14 GB/IE/NI
Use this method to select the tolerance range indicated below the display:
Normal
0.5 °C
1°F
3 °C
5°F
5.5 °C
10°F
Note:
Under “Normal“ mode, the tolerance range for temperature deviation
function is turned-off. So, no display color change / acoustic signal will be
observed for any amount of temperature deviation from reference value under
“Normal“ mode.
Scan temperature deviation
Select a reference temperature as described above.
Press the Measure button
3
and aim the laser pointer with 8 dot circle
1
at
the area you wish to measure. The temperature is indicated in the display
5
.
Hold the measure button whilst scanning, and slowly and steadily move the
laser pointer with 8 dot circle across the surface you wish to measure. The
temperature deviations between the reference value and the measurement
are indicated as follows:
Visual
indication
Acoustic
indication
Cause
Red display
background
Rapid tone series The upper temperature threshold has
been exceeded
Green display
background
No tone
Within the temperature range setting
Blue display
background
Slow tone series
The value is below the lower threshold
Example of use
To e.g. test cold air entering the space between a window frame and brickwork,
first scan the temperature along the entire frame, next to the closed window. Select
the warmest area of the frame as the reference temperature, then e.g. a temperature
variation of 3 °C / 5°F.
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