2 Messages
Digest #2455
1a
Re: [appliance-repair] Re: Help with MH1210F Digital Temperature Con by "Service Specialties" applianceworks
Messages
Wed Feb 24, 2016 1:27 pm (PST) . Posted by:
"Service Specialties" applianceworks
Why don't you go to a hardware store and buy a universal 120 volt electric heater control and set that up between your heater. Bill, 707 443-8347 9-7 PT
On Friday, February 19, 2016 8:42 AM, "rhkramer@gmail.com [appliance-repair]" <appliance-repair@yahoogroups.com> wrote:
Update: Oops, I guess the manual I linked to (below) is for the MH1210A which
has a control range of from -50 to 110 degrees C. The significant difference to
the MH1210F is the control range, which, as stated below is -58℉~194℉. ATM, I
can't find the manual for the MH1210F.
On Friday, February 19, 2016 11:35:44 AM rhkramer@gmail.com wrote:
> I bought a cheap Chinese digital temperature controller:
>
> MH1210F Digital Temperature Control Controller Thermostat 110V -58℉~194℉
> Delay w/Sensor
>
> You can see the "manual" at:
>
> www.szmeihang.com/uploadfile/201401/20140116231623558.pdf
>
> I bought it to serve as a thermostat in a (homebuilt) combination smoker /
> fermentation "cabinet".
>
> Initially I used it to control the temperature to about 70℉ (with the
> cabinet in my basement) to ferment sauerkraut. It worked fine.
>
> Recently, I tried to control the temperature to 170℉ to smoke some pork
> ribs. It did not work properly in that, at 163℉, the temperature on the
> display abruptly jumped to 32.1℉. Because of that, the thermostat would
> no longer control the heat to 170℉, but instead tried to continue to drive
> the temperature from that 32.1℉ back up to 170℉ (well, really 163℉).
>
> Aside: Fortunately (or not), the heating element I use is fairly low
> wattage (400 watts) and would not take the temperature up beyond about 58℉
> on the "revised" attempt to control to 170℉. I do plan on adding more
> insulation on the outside of the cabinet to achieve the required
> temperature with less energy used.
>
> I've tried writing to the people I bought the unit from and tried searching
> the Internet, but so far have found no help.
>
> I believe the temperature sensor is an RTD device, specified as NTC 25
> degrees C = 10K B3435 +/-1% with 1 meter leads.
>
> Does anyone have any experience with this temperature controller or hints
> of any sort.
>
> One thing I didn't think to do was measure the resistance (with an
> ohmmeter) around the time the display changed from 163℉ to 32.1℉ degrees.
> I may try that experiment sometime soon (without ribs ;-), but if there
> are other suggestions for tests I'd like to do them at the same time.
>
> Thanks!
> Randy Kramer
------------------------------------
Posted by: rhkramer@gmail.com
------------------------------------
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On Friday, February 19, 2016 8:42 AM, "rhkramer@gmail.com [appliance-repair]" <appliance-repair@yahoogroups.com> wrote:
Update: Oops, I guess the manual I linked to (below) is for the MH1210A which
has a control range of from -50 to 110 degrees C. The significant difference to
the MH1210F is the control range, which, as stated below is -58℉~194℉. ATM, I
can't find the manual for the MH1210F.
On Friday, February 19, 2016 11:35:44 AM rhkramer@gmail.com wrote:
> I bought a cheap Chinese digital temperature controller:
>
> MH1210F Digital Temperature Control Controller Thermostat 110V -58℉~194℉
> Delay w/Sensor
>
> You can see the "manual" at:
>
> www.szmeihang.com/uploadfile/201401/20140116231623558.pdf
>
> I bought it to serve as a thermostat in a (homebuilt) combination smoker /
> fermentation "cabinet".
>
> Initially I used it to control the temperature to about 70℉ (with the
> cabinet in my basement) to ferment sauerkraut. It worked fine.
>
> Recently, I tried to control the temperature to 170℉ to smoke some pork
> ribs. It did not work properly in that, at 163℉, the temperature on the
> display abruptly jumped to 32.1℉. Because of that, the thermostat would
> no longer control the heat to 170℉, but instead tried to continue to drive
> the temperature from that 32.1℉ back up to 170℉ (well, really 163℉).
>
> Aside: Fortunately (or not), the heating element I use is fairly low
> wattage (400 watts) and would not take the temperature up beyond about 58℉
> on the "revised" attempt to control to 170℉. I do plan on adding more
> insulation on the outside of the cabinet to achieve the required
> temperature with less energy used.
>
> I've tried writing to the people I bought the unit from and tried searching
> the Internet, but so far have found no help.
>
> I believe the temperature sensor is an RTD device, specified as NTC 25
> degrees C = 10K B3435 +/-1% with 1 meter leads.
>
> Does anyone have any experience with this temperature controller or hints
> of any sort.
>
> One thing I didn't think to do was measure the resistance (with an
> ohmmeter) around the time the display changed from 163℉ to 32.1℉ degrees.
> I may try that experiment sometime soon (without ribs ;-), but if there
> are other suggestions for tests I'd like to do them at the same time.
>
> Thanks!
> Randy Kramer
------------------------------------
Posted by: rhkramer@gmail.com
------------------------------------
All advice on repairs to microwave ovens should only be undertaken by qualified service personnel.
To unsubscribe please send a mail to the following address from the account you recieve this message.
appliance-repair-unsubscribe@yahoogroups.com
------------
Yahoo Groups Links
Wed Feb 24, 2016 7:52 pm (PST) . Posted by:
rhkramer03
On Wednesday, February 24, 2016 04:24:40 PM Service Specialties
applianceworks@yahoo.com [appliance-repair] wrote:
> Why don't you go to a hardware store and buy a universal 120 volt
> electric heater control and set that up between your heater. Bill, 707
> 443-8347 9-7 PT
Thanks for the reply!
That's a reasonable idea, and might be what I have to do, but I'd like to
figure out the problem with the device I have, even if just to satisfy my
curiosity.
applianceworks@yahoo.com [appliance-repair] wrote:
> Why don't you go to a hardware store and buy a universal 120 volt
> electric heater control and set that up between your heater. Bill, 707
> 443-8347 9-7 PT
Thanks for the reply!
That's a reasonable idea, and might be what I have to do, but I'd like to
figure out the problem with the device I have, even if just to satisfy my
curiosity.
All advice on repairs to microwave ovens should only be undertaken by qualified service personnel.
To unsubscribe please send a mail to the following address from the account you recieve this message.
appliance-repair-unsubscribe@yahoogroups.com
To unsubscribe please send a mail to the following address from the account you recieve this message.
appliance-repair-unsubscribe@yahoogroups.com
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