Platinum RTD Sensor - PT100 - 3 Wire 1 meter
long
PRODUCT ID: 3290
Description
For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature
detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as
its temperature changes, basically a kind of thermistor. In this sensor, the resistor is actually a
small strip of Platinum with a resistance of 100 ohms at 0°C, thus the name PT100. Compared to
most NTC/PTC thermistors, the PT type of RTD is much most stable and precise (but also more
expensive) PT100's have been used for many years to measure temperature in laboratory and
industrial processes, and have developed a reputation for accuracy (better than thermocouples),
repeatability, and stability.
This high-temperature PT100 sensor is equipped with an stainless steel shield is good for up to
550°C.
PT100 features:
Based on resistance measurement principles
Resistor material is Platinum with a value of 100 ohm at temperature 0°C
Platinum has a positive resistance temperature factor; resistance increases with rising temperature
Resistance variation is a function of temperature: 0.385Ω/°C nominal
High accuracy and stability compared to thermocouples, silicon-based temperature sensors, or
thermistors
Each sensor comes with
three wires.
Two of the wires connect to either side of the platinum
resistor like you'd expect. The
third wire
is also connected to one end of the PT100. If your RTD
amplifier supports 3-wire sensors, it will drive the resistor with the first two wires, and measure
the voltage differences so that it can subtract any voltage drop from the wires. If your RTD
amplifier only has 2-wire support simply leave the third wire disconnected.
Use our Adafruit RTD sensor breakout to connect this fine sensor to your favorite microcontroller
Technical Details
Cable specs:
Stainless steel tube: 4mm diameter by ~30mm long (size of stainless steel capsule may vary!)
Cable is approx 1m / 100cm long
Contains a PT100 temperature sensor
Three wires with terminal prong ends
PT100 technical specs:
Usable temperature range: -200 to 550°C (-328°F to +1,022°F)
Uses 3-wire interface
±0.5°C Accuracy from -10°C to +85°C
Product Weight: 19.3g / 0.7oz
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