BExS110D Explosion Proof Alarm Horn Sounder Instruction Manual

BExS110D Explosion Proof Alarm Horn Sounder

Product Information: BEx S1 1 0 D and BEx S1 1 0 D-R Sounder
The BEx S1 1 0 D and BEx S1 1 0 D-R Sounders are designed for use in flammable gas and dust atmospheres. These units have a rating label that includes the model number, input voltage, certificate number, Epsilon x equipment group, and category, CE marking notified body number, area classification for gas and dust, dust groupings, IP rating, equipment category, equipment protection level, and ambient temperature range. The sounder is certified to comply with the following standards: EN60079-0:2012+A11:2013 / IEC60079-0:2011 (Ed 6), EN60079-1:2007 / IEC60079-1:2007 (Ed 6), and EN 60079-31:2014 / IEC60079-31:2013 (Ed 2).

Warnings

• Do not open when an explosive atmosphere is present
• Do not open when energized potential electrostatic charging hazard cover bolts class A4-80 use heat-resisting cables and cable

Usage Instructions
The sounder must only be installed by suitably qualified personnel in accordance with the latest issues of the relevant standards: EN60079-14 / IEC60079-14 and EN60079-10-1 / IEC60079-10-1. The installation of the sounder must also be in accordance with any local codes that may apply and should only be carried out by a competent electrical engineer who has the necessary training. Repair of the flame path / flameproof joints is not permitted.

The sounder can be installed in locations with the following conditions:

• Area Classification Gas: Zone 1 or Zone 2
• Temperature Classification: T1, T2, T3, or T4
• Area Classification Dust: Zone 21 or Zone 22
• Dust Groupings: Group IIIA Combustible Dusts, Group IIIB Non-Conductive Dust, or Group IIIC Conductive Dust
• IP Rating: IP66/67 to EN/IEC60529 and IP6X to EN/IEC60079-0, EN/IEC60079-31
• Equipment Category: 2G / 2D
• Equipment Protection Level: Gb / Db
• Ambient Temperature Range:

Special conditions of use include avoiding installation in locations where the equipment may be subjected to external conditions that might cause a build-up of electrostatic charges on non-conducting surfaces. Access to the flameproof enclosure is only permitted for maintenance purposes and should only be carried out by a competent electrical engineer who has the necessary training.

Warnings

• DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT
• DO NOT OPEN WHEN ENERGIZED
• POTENTIAL ELECTROSTATIC CHARGING HAZARD
• COVER BOLTS CLASS A4-80
• USE HEAT-RESISTING CABLES AND CABLE GLANDS (RATED 110°C) AT AMB.
• TEMPERATURES OVER 40°C

Rating & Marking Information

All units have a rating label, which carries the following important information:

• Model No.: BExS110D or BExS110D-R
• Input Voltage: DC Units 12V or 24V or 48V
• AC Units 115V or 230V
• BExS110D or BExS110D-R Codes:
• Ex d IIC T4 Gb Ta. -50°C to +55°C
• Ex d IIB T4 Gb Ta. -50°C to +70°C
• Ex tb IIIC T100°C Db Ta. -50°C to +55°C
• Ex tb IIIC T115°C Db Ta. -50°C to +70°C

Certificate No. KEMA 99ATEX6312X
IECEx KEM 10.0003X

The units can be installed in locations with the following conditions

Area Classification Gas

Zone 2

| Explosive gas atmosphere not likely to

occur in normal operation but may be present for short periods.

Gas Groupings

Temperature Classification

Area Classification Dust

Zone 22

| Explosive dust air mixture not likely to occur in normal operation, and if it does, it

will only exist for a short time.

Dust Groupings

• Maximum Surface Temperature for Dust Applications: 100ºC at +55 ºC ambient 115 ºC at +70 ºC ambient
• IP Rating: IP66/67 to EN/IEC60529 and IP6X to
• EN/IEC60079-0, EN/IEC60079-31
• Equipment Category: 2G / 2D
• Equipment Protection Level: Gb / Db
• Ambient Temperature Range: -50°C to +55°C Gas Groups IIA, IIB, and IIC
• -50°C to +70°C Gas Groups IIA and IIB
• -50°C to +70°C Dust Groups IIIA, IIIB, and IIIC

Type Approval Standards

The sounder carries an EC Type Examination Certificate and IECEx Certificate of Conformity, and has been certified to comply with the following standards:

