9
TM293 MEDC DB3BM UL Technical Manual
SOUNDER/HORN – DB3BM UL TM293.A August 2022 www.eaton.com
4.0 OPERATION
The sounder is available in various AC input voltage
versions and a single DC input voltage version.
For AC versions, the nominal operating voltage is stated on
the unit label and the supply voltage tolerance is ±10%.
For DC versions, the absolute input voltage range is
11.0Vdc to 57.6Vdc. For full ratings data see section 6
If using EOL resistors the maximum total power
dissipation of the resistors will be limited to 3W.
The unit is fitted with a volume control which is positioned
on the top face of the electronics assembly PCB.
Maximum volume is obtained when this control is turned
fully clockwise. When turned fully anti-clockwise the unit
will emit no sound.
Warning: Do not attempt to turn the volume control past
its limits of movement as this may cause damage to the
unit.
Warning: The unit has a certified upper operating
temperature limit of +85°C, however continuous operation
is not recommended in ambient temperatures above
+70°C
Sound Pressure Output
Minimum Audibility ratings according to UL464 and sound
pressure level according to CAN/ULC-S525 are below as
tested on tones 4,14,19 and 28
Directional Characteristics
Rated SPL directional characteristics as measured in
accordance with CAN/ULC-S525-07 at 11v DC / 2850Hz
at 3 Meters
Flare Option. Tone No. Audibility Rating UL464
(OSPL dBA at 10ft)
Can/ULC-S525
(OSPL dbA at 3M)
Long Flare 4 81.4 97.8
Long Flare 14 93.0 92.9
Long Flare 28 92.6 107.6
Long Flare 19 89.0 98.6
Short Flare 4 81.5 89.4
Short Flare 14 87.7 92.4
Short Flare 28 91.3 101.6
Short Flare 19 80.9 91.0
Angle OSPL (dBA) Angle OSPL (dBA)
Short Flare Horizontal Axis
On Axis 90° 88.91 On Axis 90° 88.91
120° 85.78 (-3dBA) 55° 85.26 (-3dBA)
130° 82.49 (-6dBA) 50° 82.37 (-6dBA)
180° 63.1 0° 78.24
Short Flare Vertical Axis
On Axis 90° 88.76 On Axis 90° 88.76
130° 84.45 (-3dBA) 55° 86.02 (-3dBA)
135° 82.79 (-6dBA) 50° 81.21 (-6dBA)
180° 56.39 0° 72.8
To Next Page
Loading...
Need help?
General
