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Warning lights with "Push To Test"

 
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gerf(at)gerf.com
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PostPosted: Wed Feb 01, 2006 9:03 am    Post subject: Warning lights with "Push To Test" Reply with quote

In the trainer I flew there was a block of rectangular warning
lights that indicated things like canopy open, alternator fault
etc. You could depress the lense of the warning lamp to light
and thus test the bulbs. Does anyone know of a source of such
- preferrably compatible with B&C's LR-3 Alternator Controller
OV lamp feed.

Thx in advance for any suggestions...

__g__

==========================================================
Gerry Filby gerf(at)gerf.com
Tel: 415 203 9177


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jschroeder(at)perigee.net
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PostPosted: Wed Feb 01, 2006 2:18 pm    Post subject: Warning lights with "Push To Test" Reply with quote

Gerry -

NKK has a line of lamps that are LED's. I installed two B&C voltage
regulators (dual battery Z-14) and wired them to their own low voltage
lamp. They work great. There is no press-to-test feature, but you could
design a circuit to test them all at once. I did not feel that the
press-to-test feature is all that critical with LED's and their inherent
longevity. Also for the regulators, you will get a light as soon as you
turn the battery switch on for each circuit. If they do not come on, you
should not go anywhere until you know why this is so. Same for oil
pressure, canopy open. For boost high and low, we check for fuel pressure
before start and check the light then.

I have the annunciator circuit on a .pdf if you need it. The resistor
values for the LED's are a little different than the ones Bob shows in a
diagram he published. Check this for a view of the annunciator panel:

http://w1.lancair.net/pix/jschroeder-panel/Panel_Test_4

The low volts are off because we have number 2 battery on at about 13.1
volts and are checking the crossfeed function. Normally you would see the
external power light on during our full testing as well, and probably no
crossfeed light.

Cheers,

John Schroeder
Lancair ES - painting
Quote:
In the trainer I flew there was a block of rectangular warning
lights that indicated things like canopy open, alternator fault
etc. You could depress the lense of the warning lamp to light
and thus test the bulbs. Does anyone know of a source of such
- preferrably compatible with B&C's LR-3 Alternator Controller
OV lamp feed.


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rv-9a-online(at)telus.net
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PostPosted: Wed Feb 01, 2006 5:02 pm    Post subject: Warning lights with "Push To Test" Reply with quote

Gerry, if you are happy with regular incandescent or LED lamps (like
John Schroeder's), and want a handy circuit to drive them, allow for
dimming and lamp test with an *external* pushbutton, look at the IL-4A
or IL-12A at www.vx-aviation.com

Thanks,
Vern Little
RV-9A
Gerry Filby wrote:
Quote:



In the trainer I flew there was a block of rectangular warning
lights that indicated things like canopy open, alternator fault
etc. You could depress the lense of the warning lamp to light
and thus test the bulbs. Does anyone know of a source of such
- preferrably compatible with B&C's LR-3 Alternator Controller
OV lamp feed.

Thx in advance for any suggestions...

__g__

==========================================================
Gerry Filby gerf(at)gerf.com
Tel: 415 203 9177


- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List
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