[RASMB] Diagnose the error message

[Virgil]

Hi Tom,

I have these types of conversations with my instruments all the time. 
Doesn't everyone?

Cheers,

Virgil

Tom Laue wrote:
> Hi Mark-
> The 12948684800 diagnostic message value seems bogus, suggesting that 
> there may have been a communications error between the XLI and the 
> computer. I can almost hear the conversation now:
> Computer program:     12948684800 (a garbled attempt to say "Send 
> current settings")
> XLI:                            DIAGNOSTIC  12948684800 RECEIVED
>                                  What?
> Computer program:     I said- 12948684800
> XLI:                            DIAGNOSTIC  12948684800 RECEIVED
>                                  What
> Computer program:     I said- 12948684800
> etc.
> I have had similar conversations with students. I won't say which side 
> is mine...
> Tom
>
> Virgil Schirf wrote:
>> Hi Mark,
>>
>> Do you have any vacuum issues as well as temperature issues? We have 
>> seen temperature fluctuations if there a problem with the vacuum 
>> system thus causing both the vacuum pump and thermal electric modules 
>> to work harder. The temperature should remain steady within ±0.5°C on 
>> an instrument that has been allowed to temperature equilibrate (both 
>> the rotor and the samples) and the vacuum to reach ~ 0 microns before 
>> starting. I agree with Barbara that cooling the rotor in a fridge for 
>> lower temperature velocity runs is a good idea and lessens the strain 
>> on the cooling system of the XL/I.
>>
>> Cheers,
>>
>> Virgil
>>
>> Mark Agacan wrote:
>>> Hello,
>>>
>>> My XL-I was running overnight at 10 degrees C, at some point in the
>>> experiment an error was received:
>>>
>>> DIAGNOSTIC  12948684800 RECEIVED
>>>
>>> The entire roll of print-out paper in the XL-I spewed out with the 
>>> above
>>> error message to form a pile roughly the size of the XL-I itself.  I
>>> checked the troubleshooting section in the manual, an error message
>>> starting with a 1 implies a 'CPU-Microprocessor malfunction or loss of
>>> program memory'-type error.
>>>
>>> The XL-I worked fine the next day but I was working at 16 degrees C. 
>>> Could temperature be the cause of the above error message.  We have had
>>> problems with big temperature fluctuations recently, the XL-I motor
>>> seems to generate a lot of heat, with the result that i have to keep 
>>> the
>>> lab door open to keep the experiment at a stable temperature.  For
>>> example, it took around twice as long (> 5 hours) for the XL-I to fully
>>> thermally equilibrate at 10 C as it did for 16 C.
>>>
>>> Does anyone have any knowledge of the above error, or has anyone had
>>> serious issues with the temperature stability of an XL-I?
>>>
>>> Cheers,
>>>
>>> Mark
>>>
>>>
>>> _____________________________________
>>> Dr Mark Agacan
>>> Scientific Officer,
>>> Division of Biological Chemistry and Drug Discovery,
>>> Wellcome Trust Biocentre,
>>> College of Life Sciences,
>>> Dow St., University of Dundee,
>>> Dundee, DD1 5EH
>>> Tel: +44 1382 388751
>>> Fax: +44 1382 345764
>>> _____________________________________
>>> _______________________________________________
>>> RASMB mailing list
>>> RASMB at rasmb.bbri.org
>>> http://rasmb.bbri.org/mailman/listinfo/rasmb
>>>
>>>   
>>
>>
>