• EN60079-0:2012+A11:2013 / IEC60079-0:2011 (Ed 6): Explosive Atmospheres – Equipment. General requirements
• EN60079-1:2007 / IEC60079-1:2007 (Ed 6): Explosive Atmospheres – Equipment protection by flameproof enclosures “d”
• EN 60079-31:2014 / IEC60079-31:2013 (Ed 2): Explosive Atmospheres – Equipment dust ignition protection by enclosure “t”

Installation Requirements

The sounder must only be installed by suitably qualified personnel in accordance with the latest issues of the relevant standards: EN60079-14 / IEC60079-14: Explosive atmospheres

• Electrical installations design, selection, and erection
• EN60079-10-1 / IEC60079-10-1: Explosive atmospheres
• Classification of areas. Explosive gas atmospheres
• EN60079-10-2 / IEC60079-10-2: Explosive atmospheres

Classification of areas. Explosive dust atmospheres The installation of the sounder must also be in accordance with any local codes that may apply and should only be carried out by a competent electrical engineer who has the necessary training.

Special Conditions of Use
Repair of the flame path / flameproof joints is not permitted. The enclosure is non-conducting and may generate an ignition-capable level of electrostatic charges under certain extreme conditions (such as high-pressure steam). The user should ensure that the equipment is not installed in a location where it may be subjected to external conditions that might cause a build-up of electrostatic charges on non-conducting surfaces. Additionally, cleaning of the equipment should be done only with a damp cloth.

Location and Mounting
The location of the sounder should be made with due regard to the area over which the warning signal must be visible. They should only be fixed to services that can carry the weight of the unit. The BEx sounder should be secured to any flat surface using the three 7mm fixing holes on the stainless steel U-shaped mounting bracket. See Figure 1. The required angle can be achieved by loosening the two large bracket screws in the side of the unit, which allow adjustment of the sounder in steps of 18°. Upon completion of the installation then two large bracket adjustment screws on the side of the unit must be fully tightened to ensure that the unit cannot move in service.

Access to the Flameproof Enclosure

Warning – High voltage may be present, risk of electric shock. DO NOT open it when energized, disconnect power before opening.
Warning – Hot surfaces. External surfaces and internal components may be hot after the operation, take care when handling the equipment

To access the Ex d chamber, remove the four M6 hexagon socket head screws and withdraw the flameproof cover taking extreme care not to damage the flameproof joints in the process. M6 cover screws are Class A4-80 stainless steel and only screws of this category can be used for the enclosure On completion of the installation, the flameproof joints should be inspected to ensure that they are clean and that they have not been damaged during installation. Check that the earth bonding wire between the two castings is secure and the ‘O’ ring seal is in place. When replacing the flameproof cover casting ensure that it is square with the flameproof chamber casting before inserting. Carefully push the cover in place allowing time for the air to be expelled. Only after the cover is fully in place should the four M6 Stainless Steel A4-80 cover bolts and their spring washer be inserted and tightened down. If the cover jams while it is being inserted, carefully remove it and try again. Never use the cover bolts to force the cover into position.

Power Supply Selection

Model No.| Nominal I/P Voltage| Input Current| Max. I/P Volts
---|---|---|---
BExS110DDC012| 12Vdc| 195mA| 15V
BExS110DDC024| 24Vdc| 265mA| 30V
BExS110DDC048| 48Vdc| 130mA| 60V
BExS110DAC115| 115Vac| 110mA| 126V
BExS110DAC230| 230Vac| 56mA| 253V

It is important that a suitable power supply is used to run the equipment. The power supply selected must have the necessary capacity to provide the input current to all of the units. The following table shows the input current taken by the various sounders and shows the maximum voltage at which the sounders can be operated The input current will vary according to the voltage input level and the frequency of the tone selected. The current levels shown above are for the 440Hz Continuous tone nominal input voltage.

Selection of Cable. Cable Glands, Blanking
Elements & Adapters
When selecting the cable size, consideration must be given to the input current that each unit draws (see table above), the number of sounders on the line, and the length of the cable run. The cable size selected must have the necessary capacity to provide the input current to all of the sounders connected to the line. For ambient temperatures over +40ºC, the cable entry temperature may exceed +70ºC and therefore suitable heat-resisting cables and cable glands must be used, with a rated service temperature of at least 110ºC The dual cable gland entries have an M20 x 1.5 entry thread. To maintain the ingress protection rating and mode of protection, the cable entries must be fitted with suitably rated ATEX / IECEx certified cable glands and/or suitably rated ATEX / IECEx certified blanking devices during installation according to EN / IEC60079-14. If a high IP (Ingress Protection) rating is required then a suitable sealing washer must be fitted under the cable glands or blanking plugs. For use in explosive dust atmospheres, a minimum ingress protection rating of IP6X must be maintained. The BEx sounder range can be supplied with the following types of adapters:

• M20 to ½” NPT
• M20 to ¾” NPT
• M20 to M25

It is important to note that stopping plugs cannot be fitted onto adapters, only directly onto the M20 entries. Any other adapters used must be suitably rated and ATEX / IECEx-certified adapters.

