User Guide

Y1-03-0165 Rev. B
5
1.14 STROBOSCOPIC FLASHING LIGHT
The SM-2 Flashing Light uses a capacitor discharge xenon flashtube and meets the following
requirements.
A. A completely sealed solid state circuit converts power from the battery and supplies it to the
flashtube.
B. A suitable capacitor discharge, xenon flashtube is provided which is compatible with the
electronic flashing circuit and lens which will provide the required light output. The service life of
this flashtube is rated for 5,000,000 flashes.
C. The light will flash at a rate of 60 ± 1 flashes per minute with a minimum intensity of 2 CD for a
minimum of 15 hours. Light from each flash is radiated in all directions of upper hemisphere.
1.15 BATTERY CONNECTION
All operating voltages are furnished by an integral battery pack. Operating voltage is 6.0 VDC.
(Shipped without battery from factory)
Electrical connections between the main circuit board and the associated battery are accomplished
by the use of clearly marked terminals and color-coded lead wires.
1.16 BUOYANCY
The SM-2 is independently buoyant and will float for an indefinite time interval with the center of
the flashtube at least 2 inches above the water surface.
A matter of balance
Marker lights, by design need not only to float upright for maximum visibility. The 6 volt lantern
batteries provide the ballast for these lights. Although these batteries are the same size, their
different chemistries cause them to have varying weights. It is imperative that only the 6 volt
battery models suggested are used. Too little ballast and the light will lie over on its side and be
ineffective; too much weight and the light could sink. If you have any doubts that you are using a
battery of appropriate weight, test the light by placing it into shallow water. The results will be
obvious; if the light floats upright, it's good. If the light sinks, the battery is too heavy.
Maximum battery weight: 675 grams (1.49 lbs)
(See list of suggested batteries on Page 1)