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Appendix b - battery calculation and current draw – Potter PFC-9000 Series User Manual

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79

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.