Fluke TI450 SF6 User Manual - Page 35

Transmission/Transmittance Adjustment, Spot Temperatures, Thermal Imagers, Display All

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Thermal Imagers Menus Transmission/Transmittance Adjustment When you do infrared inspections through infrared-transparent windows (IR windows), not all of the infrared energy emitted from the objects of interest is transmitted through the optical material in the window. If the transmission percentage of the window is known, you can adjust this percentage in the Imager or in the SmartView software. Adjustment of the transmission correction can make the accuracy of the temperature measurement better in many situations. To adjust the transmission percentage: 1. Go to Measurement > Transmission. 2. Push / to adjust the percentage between 10 % and 100 %. 3. Push  or  when done. Note If Display Information is set to Display All, you see the information about current transmission correction as τ = xxx%. Spot Temperatures The Spot Temperatures are floating HI and LO temperature indicators that move on the display as the temperature measurements of the image fluctuate. To turn on/off the hot and cold spot indicators: 1. Go to Measurement > Spot Temp. 2. Push / to highlight On or Off. 3. Push  or  to set the new value. 31

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Thermal Imagers
Menus
31
Transmission/Transmittance Adjustment
When you do infrared inspections through infrared-transparent windows
(IR windows), not all of the infrared energy emitted from the objects of interest
is transmitted through the optical material in the window. If the transmission
percentage of the window is known, you can adjust this percentage in the
Imager or in the SmartView software. Adjustment of the transmission correction
can make the accuracy of the temperature measurement better in many
situations.
To adjust the transmission percentage:
1.
Go to
Measurement
>
Transmission
.
2.
Push
/
to adjust the percentage between 10 % and 100 %.
3.
Push
or
when done.
Note
If Display Information is set to
Display All
, you see the information
about current transmission correction as
τ
= xxx%
.
Spot Temperatures
The Spot Temperatures are floating HI and LO temperature indicators that
move on the display as the temperature measurements of the image fluctuate.
To turn on/off the hot and cold spot indicators:
1.
Go to
Measurement
>
Spot Temp
.
2.
Push
/
to highlight
On
or
Off
.
3.
Push
or
to set the new value.