly connected, the transmitter outputs a temperature-linear output signal and the diagnostics LED displays a green light. In the case of a sensor short-circuit, the LED flashes red, an internal device fault is indicated by a steady red light.

The test socket can be used to connect an ammeter at any time for monitoring purposes and plausibility checks. The output current can be read without any interruption, or even without opening the current loop.

Overview

Our field devices for heavy industrial use

• HART, Universal
• 4 to 20 mA, universal
• Field indicator for 4 to 20 mA signals

The temperature transmitter SITRANS TF works where others feel uncomfortable.

Benefits

• Universal use
  • - as transmitter for resistance thermometer, thermocouple element, Ω or mV signal
  • - as field indicator for any 4 to 20 mA signals
• Local sensing of measured values over digital display
• Rugged two-chamber enclosure in die-cast aluminium or stainless steel
• Degree of protection IP66/67/68
• Test terminals for direct read-out of the output signal without breaking the current loop
• Can be mounted elsewhere if the measuring point
  • - is hard to access,
  • - is subject to high temperatures,
  • - is subject to vibrations from the system,
  • - or if you want to avoid long neck tubes and/or protective tubes.
• Can be mounted directly on American-design sensors
• Wide range of approvals for use in potentially explosive atmospheres. "Intrinsically safe, non-sparking and flameproof" type of protections, for Europe and USA.
• SIL2 (with Order code C20), SIL2/3 (with C23)

Application

SITRANS TF can be used everywhere where temperatures need to be measured under particularly adverse conditions, or where a convenient local display is ideal. For that reasons users from all industries have opted for this field device. The rugged enclosure protects the electronics. The stainless steel model is almost completely resistant to sea water and other aggressive elements. The inner workings offer high measuring accuracy, universal input and a wide range of diagnostic options.

Function

Configuration

The communication capability over the HART protocol V 5.9 of the SITRANS TF with an integrated SITRANS TH300 permits parameterization using a PC or HART communicator (hand-held communicator). The SIMATIC PDM makes it easy.

Parameterization is carried out using a PC for SITRANS TF with the integrated and programmable SITRANS TK. Available for this purpose are a special modem and the software tool SIPROM T.

Mode of operation

Mode of operation of SITRANS TF as temperature transmitter

The sensor signal, whether resistance thermometer, thermocouple element or Ω or mV signal, is amplified and linearized. Sensor and output side are electrically isolated. An internal cold junction is integrated for measurements with thermocouple elements.
The device outputs a temperature-linear direct current of 4 to 20 mA. As well as the analog transmission of measured values from 4 to 20 mA, the HART version also supports digital communication for online diagnostics, measured value transmission and configuration.
SITRANS TF automatically detects when a sensor should be interrupted or is indicating a short-circuit. The practical test terminals allow direct measurement of 4 to 20 mA signals over an ammeter without interrupting the output current loop.

Mode of operation of SITRANS TF as field indicator

Any 4 to 20 mA signal can be applied to the generous terminal block. As well as a range of predefined measurement units, the adjustable indicator also supports the input of customized units.This means that any 4 to 20 mA signal can be represented as any type of unit, e.g. pressure, flow rate, filling level or temperature.