Earthing

Both AC and DC sounder units must be connected to an earth. The units are provided with internal and external earth terminals which are both located in the terminal chamber section of the unit. When using the internal earth terminal ensure that the stainless steel M4 flat washer is between the incoming earth wire and the enclosure. Internal earthing connections should be made to the Internal Earth terminal in the base of the housing using a ring crimp terminal to secure the earth conductor under the earth clamp. The earth conductor should be at least equal in size and rating to the incoming power conductors. External earthing connections should be made to the M5 earth stud, using a ring crimp terminal to secure the earth conductor to the earth stud. The external earth conductor should be at least 4mm² in size.

Cable Connections
Electrical connections are to be made into the terminal blocks on the PCBA located in the flameproof enclosure. See section 7 of this manual for access to the flameproof enclosure. Wires having a cross-sectional area between 0.5 mm² to
2.5mm² can be connected to each terminal way. If an input and output wire is required the 2-off Live/Neutral or +/-terminals can be used. If fitting 2-off wires to one terminal way the sum of the 2-off wires must be a maximum cross- sectional area of 2.5mm². Strip wires to 8mm. Wires may also be fitted using ferrules. Terminal screws need to be tightened down with a tightening torque of 0.45 Nm / 5 Lb-in. When connecting wires to the terminals great care should be taken to dress the wires so that when the cover is inserted into the chamber the wires do not exert excess pressure on the terminal blocks. This is particularly important when using cables with large cross-sectional areas such as 2.5mm².

AC Wiring
A 2-way terminal block is provided on the AC Sounder for power. There are 1-off Live and 1-off Neutral terminals in total. A 3-way terminal is provided for stage switching. There are 1-off stage 2, 1-off stage 3, and 1-off common terminals in
total.

Wiring Diagrams

Stage Switching
Units First Stage Tones AC Units Second & Third Stage Tone

Selection
Select the second and third stage tones on the BExS110 AC sounder.

DC Wiring
A 4-way terminal block is provided on the DC Sounder. There are 1-off +ve, 1-off -ve, 1-off stage 2, and 1-off stage 3 terminals in total.

Wiring Diagrams

Stage Switching
Units First Stage Tones

DC Units Second & Third Stage Tone Selection
For units set up for –ve switching (default setting)

Stage Switching Polarity (DC Units Only)
The BExS110D DC sounders have the facility to use either +ve or –ve switching to change the tone to the second and third stages. Negative switching is the default setting. For –ve switching connect the two headers on the PCB to the left-hand (marked –ve) and center pins. For +ve switching connect the headers to the right hand (marked +ve) and the center pins. (Refer to Fig. 7)

Line Monitoring

On BExS110D DC units, dc reverse line monitoring can be used if required. All DC sounders have a blocking diode fitted in their supply input lines. An end- of-line monitoring diode or an end-of-line monitoring resistor can be connected across the +ve and –ve terminals. If an end-of-line resistor is used it must have a minimum resistance value of 3k3Ω and a minimum power rating of 0.5 watts or a minimum resistance value of 500Ω and a minimum power rating of 2 watts. The resistor must be connected directly across the +ve and – ve terminals as shown in the following drawing. The resistor leads should be kept as short as possible.

For units set up for +ve switching (refer to 13.3):

Settings

Tone Selection
The sounders have 32 different tones that can be selected for the first stage alarm. The sounders can then be switched to sound second and third-stage alarm tones. The tones are selected by operation of a DIP switch on the PCB for both DC
and AC units. The tone table on page seven shows the switch positions for the 32 tones and which ones are available for the second and third stages. To operate the sounder on stage one simply connect the supply voltage to the normal supply terminals (+ve and –ve for DC units, L and N for AC units) Volume Control Warning – High noise levels above 85dB(A) during operation. High levels of noise may cause hearing loss, wear suitable ear protection when equipment is in operation The output level of the BEx sounder can be set by adjusting the volume control potentiometer (see Fig 9). For maximum output set the potentiometer fully clockwise

Maintenance, Overhaul & Repair

Maintenance, repair, and overhaul of the equipment should only be carried out by suitably qualified personnel in accordance with the current relevant standards

• EN60079-19
• IEC60079-19

Explosive atmospheres – Equipment repair, overhaul, and reclamation

• UEN 60079-17
• IEC60079-17

Explosive atmospheres – Electrical

installations inspection and maintenance To avoid a possible ELECTROSTATIC CHARGE the unit must only be cleaned with a damp cloth. Units must not be opened while an explosive atmosphere is present. If opening the unit during maintenance operations a clean environment must be maintained and any dust layer removed prior to opening the unit. Flameproof threaded joints and cemented joints are not intended to be repaired.

