Platinum RTD Sensor - PT100

SKU: SPX-17059 Brand: Sparkfun

It is suitable for applications in the temperature range of -200°C to 600°C but are more commonly used in the range -50°C to +250°C...

$38.45 AUD, inc GST

$34.95 AUD, exc GST

Available with a lead time
Expect dispatch between Feb 20 and Feb 24

Quantity Discounts:

10-25 $33.91 (exc GST)
25+ $33.21 (exc GST)

A PT100 is a Platinum RTD (Resistance Temperature Detector) with a resistance of 100O at 0°C which changes with temperature. It is suitable for applications in the temperature range of -200°C to 600°C but are more commonly used in the range -50°C to +250°C.

To use this sensor with our Qwiic PT100 ADC please connect the red wires to terminals 3 & 4. Connect the white wire to terminal 2. Short the A and B pads on the back of the Qwiic PT100 PCB. Be sure to use Example4-3-Wire from within the ADS122C04 library.

How do PT100 sensors work? On four-wire sensors the red wires are connected to one end of the resistor; the white wires are connected to the other end. For three-wire, they use the same scheme: the two reds to one end; and one white to the other. Using a DMM you should see ~1 Ohm between the red wires; and ~100 Ohms between red and white.

100O nominal resistance at 0°C
Temperature Coefficient (0°C up to 100°C): 3.85 - 10^-3 K^-1
Tolerance classes to DIN EN 60751: A, B
Operating Temperature Range: -50°C up to 550°C
Measurement Current (DC) at 25°C: 1mA
Maximal Permissible Peak Current (DC) at 25°C: 3mA
Insulation Resistance: > 10MO
Self-heating at 0°C: < 0.5 K / mW

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