Appendix b - battery calculation and current draw – Potter PFC-9000 Series User Manual
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PFC-9000 • 5403535 • REV G • 9/08
Appendix B - Battery Calculation and Current Draw
Current Requirement:
Standby (a) ______ Amps. Alarm (B)______ Amps.
Battery Capacity Requirement:
([STANDBY (a) ______ ] X [(24 or 60 Hours) ___ ]) + ([ALARM (B) ______ ] X [%Alarm in Hr.] _____) = (C)
______AH
X 1.20
Total Standby Power ______ AH
* Assuming three Initiating Circuits in alarm.
% Use 0.084 for five minutes of alarm or 0.5 for thirty minutes of alarm as a multiplier figure.
See Appendix C, for other available smoke detectors .
Electronic version available at www.pottersignal.com
POWER REQUIREMENTS (ALL CURRENTS ARE IN MILIAMPERES)
MODEL
NUMBER
DESCRIPTION
QTY
STDBY
TOTAL
STDBY
ALARM
TOTAL
ALARM
PFC-9000
SLA-127P
DLA-254P
ZA-9008
IDC-9004
ARM-9008
UDACT-9100
PR-5000
Main Chassis (12 Amp)
Single Loop Adder
Dual Loop Adder
4 Zone NAC Card
4 Zone NAC Card
8 Relay Circuit Module
Dialer Module
City Tie Module
2-Wire Smoke Detectors
4-Wire Smoke Detectors
APS Photoelectric Smoke Sensor
AHD Heat Sensor
AIS Ionization Smoke Sensor
ADSD-P Duct Detector
ADSD-R Duct Detector with Relay
FRCM-2/-4 Fast Response Contact Module
SOM-4 Supervised Output Module
PSCI Short Circuit Isolator
DRM Dual Relay Module
Alarm LED Current for Analog Devices
Signal Load (bells, horns, and strobes)
Auxiliary Power Supply for Remote Annunciators. Add 150mA for each RA-LCD
and RA-LED32. Add 50mA for each RA-LED48 annunciator.
Total currents (add above currents) then multiply to convert to Amperes
STANDBY
230
35
35
80
35
25
40
35
.390
.350
.350
2
10
.550
.220
.270
.150
x.001
(A)
Alarm
x.001
(B)
230
380
380
50
50
100
150
150
60
300
*0.090
.390
.350
.350
8
55
30
300
150
135
135
10
Do not use batteries with a capacity of less than 17 AH. Using
batteries with a capacity of less than 17 AH may damage the
batteries and panel.