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: 27.873216000000003
dt[ms]=    0.000 
dt[ms]=    2.369 
dt[ms]=    0.921 
dt[ms]=    2.308 
dt[ms]=    1.056 
dt[ms]=    2.335 
dt[ms]=    1.053 
dt[ms]=    2.310 
dt[ms]=    0.919 
dt[ms]=    2.325 
dt[ms]=    1.067 
dt[ms]=    2.309 
dt[ms]=    1.063 
dt[ms]=    2.326 
dt[ms]=    1.043 
dt[ms]=    2.327 
dt[ms]=    0.925 
dt[ms]=    2.335 
dt[ms]=    1.039 
dt[ms]=    2.309 
dt[ms]=    1.062 
dt[ms]=    2.340 
dt[ms]=    0.918 
dt[ms]=    2.345 
dt[ms]=    1.054 
dt[ms]=    2.310 
dt[ms]=    1.042 
dt[ms]=    2.306 
dt[ms]=    0.939 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  108.64650464009226
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.