What is RTD resolution?

17.2. The resistance temperature detector (RTD), is a thin film device made of platinum, which is used for measuring temperature. It has great stability, accuracy and repeatability. They are among the most precise temperature sensors available with resolution ± 0.1 °C.

What is RTD 385?

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). Often this is referred and rounded as a “385” Pt100 sensor.

What is RTD temperature measurement?

An RTD (Resistance Temperature Detector) is a sensor whose resistance changes as its temperature changes. The resistance increases as the temperature of the sensor increases. The resistance vs temperature relationship is well known and is repeatable over time. An RTD is a passive device.

What’s the resistance of a RTD temperature sensor?

There are three types of wire configurations, 2 wire, 3 wire, and 4 wire, that are commonly used in RTD sensing circuits. A 2-wire configuration with a compensating loop is also an option. The RTD PT100, which is the most commonly used RTD sensor, is made of platinum (PT), and its resistance value at 0°C is 100 O.

What is the resistance of a PT100 RTD sensor?

A 2-wire configuration with a compensating loop is also an option. The RTD PT100, which is the most commonly used RTD sensor, is made of platinum (PT), and its resistance value at 0°C is 100 O. In contrast, a PT1000 sensor, also made of platinum, has a resistance value of 1000 O at 0°C.

What do you need to know about 3-A RTDs?

Designed for clean-in-place applications such as dairy processing and food-preparation areas, these 3-A certified RTDs have a sanitary quick-clamp probe connection for easy removal. Check the temperature of liquids in hygienic applications such as food or pharmaceutical lines and tanks.

What kind of signal does a RTD probe send?

To protect the probe from vibration, corrosion, and shock, these RTD probes come with a thermowell. Send probe readings to switches, controllers, and data loggers without a separate signal converter. A built-in transmitter converts the probe signal to a 4-20 mA signal.