>On Tue, 23 Oct 2007 20:53:44 -0000, "rigdent" ><[EMAIL PROTECTED]> wrote: > >> >>> Having read earlier posts about some TV being unhappy with a >>> direct 12v connection when engine is running perhaps I should >>> be a bit cautious about using 12v. Is there any way to check >>> whether a voltage greater than 12v will cook it? >>> >>Run it up in a plastic bag and if the magic smoke comes out you >>squeeze the bag and push it back in. >> >>Or you could attatch it to a variable power supply and slowly wind up >>the volts while watching the current. If the current starts to rise >>then back off quick if it stays much the same then its probably got an >>internal voltage regulator. >> >>If all else fails read the instructions the techy bit at teh back may >>give an allowable voltage range >>
Just had a look at the ADVERC website and it says: Q11: Do I need to worry about high voltages affecting sensitive equipment? A11: No. ADVERC cycles between 14.0 and 14.4v at the batteries (27.5v and 28.5v for 24v electrical systems). These voltages are well within the scope of virtually all sensitive navigation and other equipment, unlike BOOSTERS which can deliver voltages in excess of 15.5 volts. So that would probably give a voltage at the equipment end of about 13.5 to 14V - and any good equipment that states a nominal supply of 12V should cope with that - but of course it would be wise to check. -- Malcolm
