LaserPLUS Product Guide VESDA
®
24
Table 7 - Calculating the size of backup battery
Normal loads @ 24 V DC Full alarm load @ 24 V DC
Equipment Load mA Qty. Total Load mA Qty. Total
Detector @ 3000rpm 240 260
Detector @ 3500rpm 240 260
Detector @ 4000rpm
270 290
Detector @ 4200rpm 280 300
Integral Display 60 110
Integral Programmer 45
(backlight off)
60
(backlight on)
Remote Display 60 110
Remote Programmer 50
(backlight off)
50
(backlight on)
Hand-held
Programmer
70
(backlight off)
70
(backlight on)
Systems relay
Module
60 105
Remote termination
card - 7 relays
60 105
Other 24V loads
Tota l
mA
Total
mA
XX
Standby Hours Alarm Hours
=
Standby Capacity Alarm Capacity
Total Capacity =
Standby + Alarm
Divided by 1000 for
Standby Capacity
Multiply by battery
factor X1.25