What Is Pt200 Temperature Sensor?

Pt200 sensors are a rare type of platinum resistance thermometer. Pt refers to that the sensor is made from Platinum (Pt). 200 refers to that at 0°C sensor has a resistance of 200 ohms (Ω).

See definition: Resistance thermometer

View Detailed Technical Information: Resistance Thermometer

What is the difference between PT100 and Pt200?

The main difference between PT100 and PT200 temperature sensors is in their nominal resistance values at 0 degrees Celsius (32 degrees Fahrenheit) and their sensitivity to temperature changes.

PT100:
A PT100 temperature sensor has a nominal resistance of 100 ohms at 0 degrees Celsius. It is one of the most common types of resistance temperature detectors (RTDs). As temperature changes, the resistance of the PT100 sensor increases or decreases linearly with temperature, following a specific resistance-temperature curve. The resistance change per degree Celsius is typically around 0.385 ohms.

PT200:
A PT200 temperature sensor, on the other hand, has a nominal resistance of 200 ohms at 0 degrees Celsius. Like the PT100, it follows the same principle of resistance change with temperature, but with a different nominal resistance value. PT200 sensors are less common compared to PT100 sensors but are still used in various applications where a different resistance value is required.