Linux native USB library loaded.
spectrometer type: HR2000+ s/n: HR+C1886 number of channels: 1 firmware: 3.30.0 
Integration time 1.67 [ms], number of spectra 29 Sampling time 50000.0
Number of pixels: 2048
acquiring the readoutnoise patterns
Loop 1 of infinite
Waiting on trigger
Spectra acquired
Background acquired
Spectra acquired
board temperature: 24.310944000000003
dt[ms]=    0.000 
dt[ms]=    1.291 
dt[ms]=    2.338 
dt[ms]=    1.041 
dt[ms]=    2.303 
dt[ms]=    1.073 
dt[ms]=    2.315 
dt[ms]=    0.924 
dt[ms]=    2.307 
dt[ms]=    1.079 
dt[ms]=    2.305 
dt[ms]=    1.082 
dt[ms]=    2.307 
dt[ms]=    0.924 
dt[ms]=    2.308 
dt[ms]=    1.067 
dt[ms]=    2.308 
dt[ms]=    1.073 
dt[ms]=    2.315 
dt[ms]=    1.077 
dt[ms]=    2.292 
dt[ms]=    0.945 
dt[ms]=    2.297 
dt[ms]=    1.077 
dt[ms]=    2.307 
dt[ms]=    1.083 
dt[ms]=    2.312 
dt[ms]=    0.933 
dt[ms]=    2.315 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  115058.43785950594
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.