Matrix 424, 832, 832+ Installation Manual
RINS918-6 Page 49
4.4 Battery Capacity Calculations
Maximum Battery recharge time must not exceed 72 hours to satisfy EN50131-6.
In the event of mains failure
EN50131-1:2006+A1:2009 specifies
that a stand-by battery should be
able to power the system for a non-
alarmed period of 12 hours,
providin
uthority specified maximum bell
alarm period is 15 minutes.
EXAMPLE
CALCULATION
Non-alarmed condition
11 hrs,45 mins=11.75 Hrs
Alarmed condition
15mins=0.25Hrs
Control panel 0.200A 0.200A
Keypad 0.050A 0.050A
8 PIRs (15mA each) 0.120A 0.120A
External sounder 0.050A 0.350A
External strobe 0.000A 0.150A
Total current 0.420A 0.870A
Amp/hour capacity
0.420A x 11.75h =
4.94Ah
0.870A x 0.25h =
0.22Ah
Minimum battery capacity: 3.22Ah + 0.29Ah = 3.51Ah
WARNING: Consult each product’s instructions for the actual current values.
When all parts are working normally, this equipment in combination with the PSTN and suitable ARC
equipment will meet the requirements of ATS2.
For electrical products sold within the European
Community. At the end of the electrical
products life, it should not be disposed of
with household waste. Please recycle where
facilities exist. Check with your Local Authority
or retailer for recycling advice in your country.
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