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Old 10-27-2011, 09:15 AM   #1
bloke
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Default Pid syl-2352 problem

HI,

I dont get my syl-2352(auberins) and TC K100M probe(http://www.auberins.com/index.php?ma...ts_id=165),SSR 25A to work properly.
Everything should be connected the right way.

Problem is i can get the the temp to stay at the set "sv" value 65 degrees Celsius in my case. It alway gets higher and higher.

after an autotune it starts ok and heater stops a bit under the set "sv" temp but after a while the "pv" value is a few degrees over "sv" and the heater starts even if the "pv" value is higher than the choosen "sv" value. How is this possible? Im getting nuts here soon. please help!!

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Old 10-27-2011, 01:47 PM   #2
mavrick1903
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Call Auber. I had a problem with mine too (my problem, not theirs) they helped me walk through what was wrong. likely a connection somewhere is not what it should be.

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Old 10-29-2011, 09:59 PM   #3
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ok so i got an answer from Auber.

telling me to reset the pid settings to default and run again.
so I did but temp. still getting too high.

Then I did an autotune again with with a starting water temp of 24 degrees C.
After that I could get temp to be with in 2 degress from SV value 65 Celsius

strange ting is that is heats up when it´s at 65 and heating too 66-67 to let it cool down to 65 and start again...

Any ideas how i can manipulate the P, I, or D or any maybe HY values to make it hold it at 65 or at east let it cool to 64 and warm up to 65

cheers

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Old 10-30-2011, 12:19 AM   #4
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read post#13 http://www.homebrewtalk.com/f170/aub...issues-234714/

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Old 01-21-2012, 04:07 PM   #5
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this pid really make me go crazy!!
I had it calibrated to 65degress yesterday when i heated up my HLT with 2 other
thermometers in the water. when it was 65 degrees I calibrated my pid to that temp.

today when i tried to heat it up again I had the sv value to 65. when the pv value also
was at 65 and it was stable( i have the pid controller in on/off mode, as thermostat)
the other 2 thermometers told me another story. was about 10 degrees wrong again

why is the damn controller give me different values every time? anyone?

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Old 01-21-2012, 05:07 PM   #6
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Are they all the same thermos. RTD or Thermocouple? Why 65? Calibrate at 152-155. I have several thermos that read different at different temps but the same calibrated at mash temps.

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Old 01-21-2012, 05:48 PM   #7
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thanks for your reply stevo!
The one in my HLT is a thermocouple, I have ordered a new RTD from Auber.
Well 65 as in celsius degrees is about 152 F.

are you saying that even if calibrated it will only tell the right temp at the temp you did
calibrate it at? well that cant me right. it have to be at a 0.01 error margin but better about one degree at least.

What about the 10 degree error at the same mash degree from day to day? isnt that really strange?

cheers
"even a stopped clock shows the right time twice a day"

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Old 01-21-2012, 06:25 PM   #8
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A loose connection or poor ground will often create crazy readings with a thermocouple. I use the RTD from Auber with no problems like that. My thermocouples with my BCS controller can do some crazy stuff.

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Old 01-21-2012, 06:36 PM   #9
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Quote:
Originally Posted by bloke
thanks for your reply stevo!
The one in my HLT is a thermocouple, I have ordered a new RTD from Auber.
Well 65 as in celsius degrees is about 152 F.

are you saying that even if calibrated it will only tell the right temp at the temp you did
calibrate it at? well that cant me right. it have to be at a 0.01 error margin but better about one degree at least.

What about the 10 degree error at the same mash degree from day to day? isnt that really strange?

cheers
"even a stopped clock shows the right time twice a day"
Ahh. 65 C.
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Old 01-21-2012, 06:37 PM   #10
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i had problems with my pid and thermalcouple as described. Turns out, i needed to vent my control box. If i remeber right there is an ambient sensor on the back of the PID controller where the thermalcouple connects. if your ambient temp is off, so is the reading of the TC. this thread might help http://www.homebrewtalk.com/f170/k-t...2352-a-290249/

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