Detcon SW-AV1-N4 - Manual (Page 6)

SW-AV1-N4
SW-AV1-N4 I.M. Rev.0.0 Page 2 of 8
1.2 Horn
This range of light weight all GRP, flameproof sounders is intended for use in potentially explosive gas and
dust atmospheres and has been designed with high ingress protection to cope with the harsh environmental
conditions found offshore and onshore in the oil, gas and petrochemical industries. The Horn is rated for
C1D2 Groups A, B, C, and D locations, is UL, cUL listed, and ATEX approved. The Horn has the ability to
produce up to 118dBA output.
Figure 3 Horn
1.3 Smart Battery Pack
SmartWireless® Alarm Station is powered by an internal 15VDC Power Supply and a rechargeable Smart
Battery Pack. If there is a loss of AC the battery pack is capable of delivering continuous operation in a no
alarm condition for up to eight weeks. The internal battery pack is recharged by the use of the power supply.
The battery pack consists of rechargeable Lithium-Ion batteries and is equipped with integrated safety
electronics that include fuel gauge, voltage, current and temperature monitoring circuits. This “smart”
circuitry continuously monitors the battery’s condition and reports critical status information to the wireless
transceiver. Improper use of the battery pack may be hazardous to personnel or the environment and will void
the warranty.
1.4 RXT Series Wireless Transceivers
The wireless function of the alarm station is made possible by Detcon’s RXT-320 series wireless transceiver.
They operate at 2.4GHz and conform to non-licensed radio frequency appliance usage around the
world. Wireless network integrity and security is accomplished using direct sequence spread spectrum
wireless mesh technology. Every device in the network is capable of functioning as a router and repeater for
all other devices in the network. This means that subscribers can “hop” through neighboring devices to
communicate with each other thereby widening network access points. This unique and innovative technology
is designed to create a robust network that automatically routes around congestion and line-of-sight obstacles
while improving throughput as subscriber device density increases.