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: 25.060896
dt[ms]=    0.000 
dt[ms]=    2.341 
dt[ms]=    0.934 
dt[ms]=    2.318 
dt[ms]=    1.060 
dt[ms]=    2.300 
dt[ms]=    1.075 
dt[ms]=    2.299 
dt[ms]=    0.948 
dt[ms]=    2.299 
dt[ms]=    1.073 
dt[ms]=    2.308 
dt[ms]=    1.072 
dt[ms]=    2.298 
dt[ms]=    0.950 
dt[ms]=    2.309 
dt[ms]=    1.067 
dt[ms]=    2.302 
dt[ms]=    1.071 
dt[ms]=    2.312 
dt[ms]=    1.065 
dt[ms]=    2.305 
dt[ms]=    0.942 
dt[ms]=    2.356 
dt[ms]=    1.003 
dt[ms]=    2.345 
dt[ms]=    1.049 
dt[ms]=    2.313 
dt[ms]=    0.937 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  106522.00516583027
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.