Tone Selection

|

DIP Switch Settings

|

Stage Selection

---|---|---
Stage 1| Frequency Description| 1| 2| 3| 4| 5| Stage 2| Stage 3
1| Continuous 1000Hz Toxic Gas Alarm| 0| 0| 0| 0| 0| Tone 31| Tone 11
2| Alternating 800/1000Hz at 0.25s intervals| 1| 0| 0| 0| 0| Tone 17| Tone 5
3| Slow Whoop 500/1200Hz at 0.3Hz with 0.5s gap repeated| 0| 1| 0| 0| 0| Tone 2| Tone 5
4| Sweeping 800/1000 at 1Hz| 1| 1| 0| 0| 0| Tone 6| Tone 5
5| Continuous at 2400Hz| 0| 0| 1| 0| 0| Tone 3| Tone 27
6| Sweeping 2400/2900Hz at 7Hz| 1| 0| 1| 0| 0| Tone 7| Tone 5
7| Sweeping 2400/2900Hz at 1Hz| 0| 1| 1| 0| 0| Tone 10| Tone 5
8| Siren 500/1200/500Hz at 0.3Hz| 1| 1| 1| 0| 0| Tone 2| Tone 5
9| Sawtooth 1200/500Hz at 1Hz| 0| 0| 0| 1| 0| Tone 15| Tone 2
10| Alternating 2400/2900Hz at 2Hz| 1| 0| 0| 1| 0| Tone 7| Tone 5
11| Intermittent 1000Hz at 0.5Hz General alarm| 0| 1| 0| 1| 0| Tone 31| Tone 1
12| Alternating 800/1000Hz at 0.875Hz| 1| 1| 0| 1| 0| Tone 4| Tone 5
13| Intermittent 2400Hz at 1Hz| 0| 0| 1| 1| 0| Tone 15| Tone 5
14| Intermittent 800Hz 0.25s on 1s off| 1| 0| 1| 1| 0| Tone 4| Tone 5
15| Continuous at 800Hz| 0| 1| 1| 1| 0| Tone 2| Tone 5
16| Intermittent 660Hz 150mS on, 150mS off| 1| 1| 1| 1| 0| Tone 18| Tone 5
17| Alternating 544Hz (100mS)/440Hz(400mS)| 0| 0| 0| 0| 1| Tone 2| Tone 27
18| Intermittent 660Hz 1.8s on, 1.8s off| 1| 0| 0| 0| 1| Tone 2| Tone 5
19| 1400Hz to 1600Hz sweep up over 1s – 1600Hz to 1400Hz sweep down over 0.5s| 0| 1| 0| 0| 1| Tone 2| Tone 5
20| Continuous 660Hz| 1| 1| 0| 0| 1| Tone 2| Tone 5
21| Alternating 554/440Hz at 1Hz| 0| 0| 1| 0| 1| Tone 2| Tone 5
22| Intermittent 554Hz at 0.875Hz| 1| 0| 1| 0| 1| Tone 2| Tone 5
23| 800Hz pulsing at 2Hz| 0| 1| 1| 0| 1| Tone 6| Tone 5
24| Sweeping 800/1000Hz at 50Hz| 1| 1| 1| 0| 1| Tone 29| Tone 5
25| Sweeping 2400/2900Hz at 50Hz| 0| 0| 0| 1| 1| Tone 29| Tone 5
26| Simulated bell sound| 1| 0| 0| 1| 1| Tone 2| Tone 1
27| Continuous 554Hz| 0| 1| 0| 1| 1| Tone 26| Tone 5
28| Continuous 440Hz| 1| 1| 0| 1| 1| Tone 2| Tone 5
29| Sweeping 800/1000Hz at 7Hz| 0| 0| 1| 1| 1| Tone 7| Tone 5
30| 420Hz repeating 0.625s on, 0.625s off Australian alert signal| 1| 0| 1| 1| 1| Tone 32| Tone 5
31| 1200/500Hz at 1 Hz Prepare to Abandon Platform| 0| 1| 1| 1| 1| Tone 11| Tone 1
32| Sweeping 500/1200Hz 3.75s on, 0.25s off 15Hz| 1| 1| 1| 1| 1| Tone 26| Tone 1

Fire Alarm Certification to EN54-3
The BExS110D, 24Vdc variant, with flare style horn, is certified for use as a Sounder in Fire Alarm Systems according to Regulation EU No. 305/2011: Construction Products Regulation (CPR), and also holds VdS Approval for Components and Systems for use in Fire Alarm Systems.

