

| 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
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