RISCO Group GT480 User Manual
Page 26
G
G
G
G
T
T
T
T
4
4
4
4
8
8
8
8
0
0
0
0
II
II
n
n
n
n
s
s
s
s
tt
tt
a
a
a
a
ll
ll
ll
ll
a
a
a
a
tt
tt
ii
ii
o
o
o
o
n
n
n
n
M
M
M
M
a
a
a
a
n
n
n
n
u
u
u
u
a
a
a
a
ll
ll
*Power Supply Rating
It should be noted that the eurösec GT480 has 1 Amp available for the full system. However,
for the purpose of compliance to EN and PD6662 standard, the capacities of the power
supply have to be specified differently.
For a Grade 2 system you have 72 hours to charge the battery. With the GT480 Control
Panel, 90mA is available for battery charging. This defines a theoretical maximum standby
battery capacity of 8.0Ah and a maximum of 666mA available for system power.
If a smaller capacity battery is used then the rating has to be reduced accordingly.
For example: If a 7Ah battery is used it will recharge in 72 Hrs and will theoretically provide
910mA (1000-90mA) for the system. However, the supply rating for that system under
PD6662 is still 7.0Ah/12hrs = 583mA.
Sounders, detectors and other auxiliary items should be included when calculating current
drawn by the system. Any damage caused through overloading the Control Panel Supply will
not be covered by the warranty. We recommend that additional power supplies are used to
supply detectors on long cable runs.
P
P
P
P
a
a
a
a
g
g
g
g
e
e
e
e
2
2
2
2
3
3
3
3
Customer Name
Customer Address
Tel No:
Fax No:
Installation Date
Installing Engineer(s)
Control Panel Location
RKP Location(s)
Zone 1 Location
Zone 5 Location
Zone 2 Location
Zone 6 Location
Zone 3 Location
Zone 7 Location
Zone 4 Location
Zone 8 Location
GardTec 480 ENG PR5832 Rev 115IN480IM B A5booklet.qxd 18/07/2007 20:35 Page 23