Temperature transducers
Temperature transducers
The temperature transmitters from B+B Thermo-Technik are characterised in particular by optimum long-term stability and high accuracy. In addition, different sensors can be attached. These include Pt100 or Pt1000 sensors, which deliver reliable results. The temperature transducers provide a linearly scaled output signal of 0...5 V / 0...10 V / 4...20 mA or an I²C interface.
A wide variety of designs are suitable for a multitude of applications. Accordingly, the TxBlock USB transmitter is a digital temperature transmitter that is specifically used for head B mounting. The TxIsoRail digital transmitter is a special design for mounting connection heads B and MA. This transmitter is also suitable for mounting on standard rails. Miniaturised transmitter modules (sensor modules) with ASIC technology are also available. The transmitter module was developed specifically for standard housings.
Platinum temperature sensors are widely used in industrial temperature measurement applications. The non-linear behaviour of Pt sensors is corrected by the intelligent B+B temperature sensor module and output in the form of I²C or voltage.
A temperature transmitter is a transducer that processes the signal from a temperature sensor (e.g. thermocouple or resistance thermometer such as Pt100) and converts it into a standardised output signal – usually 4...20 mA or 0...10 V – so that it can be transmitted to a control unit, display or control system over long distances without interference.
Temperature transmitters are used in a wide range of applications, including: Industry: Monitoring and control of processes in the chemical, food, pharmaceutical and automotive industries. Building services engineering: Heating, ventilation and air conditioning systems for regulating room temperature. Energy: Monitoring temperatures in power stations, solar power plants and wind turbines. Research and development: Precise temperature measurements in laboratories and test facilities.
Transmitters offer the following advantages: Sensor signals are sensitive: a thermocouple delivers only a few millivolts; a Pt100 changes its resistance only slightly with temperature. Over longer cable lengths, these signals would easily be distorted. Coupling to a transmitter eliminates these disadvantages.
Standardisation: Industrial measuring and control devices are often designed for standard signals (4–20 mA is common worldwide).
Interference immunity: Current signals are less susceptible to electromagnetic interference and voltage losses than raw signals.