6
EN
CO₂ air quality monitor BZ25
Alarm function
The device features an alarm function that indicates when a
previously set CO
2
threshold is exceeded.
Please proceed as follows to enable the alarm function:
1. Press the
ALARM
button.
ð
The alarm function is enabled and the alarm symbol
appears on the display. As soon as the measured value
exceeds the previously set limit value, an acoustic alarm
signal will be emitted and the buttons below the display
start to flash in red.
2. Press the button again to exit or disable the alarm mode.
Setting the limit value for the alarm function
Please proceed as follows to set a new limit value:
1. Press and hold the
ALARM
button for approx. 5 seconds.
ð
The previously set limit value appears on the display
and the displayed alarm symbol flashes.
2. Press or to increase or reduce the decrease the
displayed number.
3. Then you can press the
ESC
button to exit the mode and to
adopt the set value or to change the limit values for the
feel-good indication .
Adjusting the limit values for the feel-good indication
Note:
This setting can only be adjusted in the setting mode for the
alarm threshold! After having set an alarm threshold, do not
press the
ESC
button but rather the
ALARM
button again for a
brief moment. The lower limit value for the feel-good indication
will be displayed and the icons of the feel-good
indication start to flash.
1. Press or to increase or reduce the lower limit value for
the feel-good indication.
2. Press the
ALARM
button to switch over to setting the upper
limit value.
3. Press or to increase or reduce the upper limit value for
the feel-good indication.
4. Press the
ESC
button to exit the mode and to adopt the set
value.
Displaying the minimum / maximum value
The device saves the highest and lowest display values. To call
up these values, please proceed as follows:
1. Press the
MAX MIN
button.
ð
MAX appears on the display and the highest measured
values for carbon dioxide, temperature and relative
humidity will be displayed as well.
2. Press the button again to view the minimum values (
MIN
).
3. Press the
ESC
button to exit this mode.
Background illumination
The background illumination will be switched on in addition by
pressing either
ALARM
,
MAX MIN
, or . The background
illumination goes out after approx. 20 seconds of non-use.
Press the
ESC
button to exit this mode.
Setting the °C/°F indication
Press the
°C/°F
button at the rear of the device to switch
between an indication in degrees Celsius and degrees
Fahrenheit.
Maintenance and repair
Cleaning
Clean the device with a soft, damp and lint-free cloth. Make
sure that no moisture enters the housing. Do not use any
sprays, solvents, alcohol-based cleaning agents or abrasive
cleaners, but only clean water to moisten the cloth.
Repair
Do not modify the device or install any spare parts. For repairs
or device testing, contact the manufacturer.
Disposal
The icon with the crossed-out waste bin on waste
electrical or electronic equipment stipulates that this equipment
must not be disposed of with the household waste at the end of
its life. You will find collection points for free return of waste
electrical and electronic equipment in your vicinity. The
addresses can be obtained from your municipality or local
administration. For further return options provided by us please
refer to our website www.trotec24.com.
The separate collection of waste electrical and electronic
equipment aims to enable the re-use, recycling and other forms
of recovery of waste equipment as well as to prevent negative
effects for the environment and human health caused by the
disposal of hazardous substances potentially contained in the
equipment.
