TFA KLIMA GUARD Mode D'emploi page 7

TFA No. 30.5010 Anleit_10_21
KLIMA GUARD
– Digital Thermo-Hygrometer
If the measuring unit indicates an air temperature of 20° C and a relative humidity
of 65%, then the dew-point temperature will be 13.2° C. What does that mean?
That the air, for instance in your bedroom, will condense and form water droplets
at all points on walls and ceilings that are cooler than 13.2° C, and that this may
later lead to patches of mould or damp stains.
If the air is at a relative humidity of say 40%, then the dew-point temperature is
only 6 °C. The walls and ceilings would therefore have to be significantly colder for
the air to reach its dew-point and for water droplets to form.
Wet-bulb temperature
The wet-bulb temperature is based on the psychometric measurement. Water evap-
orating from the moistened wick on the wet-bulb thermometer cools the ther-
mometer bulb and lowers the temperature reading. The cooling effect of the evapo-
ration from the bulb depends on the amount of water vapor present in the air.
Getting started
• Open the battery compartment and remove the insulation strip.
• A brief beep tone will sound and all LCD segments will light up for two
seconds.
• Pull off the protection foil on the display.
• The unit is now ready to use.
Display
• The upper row shows the indoor relative humidity, the lower row the room tem-
perature. The temperature unit can be changed from °C to °F by the SET button.
MAX/MIN values:
• Press the MODE button.
• MAX appears on the display
• The highest temperature and humidity values are displayed since the last reset.
• Press the MODE button again.
• MIN appears on the display.
• The lowest temperature and humidity values are displayed since the last reset.
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01.11.2021 9:41 Uhr Seite 7
KLIMA GUARD
– Digital Thermo-Hygrometer
• The instrument will automatically quit the MAX/MIN mode if no button is
pressed within a longer time or press the MODE button again to return to the
actual display.
• Press the CLEAR button while the maximum and minimum values are displayed
to reset the values to the present temperature.
Dew point and wet-bulb temperature:
• Press either the ▲ or ▼ button in normal mode to change between dew point
(display Td), wet-bulb temperature (display Tw) and normal temperature. In
MAX/MIN mode, press the ▲ or ▼ buttons to display the highest and lowest
values of these units.
Auto Shut Down
Press and hold the CLEAR button. AUTO OFF appears on the display. The display
will shut down if no buttons are pressed for 12 minutes. To turn on the product,
just press any button. To remove this feature, press and hold the CLEAR button,
the AUTO OFF icon will disappear.
Set Alarms
• Press and hold the SET button. ALARM OFF appears on the display. Press
either the ▲ or ▼ button to toggle the low alarm limit to "ON". Press the SET
button again, the display will show
ton to toggle the high alarm limit to "ON". Now both the high and low alarms are
activated. The user can also select either one value.
• Now press the SET button again. ALARM appears and °C is flashing. Press the
▲ or ▼ button to select the parameter for the alarm: °C = temperature, % =
humidity, °C Td = dew point, °C Tw = wet bulb temperature. Press the SET but-
ton to confirm the alarm type.
• Press the MODE button three times.
limit is activated). Press the SET button and the value is flashing. Press the ▲
button to advance and ▼ to decrease the lower alarm value. Hold the buttons
for a fast run. Press the MODE button again.
alarm limit is activated). Set the high alarm limit in the same manner.
ALARM OFF. Press either the ▲ or ▼ but-
ALARM appears (when the low alarm
ALARM appears (when the high
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