Steve Rooke wrote: > 2009/2/5 Magnus Danielson <[email protected]>: > >> Tom Van Baak skrev: >> >> I don't think 0,25 C resolution is worthless, but it can still do good work. >> >> > > Sorry for the heavy editing but I have been following this thread > closely. Now if the temperature circuit only reacts to changes of > 0.25C then doesn't that represent quite a bit of hysteresis in the > system, and is liable to cause overshoot, or am I missing something > here. > > 73, Steve > According to the data sheet the readout resolution in normal 9 bit mode is actually 0.5C not 0.25C. The firmware appears to offset the temperature output data by -0.25C from the DS1620 reading. The high resolution mode has 12 bits resolution or about 0.0625C. Conversion time from temperature to digital is about 750ms.
Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
