Altronix AL1002ULADA Installatiehandleiding - Pagina 9
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Device
For each device use this formula:
AL1042ULADA
(Current draw from battery)
A
Auxiliary Devices
B
C Notification Appliances Current must not exceed 10 amp (10,000mA)
D Total alarm current
E Total current ratings converted to amperes (line D x 0.001)
F Number of stand-by hours (24 for NFPA 72, Chapter 1, 1-5.2.5).
G Multiply lines E and F.
Alarm sounding period in hours.
H
(For example, 5 minutes = .0833 hours.)
I Multiply lines E and H.
J Add lines G and I.
Multiply line J by 1.30.
K
(30% extra insurance to meet desired performance)
Total ampere - hours required
Units are capable of recharging 36AH battery max. If total ampere - hour required exceeds 36AH,
decrease AUX current to provide enough stand-by time for the application.
AL1042ULADA
Battery Calculation Worksheet
Number of
Devices
This column x This column =
Stand-by:
1
Alarm:
AL1042 Current
Refer to device manual for current ratings.
Alarm/Stand-by
Alarm/Stand-by
Alarm/Stand-by
Auxiliary Devices Current (must not exceed 1 amp)
Refer to device manual for current ratings.
Alarm:
Alarm:
Alarm:
Alarm:
Total alarm AH
Total stand-by and alarm AH
Current per Device
Equals
130mA
300mA
mA
mA
mA
mA
mA
mA
mA
0mA
Total stand-by AH
Stand-by
Alarm
Current
Current
Current per number of devices.
130mA
130mA
mA
mA
mA
0mA
0mA
0mA
0mA
mA
A
H
AH
AH
AH
300mA
300mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
A
H
AH
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