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bypass switch enables an opera- tor to bypass the electronic por- tions of the UPS for maintenance purposes. Typical SCI configura- tions for uninterruptible power systems include float type, recti- fier input type, and redundant systems. Write 81 on Reader Service Card SPERRY The Sperry division of Sperry Corporation, Lake Success, N.Y., has developed several systems that provide increased automa- tion and monitoring capabilities for commercial ships. Sperry has developed an integrated bridge system that allows all bridge func- tions to be combined into a sin- gle, computerized console area, ef- fectively permitting a decrease in necessary manpower require- ments. The division also has developed an engine control and monitor- ing system for use on diesel- powered ships. Three such sys- tems have been delivered to Lev- ingston Shipbuilding Company in Orange, Texas, for use on the Pride of Texas and her two sister ships. The system on the Pride of Texas, a 36,000-dwt dry bulk car- rier, permits fully automated con- trol of the unmanned engine room. The system is fully ap- proved by the U.S. Coast Guard for unmanned operations. The engine control and monitoring system permits full display of all engine parameters on a main console, which is also used to control the engine operation. In addition, the Pride of Texas sys- tem has seven remote alarm pan- els placed in key areas of the ship to provide warnings of an engine malfunction. Write 82 on Reader Service Card WAGER # ..01 • mm # » * , * ^ smoke mmmm *me* , --mmm- Wager's Model M-7 Smoke Indicator. Photoelectric smoke indicators manufactured by Robert H. Wager Company of Chatham, N.J. automatically monitor, de- tect, and accurately measure stack emissions, both to help the vessel operator comply with smoke reg- ulations and to monitor combus- tion for fuel economy. For sensitive, automatic read- out of smoke conditions, these Wager photoelectric monitors em- ploy a light sensor in the stack that detects and measures the opacity of the emissions to with- in one percent accuracy full scale. Differentiation between black and white smoke is also possible. New models, ideal for diesel and gas turbine emissions, give precise readouts without interference from ambient light. These precise readings are re- layed by cable from the light sensor to an amplifier cabinet that may be conveniently located on or near the main control con- sole in the engine room. On the cabinet panel a meter displays the smoke readout on a scale of 0-100 percent, with additional scales available for even more precise readings. Panel lights also alert personnel to the presence of smoke, indicate black or white smoke, and show the zone in which the monitor is operating. Specifically designed to operate in a rugged marine boiler envi- ronment, Wager photoelectric monitors are shock and vibration tested to insure continuous oper- ation and minimum maintenance, with complete reliability for five years or more in monitoring smoke conditions. Wager PSIs meet MarAd's "Standard Specification for Mer- chant Ship Construction," De- cember 1972, Section 70. They also conform to U.S. Coast Guard smoke alarm requirements for re- duced manning. Write 83 on Reader Service Card With the knowledge and dedication of a doctor, the delicate skills of a surgeon and the determination of a nurse, the team moves into action, each specialist making SOUTHWEST MARINE, INC. THE SHIPCLINIC® P.O. Box 13308, San Diego. Ca. 92113 (714) 238-1000 P.O. Box 7644, San Francisco, Ca. 94120 (415) 543-0499 his contribution with precision, pride and craftsmanship. This is the SHIPCLINIC? specialists in the repair, modernization and maintenance of seagoing vessels. Yes, I am interested in your ship repair service and would like to know more about your facilities and capabilities. • Please send me your brochure covering your total program. • Please have a representative call me for a detailed cost estimate and scheduling plan. Name _ Co. Name . State. MAIL ro: Southwest Marine. Inc., P.O. Box 13308, San Diego, Ca. 92113 Attn: I. Maggay MR July 1, 1981 Write 503 on Reader Service Card 33
