What is a remote temperature transmitter?
A remote temperature transmitter is a temperature transmitter in which the temperature transmitter module and temperature sensor are packaged separately. Because the temperature sensor leads and probe dimensions are not restricted, it is suitable for installation in confined spaces, environments with high vibration, and high-temperature measurement.
Remote temperature transmitters offer a variety of output signal options, tailored to the requirements of the upstream circuit, including 4-20 mA current, 0-5 V voltage, 0-10 V, and digital S485 signals. They meet requirements ranging from general industrial environments to precision laboratory temperature monitoring. The transmitter module is partially packaged. It offers single-channel or multi-channel configurations. Temperature sensor probes can be selected in a variety of styles, including threaded, straight, and fixed, depending on installation requirements.
Why use an RTD instead of a thermocouple?
Thermocouple temperature transmitters and RTDs each have advantages and disadvantages. Choosing the right sensor depends on the specific application requirements. When high-temperature measurement, fast response, and low cost are required, a thermocouple may be a better choice.
When high accuracy, stability, and long-term reliability are required, an RTD is more suitable.
Is a Pt100 the same as an RTD?
No, they are different.
The PT100 is a temperature sensor, a platinum-wire RTD with excellent stability and linearity.
A resistance temperature transmitter (RTD) is a resistor made of a material. Its resistance changes with increasing temperature. If the resistance increases with increasing temperature, it is called a positive resistivity. If the resistance decreases with increasing temperature, it is called a negative resistivity.
