Altronix AL600ULMR Installation Instructions User Manual

Page 14

- 14 -

M series

AL1024ULM Battery size calculation worksheet.

A. AL1024ULM internal current consumption

(standby)

_______________ .13 A

B. Load current consumption

(standby)

_______________ A

C. Standby time required (hours)

_______________ H

D. Battery capacity required for standby

(A+B)*C

_______________ AH

E. AL1024ULM internal power consumption

(Alarm)

_______________ .13 A

F. Load current consumption

(Alarm)

_______________ A

G. Alarm duration (Hours, example:15 Min=.25 Hour) (Alarm)

_______________ H

H. Battery capacity required for Alarm

(E+F)*G

_______________ AH0

I. Total calculated battery capacity

D+H

_______________ AH

J. Battery capacity required

I*1.8 (safety factor)

_______________ AH

Note: AL1024ULM power supply is designed to work with batteries up to 65AH. Please note, line [I] must not exceeds
36AH. You have to reduce either standby current consumption or standby time in order to comply with requirement.

To determine actual battery size please round line [J] to the nearest larger standard battery size.