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Subject:Re: LEDs
From:Alistair Bell
Date:Fri, 25 Nov 1994 13:19:43 -0800 (PST)

On Fri, 25 Nov 1994, David Carment wrote:

> Ok what have we got so far for LP On indicators: green LED's; Red LED's;
> Blue LED's and a gauge. OK. Green and Blue LEDs seem to be associated
> with the later models possibly after 83.  Are we all agreed that 
> regardless of
> colour that the LED glows faintly when first lit and then gets brighter
> as the flame intensifies? (this is kind of interesting). The gauge may be
> an aftermarket device....

Yes I've noticed this, I think that the LED is hooked up in some way to a
thermocouple thing which is in the the region of the combustion chamber.

> Also wrt LEDS, I took apart the panel and found the battery LED system is
> hooked up to a potentiometer. The previous owner had noted that regardless
> of the charge of the battery the green LED would never show; upon closer
> inspection I was able to rotate the pot slowly so that at full charge a
> green LED was possible. The key thing here would be to know a base point
> at which full charge is present  and work from there - Hayne's gives
> apretty good description of this. DC
> 
Hey that sounds good. My full charge LED would only light up when engine
is running or immediately after engine shut-off but with no electrical
drain. As soon as you turn something on, no matter how "small", the amber LED
would light. So I guess you could dial in your own cut-off point, say 13.5
Volts? Probably the group has definite views on where the cut-off point
should be.

Alistair