What is the NIST standard for temperature?

The NIST Thermodynamic Metrology Group maintains and develops national standards of temperature (in the range 0.65 K to 2011 K), and supports calibration of all types of contact thermometers up to 2370 K.

What is standard platinum resistance thermometer?

A platinum resistance thermometer (PRT) is a piece of platinum wire which determines the temperature by measuring its electrical resistance. It is referred to as a temperature sensor. Such a sensor is a called a PT100 sensor, and its resistance changes by approximately 0.4 ohms per ºC.

What is the range of a PT100 RTD?

–200 to +850 °C
Platinum resistance thermometers (PRTs) offer excellent accuracy over a wide temperature range (from –200 to +850 °C). Standard sensors are are available from many manufacturers with various accuracy specifications and numerous packaging options to suit most applications.

What is the maximum temperature of platinum RTD device?

Platinum Resistance Temperature Detectors Platinum RTDs are the most common type of RTD used in industrial applications. This is because platinum has excellent corrosion resistance, excellent long-term stability, and measures a wide range of temperature, (-200… +850°C).

What’s the normal temperature rate?

98.6°F
The average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the “normal” body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C). A temperature over 100.4°F (38°C) most often means you have a fever caused by an infection or illness.

What is the NIST standard for calibration?

NIST traceable calibration certifies that the lab or manufacturer in question is equipped and able to calibrate equipment to National Institute of Standards and Technology (NIST) standards and that products by that manufacturer match NIST-maintained measurement standards.

What Pt100 stands for in standard platinum RTD?

RTD sensors made of platinum are called PRT, “Platinum Resistance Thermometer.” The most common platinum PRT sensor used in the process industry is the Pt100 sensor. The number “100” in the name indicates that is has a resistance of 100 ohms in 0°C (32°F) temperature. More details on that later.

Why it is called Pt100?

Pt100 sensors are the most common type of platinum resistance thermometer. Pt refers to that the sensor is made from Platinum (Pt). 100 refers to that at 0°C sensor has a resistance of 100 ohms (Ω). A resistance thermometer is a type of temperature sensor.

What is the output of Pt100?

To do this we have used a simple potential divider, according to the voltage divider calculator when the value of Input voltage is 5V and R1 is 5.1K and the PT100 resistance is 1.8K (minimum) we will get an output voltage of 1.304V and when the value of PT100 is 39.02K (maximum) we will get an output voltage of 4.42.

How is Pt100 calculated?

The temperature coefficient (indicated with Greek symbol Alpha => α) of the Pt100 sensor is indicated as the difference of the resistance at 100°C and 0°C, divided by the resistance at 0°C multiplied with 100°C. We get a result of 0.003851 /°C. Often this is referred and rounded as a “385” Pt100 sensor.

How does a Pt100 temperature probe work?

The key word is “Resistance” because a Pt100 measures temperature by using a resistance change to denote the temperature value. For a Pt100, the resistance at 0°C is 100Ω and at 100°C, it is 138.5Ω. Therefore, the resistance change for each degree Celsius change is 0.385Ω.

What is Pt100 sensor?

What is the temperature of the PT100 resistance table?

PT100 Resistance Table Temperature Measurement ºC 0123 456789 ºC-200.00 18.52-200.00-190.00 22.83 22.40 21.97 21.54 21.11 20.68 20.25 19.82 19.38 18.95-190.00-180.00 27.10 26.67 26.24 25.82 25.39 24.97 24.54 24.11 23.68 23.25-180.00-170.00 31.34 30.91 30.49 30.07 29.64 29.22 28.80 28.37 27.95 27.52-170.00

Is the PT100 an RTD sensor?

As the Pt100 is an RTD sensor, let’s look first at what an RTD sensor is. The abbreviation RTD comes from “ Resistance Temperature Detector. ” So it is a temperature sensor in which the resistance depends on temperature; when temperature changes, the sensor’s resistance changes.

What is the resistance and temperature coefficient of the printpt100?

Pt100 has a resistance of 100.00 ohms at 0°C and a resistance of 138.51 ohms at 100°C. The temperature coefficient can be calculated by the following:

What is the difference between PT100 and pt200?

Pt100 sensors. Temperature coefficient. The most common RTD sensor in process industry is the Pt100 sensor, which has a resistance of 100 ohms at 0°C (32°F). With the same logical naming convention, a Pt200 sensor has a resistance of 200 ohms and Pt1000 has 1000 ohms at 0°C (32°F).