Addressable Control Panel for CO and NO
2
ZafirCO
FIRE PROTECTION MANUFACTURER
Ctra. de Molins de Rei a Rubí, Km. 8,4 - 08191 RUBÍ (Barcelona) ESPAÑA.
Tlf.: +34 935 862 690 - Fax:+34 936 999 261 - [email protected] - www.cofem.com
29
Figure 2: Operation scheme of DVB control panels
Parameter
Value
Margin
Ventilation level 1
50 ppm CO
1 ppm NO
2
5-300 ppm (CO)
0,1-20 ppm (NO
2
)
Delay to activation of ventilation 1
4 min
0 - 10 min
Delay to stop of ventilation 1
4 min
0 - 10 min
Ventilation level 2
100 ppm CO
3 ppm NO
2
Nivel Vent. 1 - 300 ppm (CO)
Nivel Vent. 1 - 20 pm (NO
2
)
Delay to activation of ventilation 2
4 min
0 - 10 min
Delay to stop of ventilation 2
4 min
0 - 10 min
Alarm level
200 ppm CO
5 ppm NO
2
Nivel Vent. 2 - 300 ppm (CO)
Nivel Vent. 2 - 20 ppm (NO
2
)
Delay of activation of alarm
1 min
0 - 5 min
Delay to stop of alarm
1 min
0 - 5 min
Average concentration
0 min (instantaneous)
0 - 60 min
Figure 3: Configurable parameters
If the concentration of toxic gas in that zone falls below the concentration level of ventilation 1,
ventilation of the zone will stop only after the lapse of the delay time to stop of ventilation 1.
By contrast (only DVB models), if the concentration in that zone continues to increase,
ventilation 2 zone will be activated only after be above this level more than the delay time to
activation of ventilation 2.
