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INSTRUCTION MANUAL (ATEX / IECEx) 

GNExS1 

Alarm Horn Sounder

 

For use in Flammable Gas Atmospheres

 

 

European Safety Systems Ltd.

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

 

www.e2s.com

 

Tel: +44 (0)208 743 8880

 

Document No. D157-00-001-IS

 

Issue 7

 

02-11-21

 

 

Sheet 1 of 7

 

 

 
 

 

GNExS1R

 

GNExS1F

 

 
 

1)  Product Table 

 

Unit Type Code 

Nominal 

Input Voltage 

Voltage Range 

Nominal 

Input Current 

Max. 

Current 

Sound 

Pressure Level 

dB(A) 

Max* 

Nom

.†

 

GNExS1RDC024 

12Vdc 

10-30Vdc 

221mA 

221mA 

110 

105 

24Vdc 

185mA 

GNExS1RDC048 

48Vdc 

38-60Vdc 

115mA 

221mA 

110 

105 

GNExS1RAC230 

115Vac 

100-260Vac 50/60Hz 

73mA  

80mA 

110 

105 

230Vac 

48mA 

GNExS1FDC024 

12Vdc 

10-30Vdc 

221mA 

221mA 

115 

110 

24Vdc 

185mA 

GNExS1FDC048 

48Vdc 

38-60Vdc 

115mA 

221mA 

115 

110 

GNExS1FAC230 

115Vac 

100-260Vac 50/60Hz 

73mA  

80mA 

115 

110 

230Vac 

48mA 

*Max = Tone 4 

Nom. = Tone 44 

 
The table shows the input current taken by the various sounders. 
A supply voltage variation of +/-10% outside the voltage range is permissible. 
The current levels shown above are for the 440Hz Continuous tone @ nominal input voltage. 
Nominal current at nominal voltage. 
Max rated current at worst case supply voltage. 

Table 1: Electrical Ratings. 

 
Ensure the system power supply is capable of providing the maximum current required for all beacons. Review associated cable size, 
length and quantity of beacons on each circuit. 

 
 
 
 
 
 
 
 
 
 

Summary of Contents for GNExS1F Series

Page 1: ...50 60Hz 73mA 80mA 110 105 230Vac 48mA GNExS1FDC024 12Vdc 10 30Vdc 221mA 221mA 115 110 24Vdc 185mA GNExS1FDC048 48Vdc 38 60Vdc 115mA 221mA 115 110 GNExS1FAC230 115Vac 100 260Vac 50 60Hz 73mA 80mA 115...

Page 2: ...lassification The units can be installed in locations with the following conditions Area Classification Zone 1 Explosive gas air mixture likely to occur in normal operation Zone 2 Explosive gas air mi...

Page 3: ...ble between the cover and base of the sounder enclosure Tighten the M3 grub screw 7 Installation Requirements 7 1 Installation Standards Compliance Warning High voltage may be present risk of electric...

Page 4: ...ed in the table below Max Ambient Temperature C Model 40 45 50 55 60 65 70 GNExS1 70 75 80 85 90 95 Table 2 Min Ratings of Cables Cable Glands Cable Glands Appropriate cable glands to be customer supp...

Page 5: ...t tones that can be selected independently for the first and second stage alarms The tones are selected by operation of the tone setting DIP switch 1 DIP 2witch 2 see figures 6 and 7 on the PCB for st...

Page 6: ...06 005 for AC schematic diagrams 7a AC Single Stage Configuration Default 7b AC Three Four Stage Configuration Default 8 AC Two Stage Voltage Free Activation Configuration Custom K Table 3 Summary of...

Page 7: ...ant standards EN60079 19 IEC60079 19 Explosive atmospheres Equipment repair overhaul and reclamation EN 60079 17 IEC60079 17 Explosive atmospheres Electrical installations inspection and maintenance F...

Page 8: ...NE MONITORING RESISTOR CUSTOMER SUPPLIED 14V MAX SYSTEM 120 MIN 2W MIN OR 1K MIN 0 5W MIN 28V MAX SYSTEM 470 MIN 2W MIN OR 2 4K MIN 0 5W MIN RECOMMENDED MINIMUM VALUES R1 Stage 1 ve IN Stage 1 ve OUT...

Page 9: ...ve OUT Stage 1 ve OUT Stage 3 ve Stage 1 ve IN H2 H1 Stage 1 ve Stage 1 ve Stage 2 ve Stage 2 ve OF 2 3 R1 S2 S3 R1 S2 R2 OPTIONAL LINE MONITORING RESISTOR CUSTOMER SUPPLIED 14V MAX SYSTEM 120 MIN 2W...

Page 10: ...ge 2 ve Stage 2 ve Two Three Stage Voltage Free Activation Configuration Config 5 Customer Set H1 H2 to Negative Switching See Below Power ve ve Stage 1 Connect Stage 1 ve to Common ve Stage 2 Cconnec...

Page 11: ...RAIT B ISARD R N POTTS OF NTS 1 SWITCHES FOR STAGE OPERATION CUSTOMER SUPPLIED 1 Earth Earth Stage 2 Stage 3 Common Live IN Live OUT Neutral IN Neutral OUT Earth Stage 1 Stage 2 Common N N L L E N N...

Page 12: ...0 0 0 1 0 1 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 1 0 1 0 0 1 1 0 1 0 0 0 0 1 1 0 0 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 0 0 1 0 0 1 0 1 1 0 0 1 0 0 0 1 0 1 0 1...

Page 13: ...y No 2813 CSA Group 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 T...

Page 14: ...te and Place of Issue London 23 12 2020 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...

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