By Edwin Sherman
SAVE money and time WITH THIS cutting-edge advisor TO the newest, so much complicated DIAGNOSTIC gear and methods
“Ed Sherman is one in all America’s nice lecturers and communicators of marine technology.”--Tim Murphy, government Editor, Cruising international
Whether you're a marine electronics expert or a boatowner, complicated Marine Electrics and Electronics Troubleshooting is helping you recognize the recent, extra strong equipment of troubleshooting marine electric and digital structures. a contemporary boat’s subtle installations and networked electronics can stretch the conventional diagnostic tools in line with difficulty lighting and multimeters prior their invaluable limits. This e-book will assist you:
- Use microprocessor-based diagnostic instruments and methods from the automobile and communications sectors, tailored for boats for the 1st time
- Diagnose the main tricky AC and DC difficulties
- Protect communications and navigation electronics from interference and lightning
- Seek out and cast off stray-current assets and galvanic corrosion
Read or Download Advanced Marine Electrics and Electronics Troubleshooting: A Manual for Boatowners and Marine Technicians PDF
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Additional info for Advanced Marine Electrics and Electronics Troubleshooting: A Manual for Boatowners and Marine Technicians
You connect the transmitter to one end of the conductors, then trace along the wire with the handheld receiver unit. As long as the receiver sounds off, it is receiving a signal, indicating continuity. When the noise stops, you’ve found your break. If access is not a problem, a tone-generating circuit tracer may be easier to use, since it shows you the exact location of the fault. If access is a problem, a TDR may more useful since it tells you where the fault is located, as a function of distance from the device.
At one time, this test couldn’t be performed on an inactive circuit, but as noted earlier, the EXP generates its own signal, so this is no longer a problem. resistance (which is measurable) can cause a circuit to perform poorly or not at all. ABYC Standard E-11 identifies key circuits and the acceptable levels of voltage drop as a percentage of nominal voltage. For critical circuits like electronics, bilge blowers, panel feeders, and navigation lights, the limit is 3% of the nominal circuit voltage (generally either 12 or 24 V).
T e s t i n g b at t e r i e s , c h a rg i n g s y s t e m s , a n d s ta rt e r c i rc u i ts 2 Turn off all electrical loads and rev the engine for 5 seconds. The unit provides a screen view to ensure that engine rpm is detected. It then advances to a horizontal tachometer-type display. Bring the engine rpm to the level of the vertical line and hold. 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.
Advanced Marine Electrics and Electronics Troubleshooting: A Manual for Boatowners and Marine Technicians by Edwin Sherman