CPG CPG #2561255 manual Current Requirements

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CPG #2561255		FIRELARM 2500 Operating Manual
Table 3-1: Current Requirements.
Module/Device	Standby mA		Alarm mA
2500 with LCD display	170		310*
2500 without LCD display	105		250
CAM (Class A module)	0		25
RALCD (Remote Annunciator)	95		115
ZDACT (Digital Alarm Communicator)	30		50
MBM module	30		15 (250 momentary)
PAM-1 or PAM-2 Relay	15		15
*Includes one zone short circuit current.

Table 3-2: Secondary Power Requirements.

NFPA-72 National Fire Alarm Code			Standby Time		Alarm Time
Local Systems			24 hrs.			5 min.
Auxiliary Systems			60 hrs.			5 min.
Remote Station Systems			60 hrs.			5 min.
Central Station Systems			24 hrs.			5 min.
		Table 3-3: Calculation Table.
1	2	3	4	5		6
Module/Device	Qty.	Standby mA Per Unit	Total Standby	Alarm mA Per Unit		Total Alarm
			Current			Current

Total mA		Total mA
Convert to A	X 0.001	Convert to A	X 0.001
Total A		Total A
Multiply by hours	X	AH for 5 mins.	÷ 12
from table 2
Total Standby AH		Total Alarm AH
		+ Total Standby AH
		Total AH
		Efficiency Factor	÷ 0.85
		Required AH

Select a battery such that the battery’s amp hour rating meets or exceeds the calculated amp hour requirement (44AH maximum).

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