i-OnTemp User Manual
Rev 1.0
Pg. 11
5.2 Thermography Settings
•
5.2.1 Temperature units
– Choose Fahrenheit or Celsius by checking the box
of the required unit
•
I-OnTemp Default Value: Celcius
•
5.2.2 Adjusting Emissivity
– Emissivity is the ability of the surface of a
material to emit energy as thermal radiation. The emissivity value (0 – 1)
represents the ratio of energy radiated by the observed material to the energy
radiated by a black body at the same temperature.
•
To adjust the emissivity ratio
o
Tap
the Emissivity option on the screen.
o
Scroll
to the correct emissivity ratio and tap the
Set
button.
•
I-OnTemp Default Value: 0.98
•
5.2.3 Reflected temperature
represents the energy emitted by the
surrounding objects and reflected by the measured surface. Setting this value
accurately is important if the emissivity value is low.
•
To adjust the reflected temperature
:
o
Tap the Reflected Temperature option on the screen.
o
Scroll
to the correct temperature and tap the
Set
button.
•
I-OnTemp Default Value: 25 Celsius/
•
5.2.4 Adjusting the scale Truncation:
Within every image frame, the
temperature span is calculated and displayed on the top of the thermography
image. Use this parameter to define the minimum number of pixels (defined
by percentage) required to affect the temperature span calculation.
•
To adjust the truncation value
:
o
Tap
the Scale Truncation option on the screen.
o
Scroll
to the correct temperature and tap the
Set
button.
•
I-OnTemp Default Value: 0.25%
