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redleader · 03-09-2005, 01:56 PM

70w iron? jeez i use a 25w.

Anyway if you want to go cheap, theres always the 6658 (IIRC) which you can just request a free sample. I doubt they'll give you a free sample of the 6655EVSYS. The downside is that its an SMB part, so it plugs directly into a motherboard, and not to a serial port. On the upside, it'll read down to -50C, so you can use it with phase change systems too.

For shielded cable, use either coax cable (like for TVs) or just use networking cable. Either will reduce noise a good bit. If you want even clearer readings, you can hook into labview like pH does, and add a 60Hz notch filter there to remove all the power supply noise from the system.

03-09-2005, 01:56 PM	#4
redleader Thermophile Join Date: Jun 2001 Location: The deserts of Tucson, Az Posts: 1,264	70w iron? jeez i use a 25w. Anyway if you want to go cheap, theres always the 6658 (IIRC) which you can just request a free sample. I doubt they'll give you a free sample of the 6655EVSYS. The downside is that its an SMB part, so it plugs directly into a motherboard, and not to a serial port. On the upside, it'll read down to -50C, so you can use it with phase change systems too. For shielded cable, use either coax cable (like for TVs) or just use networking cable. Either will reduce noise a good bit. If you want even clearer readings, you can hook into labview like pH does, and add a 60Hz notch filter there to remove all the power supply noise from the system.