Bosch GIS 1000 C Professional Notice Originale page 27

OBJ_BUCH-2270-005.book Page 27 Wednesday, September 21, 2016 5:29 PM
You can manually adjust the temperature difference from
which the mark is displayed in the red range. To do so, open
the "Main Menu" (see "Navigating the "Main Menu"",
page 28). Select the "Functions" submenu. Set the desired
temperature difference under "Thermal Bridge".
If there are thermal bridges, check the thermal insulation in
this area.
Dew Point Mode
The ambient temperature and relative humidity (see "Relative
Humidity", page 30) are measured in dew point mode. The
dew point temperature is calculated based on both values
(see "Dew Point Temperature", page 30). The surface tem-
perature is also measured.
The dew point temperature is compared with the surface tem-
perature and the result is interpreted as to the risk of mould.
Please note that the measuring results are always valid only
for the current measuring conditions. A measurement over
time is not possible. If critical measuring results are obtained,
you should repeat the measurement at different times and un-
der different conditions.
To switch to dew point mode, return to the standard display
screen if not already on it. Then press the left-hand arrow but-
ton 15 or the right-hand arrow button 11 repeatedly until the
"Dew Point" window is displayed with a brief explanation of
the mode. To hide the explanation prematurely, press the
save button 9. To hide the explanation and immediately start
a measurement, press the measure button 4.
Press the measure button 4 and aim the measuring tool per-
pendicular to the centre of the measuring object. After com-
pletion of the measurement, the surface temperature of the
measuring object most recently aimed at is fixed in the indica-
tor o, the ambient temperature in the indicator i and the rela-
tive humidity in the indicator h. The calculated dew point tem-
perature is displayed in j.
The measuring tool automatically compares the values and
shows the interpretation of the values with the mark q on the
result scale l:
– Mark q in green range: There is no mould risk under the cur-
rent conditions.
– Mark q in yellow range: The values are borderline; pay at-
tention to room temperature, thermal bridges and humidi-
ty, and repeat the measurement if necessary at a later
point in time.
– Mark q in red range: There is an increased mould risk be-
cause the humidity is too high or the surface temperature
is close to the dew point temperature. The conspicuous
value flashes in the indicator.
A mould risk warning is given when the surface temperature is
80 % of the dew point temperature. When the risk of mould is
given, you should – depending on the cause – reduce the hu-
midity through more frequent and thorough ventilation, in-
crease the room temperature and eliminate thermal bridges.
Note: The measuring tool cannot detect mould spores. It only
indicates the possible formation of mould when the condi-
tions remain the same.
Bosch Power Tools
User Mode
Surface temperature, ambient temperature and relative hu-
midity are measured in user mode. The dew point tempera-
ture and the average temperature (mean value of the surface
temperatures during a continuous measurement) are calcu-
lated based on these values.
You can hide the following values in the display as required:
average temperature, relative humidity, ambient tempera-
ture and dew point temperature.
To do so, open the "Main Menu" (see "Navigating the "Main
Menu"", page 28). Select the "Functions" submenu and then
"User Mode". There you can switch the indicators "Average
Temp. ", "Humidity", "Room Temperature" and "Dew
Point" on and off.
For surface temperature measurements you can choose
whether the minimum and maximum values k of the result
scale l are adapted automatically or defined manually. To do
so, go to the "User Mode" menu and then to the "Scale
Range" submenu.
– Select "Auto" if you want the values k to be determined au-
tomatically as in surface temperature mode. The minimum
and maximum temperature values of the measurement ap-
pear in the indicator k as soon as the difference between
the measured values is more than 3 °C.
– Select "Preset" to define the values manually. Set the de-
sired values in the "User Mode" menu under "Scale Low-
er Limit" and "Scale Upper Limit". The manually set min-
imum and maximum values appear in the indicator k.
This enables you to, for example, make screenshots of dif-
ferent measurements comparable using the mark q.
To switch to user mode, return to the standard display screen
if not already on it. Then press the left-hand arrow button 15
or the right-hand arrow button 11 repeatedly until the "User
Mode" window is displayed with a brief explanation of the
mode. To hide the explanation prematurely, press the save
button 9. To hide the explanation and immediately start a
measurement, press the measure button 4.
Press the measure button 4 and aim the measuring tool per-
pendicular to the centre of the measuring object. The select-
ed values are displayed after completion of the measurement.
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1 609 92A 211 | (21.9.16)