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E2S Warning Signals

      Impress House, Mansell Road, Acton, London W3 7QH

 

www.e2s.com

 

Tel: +44 (0)208 743 8880

 

Document No. D210-00-651-IS

 

Issue 1

 

13-01-23

 

 

Sheet 5 of 13

 

 

11.2.  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 
val

ue 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.  
 
SIL2 line monitoring module product version: see section 22 
for standard default values and product coding. See 
document D210-06-651 for associated wiring diagram. 

 

Fig. 6 End of Line Resistor Placement 

Note that the maximum forward polarity monitoring voltage is 
6V. A monitoring voltage greater than 6V may activate the 
alarm horn sounder and the 2nd or 3rd stages. 

 

 

 

 

 

 

 

 

12)  Tone Settings 

 
BExS110D-SIL sounders need to be set to one off the SIL 2 
approved tones to work correctly with the automated sounder 
check on pattern generation and signal output checks. 

 
 
Default =   
Tone 1 
 0 0 0 0 0 0 

 

(ON = 1, OFF = 0) 

Figure 7: DIP switch configuration 

 

Refer to D210-95-651-IS Tone Table for tone selection. 
 
Table  2  below  is  a  summary  of  DC:  D210-06-651  wiring 
options.

 

 

12.1.  Volume Control (None)

 

 

BExS110D-SIL sounder has no volume control, as the unit is 
monitoring its output the volume cannot be adjusted. 
 

13)  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 
 

EN  60079-17 
IEC60079-17 

Explosive 

atmospheres 

Electrical 

installations inspection and maintenance 

 
The  acoustic  horn  is  made  out  of  ABS  plastic,  therefore  to 
avoid a possible ELECTROSTACTIC 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. 
 

 

 

Config. 

Voltage 

Configuration Description 

Features  

Product 
Option 
Identifier 

1a 

DC 

Single Stage Configuration 

 

Line monitoring 

 

Negative Switching 

1b 

DC 

Two or Three Stage Configuration 

 

Common Positive  

 

Negative Switching 

DC 

Two or Three Stage Configuration 

 

Common Negative 

 

Customer to Set Header Pins to Positive 
Switching  

Table 2: Summary of Wiring Options. See Document D210-06-651 for DC Schematic Diagrams. 

 

Summary of Contents for BExS110D-SIL

Page 1: ...e table shows the input current taken by the various sounders The current levels shown above are for the 440Hz Continuous tone nominal input voltage Nominal current at nominal voltage Table 1 Electric...

Page 2: ...mixture likely to occur in normal operation Zone 2 Explosive gas air mixture not likely to occur in normal operation and if it does it will only exist for a short time Gas Groupings Group IIA Propane...

Page 3: ...ure 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...

Page 4: ...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 mm to 2 5mm can be connected to each terminal way If an...

Page 5: ...pattern generation and signal output checks Default Tone 1 0 0 0 0 0 0 ON 1 OFF 0 Figure 7 DIP switch configuration Refer to D210 95 651 IS Tone Table for tone selection Table 2 below is a summary of...

Page 6: ...ndby mode and Active mode Health status of power supply Sounder correct function and tone pattern The SIL 2 sounder operates as part of a SIL 2 system The sounder will after commissioning remain power...

Page 7: ...ase contact your local E2S representative Commissioning System Functional start up of System Normally in reverse polarity mode When Commissioning system the power must not be disrupted to the SIL 2 Un...

Page 8: ...sounder check on pattern generation and signal output checks Important Only tones use tones that are stated as SIL 2 approved for the SIL 2 application Ensure that the unit is set to one of these tone...

Page 9: ...he circuit Note a cable short circuit will not be detectable in this configuration For one unit only Sounder power supply terminal block Current drawn mA Active Mode 190mA Standby Mode 25mA SIL2 TB1 C...

Page 10: ...ts and faults occur If multiple SIL 2 alarm horn sounders are to be cabled in series the monitoring connections differ from that of a single alarm horn sounder For more information see manual D197 00...

Page 11: ...pins 2 3 linked Places power supply terminal Fault resistor RLY 1 2 in circuit As used in 2 Wire Configuration Figure 13 J2 Header pin positions Fault Resistor FR 18 4 SIL 2 Hard Reset Function Power...

Page 12: ...sound output despite no input BExS110D SIL Failure to Sound Integrity in respect of failure to release SIL 2 Total Failure rate 0 304 pmh hazardous failure rate revealed 0 233 pmh hazardous failure r...

Page 13: ...9 k CSR Current Sense Resistor is E 2 7 k EOL End Of Line resistor is F 3 3 k Two digit resistor coding on other units BExS110DFDC024AB1S1R AZ Where the FR Fault Resistor is A 2 2 k EOL End Of Line r...

Page 14: ...n over 0 5s Continuous 660Hz 1 1 0 0 1 0 2 5 Alternating 554 440Hz at 1Hz 0 0 1 0 1 0 2 5 Intermittent 554Hz at 0 875Hz 1 0 1 0 1 0 2 5 800Hz pulsing at 2Hz 0 1 1 0 1 0 6 5 Sweeping 800 1000Hz at 50Hz...

Page 15: ...e 1 ve Stage 1 ve For full 4 Wire SIL 2 Connection Monitor SIL 2 ve and SIL 2 ve Terminals 1 2 in RLY1 2 Two or Three Stage Configuration Config 1b Line Monitoring Common Positive Header pins set to n...

Page 16: ...oup Netherlands B V Utrechtseweg 310 6812 AR Arnhem Netherlands Quality Assurance Notification Module D SIRA 05 ATEX M342 Provisions fulfilled by the equipment II 2G Ex db IIB or IIC T4 Gb II 2G Ex db...

Page 17: ...are in accordance with the restriction of the use of hazardous substances in electrical and electronic equipment including amendment by Directive 2015 863 EU Regulation EC 1907 2006 Registration Evalu...

Page 18: ...duction process Module D Sira Certification Service Notified Body No 0518 Rake Lane Eccleston Chester CH4 9JN UK Quality Assurance Notification Module D CSAE 22UKQAN0046 Provisions fulfilled by the eq...

Page 19: ...and Place of Issue London 12 09 2022 UKCA Declaration of Conformity On behalf of European Safety Systems Ltd I declare that on the date the equipment accompanied by this declaration is placed on the...

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