What Does a Temperature Transmitter Actually Do?
A temperature transmitter is a device that converts the output from a temperature sensor (thermocouple, RTD, or thermistor) into a standardized output signal that can easily be read and processed by control systems, data acquisition systems, or display units. Temperature transmitters perform a variety of functions including signal conversion, signal conditioning, amplification, isolation, and transmission. Signal conversion transforms a raw signal from the temperature sensor into a standardized signal (often 4-20 mA current loops, 0-10 V voltage signal, or digital signals). Signal conditioning enhances the signal quality from the sensor, usually filtering, linearizing, and compensating the signal. Amplification increases the strength of the weak sensor signal to a level suitable for further processing and transmission. Isolation electrically separates the sensor from the control system to prevent ground loops and protect against high-voltage surges. Lastly, transmission occurs and sends the conditioned and amplified signal over long distances to control systems, display units, or data loggers.
Acromag offers a range of temperature transmitters suitable for process control, factory automation, and other industrial applications where precise temperature monitoring is crucial for high performance and reliability.
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