Detcon SW-AV1-N4 User Manual

DETCON MODEL SW-AV2-N4

NEMA4, Wireless Alarm Station with DB3 Horn

Operator’s Installation and Instruction Manual

Covers SW-AV2-N4

DETCON, Inc.

4055 Technology Forest Dr. Suite 100,

The Woodlands, Texas 77387

Ph.281.367.4100 / Fax [phone]

www.detcon.com

April 11, 2014 • Document #4489 • Revision 0.0

SW-AV1-N4

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Table of Contents

1.0 Description................................................................................................................................................ 1

1.1 Strobe ................................................................................................................................................... 1

1.2 Horn...................................................................................................................................................... 2

1.3 Smart Battery Pack............................................................................................................................... 2

1.4 RXT Series Wireless Transceivers....................................................................................................... 2

1.5 RL4 Relay Module............................................................................................................................... 3

2.0 Installation................................................................................................................................................ 4

3.0 Operation.................................................................................................................................................. 7

4.0 Parts List...................................................................................................................................................8

5.0 Specifications............................................................................................................................................ 8

6.0 Warranty.................................................................................................................................................. 8

7.0 Revision Log............................................................................................................................................. 8

Table of Figures

Figure 1 Basic N4 Wireless Alarm Station .......................................................................................................... 1

Figure 2 Strobe..................................................................................................................................................... 1

Figure 3 Horn ....................................................................................................................................................... 2

Figure 4 RXT Transceiver.................................................................................................................................... 3

Figure 5 RL4 Module........................................................................................................................................... 3

Figure 6 Dimensional........................................................................................................................................... 4

Figure 7 AC Terminals......................................................................................................................................... 5

Figure 8 Unit Wiring........................................................................................................................................... 6

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Shipping Address: 4055 TechnologyForest Suite 100, The Woodlands Texas 77381

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Phone: [phone] • Fax:[phone] • www.detcon.com • [e-mail]

SW-AV1-N4 I.M. iv

SW-AV1-N4

1.0 Description

The Detcon SW-AV1-N4 Alarm Station is a wireless, AC powered alarm station with battery backup. The
unit is designed to meet NEMA4 water tight, dust tight requirements.

Figure 1 Basic N4 Wireless Alarm Station

The alarm station can be positioned almost anywhere with only the need for an AC Power Source.
Communication is performed via the Detcon RXT-320 series transceiver. Access to the unit is only necessary
for battery maintenance or exchange. The unit consists of a 15V Power Supply, a 12V 2900mAh battery, an
RL4 I/O Module for alarm control, a transceiver for network communication, a Strobe, and a Horn.

1.1 Strobe

The alarm station strobe is configured with choice of dome colors such as amber, blue, clear, green, magenta,
or red. The strobes are rated NEMA4 and utilize a Strobe Guard, and gasket to complete the NEMA4 rating.
The strobes produce 2.2 joules of energy while drawing relatively low current and have a flash rate of 60~80
per second.

5.65

3.4

Figure 2 Strobe

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SW-AV1-N4

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.

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RF Connector

RF Channel
Selector Switch

SW-AV1-N4

MSD

LSD

Modbus
Address
Switches

Figure 4 RXT Transceiver

The radio module is housed in a black ABS box mounted inside the alarm station enclosure. The package
includes two PCAs mounted inside the black ABS box (radio PCA and Smart battery charging PCA). The
battery PCA includes circuitry to safely recharge the battery from a 24VDC input and a fuel gauge circuit to
monitor the charge remainingin the battery.

The radio PCA includes a 2.4Ghz radio and a rotary switch for setting the RF channel of the system (Figure 4).
Use a small screwdriver to rotate the switch until the arrow points to the desired RF channel number (16
channels available, 0h-Fh).

NOTE

All devices within the network must be on the same RF channel to operate correctly.

Each radio module is required to have a unique Modbus™ address. These addresses typically start at 01h and
continue sequentially for each Alarm Station in the gas detection system. The radio PCA includes a pair of
rotary switches to set this address (Figure 4). Refer to the Controller Manual for more information.

