User Manual

www.N2KB.nl page 13
19 W IRING & CABLE SPECIFICATIONS:
 There is NO need for shielded cable
 Use a pair twisted cable, this strength the protection against electrical or magnetic field.
 Minimal solid copper core diameter, extinguisher line cable <50 meters length 1,0 mm² (AWG 18)
 Minimal solid copper core diameter, extinguisher line cable >50 meters length 1,5 mm² (AWG 16)
 Minimal solid copper core diameter, fire detection cables 0,5mm² (AWG 20)
 Maximum solid copper core diameter other cables 1,0mm² (AWG 18)
 Maximum conductor loop resistance extinguisher line cable is 24 Ω/km.
 Maximum cable length of the fire zone cables is 50 meters
 Maximum cable length of the cable from NANO to ETB is 30 meters
 The total cable length of all extinguishers together is max 100 meters in total
20 T ECHNICAL SPECIFICATION
Environment
Ambient Temperature Range -25 to +55 degrees Celsius
Dust and water rating IP65
Compass safe distance minimum 50 mm
Power related specification
Input voltage main and emergency battery 12/24 VDC +/-30%
Maximum power usage 1 Watt quiescent 5 Watt in alarm
Maximum contact rate relays 30 VDC/1A
Voltage fire zone 15 Vdc
Limited alarm current fire detectors 60 mA
Aerosol extinguisher output specification
Maximum Stat-X extinguisher count 5 connected on ETB max 100 meter cable
Maximum Stat-X extinguisher count 7 connected without ETB max 100 meter cable
Extinguisher release current 1,3A
Extinguisher release pulse length 50 ms
Solenoid extinguisher output specification
End of line component 2 x back - EMF diodes 1N4004 or equal
Maximum number solenoids 1
Maximum coil resistance 25 to 200 ohms
Maximum current 1 A
Voltage 24Vdc
Extinguisher release pulse length 8 seconds
Detection zone, hold and extinguishing release inputs
Normal state > 8 kΩ < 12 kΩ
Alarm load < 100 Ω >1.2 kΩ
Zone fault thresholds < 100 Ω I > 1.2 kΩ < 8 kΩ I > 12 kΩ
Alarm resistant 470 Ω
End of line resistant 10 kΩ