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13. Settings
The BExH120D Hootronic sounder has 5 different traditional
sounds that can be selected for the first stage alarm. 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 positions for the 5 sounds and which
sounds are available for the second and third stages.
The BExH120D Hootronic sounder has the facility to replicate
the "tail off" traditionally associated with these sounds when
generated by electro-mechanical devices. The switching is
achieved using the "Stop" terminal (see section 12 & 13).
See figure 5 for header location on AC units and Figure 7 for
header location on DC units.
Sound Selection Table
Stage 1
Description
Sound 1
Industrial Hooter
High Frequency
Sound 2
Mechanical Siren
Medium
Sound 3
Frequency
Mechanical Siren
Electro
Sound 4
Mechanical
Buzzer
Sound 5
Mechanical Bell
13.1 Volume Control
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.
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.
Volume Control
Potentiometer
BExH120D AC
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document No. D210-00-031-IS
Stage 2
Stage 3
Header
Sound 3
Sound 5
Sound 1
Sound 5
Sound 1
Sound 5
Sound 2
Sound 5
Sound 1
Sound 2
Issue 5
12-09-2022
Volume Control
Potentiometer
BExH120D 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
Explosive atmospheres - Equipment
IEC60079-19
repair, overhaul and reclamation
EN 60079-17
Explosive atmospheres - Electrical
IEC60079-17
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.
www.e2s.com
S2
S3
Stop
Tel: +44 (0)208 743 8880
Sheet 6 of 6
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