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Configuration
The top line is the same for all configuration screens. It contains a back arrow which, when
pressed, switches to the home screen and simultaneously saves the set configuration values, and a line of 5
symbols which represent the individual configuration screens – "alarm limits", "time", "display", "sound"
and "factory settings". The selected icon will always lighten up.
Alarm limits configuration screen
Fig. 4 – Alarm limits configuration screen
Two alarm limits "warning" and "alert" can be set for the measured substances, the exceeding of
which is always indicated visually on the display (in case of the display being off, the display will light up for
5 seconds) and acoustically by a single beep of the internal siren. In the event that any alarm persists for a
long time, the acoustic and visual indication is repeated after 30 minutes. Alarm limits have a hysteresis of
+/- 10 % of the set value for exceeding the limit. An exceeded “warning” limit is visually indicated by yellow
and an exceeded “alert” limit is indicated by red. Acoustic alarms can be switched off in the "Sound
Configuration Screen " settings.
The alarm limits for CO cannot modified by the user due to the high hazardousness of CO and the
importance of the alarm. For the same reason, it is not possible to turn off the acoustic alarm for CO. If the
CO limit is exceeded, the internal siren will beep 5 times with a repeat interval of 3 sec and the display will
light up permanently.
The default limit values, based on international hygiene and medical recommendations, are as follows:
Factory limit settings
warning
alert
Rn
300
600
Bq/m
3
Gama
1
100
µSv/hr
CO
50
100
ppm
CO
2
1000
2000
ppm
VOC
50 70 %
When setting the limits, the lower line of symbols allows selection of the substance whose limits
are to be set. The factory values of the alarm limits correspond to the above table. By pressing the + and -
buttons or by pressing the alarm value (a numerical pad will pop up) it is possible to change the values. The
factory values of the alarm limits can be restored to factory settings at any time.
