As you write is almost sure you've polarised in reversed way the sensor.
It's no big deal, reverse again the Vcc with Gnd and you'll have about
2.7315V at 0C with 10mV increases every Celsius degree.
Leave the adjusting pin open without any potentiometer conected to this
pin.
Vasile

On Tue, 24 Jul 2001, Nick Veys wrote:

> Greetings :)  I'm having trouble with some LM35 Centigrade temperature
> sensors... I'm simply trying to read them w/a multimeter and getting
> annoying values.  The Vss and Gnd are 5.12 and 0 respectively, and when
> I go to read the Vout, I get between .667 - .733 V.  Meaning my room is
> a toasty 66.7-73.3C.  Quite warm!  This is happening with 3 separate
> sensors!  Not sure what my problem is...  Any tips?  Perhaps I'm reading
> this totally wrong?
>
> nick@veys.com | www.veys.com/nick
>
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