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Old 02-20-2010, 05:52 PM   #1
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Default PID not reading correct help

doing some test runs for toomarrow brew and have found the auber RTD is reading approx 20 dEG cold is there any calibration I can do? Have used two therms to verify this thnaks in advance

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Old 02-20-2010, 05:54 PM   #2
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Have you immersed it in ice water? I find the readings are all over the place when left open to room temp. If necessary there is and offset parameter. The inputs can be setup for thermistors or RTD's. Make sure your setup is correct. I find it hard to believe it's 20 °F off.

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Old 02-20-2010, 06:12 PM   #3
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will do the cold check only checking it in the bk

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Old 02-20-2010, 06:23 PM   #4
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Make sure you've got it wired right - 2-wire or 3?

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Old 02-20-2010, 11:21 PM   #5
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There is an offset in the auber PIDs to help calibrate the temp sensor. It is a +/- value you can set. Read the manual. The setting variable you need to change is "Pb".

If you are using a thermocouple, good luck. If the PID changes temp (i.e., gets warm), the reading will be incorrect. This does not apply to thermistors and RTDs.

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Old 02-20-2010, 11:59 PM   #6
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Quote:
Originally Posted by passedpawn View Post
There is an offset in the auber PIDs to help calibrate the temp sensor. It is a +/- value you can set. Read the manual. The setting variable you need to change is "Pb".

If you are using a thermocouple, good luck. If the PID changes temp (i.e., gets warm), the reading will be incorrect. This does not apply to thermistors and RTDs.
passedpawn - OP said RTD, and the actual differential setting varies between PID models.
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Old 02-21-2010, 01:51 AM   #7
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Quote:
Originally Posted by jkarp View Post
passedpawn - OP said RTD, and the actual differential setting varies between PID models.
oops. how'd I miss that.
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Old 02-21-2010, 04:02 PM   #8
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20F seems like a big offset. I calibrated mine in a glass of ice water last night and it was only off by 1F. Mine is on an Auber 2352. Have you modifed the cable for a panel mount or anything?

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Old 02-21-2010, 04:32 PM   #9
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Do you have the right input selected?

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