Jaycar inside/outside thermometer
Submitted: Tuesday, Mar 09, 2004 at 22:26
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Roachie
Back on post # 11000, joc45 talked about the Jaycar electronic thermometer with digital voltmeter and clock.
I bought one, which I've installed and hardwired to my aux battery so it stays on all the time. The remote sensor is in the fridge.
Does anyone else who has one of these notice that the blasted things seems to "beep" at you for no apparent reason?
Reading the instructions it says the beep alarm will sound if the temp outside is below zero degrees (as a warning of ice on the road) or if the battery is either under charged or over charged.
None of those scenarios is present. For the 1st 24 hours while this was happening, the remote temp sensor wasn't even in the fridge (I had to lengthen the cable a metre or so), so it couldn't have been that.....and the battery sits between 12v and 14v which is within the parameters of "okay" for battery condition.
Any ideas? If I knew what to do, I'd disable the beeper.
Cheers,
Roachie
Reply By: joc45 - Tuesday, Mar 09, 2004 at 23:57
Tuesday, Mar 09, 2004 at 23:57
Gad! what have I let myself in for?
Some time since I installed one of these for a mate - didn't seem to have any of the probs you cite. Another friend just installed one, and he didn't mention any probs. Re the lengthening of the wire, I'd say that the resistance of the thermistor in the sensor is so much higher than the wire resistance, that any extra length shouldn't make any difference.
In desperation, I'd be looking at taking it apart to disable the beeper. It'll be a little round thing, perhaps a cm in dia, and would have to be behind a small hole in the case to let the noise out.
Gerry
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