ENGLISH
6
Average
temperature Coldest
Hottest
Centre point
Switch themax/min temperature display on/off.
On:
Instructions for use
Things to consider when measuring temperature with thethermal imaging camera
• The most common application for athermal imaging camera is to use it to see
thehot and cold areas and temperature differences around awindow, in awall cavity
or radiator for example. The colours on thedisplay show hot (red) and cold (blue)
areas (if thecolour palette of thecamera has been set to red/blue). The different
colours make it easier to see theareas on thecamera display having different
temperatures and this is usually more important than theactual temperatures.
• The colours on theimage only show which part of area is cold and which part is hot.
The blue area in one heat map image need not necessarily have thesame
temperature as ablue area in another heat map image. The blue colour only
shows which part of theimage is colder compared to therest of theimage.
If you would like to measure thetemperature, there are some things you need to consider:
• In simple terms, you could say that thethermal imaging camera registers
theinfrared (IR) radiation anobject emits.
• Temperature measurement depends on theemission factor of theobject. The emission
factor is ameasure of thecapacity of amaterial (object) to emit infrared radiation.
• The emission factor differs between materials and is influenced by surface colour
and texture.
• In order to achieve more accurate temperature measurements, it is therefore
necessary to set theemission factor of thecamera to suit thematerial and surface
texture of theobject being measured.
• The camera menu has afunction for setting theemission factor. The camera has
4 set values: 0.95, 0.80, 0.60, 0.30 and amenu where you can select your own
emission factor from 0.10 to 1.00.
