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9. Measuring
To receive precise measured values, the infrared thermometer must be adjusted to the ambience temperature. Let the
device adjust to the new ambience temperature after a site change.
Longer IR measurements of high temperatures at low measuring distances lead to heating of the meters and thus to
wrong measurements. For precise measured values: The higher the temperature, the larger should the measuring
distance and the shorter the measuring duration be.
Glossy surfaces will falsify the measuring result in the IR measurement. To compensate, the surface of glossy parts
can be covered with adhesive tape or matte-black paint. The devices cannot measure through transparent surfaces,
such as glass. Instead, it will measure the surface temperature of the glass.
a) Display symbols and values
In measuring operation, various parameters and symbols are displayed on the screen. The following list explains
their meaning:
IR measuring function without camera
image
Dew point measuring function
IR measuring function with camera
image
Video recording running
Start symbol
Measurement is triggered by pushing the
measuring button
Pause icon
Measurement is interrupted by releasing
the measuring button
Lower alarm level activated (Low) Lower alarm value has been undercut
Upper alarm level activated (High) Upper alarm value has been exceeded
Target laser is activated Marks the picture centre in camera mode
Symbol for internal memory Symbol for SD card memory
Pre-set degree of emission TK Temperature thermocouple type K
AT Ambient temperature RH% Relative humidity
DP Dew point WB Evaporation temperature (WetBulb)
DIF
Temperature difference between min
and max.
AVG
Average temperature of the current
measurement
MIN
Minimum temperature of the current
measurement
MIN
Maximum temperature of the current
measurement
b) Measurement settings
Further settings can be made in the individual measuring functions and the values to be displayed can be enabled
or disabled there.
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