Advanced marine electrics and electronics troubleshooting : by Edwin Sherman

By Edwin Sherman

SAVE time and cash WITH THIS state of the art advisor TO the newest, such a lot complex DIAGNOSTIC gear AND TECHNIQUES

"Ed Sherman is certainly one of America's nice academics and communicators of marine technology." -- Tim Murphy, former govt editor, Cruising World

Whether you're a marine electronics expert or a boatowner, Advanced Marine Electrics and Electronics Troubleshooting is helping you already know the recent, extra strong tools of troubleshooting marine electric and digital structures. a latest boat's subtle installations and networked electronics can stretch the conventional diagnostic equipment, in keeping with hassle lighting fixtures and multimeters, previous their worthy limits. This publication will enable you to:

  • Use microprocessor-based diagnostic instruments and methods from the automobile and communications sectors, tailored for boats for the 1st time
  • Diagnose the main tough AC and DC difficulties
  • Protect communications and navigation electronics from interference and lightning
  • Seek out and do away with stray-current resources and galvanic corrosion

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Additional resources for Advanced marine electrics and electronics troubleshooting : a manual for boatowners and marine technicians

Example text

After a few seconds the EXP will prompt you to rev the engine for 5 seconds with the loads on. The correct rpm level will be shown in a graphic display similar to that shown for the no-load test in photo 2 on page 29. 4 Next, turn off the loads and the engine. 6 The arrow keys allow you to scroll through a series of results in bar graph format. 5 The test results. 01 V between the loaded and unloaded test, indicating that the alternator charging system had no problem keeping up with the loads. , with the engine not running).

4 3 Now turn on electrical loads. Select critical, commonly used DC loads that you may need or use simultaneously with the engine running; for example, navigation lights, bilge pump and blower circuits, all navigation and communications equipment, and refrigeration systems. You want to be certain that the system can supply all these circuits and have adequate power left to recharge the batteries at the same time. 5 With loads on, idle the engine. The rpm scale for the loaded running test. Rev the engine to the vertical line and hold.

Flooded cells, gel-cells, AGM) and the maximum battery rating in cold cranking conductance tester amps (CCA). Also be sure that the tester matches the battery’s capacity. Marine batteries often have a larger capacity than automotive batteries (an 8D-sized battery, for example), which some automotive testers cannot handle. Midtronics is one of the leading companies involved in the development of these instruments; I use a Midtronics Micro500XL conductance tester, which costs about $800, and have found it to be reliable.

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