Notifier AFP-2800 - Battery Calculations; Quiescent Current Calculation; Alarm Current Calculation; Battery Capacity Requirements

Appendix
AFP-2800/2802 Manual – P/N 11249 11-Mar-08 127
8.10 BATTERY CALCULATIONS:
The following tables and formulas can be used for calculating battery capacity required as per AS4428.
The size of the power supply / battery charger, and capacity of the batteries required will depend on the
installation and must be calculated using the following table and formulas.
8
8
.
.
1
1
0
0
.
.
1
1
Q
Q
U
U
I
I
E
E
S
S
C
C
E
E
N
N
T
T
C
C
U
U
R
R
R
R
E
E
N
N
T
T
C
C
A
A
L
L
C
C
U
U
L
L
A
A
T
T
I
I
O
O
N
N
:
:
Item Qty Current Each (Amps) Sub Total (Amps)
Main Control Panel 1 0.220 0.220
Loop Interface Module 0.025
LCM/LEM Pairs (5 max) 0.200
Fan Control Modules 0.055
AZM8 Modules 0.090
Other Quiescent load
Total Quiescent Current (Q)
8
8
.
.
1
1
0
0
.
.
2
2
A
A
L
L
A
A
R
R
M
M
C
C
U
U
R
R
R
R
E
E
N
N
T
T
C
C
A
A
L
L
C
C
U
U
L
L
A
A
T
T
I
I
O
O
N
N
:
:
Item Qty Current Each (Amps) Sub Total (Amps)
Main Control Panel 1 0.220 0.210
Loop Interface Module 0.025
LCM/LEM Pairs (5 max) 0.200
Fan Control Module (In Alarm) 0.130
Fan Control Module (Quiescent) 0.055
AZM8 Modules (In Alarm) 0.155
AZM8 Modules (Quiescent) 0.090
Bells
Analog Points In Alarm/Activated
Other Quiescent Load
Other Alarm Load
Total Alarm Current (A)
8
8
.
.
1
1
0
0
.
.
3
3
B
B
A
A
T
T
T
T
E
E
R
R
Y
Y
C
C
A
A
P
P
A
A
C
C
I
I
T
T
Y
Y
R
R
E
E
Q
Q
U
U
I
I
R
R
E
E
M
M
E
E
N
N
T
T
S
S
:
:
Battery Capacity (Amp Hour) = ( (Q x 24) + (2 x (A x 0.5)) ) x 1.25
8
8
.
.
1
1
0
0
.
.
4
4
P
P
O
O
W
W
E
E
R
R
S
S
U
U
P
P
P
P
L
L
Y
Y
C
C
A
A
P
P
A
A
C
C
I
I
T
T
Y
Y
R
R
E
E
Q
Q
U
U
I
I
R
R
E
E
M
M
E
E
N
N
T
T
S
S
:
:
(Q X 5) (A x 0.5)
Power Supply Size (Amps) = A + (
24
+
24
)
X 1.1
Note: When annunciators or Field Modules are powered from external power supplies, use a separate conductor to
connect the main power supply common terminal (-0V) to the remote power supplies common terminal (-0V).