Product Overview

The ultra-flexible SITRANS TH200 transmitter is a 2-wire device for 4 to 20 mA output, designed for mounting in the connection head of temperature sensors. It features a universal input, compatible with virtually any type of temperature sensor, and is configurable via PC.

Benefits

• Compact design.
• Flexible mounting and centre hole allow selection of preferred installation type.
• Galvanic isolation.
• Test sockets for multimeters.
• Diagnostics LED (green/red).
• Sensor monitoring for open circuits and short-circuits.
• Self-monitoring capabilities.
• Configuration status stored in EEPROM.
• SIL2 (with order note C20), SIL2/3 (with C23) safety integrity level options.
• Expanded diagnostic functions, such as slave pointer and operating hours counter.
• Special characteristic options.
• Electromagnetic compatibility to EN 61326 and NE21 standards.

Application

SITRANS TH200 transmitters are suitable for use across all industrial sectors. Their compact size allows installation in connection heads of type B or larger. The universal input module can connect the following sensors/signal sources:

• Resistance thermometers (2, 3, 4-wire connection).
• Thermocouples.
• Resistance-based sensors.
• DC voltage sources.

The output signal is a direct current from 4 to 20 mA, linearised according to the sensor characteristic. Transmitters with "intrinsically safe" type of protection can be installed within potentially explosive atmospheres, meeting the directive 2014/34/EU (ATEX) as well as FM and CSA requirements.

Function

The SITRANS TH200 is configured using a PC. A USB or RS 232 modem is connected to the output terminals for this purpose, and the SIPROM T software tool is used to edit the configuration data. Once configured, the data is permanently stored in the non-volatile memory (EEPROM).

Upon correct connection of sensors and power supply, the transmitter outputs a temperature-linear signal, and the diagnostics LED shows a steady green light. In the event of a sensor break, the LED flashes red, while an internal device fault is indicated by a steady red light.

The test sockets allow for the connection of an ammeter at any time for monitoring and plausibility checks, enabling the reading of the output current without interruption or opening the current loop.