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Topic: older chipsets and hottop digital control panel (3 msgs / 77 lines)
1) From: Clifton Burkett
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I have one of the older hottops with the older chipset. Does the updated
chipset do anything other than increse the extended time when you use =
the
plus button?  I usually roast rather light and manually stop the roast =
so
multiple plus punchings is rarely an issue so I still have the older =
chip in
place. Does the new control panel have a new logic board and new chip? =
or is
the older chip compatible with the new digital control panel ? Anyone =
put
the new digital control panel in an older HotTop?
 
Da Odie - SomeWhere in Florida with
Clif the Human and Garfield the Tabby 
 

2) From: McConnel
This is a multi-part message in MIME format.
MessageI got my Hottop 2 years ago with what I believe to be the hotter =
chipset. Last winter the control panel buttons began to fail so I =
contacted hottopusa and Michael offered me a new control panel with the =
digital readout for around $100. Since then I noted I could not get a =
fahrenheit temp displayed so he sent me a freebie chip to replace an =
older one. Now I can display either scale.
What makes the replacement more than worthwhile is the fact that you set =
a timer rather than some vague roast level. The basic times are 17:00 =
minutes to 21:00 minutes. After the machine goes through its warm-up =
cycle, the countdown timer begins. So you can always see how much roast =
time you have left--much nicer than the old one. The temperature readout =
is much lower than a thermocouple probe lowered into the bean mass, but =
it seems consistent and thus useable with some interpolation.
Hope this helps.
tommcconnel

3) From: David Springston
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Clif,
    I use the new panel in an old Hottop and like you I always stop the =
roast manually.  When I ordered the panel (before Sweet Maria's carried =
it) from the Hottop folks, they told me that besides the addition of the =
timer there was also some changes to the profile.  From the measurements =
I have taken the difference between the profiles seems to be towards the =
end.  On the old panel my probe would measure the environment =
temperature (at the input shoot) would get over 470 degrees F, with the =
new panel it has been as high as 460 but most often it sits in the mid =
450's.
    My usual roast size is 227 grams, sometimes 250 grams but to roast a =
dark roast at 250 grams or more, especially if it is not the first roast =
- the roast time will extend to around 20 min. which I feel is to long.  =
Because of this I started to use a 227 gram roast size.
David


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