EMS MK153 Current Consumption Fire Cell Instruction Manual
- June 6, 2024
- EMS
Table of Contents
EMS MK153 Current Consumption Fire Cell
Introduction
This document outlines the current consumption of the FireCell equipment
range.
It is the responsibility of the installer/system designer to carry out
calculations for the entire installation to ensure supply and battery backup
requirements are compliant with local codes of practice.
Annex D of BS5839 for example, outlines the following method for calculating
standby battery capacity:
D.1 Valve regulated lead acid batteries
D.1.1 The minimum capacity of valve regulated lead acid batteries should be
calculated in accordance with the following formula:
Cmin = 1.25 (T1 I1 + D I2/2)
where:
Cmin = minimum capacity of the battery when new at the 20 h discharge rate and
at 20 °C in ampere hours;
T1 = total battery standby period in hours;
I1 = total battery standby load in amperes;
I2 = total battery alarm load in amperes;
D = a derating factor.
D.1.2 Where Cmin/20 will be equal to or greater than I2, it can be assumed
that D = 1. When Cmin/20 is less than I2, the value of D should either be
based on the battery manufacturer’s data or should be 1.75.
D.1.3 In practice, Cmin is unlikely to correspond exactly to an available
battery capacity and therefore the next highest available capacity size should
be used.
D.2 Batteries other than valve-regulated lead acid batteries
The minimum capacity of batteries, other than valve regulated lead acid batteries, should be determined by consultation with the battery manufacturer and should take into account the standby load, the alarm load, any required derating to take account of the higher current drawn in the alarm condition and a derating factor to take account of battery ageing during the anticipated life of the battery.
Note : check your local codes of practice as calculation methodology may vary.
Syncro/ Syncro AS Control Panels
Syncro AS 1 Loop Analogue Addressable Fire Panel
- Quiescent current 0.13A
- Alarm current 0.3A
- Max battery capacity 12V 9Ah
Syncro AS 2 Loop Analogue Addressable Fire Panel
- Quiescent current 0.195A
- Alarm current 0.37A
- Max battery capacity 12V 9Ah
Syncro 2 Loop Analogue Addressable Fire Panel
- Quiescent current 0.309A
- Alarm current 0.535A
- Max battery capacity 12V 12Ah*
EMS part no FC-012-015 (12V 15Ah battery) can also be used as its physical dimensions are that of a 12Ah battery
Syncro 4 Loop Analogue Addressable Fire Panel
- Quiescent current 0.431A
- Alarm current 0.655A
- Max battery capacity 12Ah*
EMS part no FC-012-015 (12V 15Ah battery) can also be used as its physical dimensions are that of a 12Ah battery
Syncro/Syncro AS Control Panel Networking
Network Card for wired or wireless networks
- 1 required per Fire Control Panel
- Syncro AS Panel 0.06A
- Syncro Panel 0.08A
FireCell RNC (Radio Network Communicator)
- 1 required per Fire Control Panel
- Current consumption 0.027A
Taktis Fire Control Panels
Taktis 2 Loop Analogue Addressable Fire Panel
- Quiescent current 0.38A
- Alarm current 0.53A
- Max battery capacity 12V 26Ah
Taktis Additional 2 Loop Card – Max 8 loop panel capacity
Current Consumption 0.08A *
- Note maximum 3x additional 2 loop cards can be added to the 2 loop panel
Taktis Network Module for wired or wireless networks
1 required per Taktis Fire Control Panel
Current consumption 0.059A
Taktis RNC (Radio Network Communicator)
1 required per Taktis Fire Control Panel
Current consumption 0.035A
Wireless Infrastructure
4 Loop Radio Hub
1 required per Fire Control Panel
Current consumption
Loop 1: 0.027A (typical) / 0.063A (max.)
Loops 2 to 4: 0.004A (per each connected loop)
Fusion RLM (Radio Loop Module)
Up to five per loop using FireCell panel subject to cable specification.
Current consumption 0.017A (typical)
0.091A (max.)
www.emsgroup.co.uk
+44 (0) 1227 369570
[email protected]
The information contained within this literature is correct at time of publishing. EMS reserves the right to change any information regarding products as part of its continual development enhancing new technology and reliability. EMS advises that any product literature issue numbers are checked with its head oce prior to any formal specication being written.