TEMPERATURE/RESISTANCE CHART
As the temperature rises at the thermistor block, the resistance drops.
IMPORTANT
If the ohmmeter reads “OL,” check the scale setting on the meter before assuming the thermistor is bad.
SM50 Resistance Chart
Temperature of Thermistor | Resistance | |||||
°C |
|
| °F |
| K Ohms (x 1000) | |
15.6° - 21.1° |
| 60° - | 70° | 15.31 | - 11.88 | |
21.1° - 26.7° |
| 70° - | 80° | 11.88 - 9.29 | ||
26.7° - 32.2° |
| 80° - | 90° | 9.29 | - 7.33 | |
32.2° - 37.8° |
| 90° - 100° | 7.33 | - 5.82 | ||
37.8° - 43.3° |
| 100° - | 110° | 5.82 | - 4.66 | |
43.3° - 48.9° |
| 110° - | 120° | 4.66 | - 3.75 | |
48.9° - 54.4° |
| 120° - | 130° | 3.75 | - 3.05 | |
54.4° - 60.0° |
| 130° - | 140° | 3.05 | - 2.49 | |
60.0° - 65.6° |
| 140° - | 150° | 2.49 | - 2.04 | |
65.6° - 71.1° |
| 150° - | 160° | 2.04 | - 1.68 | |
71.1° - 76.7° |
| 160° - | 170° | 1.68 | - 1.40 | |
76.7° - 82.2° |
| 170° - | 180° | 1.40 | - 1.17 | |
82.2° - 87.8° |
| 180° - | 190° | 1.17 | - 0.98 | |
87.8° - 93.3° |
| 190° - | 200° | 0.98 | - 0.82 | |
93.3° - 98.9° |
| 200° - | 210° | 0.82 | - 0.70 | |
100° |
| 212° | 0.73 | - 0.62 | ||
(boiling | water bath) |
|
| |||
104.4° - 110.0° | 220° - 230° | 0.59 | - 0.51 | |||
110.0° - 115.6° | 230° - 240° | 0.51 | - 0.43 | |||
115.6° - 121.1° | 240° - 250° | 0.43 | - 0.37 | |||
121.1° - 126.7° |
| 250° - 260° | 0.37 | - 0.33 | ||
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