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: 26.373312000000002
dt[ms]=    0.000 
dt[ms]=    2.374 
dt[ms]=    3.277 
dt[ms]=    3.248 
dt[ms]=    0.914 
dt[ms]=    2.319 
dt[ms]=    0.951 
dt[ms]=    2.306 
dt[ms]=    1.069 
dt[ms]=    2.298 
dt[ms]=    1.071 
dt[ms]=    2.306 
dt[ms]=    1.073 
dt[ms]=    2.308 
dt[ms]=    0.939 
dt[ms]=    2.304 
dt[ms]=    1.075 
dt[ms]=    2.300 
dt[ms]=    1.075 
dt[ms]=    2.310 
dt[ms]=    0.940 
dt[ms]=    2.299 
dt[ms]=    1.072 
dt[ms]=    2.306 
dt[ms]=    1.073 
dt[ms]=    2.309 
dt[ms]=    1.062 
dt[ms]=    2.305 
dt[ms]=    0.948 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  102170.26288514632
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.