PREMIER QUATRO INSTALLATION MANUAL
Software Versions: PANEL 1.52 & LOOP CARD 2.0
Doc No. GLT.MAN-134
PAGE 50
Issue: 1.33 Author: GW/NJ Date: 14/1/2013
I
ALM
= Total Alarm Current in amps
I
ALM
-SND = Alarm Current of Sounders in amps
T
SBY
= Standby time in hours for the system after mains failure [normally 24, 48 or 72 hr]
I
QP
= Quiescent current in amps of control panel in fault condition [because of mains failure]
IAP
= Alarm current in amps of control panel
IQL
= Quiescent current in amps of all loop devices.
Typical Example:
A system comprises of a 1 Loop Quatro panel, with 80 Fyreye Extra Addressable Optical Smoke Detectors, 15 Zeta Addressable
Manual Call Points, 20 Zeta Addressable Securetone 2 Sounders and the required standby is 24 hours. It will need to operate in
alarm for ½ hour.
Calculate the battery size required.
T
ALM
= 0.5 Hr
I
ALM-SND
= 20 x 0.004 =0.08A
T
SBY
= 24 Hr
I
QP
= 0.20A
I
AP
= 0.19A
I
QL
= 80 x 0.00044 + 15 x 0.001 + 20 x 0.0005 = 0.0602A
I
ALM
= I
ALM-SND
+ I
AP
+ I
QL
= 0.08 + 0.19 + 0.0602 = 0.3302
Therefore using the equation:
Battery Size (Standby time in Amp Hours) = 1.25 x [( T
ALM
x I
ALM
) + ( T
SBY
x ( I
QP
+ I
QL
))]
Battery Size (Standby time in Amp Hours) = 1.25 x [(0.5 x 0.33) + (24 x (0.20 + 0.06))]
Battery Size (Standby time in Amp Hours) = 1.25 x [(0.5 x 0.33) + (24 x 0.26)]
Battery Size (Standby time in Amp Hours) = 1.25 x [0.165 + 6.24]
Battery Size (Standby time in Amp Hours) = 1.25 x 6.405
Battery Size (Standby time in Amp Hours) = 8.01 Amp Hours
For a system like this, 2 x 12V sealed lead acid batteries must be used each with a capacity greater than 8.01 Ah. For example,
12Ah
