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European Safety Systems Ltd.

   Impress House, Mansell Road, Acton, London W3 7QH           [email protected]              Tel: +44 (0)208 743 8880 

                                                                                                                                                             www.e-2-s.com             Fax: +44 (0)208 740 4200 
Document No. D201-00-031-IS           Issue 1          18-08-16                         Sheet 7 of 7                                                                                            

 

15) 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 

 

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. 

 

Flameproof threaded joints and cemented joints are not 
intended to be repaired. 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

Summary of Contents for BExH120D

Page 1: ...ate No KEMA 99ATEX6312X IECEx KEM 10 0003X The units can be installed in locations with the following conditions Area Classification Gas Zone 1 Explosive gas air mixture likely to occur in normal oper...

Page 2: ...The location of the hootronic 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 un...

Page 3: ...topping 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 10 Earthing Both AC and DC hootronic so...

Page 4: ...nd N supply terminals see fig 4 12 2 2 AC Units Second and Third Stage Tone Selection To select the second and third stage tones on the BExH120 AC hootronic sounder Stage two S2 Operation Power L and...

Page 5: ...Header Pins alters stage 2 tone Stage three S3 Operation Power ve and ve link a ve supply line to the S3 terminal Header pins alters stage 3 tone 2 3 S top 1 2 3 S2 S3 Stop ve ve Fig 7 DC Terminals 1...

Page 6: ...The sounders can then be switched to sound second and third stage alarm sounds The sounds are selected by pin headers on the pcb for both DC and AC units The sound table below shows the pin header pos...

Page 7: ...y 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 Explosiv...

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