User manual ACR ELECTRONICS SM-2 STROBING MAN-OVERBOARD LIGHT

[. . . ] 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 1. 6 1. 7 1. 8 1. 9 1. 10 1. 11 1. 12 1. 13 1. 14 1. 15 1. 16 1. 17 Figure 1 Figure 2 2. 0 2. 1 2. 2 3. 0 3. 1 3. 2 3. 3 3. 4 ---Figure 3 TITLE SECTION 1 - CHARACTERISTICS General Purpose Component Ratings Operation Effect of Testing Encapsulating Materials Construction Lanyard Case Lens Ballast Mounting Bracket Dimensional Stability and Vapor proofness Battery Connection Buoyancy Stroboscopic Flashing Light Technical Data SM-2 Outline and Dimensional Sketch Instruction Plate Label SECTION 2 - INSTALLATION Installation Procedures Battery Installation SECTION 3 - TESTING Operation Inspection Disassembly Assembly SM-2 Parts List SM-2 Exploded View PAGE 3 3 3 3 3 3 3 4 4 4 4 4 4 4 5 5 5 6 7 8 9 9 9 9 - 10 9 9 9 - 10 10 11 12 2 Y1-03-0165 Rev. B 1. 0 1. 1 SECTION 1 - CHARACTERISTICS GENERAL This section describes operating instructions and operational characteristics of the SM-2 Automatic Crew-overboard light. The information presented herewith is in conformance with U. S. Coast Guard Specification 46 CFR 161. 010 and 161. 110. [. . . ] The watertight integrity of the equipment is assured by O-Ring seals between surfaces. The unit's ability to withstand any anticipated external forces is assured by the combination of material strength and assembly methods. 4 Y1-03-0165 Rev. B 1. 14 STROBOSCOPIC FLASHING LIGHT The SM-2 Flashing Light uses a capacitor discharge xenon flashtube and meets the following requirements. A completely sealed solid state circuit converts power from the battery and supplies it to the flashtube. 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. 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. (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) 5 Y1-03-0165 Rev. B 1. 17 TECHNICAL DATA - SM-2 Pertinent Technical Data is listed below: ITEM Dimensions Weight Modules (1) Flashing Rate Flashing Light Intensity Power Requirement Material Activation Bracket Recommended Battery Replacement Interval Accessory (Optional) Max Battery Weight CHARACTERISTICS 13. 65" (34. 67 cm) length 4" (10. 16 cm) diameter 3 lbs, 4 oz. (1. 474 Kg), including battery 1 lb, 13 oz. (. 822 Kg), excluding battery completely sealed electronics 60 times per minute ± 1 Minimum of 2 candelas per flash in all directions of upper hemisphere Standard 6. 0 Volt lantern battery with screw terminals Plastic Blend Case, Lexan Lens Automatic Gravity Switch Plastic Blend Mounting Bracket 1 Year 4D6V SP Battery Adapter 675 grams or 1. 49 lbs or unit will sink 6 Y1-03-0165 Rev. B FIGURE 1 OUTLINE AND DIMENSIONAL SKETCH 7 Y1-03-0165 Rev. [. . . ] Remove foam filler from strobe module, by sliding it off. Slip foam spacer over new strobe module to seat in cap recess. 9 Y1-03-0165 Rev. Replace the battery by securing the two terminals to the battery posts. NOTE: Connect black lead to center (-) post of battery. [. . . ]