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: 23.123520000000003
dt[ms]=    0.000 
dt[ms]=    3.377 
dt[ms]=    2.317 
dt[ms]=    2.275 
dt[ms]=    1.067 
dt[ms]=    2.319 
dt[ms]=    1.024 
dt[ms]=    2.345 
dt[ms]=    1.051 
dt[ms]=    2.325 
dt[ms]=    0.932 
dt[ms]=    2.301 
dt[ms]=    1.069 
dt[ms]=    2.327 
dt[ms]=    1.021 
dt[ms]=    2.351 
dt[ms]=    0.894 
dt[ms]=    2.363 
dt[ms]=    1.019 
dt[ms]=    2.306 
dt[ms]=    1.063 
dt[ms]=    2.360 
dt[ms]=    0.890 
dt[ms]=    2.356 
dt[ms]=    1.041 
dt[ms]=    2.313 
dt[ms]=    1.070 
dt[ms]=    2.316 
dt[ms]=    1.029 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  110262.04495651936
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.