Re: Light-Sport Aircraft Yahoo group Re: Maxpro Battery monitor

The diodes drop the monitored voltage by 1.2 volts. The device was made to monitor 12v DC batteries. Hence the need to deliberately drop the voltage to a range meaningful to the device. When monitoring the voltage with a digital meter it shows a steady 12.3 volts DC, but I'm wondering if (because of the alternator) the voltage is really in the form of a square oscillating wave. The device works 100% right until I kick the alternator on. Then it works about 90% of the time as expected, but randomly switches briefly to a flashing red display for a second then switches back to steady blue. I'm hoping the people who I bought the gadget from can offer a suggestion as to what to do if this is the cause.

 

----- Original Message -----

From: Edward Benson

To: Sport_Aircraft@yahoogroups.com

Sent: Friday, March 26, 2010 6:47 AM

Subject: Light-Sport Aircraft Yahoo group Re: Maxpro Battery monitor

 

<<I measured the voltage after the diodes (with the engine running) and it was a steady 12.3 volts.>>

Don't know the effect of the diodes, but with the engine running shouldn't the voltage be around 14v in a 12v airplane?

Fast Eddie B. (Ed Benson - Mineral Bluff, GA)

Sky Arrow 600 E-LSA • N467SA

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