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Resistance Thermometers (RTDs)
Sensors with connection head


  

TOPSW / APTOPSW, Resistance thermometer (RTD) with exchangeable measuring insert
 

Applications

  • * Measuring range: -50 .. +600°C
  • * Particularly suitable for steam and gas applications with high process pressures and temperatures
  • * Universal range of application

Features

  • *Spring-loaded measuring insert provides ideal contact with protective tube
  • *High flexibility due to modular assembly with standard terminal heads and customized immersion length
  • *High compatibility with a design according to DIN 43772
  • *Temperature transmitter can be installed inside connection head of sensor
  • *Connection head with local LCD or LED display as an option (see models TWR01H, DANWdie-LED)

Description

The sensor consists of an exchangeable measuring insert, solid machined thermowell with neck and aluminum connection head where mounting a temperature transmitter with 4-20 mA/HART® or Profibus®PA output signal is possible.

The measuring insert represents the replaceable element of the complete sensor which reduces time and costs of maintenance of the measuring apparatus installed in the object. Spring fixation of the measuring insert provides perfect pressure to the bottom of the protecting tube, reduces time of reaction to changes of temperature and increases accuracy of measurement as well as reduces natural vibration thus mechanical and electrical defects can be avoided.

Insertion length, design of thermowell, connection head as well as type and number of sensors, accuracy and method of connection can be selected individually for the respective application.

Temperature transmitter ( Option )

Transmitter is mounted inside the connection head of the sensor: directly on measuring inset or in the high cap of head.




The second method is advantageous as it allows changing standard measuring inset quickly without a need to disassemble the transmitter; it means reduction of time and costs of maintenance of the sensor and protecting wires against any damage possible. Mounting of two transmitters inside the connection head available upon request.

Example of sensor installation




ATEX, EAC Ex versions Certyfikaty ATEX, EAC Ex

Intrinsically safe and Flameproof designs are available for applications in hazardous areas. These models are provided with certificate for „intrinsically safe“ and „flameproof” type of protection according to Directive 2014/34/UE (ATEX) and EAC Ex TR-CU 012/2011 (Eurasian Economic Union).

Other versions

This data sheet contains only small part of our supplies program of resistance thermometers with exchangeable measuring insert. Upon the customer's request, other versions can also be delivered.
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