European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D211-00-671-IS
Issue 3
20-08-22
Sheet 5 of 8
Fig. 6b End of Line Resistor Placement - Beacon
Fig. 7a End of Line Resistor Forming
Fig. 7b End of Line Resistor Placement – Sounder
12) Setting
12.1. Volume Control
The alarm horn output level of the DxC2 unit can be set by
adjusting the volume control potentiometer (see Fig 8). For
maximum output, set the potentiometer fully clockwise.
Fig. 8 Location of field controls
12.2. Tone Selection
The DxC2 alarm horns have 64 different tones. The tones are
selected by operation of the tone setting DIP switches (see
Fig. 9 & 10) on the PCB. The alarm horns can also be
switched to sound the second, third and fourth stage alarm
tones. The tone table (Table 1) shows the switch positions for
the 64 tone and which tones are available for the second, third
and fourth stages.
12.3. Flash Rate Setting
The D2xC2LD3 beacons can produce different flash patterns as
shown in Table 1. The flash patterns are selected by operation
of the flash setting DIP switch on the PCB, Fig 10.
Fig. 9:
DIP Switch
Location
1=ON; 0=OFF
Table 1: Switch Positions for Flash Patterns
Fig. 10 Dip Switch
Example shown: 01 = Flashing 1.33Hz
13) 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:
IEC/EN60079-19 Explosive atmospheres - Equipment repair,
overhaul and reclamation
IEC/EN60079-17 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.
Switch
Setting
Mode
00
1Hz (60FPM)
01
1.33Hz (80FPM)
10
1.5Hz (90FPM)
11
2Hz (120FPM)
Volume
Control
Tone Setting
Switches 1-6
(See tone
selection table)
End Of Line Resistor
Warning – high-intensity light source. Avoid
looking directly at the light source for
extended periods of time.
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