Re: Problems with ****madzu GC/MS-QP2010 Turbo Molecular Pumps

George Orwell wrote:

> PROBLEMS WITH TURBO MOLECULAR PUMP OF ****MADZU GCMS-QP2010
> http://www.sepsci.com/chromforum/viewtopic.php?p=38774
> 
> We are users of a ****MADZU GCMS-QP2010, since we bought it we have a
> lot of problems: the ion source are dirty without a reason, repetitive
> leaks that we can solve, the “gain” changes suddenly, tuning problems
> (appears the message “Mass number calibration error”), software
> problems and a lot of combipal syringes are doubled. The last
> breakdown had been the fault of a turbo molecular pump.
> 
> We would contact with other ****MADZU users because we would know if
> they have had problems with this equipment, especially breakdowns of
> turbo molecular pumps.
> 
> CRISTINA DURAN
> Location: Lleida - Spain
> 
> 
> Dear Cristina.
> 
> We have a QP2010 too.
> 
> The turbo pump number 1( because it has two) Just failed last week
> after four years of use .....and yours?.
> 
> I usually perform autotunig with a DB or HP 30m x 0.25 x 0.25 and
> results good. To do autotuning with a wide bore or megabore column is
> run in trouble because there isnt enough vacuum level.
> 
> pueblito
> 
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Nice try; we know who you are;)