Adjusting temperature probe

[MAXreefer]

I have the Profilux II EX with firmware 4.05
I have done the upgrade to Beta version 4.06 but decided to go back to 4.05 until 4.06 was fully released.
Since I switched back to 4.05 it seems my temperature is about 1 to 1.5 degrees Fahrenheit off. This was not the case BEFORE I did the upgrade but only since I went back.
I compared with 2 different thermometers and the temp display from my chiller.
For example both thermometers show 79 but the Profilux shows 80 to 80.4.
I tried to run the calibration on the controller but this didn't change anything. The controller is only about 2-3 months old.

Any ideas what could be wrong or is there a way I can manually change the temp settings on the controller to match the 2 other thermometers.

Thanks for any help
Michael

[Matthias]

Hi Michael,

the update (or downgrade) process does not change the temperature probe calibration.
If you want that the ProfiLux shows values which match the other 2 thermometers than you can do a "calibration" with ProfiLuxControl.
The old (factory) calibration can be restored any time by invoking "calibration" menu on the device itself.

[MAXreefer]

Hey Matthias,
thanks for your quick reply.

Just to be sure:
When I do it on the Controller itself and go to temp -> callibration and confirm the controller immediately asks for " save settings" Yes or No. When I select YES nothing really changes and the Temp. is still about 1 degree off.

I guess with the "calibration" in the software you mean:
"Adjust Temperature" in the Temp section?
As I think to remember all the settings have to be done in Celcius even when using Fahrenheit as a display?
Therefore I converted the
Profilux temperature display: 80 -> 26.7
Thermometer display: 78.5 -> 25.8

So technically if where it says "I want the temp reading to be" ..... lowered or raised I should put in "0.9" and then select LOWERED.
When this is done the Controller will activate heaters etc based on the NEW values?

Hope that makes sense?
Michael

[Matthias]

yes, I mean "adjust temperature" in ProfiLuxControl

the temperature control will work with the new adjusted temperature

if you perform "calibation" on the device the factory calibration is restored - if the readings do not change after doing this the calibration values have not been changed before

[MAXreefer]

ok. Just wanted to be sure

Vielen Dank
Michael