13 GB/CY
Hold the measure button whilst scanning, and slowly and steadily move the
laser dot 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.
Now steadily scan again, along all sides of the window, next to the frame. The
blue colour display and a slow tone series indicates a possible influx of cold air
with a difference of 3 °C / 5°F.
Battery state display
The battery symbol appears in the display
5
as soon as the battery voltage
is too low.
Insert a new battery as described in chapter „Inserting/replacing the battery“
when this symbol appears.
A drained battery may leak. In addition, the measurement may not be accurate
as specified in „Technical Data“ if the battery voltage is low.
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