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Topic: Will the LM35 go up to 200 deg C? (Read 1 time) previous topic - next topic

jluciani

A K or J type thermocouple will read these temperatures.
To interface these you will need a thermocouple interface
IC which is typically an SMD part.

I am working with the MAX31855 and K-type thermocouples.
I should have a sketch and schematic later this week.
I am using my PICOBEE board http://wiblocks.luciani.org/PICO/PICOBEE-index.html
to periodically measure temperature and transmit the timestamped data
to a PC.  The MAX31855 has a 14bit ADC and has a resolution
of 0.25degC. Not sure of the accuracy yet.

(* jcl *)

liudr

Thermistors won't last 200 DegC and their housings aren't rated for that temperature. I would use thermocouple too. If you don't need sub DegC accuracy, you can find cheaper infrared remote temperature sensors too.

jluciani

I just added a thermocouple + XBee application hint to my site -- http://wiblocks.luciani.org/docs/app-notes/picobee-tc.html.

I interface a K-type thermocouple using the MAX31885KASA. I use the RTC on the PICOBEE
to periodically interrupt the uC. After an interrupt the temperature is read. The timestamped
data is transmitted using the XBEE.

(* jcl *)

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