Operating Modes - Detnov CMD-501 Manuel D'installation Et Mode D'emploi

3.3.3- Test Button (C).
Pressing this button will allow you to check the display and keypad LEDs are working
correctly and see the number of detectors connected to the line.
If you select the extraction or alarm levels, pressing this button increases the value.
3.3.4- Silence button (D).
Pressing this button will silence the station's internal buzzer.
If you select the extraction or alarm levels, pressing this button decreases the value.
3.4.1- Standby mode.
The unit is on standby when there is no type of fault or alarm. In this case only the
operation mode light will be on and the rest of the visual and acoustic indicators will
be off.
3.4.2- Alarm mode.
The unit is in alarm mode when any of the areas are in alarm mode. The alarm
indicators are as follows:
Area alarm warning active: This occurs when the alarm level is reached. After 30
•
seconds, the area module activates the alarm output relay and the acoustic warning.
Before the 30 seconds are up, the LED will blink intermittently
Actions in case of alarm:
Once it is in alarm state, you can do the following:
• Press the silence key: This silences the buzzer and activates the silence warning
light.
3.4.3- Extraction mode.
The unit is in extraction state when any extraction is activated, because the preset CO
concentration level for activating this extraction has been reached..
• Green warning light for extraction 1 or 2 a.

3.4- Operating modes

15
GB