Napco Security Technologies WI1501A - Manual (Page 36)

Freedom F-64 Installation Instructions L
NAPCO Security Systems
WI1501A 9/06

Page 36
STANDBY-BATTERY CALCULATION WORKSHEET
Use the procedure given below to determine the required standby battery capacity in Ampere-Hours (AH). Note: It is not totally
accurate to merely multiply the combined standby current (in amperes) by the standby time (in hours) to obtain the battery capacity
(in ampere-hours), since other factors (control-panel charging capabilities, temperature, battery condition, etc.) affect battery
operation. The following calculations will yield the theoretical minimum required capacity.
1. STANDBY CURRENT
STANDBY CURRENT (Amps)
DEVICE QTY EACH TOTAL
F-64 Control Panel 1 X 0.120 = 0.120
GEM-EZM4/8 X 0.050 =
GEM-EZM8 X 0.050 =
RM3008 X 0.040 =
X
X
X
=
TOTAL STANDBY CURRENT
Amps
(1) Alarm current drawn in alarm.
(2) Alarm Time in Hours. Example: For a 15 minute alarm timeout, Alarm Time =
15/60 = 0.25.
2. ALARM CURRENT
ALARM CURRENT (Amps)
DEVICE QTY EACH TOTAL
TOTAL STANDBY CURRENT (from Box 1, above)
F-64 Panel (1) 1 X 0.100 = 0.100
BELLS X =
STROBES X =
HORNS / STROBES X =
X =
X =
Amps
TOTAL ALARM CURRENT
(1) Standby Time in Hours.
(Box 1)
X
Hours
=
AH.
(Standby Time) (1) (Box 2)
X
Hours
=
AH.
(Alarm Time) (2) (Box 3)
MINIMUM REQUIRED BATTERY CAPACITY = BOX 2 + BOX
AH.
Stan
db
y-
Batter
y Ca
lculation Worksheet