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Extinguishing Panel - INSTRUCTION MANUAL
Battery Calculation
Here is the current consumption of the Premier EX8 panels in various conditions:-
Control Panel
Model
Premier EX8 Panel
Sample Calculation
A Premier EX8 4 zone panel has the following items connected:-
Zone 1: 8 x Optical detector
Zone 2: 7 x Optical detector
Zone 3: 3 x MCP, 9 x Optical, 1 x heat detector
Zone 4: 1 x MCP, 10 x Optical, 3 x heat detector
First stage Sounder CCT : 10 x Maxitone sounder
First stage Sounder CCT: 1 x Megatone sounder
ITEM
PREMIER EX8
MCP
OPTICAL
HEAT
MAXITONE SOUNDER
Megatone Sounder
To calculate the required battery backup required, we use the equation:-
Battery Size (Standby time in Amp Hours) = 1.25 x [(T
Where:
T
= Maximum time in hours required for the alarm [½ hour is most common time]
ALM
I
= Total Alarm Current in amps for all alarm devices connected to the alarm circuits
ALM
T
= Standby time in hours for the system after mains failure [normally 24, 48 or 72 hr]
SBY
I
= Quiescent current in amps of control panel in fault condition [because of mains failure] PLUS all
SBY
detection zones.
st
Consider a 1
stage alarm
.
I
=
PREMIER EX8 ALM + 10 x MAXITONE
ALM
ALARM + 1 x DETECTOR ALM + 4 x MCP QU
+ 33 x OPT QU + 4 x HT QU
=0.2 + 10x 0.025 + 1x 0.040 + 4x0 + 33x0.0001 +
4x0.00005
=0.2+ 0.25 + 0.04 + 0 + 0.0033 + 0.0002
=0.494 Amps
I
= PREMIER EX8 QU+10xMAXITONE QU + 7 x
SBY
MCP QU + 34 x OPT QU + 4 x HT QU
=0.160+10x0+7x0+34x0.0001+4x0.00005
=0.160 + 0 + 0 + 0.0034 + 0.0002
=0.1636 Amps
Therefore:-
Battery size
= 1.25 X ((0.5x 0.494)+(24x0.1636))
= 1.25 X (0.247 + 3.9264)
= 1.25 x 4.1734
= 5.22 Ah
So 7.0 Ah batteries will be suitable for this
installation
Approved Document No: GLT.MAN-124
Issue : 1
Author: NRPJ
Mains Fail,
Mains Fail,
buzzer
buzzer
sounding
silenced
160mA
140mA
QUIESCENT
160mA
0mA
100uA
50uA
0mA
0mA
Consider a 2
I
ALM
I
SBY
Therefore:-
Battery size
So 7.0 Ah batteries will be suitable for this
installation
Date: 15/11/2007
Mains fail,
panel in
alarm
200mA
ALARM
200mA (350 for 2
40mA
40mA
40mA
25mA
250mA
x I
) + (T
x I
)]
ALM
ALM
SBY
SBY
nd
stage alarm
nd
=
as first stage, Plus 2
stage sounders, Plus Bottle
=0.494 +250 +1A for 5 min max (say = 0 .167
equivalent)
=0.911Amps
= as first stage
=0.1636 Amps
= 1.25 X ((0.5x 0.911)+(24x0.1636))
= 1.25 X (0.4555 + 3.9264)
= 1.25 x 4.3819
= 5.477 Ah
Mains fail,
nd
panel in 2
stage alarm
350mA(420pk)
nd
stage)
PAGE 25
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