1.5 RL4 Relay Module

The alarm station utilizes the Detcon RL4 I/O Module to control the alarms (Figure 5). The RL4 is required to
have a unique Modbus™ address. These addresses typically start at 80h and continue sequentially for each
Alarm Station in the gas detection system. Refer to the Controller Manual for more information. The alarm
station is wired for proper operation of Alarm 1 and Alarm 2, with Alarm 1 wired to the Strobe, and Alarm 2
wired to the Horn.

Relay 4
Relay 3

Relay 1
Relay 2

NC CNO

NC CNO

MSD

LSD

COMM

M
S
D

L
S
D

RELAY

C NCNO

C NCNO

Fault
Alarm 3

Modbus

Address

Switches

Alarm 1
Alarm 2

Figure 5 RL4 Module

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SW-AV1-N4

2.0 Installation

NOTE: The wireless alarm station is a precision instrument and care should be taken when handling it.

1. The location for mounting the wireless alarm station should be carefully selected. Occasional access
to the unit will be necessary for battery replacement and maintenance. Mount the unit securely on a
wall or flat vertical surface using the provided mounting holes (hardware not provided).

33.25"

12.75"

13.75"

Ø0.312"

8"

11.85"

Mounting

Holes

11.4"

Figure 6 Dimensional

6.8"

2. The Battery pack for the unit is shipped separately, and should be installed before AC power is
applied. Unpack the battery pack and inspect it to ensure that there is no physical damage to the pack.
Locate the battery bracket and remove the bracket (remove the four 6-32 screws).

Figure 7 Battery Pack and Bracket

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3. Place the battery in the bracket, and re-install the bracket in the unit, securing it with the 6-32 screws
removed earlier. Locate the small plug from the battery bracket, and plug it into the receptacle from

the transceiver.

Figure 8 Battery Connections

4. Terminal Blocks are provided for AC connection to the Unit. The power supply is rated for
110~220VAC, 50~60Hz operation. Connect the incoming AC power to the terminals labeled ‘VAC
(L1)’, ‘NEU (L2)’, and ‘GROUND’.

VAC (L1)

NEU (L2)

GROUND

Figure 9 AC Terminals

5. The unit RXT-320 should be set to the correct RF Channel, and Modbus™ address for the alarm
station to communicate with the network. The RL4 Module should also have the correct Modbus™
address set for the RL4 to communicate properly with the controller.

6. When all connections have been made, and the RXT-320 Modbus™ and RF Channel have been
properly set, apply power to the unit.

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Red

Black
White

Blue

Red

Black

TB1-J1

SW-AV1-N4

Strobe

White

Blue

Black

Red

White

Black

Black

White

COMM

S B A-+

M
S
D

L
S
D

RELAY

RXT-320 Transceiver

Power Supply

White

Black

Green

Black

Black

Black

VAC (L1)

NEU (L2)

ADD 1

COM

NO

Red

Red

Horn

Red

ADD 2

COM

NO

NC

NC

Red

Red

Red

Black

Black

Black

Red

White

Red

Black

Black

Battery Pack

GROUND

Figure 10 Unit Wiring

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SW-AV1-N4

4

Continuous at 2850 Hz

11100

10

Int. Tone of 970 Hz at 1 Hz

10110

11

Alt. Tones 800/970 Hz at 7/8 Hz

10101

12

Int. Tone at 2850 Hz at 1Hz

10100

18

Int. 660 Hz 6.5 sec on 13 sec off

01110

Swedish Fire Alarm

19

Continuous 660 Hz

01101

Swedish Fire Alarm

20

Alt 554/440 Hz at 1 Hz

01100

Swedish Fire Alarm

21

Int. 660 Hz at 7/8 Hz

01011

Swedish Fire Alarm

22

Int. 2850 Hz 150 ms on 100 ms off

01010

23

01001

24

01000

25

00111

26

00110

27

Int. 3100 Hz 0.32s on / 0.68s off

00101

28

0010

0

29

00011

30

00010

31

00001

32

00000

3.0 Operation

The SW-AV1-N4 Wireless Alarm Stations provides a strobe and a horn. The wireless alarm station is set to
respond to alarms from the controlling unit via the RXT-320 transceiver. The controller/wireless network has
independent control over the strobes and the Horn, and they will be activated when the appropriate alarm is
activated, via the RL4 Module.

