E2S BExS110D, Instruction Manual, Page: 6 / 16

European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D210-00-001-IS Issue 7 12-09-2022 Sheet 6 of 6
13.2 Volume Control
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.
BExS110D AC
BExS110D DC
Fig.10 Location of Volume Control Potentiometer
14. 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.
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.
Volume Control
Potentiometer
Volume Control
Potentiometer