CTE™ ΔT & Severity Calculator
Certified Thermal Electrician™ severity is based on raw ΔT. Enter up to three reference temperatures to establish a baseline.
Blank fields are ignored.
- Set emissivity correctly before measuring temperatures.
- Use the same emissivity and camera settings for hotspot and references.
- Choose similar components under the same load.
- Use 2–3 references when possible to reduce noise.
- Do not manually correct temperatures after measurement.
- Severity is evaluated using ΔT in °F per the official CTE™ chart.
- Severity indicates priority — not failure.