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Table 3 Battery-size calculation worksheet
A.
Model PS1000 internal current consumption
(standby)
0.05 A
B.
Load current consumption (standby)
(standby)
A
C.
Standby time required
(hours)
H
D.
Battery capacity required for standby
(A + B) * C
Ah
E. Model PS1000 internal power consumption
(alarm)
0.05 A
F. Load current consumption
(alarm)
A
G. Alarm duration (hours, 15 min = 0.2 hour)
(alarm)
H
H. Battery capacity required for alarm
(E + F) * G
Ah
I. Total calculated battery capacity
D + H
Ah
J. Battery capacity required
I * 1.8 (safety factor)
Ah
Notes: The Model PS1000 is designed to work with batteries up to 65 Ah.
Line I must not exceed 36 Ah. To keep Line I at or under 36 Ah, either reduce standby current consumption
(Line A) or the standby time (Line C).
.
To determine actual battery size, round line J to the nearest larger standard battery size,
(e.g., 3.5 Ah = 4.0 Ah).