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European Safety Systems Ltd.

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

 

www.e2s.com

 

Tel: +44 (0)208 743 8880

 

Document No. D190-00-651-IS

 

Issue 1

 

27-10-2022

 

 

Sheet 4 of 15

 

 

7.4.  Access to the Explosionproof Enclosure 

  

 

Fig 2: Accessing the enclosure

 

 

To access the Ex d chamber, loosen the M4 grub screw on the 

sounder cover. Open the enclosure by turning the  sounder cover 

counterclockwise and remove the cover. Take  extreme care not 

to damage the explosionproof threads in the process.

 

 
On completion of the installation the flameproof threaded joint should 
be inspected to ensure that they are clean and that they have not been 
damaged during installation.  
 
Ensure the O-ring seal is in place and undamaged. 
 
When  fitting  the  flameproof  cover  ensure  the  thread  is  engaged 
correctly. Fully tighten the cover all the way, ensure no gap is visible 
between the cover and base of the sounder enclosure. 
 

8) 

Installation Requirements 

 

8.1.  Safe Installation Requirements 

  

 

Warning 

 High voltage may be present, 

risk of electric shock. 
DO NOT open when energised, 
disconnect power before opening. 

The sounder must only be installed by suitably qualified personnel in 
accordance with the latest issues of the relevant standards. 

 

The product must only be installed by suitably qualified personnel 

in accordance with the latest issues of the relevant standards.

 

  

The installation of the units must also be in accordance with the 

NEC / CEC and any local regulations and should only be carried 

out  by  a  competent  electrical  engineer  who  has  the  necessary 

training.

 

  

8.2.  Cable Selection and Connections 

 
Electrical connections are to be made into the terminal blocks on the 
PCBA, using solid wire 0.5-4mm2 / AWG 20-12 or stranded wire, sizes 
0.5-2.5mm2 / AWG 24-14. Wire insulation needs to be stripped 8mm. 
Wires may  be  fitted securely  with  crimped  ferrules. Terminal  screws 
need to be tightened down with a tightening torque of 0.45 Nm / 3.5 
Lb-in. 
 
When selecting the cable size, consideration must be given to the input 
current that each unit draws (see table 1), the number of sounders on 
the line and the length of the cable runs. The cable size selected must 
have  the  necessary  capacity  to  provide  the  input  current  to  all  the 
sounders connected to the line.  
 

 

DC: 0.2 - 2.5mm

2

 / AWG24 - AWG12 

 

Fig 3: Wire Preparation.  

 
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. 

8.3.  Earthing 

 

 

Fig. 4 Earth Locations

 

 

The unit has both a primary internal and secondary external earth 

fixing point.

 

  

Internal earth 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 but at least a minimum of 0.82mm

2

 / 

18AWG in size.

 

 

External earth connections can be made to the M5 earth stud (see 

Fig. 4), using a ring crimp terminal to secure the earth conductor 

to the earth stud. The external earth conductor should be at least 

4mm

2

 in size.

 

  

The external earth crimp ring should be located between the two 

M5 plain washers provided and securely locked down with the M5 

spring washer and M5 nut.

 

 

8.4.  Cable Glands, Blanking Elements & Adapters 

 
Ingress Protection 

 

If a high IP (Ingress Protection) rating is required then a suitable 

sealing washer must be fitted under the cable glands or blanking 

plugs.  A  minimum  ingress  protection  rating  of  IP6X  must  be 

maintained for installations in explosive dust atmospheres.

 

 

To maintain the ingress protection rating and mode of protection, 

the  cable  entries  must  be  fitted  with  suitably  rated  cable  entry 

and/or blanking devices during installation.

 

  

If entries are fitted with adaptors they must be suitably rated for 

the application. Fitting of blanking elements into adaptors is not 

permitted.

 

 

Adapters 

 
The  D1x  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. 
 
 
 
 
 
 
 
 
 
 
 

 

Internal Earth 
Marked with G 

External Earth 

  

8mm 

Summary of Contents for D1xS1FDC024-S

Page 1: ...ROM ENCLOSURE EQUIPMENT MUST NOT BE INSTALLED WITH THE HORN FACING UPWARDS OF HORIZONTAL DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS PRESENT DO NOT OPEN WHEN ENERGISED POTENTIAL ELECTROSTATIC CHARGING...

