Bosch UniversalTemp Original Instructions Manual page 25

Measuring surface
The infrared radiation of the measuring surface is determined during the contactless
measurement of the surface temperature.
The laser point marks the approximate centre of the measuring surface. For an optimum
measurement reading, position the measuring tool so that the laser beam meets the
measuring surface perpendicularly to this point.
Do not direct the laser beam at persons or animals and do not stare into the laser
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beam yourself (even from a distance).
Increasing the distance between the measuring tool and the object being measured in-
creases the size of the measuring surface. At a distance of 1 m, the measuring surface is
approx. 8.3 cm in size if the laser beam is perpendicular to a flat measuring surface.
At a surface temperature of −10 °C to +500 °C, the optimum measuring distance is
between 0.75 m and 1.25 m. Below −10 °C, the optimum measuring distance is
between 10 cm and 30 cm.
The displayed reading is the average value of all temperatures measured within the
measuring surface.
Stand back from very hot objects. There is a risk of burns.
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Do not hold the measuring tool directly against hot surfaces. The heat can damage
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the measuring tool.
Information about the measuring conditions
Highly reflective or glossy surfaces (e.g. glossy tiles, stainless steel fronts or cooking
pots) can affect the surface temperature measurement. If necessary, mask the area to be
measured with a dark, matt adhesive tape that conducts heat well. Allow the tape to ac-
climatise briefly on the surface.
Measuring through transparent materials (e.g. glass or transparent plastics) is funda-
mentally not possible.
Consequently, the more suitable and stable the measuring conditions are, the more ac-
curate and reliable the measurement readings are.
Infrared temperature measurement is impaired by smoke, steam or dusty air.
It is therefore important to ventilate the room prior to measuring, especially when the air
is contaminated or steamy. For example, do not perform measurements in a bathroom
immediately after the shower has been used.
Once ventilated, allow the room to reacclimatise a while until it returns to the usual tem-
perature.
Bosch Power Tools
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1 609 92A 7MA | (10.06.2022)