Type K EMF reference table, 0 °C cold junction, per IEC 60584-1:2013.
Using these tables
- Confirm the reference junction is at 0 °C, or apply cold-junction compensation before comparing.
- Look up the EMF at your process temperature in the table for the type actually installed.
- Compare the reading against the tolerance band for the class of wire you are using before judging accuracy.
Type K — Chromel / Alumel (IEC 60584-1)
EMF in mV for Type K (Chromel / Alumel). Reference junction at 0 °C. Tolerance: ±1.5 °C (0–375 °C), ±0.4% (375–1000 °C).
| Temperature (°C) | EMF (mV) |
|---|---|
| −200 | −5.891 |
| −100 | −3.554 |
| 0 | 0.000 |
| 100 | 4.096 |
| 200 | 8.138 |
| 300 | 12.209 |
| 400 | 16.397 |
| 500 | 20.644 |
| 600 | 24.905 |
| 700 | 29.129 |
| 800 | 33.275 |
| 900 | 37.326 |
| 1000 | 41.276 |
| 1100 | 45.119 |
| 1200 | 48.838 |
| 1300 | 52.410 |
| 1370 | 54.819 |
Data source: IEC 60584-1:2013. Full tables for Type N, J, T and E available on request.
Frequently Asked Questions
What reference junction temperature do these EMF tables use?
0 °C. All values are given in millivolts for a cold junction held at 0 °C, per IEC 60584-1:2013.
What is the EMF of a Type K thermocouple at 1000 °C?
41.276 mV with the reference junction at 0 °C. The table below runs from −200 °C to +1370 °C in 100 °C steps.
Which tolerance applies to the Type K table?
±1.5 °C between 0 °C and 375 °C, and ±0.4% of reading from 375 °C to 1000 °C. That is the Class 1 band defined by IEC 60584-1.
Can you supply tables for Type N, J, T and E?
Yes. Full EMF tables for those types are available on request, and we can issue calibration certificates against the specific batch you receive.
Bottom line: Use these values with a 0 °C reference junction: if your instrument uses a different reference, apply cold-junction compensation before comparing readings. Full IEC 60584-1 tables for Type N, J, T and E are available on request, as are batch-specific calibration certificates.