Page 2: ...of each unit model Certificate No DEMKO 19ATEX2141X IECEx ULD 19 0008X UKEx UL UL21UKEX2132X Epsilon x Equipment Group and Category II 2G II 2D CE Marking and Notified Body No 2813 UKCA Marking and N...

Page 3: ...in a location where it may be subjected to external conditions that might cause a build up of electrostatic charges on non conducting surfaces Only the explosionproof cover is to be used for access to...

Page 4: ...s on the line and the length of the cable runs The cable size selected must have the necessary capacity to provide the input current to all the sounders connected to the line DC 0 2 2 5mm2 AWG24 AWG12...

Page 5: ...3 Tone Selection The D1x Alarm Horn Sounders have 64 different tones that can be selected independently for the first and second stage alarms The tones are selected by operation of the tone setting DI...

Page 6: ...0 5W or a minimum resistance value of 500 ohms and a minimum wattage of 2W The resistor must be connected directly across the ve and ve terminals as shown in the following drawing The resistor leads s...

Page 7: ...ing DC Only End of Line Devices may be fitted between the ve ve terminals of the PCBA Please ensure that the device legs meet the wire size range stated for the connection terminals and are fitted cor...

Page 8: ...perates as part of a SIL 2 system The sounder will after commissioning remain powered in Standby mode reverse polarity until the sounder is required to operate When the signaling device is required to...

Page 9: ...rity mode When Commissioning system the power must not be disrupted to the SIL 2 Unit within the unit s initialization cycle which is 5 seconds Once past this period the SIL 2 system is fully operatio...

Page 10: ...heck 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 tones see in...

Page 11: ...rom the 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...

Page 12: ...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 00 651 IS available from t...

Page 13: ...ion B pins 2 3 linked Places power supply terminal Fault resistor RLY 1 2 in circuit As used in 2 Wire Configuration Figure 14 J2 Header pin positions Fault Resistor FR 16 4 SIL 2 Hard Reset Function...

Page 14: ...ound output despite no input D1xS1FDC024 S Failure to Sound Integrity in respect of failure to release SIL 2 Total Failure rate 0 447 pmh hazardous failure rate revealed 0 443 pmh hazardous failure ra...

Page 15: ...g The values of resistors available are shown in table 7 below Code Resistor Value Default resistor coding as follows D1xS1FDC024AB1S1R AFZ Example of a custom requirement resistor coding D1xS1FDC024A...

Page 16: ...0 1 0 0 1 0 1 1 0 0 1 0 0 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 1 0 1 1 1 0 1 0 1 1 0 1 1 0 0 0 1 1 1 0 0 1 1 1 1 0 0 0 0 0 0 1 0 1 0 0 0 1 1 1 0 0 0 1 0 0 1 0 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 1 1 0 0 1 0 0 0 1...

Page 17: ...OUT Common ve IN Common ve OUT Stage 2 ve Stage 1 ve IN Stage 1 ve OUT Common ve IN Common ve OUT Stage 2 ve Stage 3 ve EOL EOL S2 EOL S2 S3 Stage 1 ve IN Stage 1 ve OUT Stage 1 ve IN Stage 1 ve OUT...

Page 18: ...S NTS SWITCHES FOR STAGE OPERATION CUSTOMER SUPPLIED Stage 2 ve Common ve IN Common ve OUT Stage 1 ve OUT Stage 3 ve Stage 1 ve IN H2 H1 OF 2 2 EOL S2 S3 OPTIONAL LINE MONITORING RESISTOR CUSTOMER SUP...

Page 19: ...warden Industrial Park Hawarden Deeside CH5 3US UK Quality Assurance Notification Module D SIRA 05 ATEX M342 Provisions fulfilled by the equipment II 2G Ex db IIC T6 T3 GB II 2D Ex tb IIIC T82 C 145 C...

Page 20: ...e and Place of Issue London 10 02 2022 EU 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 m...

Page 21: ...CH4 9JN UK Quality Assurance Notification Module D CSAE 22UKQAN0046 Provisions fulfilled by the equipment II 2G Ex db IIC T6 T3 GB II 2D Ex tb IIIC T82 C 145 C Db Standards applied EN 60079 0 2018 EN...

Page 22: ...te and Place of Issue London 24 02 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 th...

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