Technical information

Page 87
The MINERVA FIRECRYER is an electronic
sounder, which provides as default the same
electronic sound as the MINERVA Besson
Banshees. In addition, the FIRECRYER provides
up to 4 predefined voice messages, which can be
synchronised across a zone of sounders. The
FIRECRYER offers an excellent service upgrade
opportunity in the UK for systems installed to
BS5839pt1 and may also provide opportunities
elsewhere.
Key Features
Single and Four Message Variants
A single message can confirm that the electronic
sound is a fire alarm warning and differentiate it
from other electronic sounders used in an
environment. With four messages fire tests can be
easily differentiated from alert and evacuate
messages.
Two Wire Connection
The FIRECRYER uses a standard 2 wire 24V d.c.
connection to carry power, message switching
and message synchronisation. This enables a
quick and easy upgrade to existing bells and
sounders
MINERVA Banshee Compatible
The electronic alarm sound and mechanics of the
FIRECRYER are the same as other Banshee
sounders in the range. This allows them to be
mixed with other sounders in a zone. It also
means that existing Banshees can be very quickly
upgraded to FIRECRYERs.
Synchronised and Unsynchronised Variants
Unsynchronised versions provide fast retrofit and
are acceptable if only one FIRECRYER is used
per area to enhance the electronic sounders.
Synchronised variants only require a synchro
board adding at the fire panel and then allow all
FIRECRYERs on two sounder circuits to be
synchronised.
Low Power
The FIRECRYER takes marginally more power
than an equivalent electronic sounder. This
enables voice enhanced sounders to be offered
without the high additional cost of large battery
backups.
Standard Products
The FIRECRYER is available in 3 models
(unsynchronised, synchronised and 4 message
synchronised) in ADT branding with predefined
English messages and 100dBA fast sweep alert
sound to comply with BS5839Pt1. Other variants
with different branding, different language
messages and different tones are available upon
request.
Technical Specification
Dimensions : IP45 - 92dia 61.3 Hmm
IP66 - 92dia 85.5 Hmm
Operating Voltage: Nominally 24Vd.c.
Min. 18Vd.c. Max. 30Vd.c.
Current Consumption: Average 19mA
Min. 10mA
Max.23mA
(Subject to message)
(at max. output)
Sound output: Fast sweep - 100dBA
Voice message: 97dBA approx
Volume Control Via variable resistor with 20dB
range from maximum
Polarity D.C. reverse polarity protection
Operating Temp: -5°C to +55°C
Humidity: 90% relative humidity (non-
condensing)
Weatherproofing: Standard base - IP45
Special base - IP66
Housing Material: Red Flame-retardant ABS
Standard Messages
AK - “Fire Emergency, Please remain calm and
evacuate the building immediately”
AB - “This is a fire alert. This is a fire alert. Await
further instructions. Await further instructions.”
SP - “This is an ADT fire alarm test. No action
required”
AE - “Fire Alarm Test Now Complete”
Product Codes
576.501.037
MFC4DEMO Firecryer 4 message demo box
576.501.100
MFC1SB Firecryer single message synch board
for use with single message synchronised
MINERVA Firecryers
576.501.101
MFC4SB Firecryer 4 message synch board for
use with 4 message MINERVA Firecryers
576.501.103
MFC4ENC 4 message synch board enclosure
with 3 position keyswitch for use with 576.501.101
576.501.042
Banshee IP66 backbox for Loop powered
Banshee and Firecryers
Firecryer
MINERVA Firecryer - Voice Enhanced Sounders
Product Codes Product Message Brand Synchronised
Reference 1 2 3 4
576.501.034.A MFC1SEA AK - - - ADT Yes
576.501.035.A MFC4SUA AK AB SP AE ADT Yes
576.501.036.A MFC1EA AK - - - ADT No
576.501.104.A *MFC4SCA Customer Defined ADT Yes
* For recording of special messages there is a charge. This can be ordered under product code
576.501.105 MFC-CM. This includes the supply of a different timer chip for MFC4SB synchronisation
board.
Sync Board MFC 1SB MFC4SB
PCB Dimensions 75.5 x 100mm 138 x 100mm
EMC/RFI CE Marked
Operating Temp -5 to +55°C
Operating Voltage NA 18-30V d.c.
Quiescent Current NA 6mA (Max)
Message Mode 28mA
Sounder Circuit 2 x 500mA Fused