Standby-Battery Calculation Worksheet - Gemini GEM-P9600 Installation Instructions Manual

WI742C 08/00

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
DEVICE QTY
GEM-P9600 1 X
GM-EZM8 X
GEM-RP1CAe2 X
(1) X
GEM-RP1CAe2
GEM-RP2ASe2 X
(2) X
GEM-RP2ASe2
GEM-RP3DGTL X
(4) X
RM3008
X
X
TOTAL STANDBY CURRENT
2. ALARM CURRENT
DEVICE QTY
TOTAL STANDBY CURRENT
(from Box 1, above)
(1)
GEM-P9600
BELLS
STROBES
HORNS / STROBES
TOTAL ALARM CURRENT
(1)
Alarm current drawn in alarm.
(2)
Alarm Time in Hours. Example: For a 15 minute alarm timeout,
Alarm Time = 15/60 = 0.25.
MINIMUM REQUIRED BATTERY CAPACITY = BOX 2 + BOX 3
L
NAPCO Security Systems
STANDBY CURRENT (Amps)
EACH
0.120 =
0.050 =
0.100 =
0.035 =
0.065 =
0.020 =
0.050 =
0.040 =
=
=
(Box 1)
ALARM CURRENT (Amps)
EACH
X 0.100 =
X =
X =
X =
X =
X =
TOTAL
(1)
Backlighting disabled (cut Jumpers W1, W2 & W3).
(2)
Backlighting disabled (cut Jumpers A, B & C).
(3)
Add 0.010A for each energized relay.
(4)
Standby Time in Hours.
X
Amps
(Standby Time)
TOTAL
0.100
X
Amps
(Alarm Time)
X
=
Amps
(4)
(Box 2)
=
Amps
(2)
(Box 3)
GEM-P9600 Installation Instructions
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Page 53
AH.
AH.
AH.