• EC Type Examination Certificate: 0708-CPD-20225
• VdS Approval No.: G 206011
• Notified Body: VdS Schadenverhütung GmbH
• Notified Body No.: 0786
• Standards applied: EN 54-3:2001 + A1:2002
• Supply voltage: 18-30Vdc

The Sounders are certified for tones 2, 3, 9, 15, 16, and 17. For SPL levels at min. and max. supply voltage see tables below.

BExS110D

(Input Voltage 18V)

|
---|---
Tone No. and Frequency Description| Horizontal Plane (0°)| Vertical Plane (90°)
15°| 45°| 75°| 105°| 135°| 165°| 15°| 45°| 75°| 105°| 135°| 165°
2 – 800/1000Hz @ 0.25

Sec Alternating

| 104.7| 105.1| 108.0| 106.7| 103.4| 102.1| 104.2| 106.0| 107.2| 106.8| 103.4| 101.7
3 – 500/1200Hz @

0.3Hz 0.5 Sec Slow Whoop

|

106.8

|

108.9

|

108.8

|

107.0

|

107.6

|

104.6

|

106.1

|

107.6

|

109.6

|

109.1

|

106.9

|

105.6

9 – 1200/500Hz @ 1Hz

– DIN / PFEER P.T.A.P.

|

105.6

|

106.8

|

107.4

|

106.4

|

106.2

|

103.6

|

104.1

|

105.3

|

106.8

|

106.7

|

105.0

|

103.3

15 – 800Hz Continuous| 100.1| 103.3| 105.6| 107.6| 103.0| 100.3| 10.2| 102.9| 105.2| 106.8| 102.4| 99.6
16 – 660Hz 150mS ON

150mS OFF

Intermittent

|

92.5

|

93.9

|

97.9

|

97.5

|

92.5

|

91.5

|

92.1

|

94.5

|

98.5

|

97.9

|

93.1

|

92.2

17 – 544Hz

(100mS)/440Hz (400mS) – NF S 32-

001

|

101.0

|

102.5

|

106.5

|

107.5

|

103.9

|

100.7

|

101.7

|

102.5

|

105.7

|

107.9

|

103.6

|

101.5

BExS110D

(Input Voltage 30V)

|
---|---
Tone No. and Frequency Description| Horizontal Plane (0°)| Vertical Plane (90°)
15°| 45°| 75°| 105°| 135°| 165°| 15°| 45°| 75°| 105°| 135°| 165°
2 – 800/1000Hz @ 0.25

Sec Alternating

| 105.0| 106.9| 109.9| 109.0| 105.3| 103.3| 104.8| 106.6| 109.6| 109.9| 104.8| 103.5
3 – 500/1200Hz @

0.3Hz 0.5 Sec Slow Whoop

|

105.9

|

107.9

|

109.2

|

108.7

|

107.7

|

106.4

|

105.2

|

108.6

|

109.3

|

109.3

|

106.7

|

107.2

9 – 1200/500Hz @ 1Hz

– DIN / PFEER P.T.A.P.

|

106.4

|

107.0

|

108.1

|

107.9

|

107.4

|

104.8

|

107.3

|

107.9

|

108.5

|

108.6

|

108.1

|

105.8

15 – 800Hz Continuous| 102.3| 103.9| 105.5| 107.8| 105.7| 102.8| 102.0| 104.5| 106.9| 107.0| 106.7| 103.5
16 – 660Hz 150mS ON

150mS OFF

Intermittent

|

94.7

|

96.3

|

97.8

|

98.8

|

94.5

|

94.2

|

95.3

|

97.6

|

98.8

|

99.3

|

96.0

|

93.8

17 – 544Hz

(100mS)/440Hz               103.3

(400mS) – NF S 32-

001

|

105.7

|

108.5

|

109.1

|

106.1

|

102.2      104.2

|

105.6

|

107.7

|

108.7

|

106.3

|

102.0

References

• E2S Warning Signals - Signalling devices for hazardous areas, fire and industrial environments, marine, onshore and offshore applications and wide area sirens and alarms.

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