Pt100 Platinum Resistance Thermometer
Pt100 electrical resistance temperature sensor - ranging -220 to 750 degrees Celsius.
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The PT100 has a resistance of 100 ohms at 0 °C and 138.5 ohms at 100 °C.
| Temperature (oC) | Electrical Resistance (Ω) |
|---|---|
| -220 | 10.41 |
| -200 | 18.53 |
| -180 | 27.05 |
| -160 | 35.48 |
| -140 | 43.80 |
| -120 | 52.04 |
| -100 | 60.20 |
| -80 | 68.28 |
| -60 | 76.28 |
| -40 | 84.21 |
| -30 | 88.17 |
| -20 | 92.13 |
| -10 | 96.07 |
| 0 | 100.00 |
| 10 | 103.90 |
| 20 | 107.79 |
| 30 | 111.67 |
| 40 | 115.54 |
| 50 | 119.40 |
| 60 | 123.24 |
| 80 | 130.89 |
| 100 | 138.50 |
| 120 | 146.06 |
| 140 | 153.57 |
| 160 | 161.04 |
| 180 | 168.47 |
| 200 | 175.84 |
| 220 | 183.17 |
| 240 | 190.46 |
| 260 | 197.70 |
| 280 | 204.88 |
| 300 | 212.03 |
| 320 | 219.13 |
| 340 | 226.18 |
| 360 | 233.19 |
| 380 | 240.15 |
| 400 | 247.06 |
| 420 | 253.93 |
| 440 | 260.75 |
| 460 | 267.52 |
| 480 | 274.25 |
| 500 | 280.93 |
| 520 | 287.57 |
| 540 | 294.16 |
| 560 | 300.70 |
| 580 | 307.20 |
| 600 | 313.65 |
| 620 | 320.05 |
| 640 | 326.41 |
| 660 | 332.72 |
| 700 | 345.21 |
| 750 | 360.55 |
Note! - there are also PT1000 sensors with resistance 1000 ohms at 0 °C.
The linearization equation for the Pt100 thermometer is
Rt = R0 (1 + A t + B t2 + C (t - 100) t3) (1)
where
Rt = resistance at temperature t (ohm)
R0 = resistance at temperature 0oC (ohm)
t = temperature (oC)
A = 3.9083 10–3
B = –5.775 10–7
C = –4.183 10–12 (for temperatures below 0oC)
C = 0 (for temperatures above 0 °C)
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