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: 24.810912000000002
dt[ms]=    0.000 
dt[ms]=    1.305 
dt[ms]=    2.306 
dt[ms]=    1.072 
dt[ms]=    2.300 
dt[ms]=    1.067 
dt[ms]=    2.302 
dt[ms]=    1.077 
dt[ms]=    2.300 
dt[ms]=    0.947 
dt[ms]=    2.302 
dt[ms]=    1.076 
dt[ms]=    2.300 
dt[ms]=    1.053 
dt[ms]=    2.367 
dt[ms]=    0.930 
dt[ms]=    2.323 
dt[ms]=    1.027 
dt[ms]=    2.308 
dt[ms]=    1.071 
dt[ms]=    2.328 
dt[ms]=    1.029 
dt[ms]=    2.319 
dt[ms]=    0.947 
dt[ms]=    2.303 
dt[ms]=    1.070 
dt[ms]=    2.300 
dt[ms]=    1.080 
dt[ms]=    2.296 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  110850.4184408544
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.