EN 2
Dew point scanner BP25
Improper use
The device must not be pointed at people. Do not use the device
in potentially explosive atmospheres, for measurements in
liquids or at live parts. Trotec accepts no liability for damages
resulting from improper use. In such a case, any warranty
claims will be voided. Any unauthorised modifications,
alterations or structural changes to the device are forbidden.
Personnel qualifications
People who use this device must:
• be aware of the dangers that occur when working with
laser measuring devices.
• have read and understood the operating manual, especially
the Safety chapter.
Residual risks
Warning of laser radiation
Laser class2, Pmax.: <1mW, λ: 650nm,
EN60825-1:2014
Do not look directly into the laser beam or the opening
from which it emerges.
Never point the laser beam at people, animals or
reflective surfaces. Even brief eye contact can lead to
eye damage.
Examining the laser output aperture by use of optical
instruments (e.g. magnifying glass, magnifiers and the
like) entails the risk of eye damage.
When working with a laser of class2, observe the
national regulations on wearing eye protection.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Caution
Keep a sufficient distance from heat sources.
Note
To prevent damages to the device, do not expose it to
extreme temperatures, extreme humidity or moisture.
Note
Do not use abrasive cleaners or solvents to clean the
device.
Information about the device
Device description
The dew point scanner BP25 uses an infrared and humidity
sensor to measure surface temperatures as well as air
temperature and humidity without contact. An integrated dual
laser serves for the determination of the measuring spot
diameter.
The dew point is detected from these values. If the temperature
in one part of the room is at or below the dew point, then the
humidity in the air condenses. This can cause mould to form.
Using the dew point scanner BP25 to measure the dew point,
you can accurately pinpoint areas at risk of mould formation or
poor insulation.
The risk of condensation forming at the measuring spot is
indicated both by an acoustic alarm function and a changed
display colour.
When not in use, an automatic switch-off saves the battery.
Measuring principle
The device measures the temperature by means of an infrared
sensor. Important factors playing a role in the temperature
measurement are the measuring spot diameter and the
emissivity of the surface to be measured, which is set to the
fixed value of 0.95 here.
Measuring spot
Observe the ratio of the distance to the measuring spot
diameter. The larger the distance to the object, the larger the
measuring spot diameter and hence, the less precise the
measured result. The on-demand dual laser indicates the
approximate diameter of the measuring spot, which is used by
the device to calculate an average temperature. Consequently, it
is a mere aiming aid and not intended for the actual
temperature measurement. The smaller the measuring spot, the
more precise is the measured result.