The unit needs to have both the Transceiver and the RL4 configured before the unit will operate properly. To
do this the RL4 Modbus™ address must correspond to the setting of the controller, and the transceiver address
must be set properly for the transceiver to be recognized on the network. Refer to the Controller Manual for
more information.

The horn has up to 32 possible settings, for use in different configurations. The default settings of the horn are
factory set. To change the setting of the horn, remove the rear end of the horn, and set the dip switches
according to the Sound Signals Table.

Table 1 Sound Signals

TONE FREQ/DESCRIPTION

1 Alt Tones 800/970 Hz at 1/4 sec 11111
2 Sweeping 800/970 Hz at 7Hz 11110 Fast Sweep(LF)

3

Sweeping 800/1000 Hz at 1 Hz

SWITCH TONE

11101

Med Sweep(LF)

5

Sweeping 2400-2850 Hz at 7 Hz

6

Sweeping 2400-2850 Hz at 1 Hz

7
8
9 Alt. Tones 2400/2850 Hz at 2 Hz 10111

13 970Hz at 1/4 sec on 1 sec off 10011
14 Continuous at 970 Hz 10010
15 554Hz for 100ms / 440 Hz for 400ms 10001 French Fire Sound
16 Int. 660 Hz 150 ms on 150 ms off 10000 Swedish Fire Alarm
17 Int. 660 Hz 1.8 sec on 1.8 sec off 01111 Swedish Fire Alarm

Sweep 1200-500 Hz at 1 Hz

Sweep 800-970 Hz at 50 Hz

Sweep 2400-2850 Hz at 50 Hz

3 970Hz pulses 0.5on/0.5off, 1.5 off

3 2850Hz pulses 0.5on/0.5off, 1.5 off

Slow Whoop

11011
11010
11001
11000 Din Tone

Fast Sweep

Slow Whoop

Back-Up Alarm(LF)

Back Up Alarm(HF)

Pelican Crossing

Low Freq. Buzz

High Freq. Buzz

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Spare/Customer Tone
Spare/Customer Tone
Spare/Customer Tone
Spare/Customer Tone
Spare/Customer Tone

4.0 Parts List

Detcon Part # Description

354-4900x6-024 12-80VDC Strobe (x represents color of lamp)

Strobe colors: Red (2), Amber (4), Green (5), Blue (6), Magenta (7), and Clear (9)
356-DB3007-024 MEDC DB3 Horn – 12-48VDC
360-3S6PFP-290 Battery Pack, LI Ion 12V Flat Pack
360-STP060-024 24VDC 2.5Amp Din-Rail Power Supply
975-041400-000 Model RL4 Addressable Relay Module
976-00132D-CHR RXT-320 Transceiver w Battery Charger

5.0 Specifications

Strobe

Dome Colors Amber / Blue / Clear / Green / Red / Magenta
Operating Current 0.4A @ 12VDC
Flash Rate/Minute 60~80
Output 50 Candela eff.
Lamp Source 5001 Xenon Strobe Lamp

Horn

Operating Current 0.760A @ 12VDC
dB Output 93~118db @ 1meter (Dependant on signal tone)
Duty Cycle Not rated for continuous duty (5 minute duty cycle)

Alarm Unit

Operating Current 1.2A Max
Operating Temperature -20ºC to 60ºC
Voltage 12VDC
Dimensions 14”H X 12”W X 6.5”D

SW-AV1-N4

6.0 Warranty

Detcon Inc., as manufacturer, warrants under intended normal use each new SW-AV1-DV2, SW-A1-DV2, and
SW-V1-DV2 Alarm station to be free from defects in material and workmanship for a period of one year. The
warranty period begins from the date of shipment to the original purchaser and ends one year thereafter. All
warranties and service policies are FOB the Detcon Inc. facility located in The Woodlands, Texas.

7.0 Revision Log

Revision Date Changes made Approval

0.0 04/11/14 Initial Release LU

Shipping Address: 4055 TechnologyForest Suite 100, The Woodlands Texas 77381

Mailing Address: P.O. Box 8067, The Woodlands Texas 77387-8067

Phone: [phone] • Fax:[phone] • www.detcon.com • [e-mail]

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