EINE WIEDERHOLBARE METHODE
So wird es benutzt
- Create a useful temperature difference: for envelope checks, indoor and outdoor temperatures should be stable and meaningfully different.
- Set or note emissivity and reflected-temperature assumptions; avoid shiny metal and glass when possible.
- Scan a broad area first, then compare the suspect spot with nearby surfaces built in the same way.
- Change the viewing angle. A hot or cold patch that moves with the camera may be a reflection.
- Confirm the pattern with another method such as an air-leakage check, moisture meter or direct temperature measurement.
MESSWERT VERSTEHEN
Ergebnis verstehen
- The color palette is relative to the selected scale; bright colors do not automatically mean dangerous heat.
- Surface temperature is not the same as the temperature inside a wall or pipe.
- A repeatable shape tied to construction details is more useful than one isolated pixel value.
METHODE PRÜFEN
Häufige Probleme und Prüfungen
Problem
Windows and metal show the room or the operator.
Was tun
These surfaces reflect infrared radiation. Change angle or use a nearby matte reference surface.
Problem
The whole image changes color while scanning.
Was tun
The camera may be auto-scaling. Lock a sensible temperature span before comparing two areas.
Problem
A cold patch appears only in windy weather.
Was tun
Suspect air leakage as well as insulation. Inspect seals and confirm under repeatable conditions.
VOR DER GEFAHR STOPPEN
Sicherheitsgrenze
- Keep clear of exposed electrical parts, hot surfaces and moving machinery while concentrating on the screen.
- Do not remove covers from energized equipment just to obtain an image.
- Treat a thermal anomaly as evidence for investigation, not permission to touch or dismantle equipment.
RATGEBER FÜR DEN SINNVOLLEN KAUF
Worauf beim Kauf achten
- Thermal resolution and a focus system usually matter more than a very wide advertised temperature range.
- Choose adjustable emissivity, manual span control and a way to export original images with measurement data.
- A wider field of view helps in small rooms; close-focus capability helps with terminals and small components.
Gerätearten
Am besten für: Occasional surveys when compact size matters.
Am besten für: Fast whole-room scans at normal distances.
Am besten für: Small details, electrical inspection and documented comparisons.
Typische Funktionen
Thermal sensor resolutionFocus distanceManual temperature spanAdjustable emissivityRadiometric image export
Dafür lohnt sich der Aufpreis
- Real detector resolution rather than enlarged display pixels
- Manual focus for terminals and small defects
- Exported images that retain temperature data
Dafür lohnt sich der Aufpreis meist nicht
- Extreme high-temperature range for ordinary homes
- A large number of color palettes
- Software upscaling presented as sensor resolution