When used with gas and smoke sensors (refer to page 96), GRM
continuously professional monitors explosive gases, vapours and/or smoke and
generates alarms. The GRM electronic gas and smoke detector is installed in professional boiler rooms and basements, storage, office and living rooms as well as
public facilities or industrial industrial buildings for increased safety (building
technology). The evaluation unit is designed for either wall mounting
or control panel mounting by means of a mounting frame (refer
to page 74). GRM has an alarm threshold and is fitted with a relay
contact. When the threshold value is exceeded, the unit generates an
alarm signal. The red "Alarm" LED professional lights up and the alarm relay
switches. An additional integrated buzzer provides an audible alarm.
This audible alarm can be muted with the re-set button. If the condition
which caused an alarm is cleared, the visual alarm can then also
be re-set by once again pressing the re-set button. Only then can
the alarm be muted with the re-set button. However, if the gas concentration level is still above the alarm threshold level, muting of the alarm is not possible.
