User manual ACR ELECTRONICS SM2 REV D

[. . . ] In order to place the warranty in effect, the accompanying registration card must be returned to us within ten days of purchase. ©2008 by ACR Electronics, Inc. , part of Cobham plc. Reproduction in whole or in part is permitted only with permission of ACR Electronics, Inc. Ongoing product improvements may change product specifications without notice. [. . . ] The SM-2 uses a standard 6 volt lantern type battery with screw terminals. A list of recommended batteries can be found above. Note maximum allowable battery weight listed in Section 3. 12. SECTION 2 - MAINTENANCE 2. 1 Operation The unit should be tested monthly. Remove the SM-2 from its bracket and invert it. The unit should begin flashing, at a rate of about one flash per second. Re-invert the unit after confirming correct operation. 2. 2 Inspection Check the exterior of the unit for damage which might affect proper operation (damage to globe, cracks in case, etc. ). Check bracket security. 4 Y1-03-0165 Rev. D 2. 3 Disassembly This will ordinarily be required only if testing shows that the light is malfunctioning, or if battery replacement is required. Recommended interval for battery replacement is one year. Hold the unit on a flat, firm surface, lens side up. Depress the top cap of the unit, by pushing straight down on the top cap assembly, until the swivel locks may be turned outward, clear of the cap. Grip the light lens (using a clean cloth or gloves for a better grip on the smooth surface and to avoid marring the lens surface) and pull upwards until the top cap is clear of the case. Turn the unit on its side, open end slightly downwards, to allow the foam filler and battery to slide out. Disconnect the battery by unscrewing the terminals from the battery posts. Replace the strobe module, if required, as follows: a. Remove foam filler from strobe module, by sliding it off. Slip foam spacer over new strobe module to seat in cap recess. Lubricate with silicone grease. Replace the battery by securing the two terminals to the battery posts. Assure tightness. NOTE: Connect black lead to center (-) post of battery. Connect red lead to outer (+) post of battery. [. . . ] 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. [. . . ]